Philips Consumer Electronics North America64 Perimeter Center EastAtlanta, GA 30346

EBJ1.0U RA TV CHASSIS

TECHNICAL TRAINING MANUAL

Table of Contents

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1Board Level Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7Troubleshooting Flow Charts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9Circuit Board Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9Video Signal Flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12MSB Video Signal Flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14CRT Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16Audio Signal Flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17Audio Amplifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17Fixed level output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21Audio Shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21Horizontal Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24Vertical Amplifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24High Voltage and Dynamic Focus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25Sweep Failure Detection and Blanking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28AC Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30Standby Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30Main Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32MSB Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35SSB DC-DC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36Convergence Processor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38Convergence Horizontal output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38Convergence Vertical output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38SSB System Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42MSB System Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44Service Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54

Introduction

The EBJ1.0 chassis is designed for introduction in the 2006 model year. This chassis uses afully integrated tuning system capable of tuning both NTSC and ATSC channels. The HDTVtuner can decode both terrestrial 8VSB and unscrambled cable (64/256 QAM) signals. Thechassis uses a scaled down version of the BP and BL chassis from 2005. These sets comein a 51 and 60 inch screen sizes.

Models

51MP6200D/37 51 inch51PP9200D/37 51 inch60PP9200D/37 60 inch

Features

Supported Display Resolutions

Resolution Refresh Rate

1080i 60Hz480i 60Hz480p 60Hz720p 60Hz

Regardless of the input, the picture will be displayed in a 1080iformat.

Sound

Sound output power 2 x 10WSound Enhancement Auto Volume Leveller,

balance, Treble, Bass controlsSound System AC-3 Dolby Digital Decoding

Connectivity (Figure 1)

AV1 CVBS in, HDMI, CVIAV2 CVBS, Component Video inAV3 S-Video, Y/C, CVBS inSide CVBS in, Y/COutput Rear Audio L/R outAudio out Digital SPDIF

The EBJ1.0 chassis has a 208 point convergence system to provide the best picturealignment possible.

FIGURE 1 - JACK PANEL

Page 1

My Content button selects between the TVand the contents of the USB Memory.

SAM (Service Alignment Mode) Press 0 6 25 9 6 Info

Colored buttons are necessary toprogram the set and to enter theservice alignment mode.

Page 2

Transporting the TV or magnetic fields in the room where the TV is located may cause thethree picture tubes to become misaligned. A Multi-Point convergence is present in the cus-tomer menu to adjust for minor changes. This is accomplished by adjusted 35 points on theTV screen using the Convergence section inthe Picture menu.

After inserting a USB Memory device into the sidejack panel, this menu will appear. Picture files inthe *.JPG format stored on the USB Memory canbe viewed. MP3 files can also be played. (Figure2)

Press the “My Content” button on the remote toselect the USB port.

If it should become necessary to update software inthe set, the new software can be placed on theUSB Memory. (Figure 3) If the software is laterthan the version in the set, it will automaticallyload. The latest software can be found atwww.philips.com/usasupport.

The current software version of the set can befound in the Settings\Installation\Softwareupgrade\Current software info menu.

After downloading the software, rename it to“autorun.upg” and copy it to the root directory ofthe USB Memory. Turn the TV Off and insert theMemory. Turn the TV On. The TV will automati-cally go to the upgrade mode. (Figure 4) After afew seconds, it will display the status of theupgrade procedure.

Manual Upgrade

To reload the present software version or aprevious version, select Settings\Installation\soft-ware upgrade” in the menu. (Figure 5)

Load the “autorun.upg” file in a directory called“Upgrades” on the USB Memory.

For additional information refer to the Directionsfor Use supplied with the set. To download theDFU, go to the Philips support site.

FIGURE 2

FIGURE 3

FIGURE 4

FIGURE 5

Page 3

Screen FormatsFigure 6

There are sevenscreen formats avail-able when viewing anAnalog (NTSC) orDigital (ATSC) signalbeing transmitted inthe StandardDefinition (SD)format. Notice that insome of theseformats, not all of thepicture is visible.

There are two screenformats availablewhen viewing aDigital (ATSC) signaltransmitted in the HDHigh Definition for-mat. The two formats available in withATSC are Automatic and Wide Screen.In Automatic the screen will expand tofill the screen regardless of the formatbeing transmitted. In the Wide Screenmode, the broadcast station may besending the signal with black bars oneach side.

Weak Channel (Figure 7)

As in previous sets with ATSC tuning,a Weak Channel Installation selectionis available when tuning terrestrial sig-nals. During setup these are programmed when the antenna selection is made. Thisselection provides a signal level indicator when tuning additional channels as the antenna isturned.

This selection is not available when tuning in the cable mode.

FIGURE 6

FIGURE 7

Page 4

Manual convergence

Clock

Preferences

Source

Convergence

Settings

Setup 4 Convergence

Convergence redManual convergence

Convergence blue

Multipoint red

Multipoint blue

Save multipoint

Save undo multipoint

Restore factory

Settings | Setup

Convergence Manual convergence 7

Convergence red

Convergence blue

Multipoint red

Multipoint blue

Save multipoint

Save undo multipoint

Restore factory

Start now

Settings | Setup

Manual convergence 7Manual convergence

Manual convergence 7Multipoint red

Settings | Setup | Convergence

Multipoint red

Convergence blue

Multipoint red

Convergence red

Save multipoint

Save undo multipoint

Restore factory

Start now

Customer Convergence (Figure 8)

A rear projection television has three tubes,Red, Green and Blue with the pictures of eachconverged with each other to display a perfectlyaligned picture on the screen. An electronicconvergence system provides the correctionsignals to keep the beams perfectly aligned.These beams are aligned at the factory toproduce a converged picture. When the set ismoved, subjected to mechanical stress orplaced in an area where the magnetic field maychange will cause the beams to mis-align.

Customer adjustments are available to thecustomer to make minor corrections in case thebeams become mis-aligned.

The customer can make multi-point adjustments oradjust just the picture center. (Figure 9) Thecustomer can select one center cross or a 35 pointadjustment.

Figure 10

Using the Info button on the remote, the customercan switch between Navigate or Adjust.

When in the Navigate mode, use the cursor buttonsto select the desired location to adjust.

When in the adjust mode, use the cursor buttons toalign the colors.

A map showing the customer menus is shown in figure 11.

FIGURE 8

FIGURE 9

FIGURE 10

Page 5

TV SETU

PIN

STAL

LATI

ON

DEM

OEX

IT

AUTO

PIC

TURE

CON

TRAS

TBR

IGH

TNES

SCO

LOR

SHAR

PNES

SCO

LOR

TEM

PERA

TURE

DIG

ITAL

PRO

CESS

ING

DYN

AMIC

CO

NTR

AST

DN

RCO

LOR

ENH

ANCE

MEN

TTI

NT

PICT

URE

FO

RMAT

ACTI

VE C

ON

TRO

L

PICT

URE

SOU

ND

FEAT

URE

SCH

ANN

ELS

PERS

ON

ALRI

CHN

ATU

RAL

SOFT

MU

LTIM

EDIA

ECO

NO

RMAL

WAR

MCO

OL

STAN

DAR

DPI

XEL

PLU

S

OFF

MIN

IMU

MM

EDIU

MM

AXIM

UM

MAX

IMU

MM

EDIU

MM

INIM

UM

OFF

OFF

ON

AUTO

MAT

ICSU

PER

ZOO

M4:

3M

OVI

E EX

PAN

D 1

4:9

MO

VIE

EXPA

ND

16:

916

:9 S

UBT

ITLE

WID

E SC

REEN

MIN

IMU

MM

EDIU

MM

AXIM

UM

OFF

AUTO

SO

UN

DVO

LUM

EBA

LAN

CEH

EAD

PHO

NE

VOL

SOU

ND

MO

DE

ALTE

RNAT

E AU

DIO

DIG

ITAL

AU

DIO

LAN

GU

AGE

MO

NO

/STE

REO

AVL

DEL

TA V

OLU

ME

PERS

ON

ALSP

EECH

MU

SIC

MO

VIES

MU

LTIM

EDIA

STER

EOVI

RTU

AL D

OLB

Y SU

RR

MAI

NSA

P

OFF

ON

CLO

SED

CAP

TIO

NS

SLEE

PTIM

ER

OFF

ON

ON

DU

RIN

G M

UTE

LOCK

AFT

ERCH

ANN

EL L

OCK

TV R

ATIN

GS

LOCK

MO

VIE

RATI

NG

S LO

CKPR

EFER

RED

CH

ANN

ELS

ENTE

R PI

NTI

MER

TIM

E

ENTE

R PI

N(C

HAN

NEL

LIS

T)

ENTE

R PI

NAL

LN

ON

ETV

-YTV

-Y7

TV-G

TV-P

GTV

-14

TV-M

A

ENTE

R PI

NAL

LN

RG PG PG

-13

R NC-

17X

PREF

EREN

CES

SOU

RCE

CLO

CK

PICT

URE

/SO

UN

DFE

ATU

RES

MEN

URE

SET

AV S

ETTI

NG

PIP

FORM

ATAU

TO S

URR

OU

ND

DU

AL S

CREE

NPI

P

OFF

ON

CAPT

ION

SER

VICE

DIG

ITAL

CAP

TIO

N S

ERVI

CED

IGIT

AL C

APTI

ON

OPT

ION

S

CC1

CC2

CC3

CC4

T1 T2 T3 T4 CS1

CS2

CS3

CS4

CS5

CS6

RESE

T TO

DEF

AULT

SIZE

STYL

ETE

XTBA

CKG

ROU

ND

DEF

AULT

SMAL

LST

AND

ARD

LARG

E

DEF

AULT

MO

NO

SPAC

ED S

ERIF

SERI

FM

ON

OSP

ACED

SAN

SSA

NS

SERI

FCA

SUAL

CURS

IVE

SMAL

L CA

PS

COLO

RO

PACI

TYBL

ACK

WH

ITE

RED

GRE

ENBL

UE

YELL

OW

MAG

ENTA

CYAN

DEF

AULT

SOLI

DTR

ANSP

AREN

TTR

ANSL

UCE

NT

FLAS

HIN

G

COLO

RO

PACI

TY

OSD

SHO

W E

MER

GEN

CY A

LERT

SCH

ANG

E PI

N

NO

RMAL

MIN

IMU

M

ALW

AYS

SKIP

LO

W P

RIO

RITY

SKIP

MED

IUM

LAN

GU

AGE

AUTO

PRO

GRA

MW

EAK

CHAN

NEL

INST

ALLA

TIO

N (T

ERRE

STRI

AL O

NLY

)SO

FTW

ARE

UPG

RAD

E

ENG

LISH

FRAN

CAIS

ESPA

NO

L

CURR

ENT

SOFT

WAR

EIN

FOLO

CAL

UPG

RAD

E

PIXE

L PL

US

ACTI

VE C

ON

TRO

L

ANTE

NN

ACA

BLE

AUTO

PRO

GRA

M C

H

AV1

AV2

AV3

HD

MI

SID

EAN

ALO

G A

UD

IO IN

AUTO

CLO

CK M

OD

EAU

TO C

LOCK

CH

ANN

ELTI

ME

DAY

TIM

E ZO

NE

DAY

LIG

HT

SAVI

NG

S

STAR

T

CON

VERG

ENCE

MAN

UAL

CON

VERG

ENCE

CON

VERG

ENCE

RED

CON

VERG

ENCE

BLU

EM

ULT

IPO

INT

RED

MU

LTIP

OIN

T BL

UE

SAVE

MU

LTIP

OIN

TSA

VE U

ND

O M

ULT

IPO

INT

REST

ORE

FAC

TORY

FIGURE 11 - CUSTOMER MENU MAPPage 6

Board Level Circuit Explanation (Figure 12)

The EBJ1.0 is designed for module level replacement. However if circumstances shoulddictate, component level repair is possible.

