Cover Page 2011 – Premium 3D Plasma TV · 2011- Plasma FHD TV – (14. th . Generation)...

Applies to models:

Cover Page2011 – Premium 3D Plasma TV

Technical Guide and Troubleshooting Flowchart

2011- Plasma FHD TV – (14th Generation)

TC-PXXGT30TC-PXXVT30

Panasonic National TrainingPanasonic Service and Technology Company

TTG110901CP

Prepared byCesar Perdomo

Panasonic Service and Technology CompanyNational Training

Warning This service information is designed for experienced repair technicians only and is not designed for use by the general public. It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product. Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to service or repair the product or products dealt with in this service information by anyone else could result in serious injury or death.

Copyright ©

2009 by Panasonic Service and Technology CompanyAll