The chassis has three main boards, SSB, MSB, and LSB. There is also an LED Keyboardpanel, a Side Jack panel, a Constant Level Audio output panel, and three CRT panels.

The SSB (Small Signal Board) performs set control, video processing, audio processing, andaudio amplification. All of the AV inputs except those located on the Side Jack panel arelocated on the SSB. The SSB uses large scale circuit integration using BGAs and surfacemounted components. Special soldering equipment is required to perform component levelrepair on this board. The NTSC/ATSC turner is also located on the SSB.

The MSB (Main Signal Board) interfaces with the SSB. Some power switching functions areperformed on this panel. Output video processing and CRT drives are located on this board.The convergence processor and outputs are located on this panel. A separate microproces-sor located on this panel performs the control functions for this and the LSB. An NVM islocated on this panel which stores the convergence, geometry, and white drive settings. Thisprocessor is controlled by the SSB.

The LSB (Large Signal Board) has the standby power supply, main power supply, horizontaldrive, vertical drive, and high voltage circuits. In standby, only the standby supply is operat-ing. When the set is switched On, all the other circuits are switched On.

Troubleshooting

Dead Set

When AC power is applied to the set, 5 volts should be present on Pin 1 of 1504 on the LSB.If this voltage is not present, the LSB (Large Signal Board) should be repaired or replaced.Next, check the 5 volt supply on Pin 4 of connector 1523 on the MSB. This is the standbyvoltage for the SSB. If the circuits on the SSB are working correctly, the Standby line on Pin11 of 1J02 on the SSB or 1523 on the MSB should be High. When the power button ispressed on the front keyboard or the remote, this line should go Low. If not, the SSB shouldbe repaired or replaced.

When the Standby line goes Low on the SSB, the main power supply located on the LSBshould turn On. If the main supply does not switch On, check Pin 12 of 1504 on the LSB. Ifthis point does not go Low, check connections on the MSB.

If all of the supplies have switched On, the High voltage on the LSB should turn On. Thisvoltage is developed by the HVG (High Voltage Generator) on the LSB. Horizontal (line) andVertical (frame) drive is generated on the MSB and fed to the LSB. If either of these drivesare missing, the HVG will not turn On. These drives can only be checked with an oscillo-scope.

Page 7

1 2 3 4 5 6 7 8 9 10 11 12 13

8 12 1310 1194 6 752 31N

CN

CN

C+5

V2+5

V2G

ND

GN

DG

ND

+12V

+12V

STAN

DBY

NC

NC

1J02

1523

1D50

RXD

8 109N

CTX

D

GN

D4 6 75

VD GN

D

HD

2 31G BR

8

1612

1094 6 752 31

11N

C11

4 652 31

4 652 31

GN

D

+35V

GN

D

-22V

-22V

-35V

1516

1553

1519

GN

D8

+12V

STBY

1210 119+1

2VG

ND

GN

D4 6 75

GN

DPO

WER

FAI

L

GN

D

2 31+5

V2+5

V2

+5V2

8 12

1504

10 1194 6 752 31

1234567

3

12

6

45

7

-18V -VAUDIO-18 -VAUDIOGNDGND+18V +VAUDIO+18V +VAUDIONC

1517

1M02

12111098

1620

7654321

DPC

HD

RSC

OH

FP

GN

D

12111098FL

ASH

EWO

EHT

VERT

VERT

GN

DAB

L

7654

1910

321

3

12

1702

GNDBGND

11710

32

GND

GNDG

1

1720

32

GND

GNDR

42 31

1005

RV-O

UT

RV-R

ETRH

-OU

TRH

-RET

RED

CON

VYO

KE

42

1006

31

YOKE

GRE

EN

GH

-RET

GV-

RET

GH

-OU

T

GV-

OU

T

3

1007

41 2BH

-OU

TYO

KEBH

-RET

BLU

EBV

-OU

TBV

-RET

CON

V

CON

V321

45

2

543

1+8VDAC+12VGNDBLKIN

1 2 3 4 5 3 41 2

432153 41 2+8

VD

AC+1

2VG

ND

BLKI

N

200V

GN

DFI

LAM

ENT

G1

1207

1210

1217 1212

1207 1202

21

3

1210

200V

GN

D

G1

FILA

MEN

T

1212

4321

+8V

DAC

+12V

GN

DBL

KIN

1217

53 41 2

1202

3 41 25

1207

432112

10

123

200V

GN

D

G1

FILA

MEN

T

21

34

200V

GN

D

G1

4321

FILA

MEN

T

1202

4

1803

3

1802

1 242 31

1801

3 41 2

YOKE

DEF

LECT

ION

DEF

LECT

ION

GRE

EN

BLU

E

YOKE

RED

DEF

LECT

ION

YOKE

V-H

IV-

LO

HO

RIZ-

HI

HO

RIZ-

LO

HO

RIZ-

LO

V-LO

V-H

I

HO

RIZ-

HI

HO

RIZ-

HI

HO

RIZ-

LOV-

HI

V-LO

1809

1505

1 4

1721

RED

CRT

BOAR

DG

REEN

CRT

BOAR

DBL

UE

CRT

BOAR

D

2 31

1M01

1214

4 652 31

62 4 531

1 32

1103

1M21

GN

DKE

YBO

ARD

GN

D

LIG

HT

SEN

SOR

GN

DRC LE

D-S

EL+5

V2-S

TBY

PC-T

V-LE

D

KEYB

OAR

D

LED

PA

NEL

119 107 85 63 41 2

86 74 52 31G

ND

FRO

NT_

Y-CV

BSG

ND

FRO

NT-

CG

ND

AUD

IO_I

N5_

LFR

ON

T D

ETEC

TAU

DIO

_IN

5_R

1M36

1305

FQ00

FQ01

FQ02

FQ04

GN

DG

ND

654321

42 31

1M60

1307

3 41 2

1740

LEFT

RIG

HT

HVG

FOCU

S

EHT

EHT

EHT

FOCU

S

FOCU

S

RED

GRE

EN

BLU

E

TO 1

201

RED

CRT

PAN

EL

TO 1

201

GRE

EN C

RTPA

NEL

PAN

ELBL

UE

CRT

TO 1

201

1201

1201

1201

SSB

MSB

LSB

SID

EJA

CKPA

NEL

3 41 2

GN

DL-

HD

PHR-

HD

PH

123

3 41 2CO

NST

ANT

LEVE

LO

UT

1526

1003

1001

GN

D+8

VG

ND

GN

D

G2

G2

G2

1904

CON

NEC

TOR

DIA

GRA

M L

OCA

TIO

NS

SSB

1M02

1J02

1D50

1M36

1M60

1M21

1M01

1740

B8B

B1B

B4G

B3A

B5A

B5F

B5F

B8B

1517

1553

1504

1801

1802

1803

1809

1904

1910

E1 E1 E2 E3 E3 E3 E3 E4 E4

LSB

1516

1526

1519

1523

1720

1710

1702

1620

1721

M1

M1

M1

M1

M3

M3

M3

M3

M3

MSB

1003

1001

CO CO12

0712

1012

0212

1212

17

D D D D D

1214

1103

K K13

0513

07G G

CON

ST L

EVCR

TKE

YBD

SID

E AV

CON

PGCO

NPG

CON

PGCO

NPG

CON

PGCO

NPG

PGCO

N

CON

VYO

KED

EFL

YOKE

CON

VYO

KED

EFL

YOKE

CON

VYO

KED

EFL

YOKE

1204

1204

1204

BLU

E G

2G

REEN

G2

RED

G2

TO 1

204

RED

CRT

PAN

EL

TO 1

204

GRE

EN C

RT P

ANEL

TO 1

204

BLU

E CR

T PA

NEL

FIGURE 12 - WIRING INTERCONNECT DIAGRAMPage 8

NO PICTURE

IS THE POWER LEDBLINKING?

DOES THE POWER LED TURNON WHEN THE POWERBUTTON IS PRESSED?

NO

SELECT A CHANNEL ANDSELECT AN ACTIVE

CHANNEL USING THEREMOTE KEYPAD. TURN

THE VOLUME UP.

YES

IS AUDIOPRESENT? AYES

IS +5V DCPRESENT ON PIN 1

OF 1504 ON THELSB?

NO

IS 115V ACPRESENT ON 1505

ON THE LSB?

NO

CHECK THE AC POWERCORD NO

REPAIR OR REPLACETHE LSB

YES

IS +5V DCPRESENT ON PIN 4

OF 1523 ON THEMSB?

YES CHECK CONNECTIONSON MSBNO

DOES PIN 11 OF1523 ON THE MSB GO LOW

WHEN THE POWER BUTTONIS PRESSED?

YES

B YES

YES

DOES PIN 2 OF 1M01 ON THE SSBCHANGE WHEN THE POWER BUTTON

IS PRESSED?

NO

REPAIR OR REPLACESSB

YES

IS > 3 VOLTS PRESENT ON PIN 2OF 1M01 ON THE SSB? NO

REPAIR OR REPLACE SSB

NO

CHECK KEYBOARDAND REMOTE

RECEIVER

YES

REPLACE SSBNO

REPAIR OR REPLACESSB

TROUBLESHOOTING FLOW CHART PART 1 Page 9

IS APPROXIMATELY 200 VOLTS PRESENTON 1204 ON THE CRT BOARD?

IS RGB DRIVE PRESENT ON PINS 1, 2,AND 3 ON 1612 OF MSB.

YES

YES

A

REPAIR OR REPLACELSB

NO

REPAIR OR REPLACESSB

NO

REPAIR OR REPLACEMSB

B ERROR 1, 2, 3, 4, 5,6, 8, 9, 14, OR 11

REPAIR OR REPLACETHE SSB

YES

ERROR 12

NO

ERROR 13

NO

ERROR 62

NO

ERROR 61

ERROR 68

NO

NO

SSB

NO

IS HORIZONTAL DRIVEPRESENT ON PIN 9 OF 1910

ON LSB?

YES

MSB

NO

LSB

YES

IS VERTICAL DRIVE PRESENTON PIN 3 OF 1910 ON LSB?

MSB

LSB

NO

YES YESMSB

YES

IS +18 AND -18 VOLTSPRESENT ON CONNECTOR

1517 ON LSB?

YES

LSB

NO

SSB

YES

IS +12 VOLTS PRESENT ON PIN 9OF 1523 ON MSB WHEN THE

STANDBY LINE IS PULLED LOW?

YES

SSB

YES

IS +12 VOLTSPRESENT ON PIN 10 OF 1504

ON LSB WHEN THE STBY LINEIS PULLED LOW?

NOLSB

NO

MSB

YES

Page 10 TROUBLESHOOTING FLOW CHART PART 2

SSB MSB

CONSTANT LEVELOUT

LSB

RED CRT

CIRCUIT BOARD LOCATIONS Page 11

GREEN CRT BLUE CRT

Video Signal Flow

SSB Video Signal Flow (Figure 13)

The SSB tuner tunes both NTSC and ATSC channels. On the ATSC side, both terrestrial8VSB and unscrambled Cable QAM signals are tuned. The Tuner is powered by the+5VTUN voltage which is derived from the +12SW voltage.

If the selected channel is analog, IF is output on Pin 9 to 1A10, Saw Filter, and then to 7A00.IC 7A00 has the Video IF Demodulator. Composite video is output on Pin 120 and then sentto an internal AV switch via Pin 123. The AV switch selects between the composite videofrom the tuner or from one of the AV inputs. The selected composite video or YC is fed toone of two A/D converters. This signal is not broken into components as is done in a digitaltransmission. The signal is converted from analog to digital as is. If the signal is YC, it isoutput on DLINK1. Composite video is output on DLINK3. The signal is fed to IC 7J00, AVIP.If the signal is from a YC source, it is fed to a multiplexer and output on DV3. If the signal iscomposite video, it is fed to the internal Columbus circuit. The Columbus is a 3D digital combfilter. The 3D comb processes the whole frame instead of two lines at a time as in previouscomb filters. This results in a sharper picture without cross luminance or cross color.

The AVIP converts the video to a YUV format. It is then output on the DV3 data line to 7V00,Viper.

The YUV video is fed to a Switch and video processor in the Viper which rescales the videoto fit the screen. A memory controller interfaces with two SDRAM ICs 7V01 and 7V02 whichstores the video frames as they are being processed. In the case of LCD and Plasma sets,the video is converted to a progressive scan format. In the case where this SSB is used in aPTV, the video is converted to a 1080i format. Video is output from the Viper on three 8 bitdata lines to 7G40, D/A converter. The analog 1080i signal is then fed to the MSB in aRGB+HV format.

Component video signals, 480i, 480p, 720p, and 1080i is fed to 7B50, HDMI processor. ThisIC performs a A/D conversion before feeding the signal to the AVIP on the DV4 and DV5 datalines. The HDMI signal is also fed to this IC which separates the video part of the data beforefeeding it to the AVIP on DV4 and DV5.

If the customer selects an ATSC channel, the ATSC IF signal is output from the tuner on Pins14 and 15. The signal is fed to a 44 Mhz SAW filter 1T01 and IF amplifier 7T13. The signalis then fed to the ATSC decoder 7T22. The ATSC decoder captures the compressed datastream and outputs it on a 8 bit data line, DVIF. This signal is then fed to the Viper forprocessing. The Viper then rescales the video to fit the screen.

Page 12

DVI

F-8B

QAM

8VSB

DEC

ADC

7T22

ATSC

DEC

44M

SAW

91 90

11 28 914 15

14117

04TU

NER

7 8

7 8

4342

+12S

W3T

20 47

3T10 47

7510

7T10

5T11

SAW

45.7

5

1T01 1A

10

12

123

126

AV1_

CVBS

AV2-

Y_CV

BS

AV2-

C

FRO

NT-

Y_CV

BS

FRO

NT

C

107

108

120

4

7 8VI

FD

EMO

D

A

D

A

D

Y/CV

BS

C CVBS

AV3

AV2

7A11

AV7_

Y-CV

BSAV

1

5 15 8 9

SID

E JP

AV SW

Y PB PR Y1 PB1

PR1

AV2

AV1

SW HD

MI

REC

VID

EOO

UTP

UT

FORM

AT

AD

+5VT

UN

2 3

7 6

7T13

IF A

MP

1

+5VT

UN

I2C-

SDA-

TUN

ER

I2C-

SCL-

TUN

ER

SDA-

DM

A

SCL-

DM

A

81 68 96 79 66 94

7B50

HD

MI

HD

MI

7A00

PNX3

000

MPI

F

7J00

PNX2

015

AVIP

LVD

S_TX

DV4

DV5

VID

EOIN

PUT

PRO

CESS

OR

COLU

MBU

SCO

MB

FILT

ER

DV3

DLI

NK1

DLI

NK3

7L50

DD

R SD

RAM

VID

EOSW PR

OCE

SSO

R

MEM

ORY

CON

TRO

LLER

7V01

SD R

AM 1

7V02

SD R

AM 2

7V00

VIPE

RVI

DEO

SCAL

ERPN

X855

0

VID

EOO

UTP

UT

1M36

2 4

MUX

DV3

F28

F27

MP-

OU

T-VS

MP-

OU

T-H

S

AV-R

OU

T

AV-G

OU

T

AV-B

OU

T

1D50

DV-

OU

T-VS

DV-

OU

T-H

S

34 32 28

7G40

DAC

DV-

R

DV-

G

DV-

B

TO M

SB

B04G

B06

B05C

B05B

B07A

B07B

B07CB0

7C

B02A

B02B

B03A

B03C

B04B

FIGURE 13 - SSB VIDEO SIGNAL FLOW Page 13

Main Signal Board Video Signal Flow (Figure 14)

Red, Green, and Blue drive from the SSB is fed to Pins 30, 31, and 32 of 7600. The signal isfed to the RGB insertion circuits where the OSD is inserted. The signal is then fed to a WhitePoint circuit and then to the Output Amplifier. The White Point and Output Amplifier have theDrive controls and Cutoff controls. Input from the ABL line on Pin 43 makes adjustments inthe brightness levels to adjust for changes in beam current. The AKB pulses from the CRTsare fed to Pin 44 to the Cathode Calibration circuit. The Cathode Calibration circuit adjuststhe cutoff levels of the CRTs to maintain the correct gray-scale tracking. When the set is firstturned On, a calibration pulse is output on the RGB lines. The Cathode Calibration circuitmonitors this pulse on the AKB line to set the Black level and the maximum drive voltage forthe cathode. Once the Calibration has taken place, the Output Amplifier switches to the RGBdrive signal as the output.

Horizontal and Vertical Sync is fed to 7600 on Pins 23 and 24. IC 7600 processes the syncto provide the geometry for the picture. Horizontal drive is output to the sweep circuit on Pin8. Vertical drive is output on Pins 1 and 2. East West drive is output on Pin 3.

Sandcastle (SCO) is output on Pin 9. An internal current sense circuit is internally connectedto this Pin. Transistor 7902, located on the LSB, monitors the -200 volt supply. As long asthe -200-volt supply is present, the resistor divider network keeps 7902 turned Off. If the-200-volt is missing, the +15 volts supply will turn 7902 On. This will mute the Sandcastlesignal on Pin 9 of 7600 causing the IC to blank the RGB drive to the CRT’s. This is toprevent damage to the CRTs in the event that the -200 volt supply should fail.

Horizontal Feedback (HFB) from the collector of the Horizontal Output Transistor is fed intothe Phase Loop to phase correct the Horizontal drive.

IC 7600 is controlled by the GDE Microprocessor on the MSB via the I2C bus on Pins 10 and11. Geometry and Drive settings are stored in the Memory IC located on the MSB.IC 7600 is controlled by the Painter Microprocessor on the SSM via the I2C bus on Pins 10and 11. Geometry and Drive settings are stored in the Memory IC located on the SSM.

Red drive is output on Pin 40 and is buffered by 7702 before being fed to its respective CRTpanel. Green is output on Pin 41 and buffered by 7712 before being fed to its respectiveCRT panel. Blue drive is output on Pin 42 and is fed to a blue stretch circuit consisting oftransistors 7722, 7721, and 7720. IC 7661 is a comparator circuit which compares the com-bined output off the Red and Green with the Blue. If the Blue output is greater, the voltage onthe ABL line will increase causing the overall drive to decrease. This is to prevent the BlueCRT from being excessively driven.

Page 14

RGB/

YUV

MAT

RIX

Y U V

28 27 26 31 3230

SATU

RATI

ON

CON

TRO

LCO

LOR

DIF

FERE

NCE

MAT

RIX

RGB

INSE

RTIO

N

WH

ITE

POIN

TAN

DBR

IGH

TNES

SCO

NTR

OL

BLU

E

OU

TPU

TAM

PLIF

IER

STRE

TCH

BEAM

CURR

ENT

LIM

ITER

CATH

OD

E

STRE

TCH

CAL

CON

T

CLO

CKG

ENER

ATIO

NAN

D

1ST

LOO

P

PHAS

E-2

LOO

PH

ORI

ZON

TAL

OU

TPU

T

H/V

DIV

IDER

RAM

PG

ENER

ATO

RVE

RTIC

ALG

EOM

ETRY

E-W

GEO

MET

RYSO

FTST

ART

2324

VDHD

2021

913

145

81

2

3EW

O

VERT

VERT

HO

UT

FLAS

H

DPC

HFB

SCO

RED

CRT

GRE

EN C

RT

BLU

E CR

T

40 41 42 44 43BC

L(AB

L)

BLKI

N(A

KB)

35363738

REDTXTGRNTXTBLUTXT

TXTFBL

7600

HO

PTD

A933

1H

10 11

SCL

SDA

17

39

+8V

+8V

1 2 3 5 6

RED

GRE

EN

BLU

E HD VD

3630

10 3631

10 3632

10

2630

2631

2632

3624

100

3623

100

FRO

MSS

B1D

50

1612

R G B

3791

100

7702

3756

680

3793

100

+8V

+8V 77

12

3765

680

3790

100

3792

100

+8V

5601 37

8156

077

2177

22

3782

100

3797

1K

+8V

3789

100

772037

7268

0

6644

3784

560

3783

3.3K

5602

+8V

3786

680

7723

3792

180

3787

1.5K

3788

560

3667

47K3668

47K

3662

47K

3795

100

1 2 31702

1710

2 31 31720

1 2

7661

LM39

3 123

4

5 67

8

3751

1.5K 37

5256

0

3660

560

3661

18K

1620

1TO

LSB

1910

6643

3643

100

ABL

+12V

-HO

P

3931

1K

3926

10K 69

02

V-PU

LSE

3930

100

7902

3932

18K

3935

2.2M

3927

2.2M

-200

V

3926

220K

+15V

3933

1039

4010

0K69

068.

2V69

10

3934

4.7K

2907

2908

HO

T-C

2906

LSB

-+-+

FIGURE 14 - MSB VIDEO PROCESSING Page 15

R

G

B

CRT Panel (Figure 15)

The Red, Green, and Blue signals from the HOP panel are fed to their respective CRT panel.The signal is fed to the emitter of 7200 and then to 7202. The output of 7202 is fed to Pin 2of 7201 which drives the cathode of the CRT. AKB drive is output on Pin 7 and fed to theHOP panel.

The CRT circuit is powered by the +200-volt supply from the LSB. If there is a problem inthis circuit, the one resistor, 3217, will open. If this resistor opens, the CRT will have exces-sive drive causing it to go to maximum brightness. This will cause an over current shutdownon the LSB. In normal operation, the G1 voltage will measure approximately minus 20 volts.During blanking, this voltage will go to a minus 200 volts. The Filament voltage will measureapproximately 6 volts DC. If drive is removed to any of the CRT boards, the CRT will bedriven into saturation, causing an over current shutdown.

+8V

+8V

2211

2209

320122

320075

7200

6204

2201 32036.8K

3208100

3213680

32231.5K 3204

100

7202

3209330+8V

32252.2K

3226470

32272.2K

3220100

2207 2204

32241K

3215680

AKB

2210

2

1

3

4

8

7

610

513

12

2203

321222K

2219

+200V

32171

2217

2214+12V

321610

2213

2216

320647

321110K

5202

5203

6201

3218220

FOCUS

CRT

G2321010K

G1

32021.5K

62002218

FIL

22212200

5201

5200

7201TDA6120QCRT AMP

100UF

1n

100n 1n

100uF

1uF

1n 1n

47uF

2.2p

47n

100n1n

100p

6 7

8

4,5

10

FIGURE 15 - CRT PANEL

Page 16

Audio Signal Flow (Figure 16)

All of the audio processing including the amplifier is located on the SSB. The amplifier is aclass D with an output of 10 watts per channel.

If the customer has selected an analog channel, the 4.5 Mhz sound carrier is included withthe video IF output on Pin 9 of the Tuner. The IF is fed to 7A00, MPIF, and to the VideoDemodulator and Audio Demodulator. The baseband audio is fed to an A/D converter and toData Link 3. AV inputs are fed to a switch located in 7A00 and then to one of two A/D con-verters. The audio is then output on Data Link 1 or Data Link 2.

The audio is separated in the AVIP and fed to the Audio processor. The audio processorperforms the following functions:

Master Volume control and Balance5 band equalizerVirtual Dolby processingStereo processingHeadphone volume

Processed audio is output in a I2S format and fed to the Viper. The Viper performs an Audio

Delay based on preset levels in the software. The audio is then fed back to the AVIP wherethe selected signal is fed to a D/A converter and fed to the monitor audio output panel andaudio amplifier.

If the customer has selected an ATSC channel, the audio data is encoded in the data streamwhich is fed to the Viper from the ATSC decoder. The selected data streams are decoded inthe MPEG2 processor and fed to the Audio Delay circuit. The I2S audio is then fed to theAVIP where it is processed and fed to the main audio and headphone amplifiers. The mainaudio is output from the Viper on AB29 to the digital output jack labeled SPDIF.

When the customer selects the HDMI input, the HDMI receiver removes the digital audio fromthe data stream and outputs it to the Viper in a I2S format.

Audio Amplifier (Figure 17)

The audio amplifier consists of two class D 10 watt amplifiers. The amplifiers are powered bya +18 and -18 power supplies. Since the right amplifier is identical, only the left amplifier isshown.

Audio from the AVIP is fed to Pin 11 of 7D10 which is a comparator. Feedback from the out-put is filtered and wave-shaped by an RC network which generates a saw wave. The saw-tooth waveform is applied to Pin 10. When the audio input equals the voltage on the sawwave ramp, Pin 13 will go High. This feeds the drivers, 7D15, 7D16 and 7D17. They thendrive the outputs in 7D18. During muting, the Mute line goes High turning 7D14 On forcing7D17 into saturation, blocking the drive signal. Transistor pack 7D18 is the output for the Left

Page 17

DVI

F-8B

QAM

8VSB

DEC

ADC

7T22

ATSC

DEC

44M

SAW

91 90

11 28 914 15

14117

04TU

NER

7 8

7 8

4342

+12S

W3T

20 47

3T10 47

7510

7T10

5T11

SAW

45.7

5

1T01 1A

10

9

107

108

7 8VI

FD

EMO

D

+5VT

UN

2 3

7 6

7T13

IF A

MP

1

+5VT

UN

I2C-

SDA-

TUN

ER

I2C-

SCL-

TUN

ER

SDA-

DM

A

SCL-

DM

A

VID

EOSW PR

OCE

SSO

R

AUD

IOIF D

EM

AD

DAT

ALI

NK

3

AD

1DAT

ALI

NK

DAT

ALI

NK

2

AD

AUD

IOSW

PRO

CESS

OR

MPE

G2

PRO

CLI

NK

DAT

A

LIN

KD

ATA

PRO

C

LIN

KPR

OC

DAT

A

DIGITAL INPUT CROSSBAR

AD D

A

W3

V4

I2S-MAIN-ND

I2S-MAIN-D

W28

R29

SPD

IF-H

DM

I18

3AA

27

7B50

HD

MI

RECE

IVER

AUD

IOPR

OC

DEL

AY7V00

VIPE

RPN

X855

0AU

DIO

AB29

SPD

IF-O

UT1

7J00

PNX2

015

AVIP

AUD

IOPR

OC

ADAC

1

ADAC

2

AH1

AG1

LEFT

AU

DIO

RIG

HT

AUD

IO

TO A

UD

IO A

MP

7A00

PNX3

000

MPI

F

AV1

AV2

AV3

AUD

IO-IN

-4-R

AUD

IO-IN

-4-L

AUD

IO-IN

1-R

AUD

IO-IN

1-L

AUD

IO-IN

2-R

AUD

IO-IN

2-L

79 80 85 86 83 84

8 6

127

128

AUD

IO-IN

-5-R

AUD

IO-IN

-5-L

SID

E JP

1M36

A

DA

ADAC

8AA

1

DAD

AC7

AB1

LEFT

AU

DIO

TO M

ON

ITO

R AU

DIO

OU

T

RIG

HT

AUD

IO

B04A

TO D

IAG

RAM

B03

E

FIGURE 16 - AUDIO SIGNAL PROCESSINGPage 18

channel.

The base and emitter of Transistor 7D30 is connected to Resistor 3D60. When the currentreaches the point where the base is 0.6 volts less than the emitter, the Transistor will turn On.This overcurrent condition will cause the set to shut down.

Page 19

AUDIO OUTPUTS

+18V

-18V

3D4310

3D4915K

3D5447K 2D55

7D24

ADAC1AUDIO IN 3D50

10K

2D26

3D5615K

7D10-2

11

10

3

12

13

5D16-18V

2D47

3.9K

2D482D45

3D68100K

3D7110K

3D73560

MUTE

2D30

3D81680

3D641.2K

3D39-1

22K

7D14

7D17

3D39-322K

7D16-2

7D16-1

3D7622K

3D44330

7D18-2

7D18-1

7D30

3D600.1

3D343.3K

3D39-222K

3D351.2K

7D15

3D39-422K

3D7722K

CPROT

5D12

2D56

2D59

LEFT-SPEAKER

-18V

+18V

1

2

3

4

5,6

7,8-

+

FIGU

RE

17 - AU

DIO

AM

PLIFIE

RP

age 20

Fixed Level Output (Figure 18)

Since there is no Headphone output on the PTV, this circuit is used for the Fixed LevelOutput. This signal is developed in the AVIP. This signal is fed to Pins 3 and 5 of 7A04.During Power-On, the Reset-Audio line from the Viper goes High which turns Transistors7J01, 7J02, 7A08, 7A15, 7A16 and 7A14 muting the fixed level output.

Audio Shutdown (Figure 19)

The audio circuits are protected against DC voltage on the outputs and overcurrent in theamplifier.

If a DC voltage appears on the speaker lines, positive or negative, the op-amps of 7D10 willswitch On causing Pin 14 or 1 to go Low. This will cause Transistor 7D11-1 to turn Offcausing the Prot-Audio_Supply to go High. Transistor 7D11-2 will turn On, latching the circuit.the High on the Prot-Audio_Supply line will cause the processor to shut the set down. Whenthis circuit latches, it will stay latched until power is removed from the set.

The High on the CPROT line will turn Transistor 7D12-1 On, turning 7D12-2 Off. This willturn On 7D10 causing a shutdown latch as described above. A discussed before, theCPROT line will go High if there is an overcurrent in either the left or right audio amplifiers.

FIXED LEVEL OUTPUT PANEL

Page 21

1

23

4

56

1

2

3

4

5

6

7

8

8

4

3A5127K

2A79

3A30

15K

3A32

27K3A3115K

2A78

+5V

ADAC7

3A2733

3A2833

+5V

3A36

2A84

3A38

15K3A37 27K

27K3A52

15K

ADAC8

2A83

3A3433

3A3333

+5V2STBY

7A153A2410K

3A23100K

+5V2STBY

7A08

3A25680K

3A2647K

2A761uF

6A113L03470K

7J01

7J02-1

7J02-2

3L01100K

3L00100K

3L0210K

+12VSW +5V2STBY

6J07 6J08

7A163A291K

AUDIO-HDPH-L-AP

7A143A351K

AUDIO-HDPH-R-AP

RESET-AUDIOFROMVIPER

7A04-1

7A04-2

B03EB04A

-

+

-

+

FIGU

RE

18 - FIXE

D LE

VE

L OU

TPU

TP

age 22

-9.5V

-18.4V

1

2

3

4

56

1

23

4

5

6

1

23

4

5

6

1

2

3

4

5

6

-17.4V

0V

1.08V

3D14220K

3D17220K

LEFT SPEAKER

RIGHT SPEAKER

+18V

3D1047K

3D132.7K

7D10

8

914

12

3

7

61

3D8922K

3D125.6K

+3V3STBY

6D10

VP

VN

301947K

7D11-2

7D11-1

+3V3STBY

3D125.6K

3D2022K

3D2210K

2D63

PROT-AUDIOSUPPLY

CPROT

-18V3D232.2K

2D70

3D262.2K

7D12-2

7D12-1

-18V

3D4247K

3D251K

+18V

3D8247K

3D8347K

2D51

7D25-1

7D25-2

SOUND-ENABLE

3D8447K

3D8547K

7D25-2

+18

7D26-2 7D26-1

3D8747K

3D8833K

-18V

3D86100K

3D7547K

MUTE

+18

+18

3D1847K

3D214.7K

+18V

6D1127V

3D2410K

2D11

3D1547K

SOUND-ENABLE

-

+

-

+

FIGU

RE

19 - AU

DIO

SH

UTD

OW

NP

age 23

Horizontal Output circuit (Figure 20)

Horizontal drive from the HOP circuit located on the MSB is fed to 7807 on the Large Signalpanel. Transistor 7807 drives the Horizontal Output Transistor 7801, which drives the Yokesand the Horizontal Output Transformer 5801. Transformer 5801 produces a plus and minus13-volt supply for the Vertical Output circuit. Voltage from Pin 7 of 5801 is rectified by 6802to produce the +200-volt supply for the CRTs. Voltage from Pin 5 is rectified by 6801 to pro-duce the Filament voltage. This voltage is filtered by 2804 to provide approximately 6 voltsDC. This circuit is protected by fuse 1801 and resistor 3801. The negative Horizontal pulsefrom Pin 5 feeds the Blanking and Sweep failure detection circuit.

The output of 7807 drives IC 7803 and transistor 7802. This circuit drives the Dynamic Focusand Horizontal Geometry correction. The Horizontal component of the correction drives thereturn side of the Horizontal yokes via the DYN-FOCUS-HIGH and DYN-FOCUS-LOW lines.

Vertical Amplifier (Figure 21)

The Vertical drive from the HOP circuit on the MSB drives the Vertical Output IC 7811. ThisIC is located on the Large Signal panel. Drive is fed to Pin 7 and is output on Pin 5 to drivethe three Vertical Yokes. This IC is powered by the plus and minus 13-volt supplies from theHorizontal Output circuit. A Vertical pulse on Pin 6 is fed to the sweep failure detection cir-cuit. If there is a failure in the Horizontal or Vertical sweep, the High Voltage will be shutdown.

High Voltage and Dynamic Focus drive (Figure 22)

The High Voltage module is an integrated High Voltage supply with its own switching powersupply. When the set is turned On, approximately 10 to 11 volts from the Sweep Failuredetection circuit is fed to diode 6913 and to Pin 8 of the High Voltage module. A supply volt-age of 130 volts is also fed to Pin 10 of the module. The Module then outputs High voltage,Focus voltage, and G2 voltage for the three CRTs.

Output on Pin 4 is rectified by 6917 to produce a negative 200-volt source for the CRT G1voltage. The voltage is also rectified by 6919 to produce a 330-volt source for the DynamicFocus drive. The Dag line along with the output on Pin 2 is connected to 7903 to produce theABL voltage for the set. If an overcurrent condition should develop with the drive, the ABLvoltage will go Low, turning 7905 On, latching 7904, which will remove drive to Pin 8 of theHVG. This will cause the High voltage to shut Off. The DM-INPUT is mixed with the EastWest drive EWO and fed to transistor 7903 which drives 7901. Transistor 7901 drives theDynamic Focus and geometry correction drive which is fed to the return side of the HorizontalYokes via the DYN-FOCUS-LOW and DYN-FOCUS-HIGH connections.

Page 24

HO

UT

3834

47

284638

3547

0

3836

2.2K

6813

10V

780758

08

1 234

2836

3840

4.7K

3839

4.7K

+130

VS

+200

V

2802

22uF

6802

2803

3810

1

3838

1

2835

1500

uF28

21

3809

4.7

7801

HO

T

2817

6810

8 7 5 6 3 1

NEG

-HO

RIZ-

PULS

E28

05

6801

1806

2

2804

470u

F

3801

0.68

FILA

MEN

T

9 10 12 13 14 15 16

3803

1038

021K

6804

4.7V

+130

VS28

07

6803

2808

47uF

DEF

GN

D

HBL

ANK

+30V

_CLA

MP +1

3V

-13V

6805

2811

6806

2814

1805

1

1804

1

2812

1000

uF

2813

1000

uF

6807

6808

5801

HO

RIZ

YOKE

S

DYN

-FO

CUS-

HIG

H

DYN

-FO

CUS-

LOW

DM

INPU

T

VERT

_PAR

ABO

LA

2818

6809

3808

470

5804

3807

47

2815

10uF

5803

2816

+15V

3823

47k28

29

5807

3829

68K

6827

2847

2833

47uF

+30V

_CLA

MP

+15V

+15V

+15V

7803

7802 68

2510

V

3825

100

3824

1.5K

2832

3833

18K

3826

27K

3832

100K

2831

2834

3837

4.7K

470p

10n

1n

100n

560p47

0p

100n

8.2n

22n

2819

430n

470p

1n

470p

470p

470p

470p

3810

1

3816

1

+ -

+ -

FIGURE 20 - HORIZONTAL OUTPUT Page 25

AMPLIFIERPOWER

PROTECTIONTHERMAL

GENERATORFLYBACK

VD0A

VD0B

3812100

282438131.8K

2823

3811100

2822

1

2 3

4

5

6

7

-13V

+13V

68112825100uF

VPULSE

682618V

38152.7K

38652.2K

-13V

38141.8K

38191K

38211.5

38201

38181.5

2828

3804220

3805220

3806220

VERTICALYOKES

VBLANK

7811TDA8177

+

-4.7n

2.2n

4.7n

FIGU

RE

21 - VE

RTIC

AL O

UTP

UT

Page 26

DRI

VER

& CON

TRO

L

IFT &

SPLI

TTER

FOCU

S

HV

23

4

8

9

10

2917

470u

F

5902

130V

HV

6914 29

1669

13

2921

3917

22K

7905

7904 39

1668

029

15

HVG

-ON

6912

2914

2.2u

F

3919

120K

+15V

3920

120k

3923

470

6904

6903

3.9V

3924

27K

3937

4.7

2911

100u

F

6905

4.7V39

3610

ABL

EWO

3925

1K

DM

-INPU

T

2927

3921

470K

6919

3922

10K

2926

3915

2.2K

+15V

6908

7903

6909

3916

10

-13V

+130

VS

3914

1K

3910

5.6K 39

1156

K39

121.

5K

3913

8.2K

2913

2912

10uF

3905

27K

2903

4.7u

F

VERT

-PAR

ABLA

2910

3900

2.7K

3904

22K

2904

7901

+330

V

3903

330K 39

0969

01

DYN

-FO

CUS-

LOW

5901

2901

3901

100

3902

1.5K

DYN

FO

CUS

DYN

-FO

CUS-

HIG

H

3908

22

2919

2922

6917

2924

6916

2920

4.7u

F

2918

2.2u

F

-200

V

+375

V

5904

HVG

2902

2925

10.9

V

11.5

V

3.47

V

2.9V

-12.

7V

100n

100n10

0n

1n

100p

100p

100p

100n

2.2n

100n

4.7n

33n

10n

1900

3907

10019

04

FOCU

S

FOCU

S

6915

G2

G2

G2

1.5K

FIGURE 22 - HIGH VOLTAGE SECTION Page 27

Sweep Failure detection and Blanking (Figure 23)

The Shutdown circuit will shut the High voltage Off if the Horizontal or Vertical Sweep should fail. Itwill also shut the High voltage Off if the Power Fail line goes High or the +200-volt source shouldfail.

The Vertical pulse is fed to zener diodes 6824 and 6814, which keep capacitor 2837 charged.This pulse is rectified by 6815 to keep the base of 7808 at a negative voltage. This keeps thetransistor turned Off. In the same manner, the Negative Horizontal pulses keep the base of7810 at a negative voltage to keep it turned Off. The Protect line is normally Low, keeping7809 turned Off. The +200-volt source is fed through zener diodes 6812 and 6816, resistor3850, the base-emitter of 7906, the base emitter of 7812 to keep transistor 7813 turned On.This turns transistor 7814 On, which switches the On voltage to the High Voltage module.The conduction of 7812 keeps the voltage on the G1 line at approximately -18 volts, whichturns the CRTs On. If the Vertical Pulse should fail, transistor 7808 will turn On, which willturn 7906, 7812, 7813, and 7814 Off. This will turn the HVG module Off. In addition, when7812 turns Off, the G1 voltage will go to -200 volts, blanking the CRTs. The same sequencewill occur if Horizontal should fail. The Protect line should go High, or the +200-volt sourceshould fail.

Page 28 HIGH VOLTAGE GENERATOR

6824

10V

6824

10V 38

4210

K28

371u

F3841

470K

3843

2.2K

+15V

6815

7808

VPU

LSE

PRO

TECT

2838

3844

22K

2839

3845

22K

7809

NEG

-HO

RIZ-

PULS

E38

461

6822 28

40

3847

100k 28

4168

23

3848

27K

3861

10K

7810

+15V

+200

V

6812

68V

6816

68V

3850

47K 38

492.

2K

3851

1K 7906

6817

6818

7812

6819

18V

5809

G1

2842

1uF

3860

47K

3859

15K

3862

15K

3864

15K

3852

100 38

5310

K

7813

3854

10K

3855

330

2844

10uF

6820

10V

3856

4.7K38

5710

K

6821

3858

4.7K

+15V

7814

HVG

-ON

+15V

+15V

-200

V

2.69

V

-0.4

1V

0.23

V

-0.3

4V

-18.

4V

1.33

V

0.3V

15.5

5V

15.5

V

14.7

9V

0.78

V

1n1n

10n

10n

FIGURE 23 - CRT BIAS AND HV SHUTDOWN Page 29

1505

1

4

15066.3

250335101.5M

3501V

35064.7M

1530

15312516

35194.7M

1511

TUNER GND

5511

35134.7M

6500 MAINS_POS

25611000uF

STBY-STARTUP

FIGURE 24 - AC INPUT

Power Supplies

There are two power supplies which both are located on the LSB. The Standby supplyprovides a +5 and +12 volt supplies. There is also a switching circuit on MSB and additionalregulation circuits located on the SSB.

AC Input (Figure 24)

AC voltage is input to the set on connector 1505. Protection against excessive current is pro-vided by fuse 1506. AC filtering is performed by 5511. Bridge rectifier 6501 rectifies theMains voltage to provide raw DC to the Standby and Full supplies.

Standby Supply (Figure 25)

When power is applied to the set, Capacitor 2533 begins charging via startup Resistor 3527.When the voltage on Pin 4 of 7510 reaches approximately 19 volts, the IC begins switchingPin 1 of 7510. When Pin 1 goes Low, current flows through the windings of 5501 via Pins 8and 6. Energy is coupled to the secondary windings. Operating voltage for the Standby sup-ply after startup is supplied by windings connected to Pins 2 and 3.

The +5STDBY is the reference supply for the regulation circuit. The +5STDBY supply is fedto the input of Shunt Regulator 7516 which drives Opto-isolator 7511. If the 5-volt supplyincreases, 7511 will turn on harder, reducing the feedback voltage on Pin 6 of 7510. If the 5volt supply decreases, the voltage on Pin 6 will increase, causing the internal switch of 7510to stay on longer.

Page 30

OCP

OLP

OSC

CON

TREG

Vcc

RAW

DCST

BY

3515

1M 3516

6.8K

75123514

220K

7513

3550

135

511

6516

5V

3537

1K

65

4 1

3

7

GND_

HBGN

D_HB

GND_

HB

3549

330

6514

2543

3536

1.5K

6511

3527

100K

ACHO

T

253365

0935

3110

MAI

NS P

OS

3543

1M25

39

8 7 6 2 3

7510

STBY

REG

431 2

7511

7516

3539

1K

2542

3530

1K

3547

2.2K

3533

2.2K

3534

220

2548

10uF

9 11 10 12 15 16 14

5501

21.1V

2.1V

154V

7.3V

3.1V

2521

2519

5508

+5V2

6512

6505

2514

5515

2518

3524

4.7K

+12V

IC_S

UP

250965

10

0V

FIGURE 25 - STANDBY SUPPLY Page 31

Over voltage protection is accomplished by monitoring the voltage on Pin 5 of 7510. Voltagefrom Pin 2 of 5501 is rectified by Diode 6511 and is fed to Pin 5 via diode 6514. If this volt-age goes above a certain level, 7510 will turn Off.

If the DC voltage feeding 7510 decreases, the Feedback voltage on Pin 6 will increase. Toprevent the IC from being over driven, the voltage on Pin 6 is limited to 5 volts. In normaloperation, DC from the bridge rectifier is fed to the base of 7512, keeping it turned On. Thiskeeps Transistor 7513 turned Off. If the DC voltage drops to approximately 75 volts,Transistor 7512 will turn Off, Transistor 7513 will turn On, putting the anode of Zener 6516 toground, clamping the voltage on Pin 6 at 5 volts.

The Standby supply produces a +5V2 and +12 volt supplies.

Main Power supply (Figure 26)

When the set is in Standby, the Standby line is High which turns transistor 7556 On. This willturn the opto-isolator 7554 On hard causing the internal transistor to turn On completely. TheVcc line on Pin 2 of 7551 must reach 11 volts for the IC to switch On. With 7554 switched Onhard, the voltage on Pin 2 of 7551 will stay at approximately 3 volts DC. The +5V2 supplyfrom the standby supplies power to the opto-isolator.

When the set is turned On, the Standby line goes Low. The opto-isolator will be completelyturned Off at this point. Capacitor 2551 will charge to 11 volts switching IC7511 On. The ICwill output drive on Pin 11 which drives 7552. Voltage across current sensing resistors 3558and 3559 is fed back to the IC on Pin 9 to control the On time of 7552. When 7552 is On,energy is stored in transformer 5552. Polarity on the secondary windings reverse during theOff time of 7552. The voltage from Pin 11 of 5552 turns transistor 7553 On, keeping 7552turned Off until the field on 5552 completely collapses. When the voltage on capacitor 2551goes below 8.7 volts, IC 7551 switches Off. The startup cycle then repeats. After severalstartup cycles, sufficient energy is stored in 5552 to supply the operating voltage for 7551.Voltage from Pin 11 of 5552 is rectified by 6551 to supply the operating voltage for the IC.

The +130VS secondary supply is the reference voltage for the supply. This voltage is fed toa resistor network and is applied to Pin 3 of Shunt Regulator 7555, which drives the opto-iso-lator 7554. An increase in the +130VS supply will cause the Shunt Regulator to conductmore making the LED inside the opto-isolator brighter which increases the voltage on Pin 6 of7551. This will decrease the On time of 7552 having the effect of reducing the outputvoltage.

The control voltage on Pin 6 of 7551has a range of 1 to 1.5 volts. This signal controls the Ontime of transistor 7552 to regulate the secondary voltages.

The Main supply produces two 130 volt supplies, plus and minus 35 volt supplies, plus andminus 18 volt supplies for the audio, and a minus 22 volt supply. The +35 volt supply is also

Page 32

fed to resistor 3587 and Zener 6566 to produce the +15 volt supply

When the set is turned Off, the Standby line goes High turning 7756 On. Opto-isolator 7554then turns on hard causing the voltage on Pin 6 of 7551 to go above 1.5 volts. This will resultin 7551 shutting down. With the opto-isolator turned on hard, the Vcc voltage is kept atapproximately 3 volts preventing 7551 from starting up.

Troubleshooting

Check the RAW DC from the bridge rectifier.

When the set is turned on, Pin 2 of 7551 should be ramping up to 11 volts.

Check for short on the +130 volt lines.

Check for drive on Pin 11 of 7551.

Check opto-isolator operation.

Page 33

SUPP

LY

UVL

O

INT

SUPP

STAR

T

FREQ

PW CTL

OVE

RPO

WER

PRO

T

SHU

TD

OW

N0.

88V

100M

V

7551

TEA1

506

3

2 6 7

14 11 9

3554 3.3K

2553

3553

1.2K

5 4 7554

IC_S

UP

3551

27K

2551

100u

F6551

DEM

AG

CTL

VCC

3551

22

7552

7553 35

6147

K35

632.

2K65

533562

3.3K

5551

3556

56K

3557

1K

2555

100n

2556

180p

3558

0.1

3559

0.1

6552

2557

4.7n

11 10 7 6 5 4 2 1

3560

4.7

+5V2

3570

330

7555

1 2 1 2

3

3574

15K

2587

100n

+130

VS

3575

82K

3576

10K

3577

1.8K

12 13 14 15 16 17 18 19 20 21 22

5553

6555

5569

5555

2564

100u

F25

7810

0n

1554

3.15

2562

-VAU

DIO

5556

2565

6556

5570 55

5825

6710

0uF

2577

100n

1555

3.15

+VAU

DIO

+35V

2581

100n

3567

4.7K

2570

100u

F

5571

5560

2568

6557

5559

-22V

2580

100n

3567

4.7K

2573

100u

F

5573

5564

2574

5561

6558

5563

2571

6559

2576

100u

F

5572

5562

5565

3568

4.7K

2579

100n

-35V

2582

6560

2583

150u

F65

62

3569

150

2593

47uF

+130

VS55

67

2584

6561

2585

150u

F

+130

VHV

9506

3587

470

6566

15V

+15V

RAW

DC

7556

+5V2

3584

10K

6565

6564

PRO

TECT

PWRF

AIL

3581

3.3K

3582

6.8K35

8368

K

+130

VS

7557

1

2

3

2591

100n

3580

100

3578

4.7K3579

18K

6563

2588

100p

2589

100n

STAN

DBY

-+ -+

-+

FIGURE 26 - FULL POWER SUPPLYPage 34

+12VA

350022K

350122K

7502-1

351010K

7504

7505251910n

350810K

350910K

STBY

7502-2

5509

35071K

350410K

251147uF

+5V2

+5V

250747uF

+12V

251747uF

250347uF

7500

7501251847uF

+9V

250647uF

+8V

-22VR

5508

2514100uF

7506 -8V251210uF

6503

7357

1

23

2347100n

234810uF

5305+3V3-PAINTER

350622K

MSB Power Switching (Figure 27)

In the Standby mode, only the +5V2 supply is fed to the SSB. When the set is switched On,the STBY line from the SSB goes Low. This turns Transistor 7505 Off. Transistor 7504 willthen turn On switching 7502-1 On. This switches the +12 volt supply On. The +12 volt sup-ply switches 7502-2 On switching the +5V supply On. The +12 volt supply is also supplied toIC 7500 to produce the +8 volt supply and IC 7501 to produce the +9 volt supply. The 5 voltsupply is fed to IC 7357 to produce the +3V3 Painter supply.

The minus 22 volt supply is applied to 7506 to produce the -8 volt supply.

FIGURE 27 - MSB POWER SWITCHING

Page 35

3V20V30V2

2U51

100p

100p

2U52

2U49

100p

100p

2U50

GND-D FU12

FU20

100p

2U48

3U48100R100R

3U47

FU17

FU14

FU15

1u0

2U40

-12-16V-NF

+5V2-STBY

2U54

100n

100n

2U53

9

FU21FU22

1213

2345678

1J02

B13B-PH-K-S(LF)(SN)

1

1011

FU16

+12-16V-NF

+12VS

FU11FU10

+5V2-STBY

FU04

5U375U38

5U355U36

BACKLIGHT-CNTRL-OUTSTANDBY

LAMP-ON-OUT

SSB Power Input (Figure 28)

Power is applied to the SSB via connector 1J02. A 12 and 5 volt supplies are applied to thisconnector. The Standby line and and display lamp control are also located on this connector.

SSB DC-DC (Figure 29)

The +3V3, +2V5 and 1V2 supplies are generated by the DC to DC converter. The fullschematic can be found in the service manual on B01A. The converter is switched On by theEnable 1V2 and Enable 3V3 lines from the Standby processor, 7J00. Drive from 7U00 drivesTransistor 7U01 to produce the +3V3 supply. The +2V5 supply is derived from this supply viaTransistor 7U28. Drive from 7U00 to Transistor 7U03 produces the 1V2 supply.

This regulator has a short protection circuit which monitors the voltage across coils 5U00 and5U09. This make troubleshooting difficult since the impedance of a scope probe will load thecircuit causing the IC to shut down. This can be overcome by using a higher impedanceprobe.

FIGURE 28 - SSB POWER INPUT

Page 36

OSC

SHO

RTPR

OT

R S

RAM

PG

EN

RAM

PG

EN

R SRE

F

REF

7U00

NCP

5422

ADR2

1 2

3

45 6

78 9 10

11 12

13

14

1516

7U29

-2

3UA2

7U29

-1

3UA1

+12V

S

+12V

S

3U22

3U86

3U85

+12V

S

VCC

+2V5

D

+12V

S+1

2VS

+12S

W

1U01

+12V

S

+12V

S

7U01

-1

7U01

-2

3U24

3U25

5U00

2U24

3U82

3U83

3U08

3U08

7U03

-2

7U03

-1

5U093U

973U

10

3U96

2U22

2U26

3UA9

3UA8

3U11

6U22

7U07

6U21

6U23

3U05

2U15

7U05

-2

3U043U

03

2U37

3U19

ENAB

LE-3

V32U

13

3U02

7U05

-1

3U013U

00

ENAB

LE-1

V2

+3V3

7U28

7U27

3UA4

3UA5

+2V5

3UA3

+1V2

6U06

6U05

6U08

3U39

3UA6

3UA7

3U94

3U95

3U93

7U15

-23U

383U

37

7U15

-1

3U56

3U54

3U18

3U55

3U17

3U16

7U13

-2

+12V

S

7U13

-1

3U88

SUPP

LY-F

AULT

3U87

3U89

3U31

3U33

7U10

-17U

10-2

3U32

3U29

3U30

7U11

3U42

3U41

3U45

2U38

3U46

+12V

S

3U06

12V

UN

DER

VOLT

AGE

DET

ECT

250k

HZ

- ++-

+-

+-

7,8

2

1 5,6

4

3 7,8

2

15,6

4

3

2U41

FIGURE 29 - SSB DC - DC Page 37

Convergence processor (Figure 30)

The Convergence processing and drive circuits are all located on the MSB (Main SignalBoard). The Convergence data is stored in the EEPROM, 7000. The Microprocessor reads1,971 bytes of data from 7000 and writes it to the Convergence Processor, 7352. Horizontalsync is inverted by 7069, buffered by 7068, and fed to Pin 27 of 7052. Vertical sync is invert-ed by 7070, buffered by 7071, and fed to Pin 28 of 7052. The data is processed to producethe desired convergence correction waveforms which are output on six DACS. During theconvergence adjustment procedure, a 180-point alignment grid is output on Pins 16, 17, and18. This signal is mixed with the OSD to be displayed on the screen. There is only one con-vergence mode for this set, 1080i. The output of the DACS is fed to six op-amps beforebeing fed to the Power Amplifiers. When screen centering is being performed, it is necessaryto disable the convergence drive waveform. This is performed in the SAM (Service AlignmentMode).

Convergence Horizontal Output (Figure 31)

IC 7044 amplifies the Horizontal convergence waveforms. The correction waveforms are fedto the IC on Pins 6, 14, and 15. They are output to the Convergence Yokes on Pins 9, 11,and 18. The IC is powered by four supply inputs. A +35-volt supply is fed to Pin 5, a -35-voltsupply is fed to Pin 4, and a -22-volt supply is fed to Pin 8, 12, and 17. The supply fed to Pin10 is normally a +22-volt supply. During signal peak drives, the voltage on Pin 10 isincreased to +35 volts. Feedback sense voltage is developed across the 6.8 ohm resistorson the return side of each yoke. Transistor 7007 is part of a Soft Start circuit. When the set isturned On, Transistor 7007 turns On until capacitor 2043 is fully charged. While 7007 isbeing turned On, a negative voltage is placed on Pin 3 muting the output of the IC. A 100-ohm snubber resistor is across each of the yoke windings. This resistor will overheat if theunit is operated with the Convergence Yokes unplugged.

Convergence Vertical Output (Figure 32)

IC 7045 amplifies the Vertical convergence waveforms. The correction waveforms are fed tothe IC on Pins 6, 14, and 15. Output is on Pins 9, 11, and 18 to the Vertical Convergenceyokes. Feedback sense voltage is developed across the 6.8-ohm resistors on the return side ofeach yoke. A Snubber resistor is across each yoke. These resistors will overheat if the circuitis operated without the Convergence Yokes being plugged in. The IC is powered by four sup-plies: a +35 volt, -35 volt, VccPSW-V, and VCCNSW-V. The VccPSW-V supply is normally at+22 volts. The BV_OUT, GV_OUT, and RV_OUT lines are connected to a Vertical Power upcircuit which senses the drive to the Convergence Yokes. If the drive to the yokes reaches 10to 12 volts, the Vertical Power up circuit will switch the VccPSW-V supply to +35 volts. If theVertical Power up circuit senses a negative 10 to 12 volt drive to the Vertical Convergenceyokes, the VccNSW-V supply will switch from -22 volts to -35 volts. As with the Horizontal drivecircuit, 7005 mutes the output of 7045 during power up.

Page 38

D/A

D/A

D/A

D/A

D/A

D/A

D/A

D/A

D/A

65

66

63

64

60

61

48

49

45

46

51

52

16

17

18

RED

GREEN

BLUE

BLANK

RV

GV

BV

RH

GH

BH

GRN_ST

BLUE_ST

RED_ST

HORFIL

VERFIL

VIDEOPATTERNGEN

CONVERGPROC

RED_UP

GRN_UP

BLU_UP

BLANK_UP

7014

7015

7016

701710383940

TBU2

TBU1

TBU0

7354-2

7354-1

7353-2

7353-1

7353-2

7355-1

SDA_B

SCL_B

7365-2 7365-1

7364-2 7364-1

7367

7

8

9

7301RESET

13

27

28

SYNC_H

SYNC_V

7369-1 7369-2

7370-1 7370-2

HBLNK

VBLNK

7352STV2050A

+

-

+-

+

-

+-

+

-

+-

+

-

+-

+

-

+-

+

-

+-

FIGU

RE

30 - CO

NV

ER

GE

NC

E P

RO

CE

SS

ING

Page 39

7044STK392CONVERGENCEOUTPUT

+35V

2030 2032

BH

GH

RH

30903.3K 2056

30913.3K

206030923.3K

2057

3

6

7

14

13

15

16

9

11

18

5 10

VccPSW-H

7007MUTE

31674.7K

303422K

2043

2037 213231716.8

-35V

1 24 8 12 17

-22V

BLUE HORIZCONVYOKE

31496.8

31506.8

3166220

30933.3K

2105

31516.8

GREEN HORIZCONVYOKE

31526.8

30943.3K

2107

RED HORIZCONVYOKE

3162220

31536.8

31546.8

30953.3K

2109

100uF 100uF

150p

10uF

150p

150p

100uF 100n

150p

150p

150p

+35V

-

+

-

+

-

+

3161100

FIGU

RE

31 - CO

NV

ER

GE

NC

E H

OR

IZON

TAL O

UTP

UT

Page 40

7045STK392CONVERGENCEOUTPUT

+35V

2030 2008

BV

GV

RV

31473.3K

2026

30993.3K

206131483.3K

2096

3

6

7

14

13

15

16

9

11

18

5 10

VccPSW-V

7005MUTE

30694.7K

303322K

2042

2009 213031736.8

-35V

1 24 8 12 17

VccNSW-V

BLUE VERTCONVYOKE

31586.8

31576.8

3163220

30963.3K

2111

31566.8

GREEN VERTCONVYOKE

31556.8

21133.3K

2107

RED VERTCONVYOKE

3165220

31596.8

31606.8

30983.3K

2115

3164220

100uF 100uF

150p

150p

150p

150p

150p

150p10uF

100uF 100n

-

+

-

+

-

+

FIGU

RE

32 - VE

RTIC

AL C

ON

VE

RG

EN

CE

OU

TPU

TP

age 41

SSB System Control (Figure 33)

IC 7J00 (AVIP) has the Standby processor. This is the only processor that is powered upduring Standby. The POD-MODE from the AVIP Standby processor goes Low when the setis turned On, turning on Transistors 7U24 and 7U25 switching the +5 volt supply On. TheON-MODE also switches On pulling the Standby line Low. The Keyboard and Remote sen-sor are connected to the Standby processor. When the set is turned On, the +5, 8V6, 1V2,and 3.3 volt supplies are switched On. If any of these supplies fail to turn On, the Standbyprocessor will shut the set down. The display will indicate an error by the presence of a blink-ing LED.

At power On, the Viper IC, 7V00, is switched On. It also receives a reset from the AVIP. TheViper performs most of the control functions when the set is On. It communicates with thePainter processor located on the MSB via the GLINK-TXD and GLINK-RXD lines.

Page 42

SSB WITH COVER REMOVED

1

2

3

4

7,85,6

AK15

AJ15

ON

-MO

DE

POD

-MO

DE

7M01

3M00

+3V3

-STA

ND

BY

+5V2

-STB

Y 3M02

STAN

DBY

B05F

7M11

AK26

RESE

T-ST

BY

3M71

3M72

STAN

DBY

PRO

CESS

OR

7J00

AK12

VCC

1.2V

B4E

2AK

23KB

AK13

2

KEY

BOAR

D

1M01

E1 LED

PAN

ELKE

YBO

ARD

SEN

SED

ETEC

T-5V

AG17

+5V

SEN

SE8V

6SW

DET

ECT-

8V6

AK18

SEN

SE+1

2VSW

DET

ECT-

12V

AJ18

SEN

SE_1

V2D

ETEC

T-1V

2AF

16

SEN

SE+3

V3D

ETEC

T-3V

3AH

17

B01B

3U42

47K 3U

4447

K

7U24

3U39

100K

+5V2

-STB

Y

2U55

+5V2

-STB

Y+1

2SW

7U25

-17U

25-2

+5V

+3V3

-STA

ND

BY+5

V2-S

TBY

6M10

3.9V

3M72

680

7M06

+5V2

-STB

Y

RESE

T

1M21

1214

2 311

03

7V00

PNX8

550

E24

B26

AD4

AJ21

RESE

T

VIPE

R

B5A

B4C

ID50

8

9

GLINK-TXD

GLINK-RXD

FIGURE 33 - SSB SYSTEM CONTROL Page 43

SSB +3.3V MSB

SDA-B

SCL-B

SDA-C

SCL-C

1200

7000NVM

75

28

13

84

83

69

70

52

48

47

46

WC

+5V

56

7

8

1

BLANK-UP

RED-UP

GRN-UP

BLUE-UP

55

53SYNC-V

SYNC-H

7100ACSCONTROL

16

17

30

RESET72

CONVPROC

TO HOP

7201RESET RESET_ST

RESET_N72

GLINK_TXD

GLINK_RXD

FIGURE 34 - MSB SYSTEM CONTROLMSB System Control (Figure 34)

The Painter Processor, 7200, is located on the MSB. It provides the control functions for theMSB and LSB. Power is only applied to this IC after the set is turned On. IC 7201 providesreset for the IC. The I2C “B” bus communicates with the NVM, 7351and the Convergenceprocessor. The I2C “C” bus communicates with the HOP IC. The NVM stores all of theConvergence data, White Tone settings, and Geometry settings. Pins 48, 47, 46, and 52generate OSD when the GDE SAM mode is selected. Vertical sync is applied to Pin 55 andHorizontal sync is applied to Pin 52 to synchronize the OSD.

Page 44

Service Modes

Customer Service Mode (CSM)

The customer can view information about the setby entering the CSM. Enter the CSM by press-ing 1 2 3 6 5 4 on the remote control. Use thecursor up-down button to select the next menu.Exit the mode by pressing the Menu button. Thesoftware version shown here is not correct forthis set.

The service technician can use this informa-tion to obtain information about faults in theset by using the error codes.

This is useful for the call center representativeas it gives information about customer set-tings and defeats customer unfriendly modes.

The status of the TV, Movie, and Channelblocking can be viewed.

SAM (Service Alignment Mode)

A map of the SAM is shown in figure 35.

Service Alignment Mode (SAM)

The service alignment mode allows the service technician to check errors, clear errors,change options, read operation hours and perform alignments. The SAM procedure shouldnever be given to the customer as changes could be made which could make the set inop-erable. To enter SAM, press 0 6 2 5 9 6 Info on the remote control. A customer warningwill then appear on the screen. Press the Red button on the remote to continue. Theremote must be from a EBJ1.0, BP, BL, or EM1.1 chassis.

Press the cursor down or cursor up buttons on the remote to select the item in the menu.The top line indicates the menu or sub menu along with number of items in the menu.

Page 45

General and whitepoint alignments can be made while in the SAM.

In the personal options menu, the picture mute can show show or a blue screen with nosignal depending on the selection made here. The Virgin mode puts the set in a new out ofthe box condition.

Feature options can be set individually or by changing the option numbers. Changing theoptions will change the option numbers.

To change the option numbers, select option numbers in the menu, the cursor right. Select the Group number. Enter the Option number. After entering the last number, thenumbers will be set. If the numbers are changed without entering the last number, press theOK button on the remote after entering all of the changes. If the numbers are entered andthe cursor is shifted to the Group selection, the number will revert to the previous number set.A label on the chassis of each set list the correct Option Codes. If the option numbers havebeen changed or the SSB has been replaced, the option numbers should be changed tomatch the option code label.

Any changes in customer setting will cause the Option Code to change. For example, afterentering the Option Code on the label, the set will be in the Virgin (out of box) mode. Afterauto-programming the channels, the Option Code will change. The Option Code should onlybe entered if the SSB has been changed or if someone has entered the wrong code.

After making any changes in the SAM, cursor left to the main SAM menu and select Storeand press OK.

Reading the Error codes can assist in troubleshooting intermittent problems. Notice that

Page 46

Protection Errors - Error will be indicated by a blinking LEDSet will not turn OnError Description Defect Device Diagram ID Board1 I2C1 I2C1 blocked SSB2 I2C2 I2C2 blocked SSB3 I2C3 I2C3 blocked B05E/B05A SSB4 I2C4 I2C4 blocked SSB5 Viper control PNX8550 B01B/B05A SSB6 5V supply 5V supply B04E SSB7 8V6 supply 8.6 volt supply MSB/SSB8 1.2V DC/DC 1v2 supply SSB9 2.5V DC/DC 2v5 supply SSB11 3.3V DC/DC 3v3 supply B04E SSB12 12V supply 12v supply B04E MSB/SSB13 Audio Supply audio supply LSB14 Class D amplifiers Audio amplifier B08A SSB25 Supply fault DC/DC B01A SSB61 Vertical Sweep fail Vertical MSB/LSB62 HOP POR fail MSB65 GDE Communication I2C B04G SSB/MSB68 Horizontal Sweep fail Horizontal MSB/LSB

SSB ERROR CODES

errors 1 to 14 are protection errors which will place the set in the SDM (Service DefaultMode) when power is applied to the set or it is turned On. These errors can be read bycounting the blinks. A long blink indicates the decimal digit while the short blink indicates theunits.

The GDE SAMsub menuallows theServiceTechnician toset Geometryand White Tone(Gray Scale).This mode iscontrolled bythe Paintermicroprocessorlocated on theMSB module.These settingsare stored on aEEPROM locat-ed on the ASC

module. The GDE SAM displays the Software version of the GDE microprocessor and theGDE Errors.

The Convergence Processor selection will enable or disable Convergence drive.Convergence should be disabled when performing Centering or Geometry alignments.

Convergence

In the EBJ1.0, the Convergence section is a sub section of the SAM. Once this section isentered, the only way to exit is to turn the set Off.

As with recent Philips PTVs, the EBJ1.0 incorporates a Digital Convergence system using208 adjustment points. Since all signals are converted to 1080i before being fed to the MSB,this set only has one convergence mode. To make an accurate convergence and geometryalignment, a signal should be applied to the set. When a complete convergence alignmentis necessary, a convergence template must be used to ensure linear geometry.

The convergence templates for these sets are:

51MP6200D/37 16x9 ST418351PP9200D/37 16x9 ST418360PP9200D/37 16x9 ST4182

Page 47

Non Protection Errors - Error can be read in the SAM or CSM modes

Error Description Defect Device Diagram ID Board16 MPIF1 main supply if-io KN10241C SSB17 MPIF1 audio supply if-io KN10241C B03D SSB18 MPIF1 ref freq if-io KN10241C B03B SSB21 MPIF2 main supply if-io2 KN10241C SSB22 MPIF2 audio supply if-io2 KN10241C SSB26 Power Dip detected St by uP SSB29 AVIP1 AV input proc PNX3000 SSB31 AVIP2 AV input proc PNX3000 SSB34 Tuner1 Tuner B02B SSB36 OFDM digital if TDA10046 SSB37 Channel decoder Ch decoder NXT2003 B02A SSB43 Hi rate front end HDMI TDA8751 B07B SSB44 Main NVM NVM M24C32 B05E SSB66 GDE non critical error GDE MSB67 System Integrity Fail viper B04G SSB

0 6

2 5

9 6

INFO

CUST

OM

ERW

ARN

ING

RED

BUTT

ON

HAR

DW

ARE

INFO

OPE

RATI

ON

HO

URS

ERRO

RSD

EFEC

TIVE

MO

DU

LERE

SET

ERRO

R BU

FFER

ALIG

NM

ENTS

DEA

LER

OPT

ION

SO

PTIO

NS

GEN

ERAL

WH

ITEP

OIN

TTU

NER

AG

C

COLO

R TE

MPE

RATU

REW

HIT

E PO

INT

RED

WH

ITE

POIN

T G

REEN

WH

ITE

POIN

T BL

UE

RED

BL

OFF

SET

GRE

EN B

L O

FFSE

T

NO

RMAL

WAR

MCO

OL

PERS

ON

AL O

PTIO

NS

PICT

URE

MU

TEVI

RGIN

MO

DE

2 CS

KO

REA

PIP/

DS

DAT

AD

ISPL

AYVI

DEO

REP

ROSO

URC

E SE

LECT

ION

AUD

IO R

EPRO

MIS

CELL

ANEO

US

OPT

ION

S N

UM

BERS

DU

AL S

CREE

N

EPG

SCRE

ENSC

ANN

ING

BAC

KLIG

HT

DIM

MIN

G B

ACKL

IGH

T

PICT

URE

PRO

CESS

ING

COM

B FI

LTER

AMBI

ENT

LIG

HT

MO

P

NO

NE

2D C

OM

B3D

CO

MB

OFF

MO

NO

STER

EO

HD

MI1

HD

MI2

USB

VER

SIO

NIE

E139

4ET

HER

NET

SPD

IF IN

PUTS

NO

NE

WIT

H A

NAL

OG

AU

DIO

WIT

HO

UT

ANAL

OG

AU

DIO

NO

NE

USB

1.1

USB

2.0+

CARD

READ

ER

NO

NE

1 CO

NN

ECTO

R2

CON

NEC

TORS

SUBW

OO

FER

INTE

RNAL

ACO

UST

IC S

YSTE

MO

N/O

FF

TOP

ENTR

Y+EC

O M

E5 5

WEC

O M

E5 1

5W51

WM

AG51

PH

IL60

PH

IL

ALTE

RNAT

IVE

TUN

ERTU

NER

TYP

E

GRO

UP1

GRO

UP2

STO

RE

INIT

IALI

SE N

VMST

ORE

SW M

AIN

TEN

ANCE

SW E

VEN

TSH

W E

VEN

TS

DIS

PLAY

CLEA

RTE

ST R

EBO

T

DIS

PLAY

CLEA

R

RRT

NO

NE

HO

TEL

MO

DE

GD

E SA

MD

CSM

GD

E SA

MIN

PUT

HO

ST

ERR:

DIS

PLAY

MO

DE

SERV

BLA

NK

GEO

MET

RY

PICT

URE

WH

ITE

TON

E

CLAM

P PU

LSE

CON

V.PR

OC

SWID

: HD

PTV6

GD

E1.4

0

1080

i FU

LLO

N/O

FF

> > >

NO

RMAL

/HD

TV

ENAB

LE/D

ISAB

LE

WID

E BL

ANK

HD

R SH

IFT

HO

R_PA

RALL

ELEW

WID

THEW

PAR

AEW

TRA

PH

OR

BOW

VER

SLO

PEVE

R AM

PLS

CORR

VER

SHIF

TFA

ST B

LAN

K

8 11 8 45 47 15 7 33 25 31 31 1

PICT

URE

BRIG

HTN

ESS

PICT

URE

COLO

RSU

B-BR

IGH

T

31 40 31 31

NO

RMAL

CU

TOFF

RED

NO

RMAL

CU

TOFF

GRE

EN

NO

RMAL

DRI

VE R

EDN

ORM

AL D

RIVE

GRE

ENN

ORM

AL D

RIVE

BLU

ECO

OL

CUTO

FF R

EDCO

OL

CUTO

FF G

REEN

COO

L D

RIVE

RED

COO

L D

RIVE

GRE

ENCO

OL

DRI

VE B

LUE

WAR

M C

UTO

FF R

EDW

ARM

CU

TOFF

GRE

EN

WAR

M D

RIVE

RED

WAR

M D

RIVE

GRE

ENW

ARM

DRI

VE B

LUE

7 7 15 45 45 +0 +0 +0 +0 +0 +0 +0 +0 +0+0

GO

TO

CON

VERG

ENCE

MEN

U

FIGURE 35 - SERVICE ALIGNMENT MODE MENUPage 48

FROM MAIN

USE CURSOR KEYS TO HIGHLIGHTUSE MENU KEY TO SELECTUSE INO KEY TO RETURN

CONVERGENCE ADJUSTMENTSSENSOR TEST

MANUAL CONVERGENCE WO VIDEOMANUAL CONVERGENCE W VIDEO

RESTORE FACTORY

RESTORE DEFAULTS

GREENRED TO GREENBLUE TO GREENGREEN TO REDBLUE TO REDSP REDSP BLUEMP REDMP BLUESTORE

I+

CURSOR RIGHT MENU

INFO

CURSOR KEYS TO ADJUST

MENU TO CHANGESTEP SIZE

INFO TO RETURN

CURSOR KEYS TO NAVIGATE

MENU TO ADJUST

INFO TO RETURN

1

2 3

4

SENSORS NOT VERIFIEDAT LOCATIONS______

MENU TO TEST AGAININFO TO RETURN

MENU TO SAVE DATA

INFO TO RETURN

MENU TO SAVE DATA

INFO TO RETURN

INFO

INFO MEN

U

CURSOR RIGHT TO SELECTINFO TO RETURN

CURSOR RIGHT TO SELECTPOWER OFF TO EXIT CONVERGENCE

INTELLISENSENOT USED

MENU

FIGURE 36 - CONVERGENCE ALIGNMENT MENU

Convergence Alignment (Figure 36)

Use the Cursor Up-Down button to highlight the selection. Press the Cursor Right button tomake the selection. In the second menu, MANUAL CONVERGENCE WO VIDEO means thatthe screen behind the adjustment grid will be blank. This does not mean that Convergencecan be performed without a signal being applied to the set. MANUAL CONVERGENCE WVIDEO displays the applied video behind the adjustment grid. RESTORE FACTORY loadsthe values from the last saved convergence alignment. RESTORE DEFAULT loads valuesfrom the ROM on the GDE Microprocessor. RESTORE FACTORY or RESTORE DEFAULTwill overwrite all eight Convergence modes. If the SSM has been changed, there may not bedata in the NVM for RESTORE FACTORY. The RESTORE DEFAULT settings will then beloaded.

An internally generated grid will be displayed in the Convergence mode as shown in figure37. The area inside the dotted lines are the visible picture area. Horizontal lines A and Mare displayed on the top and bottom edge of the visible screen area. Lines 1 and 15 are alsodisplayed on the left and right edge of the visible screen area. Vertical line 0 is adjustable butnot visible.

Page 49

A B C D E F G H I J K L M N O P1

2

3

4

5

6

7

8

9

10

11

12

13

FIGURE 37 - CONVERGENCE ALIGNMENT PATTERN

Touch Up Convergence

When making minor Convergence corrections, move the Cursor to the location to be adjustedthen press the Menu button to adjust that location. When in the adjustment mode, press theMenu button a second time if it is desired to change the step size of the adjustment. Whenmaking minor Convergence corrections, you may adjust the following:

RED TO GREENBLUE TO GREENSP REDMP REDSP BLUEMP BLUE

Do not make changes to the Green Geometry without placing a Template over the screen.

Page 50

Green Geometry

The Green Geometry must be done first when performing a complete convergence alignment.A Screen Template is necessary to obtain the correct geometry. Failure to use the ScreenTemplate or mis-adjustment of the convergence will result in reduced life of the Convergenceamplifiers.

Place the Screen template on the TV screen. Select GREEN in the selection menu. TheCursor will appear in the center of the screen as shown in the picture.

When the SSM has been replaced, it would be advisable to load Default settings. Press the Menubutton to adjust, and then use the Cursor buttons to move the Green cross onto the Template.The adjustment of the cross has two step sizes, large and small. Press the Menu button to toggle

between the two. After a point has been adjusted, press the Index button to return to Navigate.When Default settings have been loaded, the left most line that is not visible should be adjustedfirst. Adjust the Vertical line 0 while observing line 1 to make line 1 parallel with the left edge of thescreen. The adjustment should only be made in small steps. Do not adjust any one point morethan 1/4 the distance of one grid in each pass. After the left most line is adjusted, start at the cen-ter left of the screen and work to the right, aligning the Horizontal lines. When adjusting theHorizontal lines, best results are obtained when working from left to right. After the Center line isadjusted, go to the next line down until all of the lines have been adjusted, then work from the cen-ter up to adjust the Horizontal lines. Using the same method, work from center out to adjust theVertical lines. At least three passes will be necessary to complete the alignment. Press the Indexbutton to return to the selection menu.

When the Green geometry is complete, Store the data. Remove the Template from thescreen. Select Red to Green in the selection menu. Using the same method that was usedto adjust the Green Grid to the Template, adjust the Red Grid onto the Green Grid. If the setis a later production, select SP RED to center the Red grid onto the Green grid. Exit thismode by pressing the Menu button. Then select the MP RED to adjust the Red onto theGreen using the 35-point adjustment. When this is complete, select the RED TO GREEN toperform the 208-point adjustment.

When the RED TO GREEN is complete, select the BLUE TO GREEN using the samealignment method as the RED TO GREEN.

Select STORE to save your the alignments after adjusting each color. Exiting the ConvergenceMode without saving will cause the alignments to be lost.

Repeat the adjustment for each of the remaining modes.

A full explanation of the Service modes are available in the service manual.

Page 51

Remove the service cover screws.

Disassembly and Service positions

Remove the side mountingblocks.

Remove circuit bracket screws

Loosen cable ties and slide the chassisinto the service position.

Page 52

CONVERGENCE YOKE CONNECTORS

RED GREEN BLUE

Page 53

Abbreviation list

Description

1080i 1080 visible lines, interlaced1080p 1080 visible lines, progressive scan480i 480 visible lines, interlaced480p 480 visible lines, progressive scanADC A/D Analogue to Digital ConverterAFC Automatic Frequency Control: control signal used to tune to the correct

frequencyAGC Automatic Gain Control: algorithm that controls the video input of the

feature boxAM Amplitude ModulationAV Audio VideoC-FRONT Chrominance front inputCBA Circuit Board Assembly (or PWB)ComPair Computer aided rePairCSM Customer Service ModeCVBS Composite Video Blanking and SynchronizationCVBS-EXT CVBS signal from external source (VCR, VCD, etc.)CVBS-INT CVBS signal from TunerCVBS-MON CVBS monitor signalCVBS-TER-OUT CVBS terrestrial outDAC Digital to Analogue ConverterDFU Directions For Use: owner's manualDNR Dynamic Noise ReductionDRAM Dynamic RAMDSP Digital Signal ProcessingDTS Digital Theatre SoundDVD Digital Video DiscEEPROM Electrically Erasable and Programmable Read Only MemoryEPLD Electronic Programmable DeviceEXT EXTernal (source), entering the set by cinches (jacks)FBL Fast Blanking: DC signal accompanying RGB signalsFLASH FLASH memoryFM Field Memory / Frequency ModulationFMR FM RadioFRC Frame Rate ConverterFRONT-C Front input chrominance (SVHS)FRONT-DETECT Front input detectionFRONT-Y_CVBS Front input luminance or CVBS (SVHS)H H_sync to the module HD High DefinitionHDMI High Definition Multimedia Interface HP HeadPhonePage 54

I2C Integrated IC busI2S Integrated IC Sound busIC Integrated CircuitIF Intermediate FrequencyInterlaced Scan mode where two fields are used to form one frame. Each field contains

half the number of the total amount of lines. The fields are written in 'pairs', causing line flicker.

IR Infra RedIRQ Interrupt ReQuestLast Status The settings last chosen by the customer and read and stored in RAM or in the

NVM. They are called at start-up of the set to configure it according the customers wishes.

LCD Liquid Crystal DisplayLED Light Emitting DiodeLINE-DRIVE Line drive signalLSB Large Signal BoardLVDS Low Voltage Differential Signalling, data transmission system for high speed

and low EMI communication.MPEG Motion Pictures Experts GroupMSB Main Signal BoardNVM Non Volatile Memory: IC containing TV related data (for example, options)OSD On Screen DisplayProgressive Scan Scan mode where all scan lines are displayed in one frame at the same

time, creating a double vertical resolution.RAM Random Access MemoryRC Remote Control transmitterRC5 Remote Control system 5, the signal from the remote control receiver RGB Red, Green, and Blue. The primary colour signals for TV. By mixing

levels of R, G, and B, all colors (Y/C) are reproduced.RGBHV Red, Green, Blue, Horizontal sync, and Vertical syncROM Read Only MemorySAM Service Alignment ModeSIF Sound Intermediate FrequencySC SandCastle: two-level pulse derived from sync signalsSCL CLock Signal on I2C busSDA DAta Signal on I2C busSDRAM Synchronous DRAMSIF Sound Intermediate FrequencySTBY STandBYSSB Small Signal BoardVGA Video Graphics ArrayXTAL Quartz crystalYPbPr Component video (Y= Luminance, Pb/Pr= Colour difference signals)Y/C Luminance (Y) and Chrominance (C) signalY-OUT Luminance-signal

Page 55

MM 062806 Rev091406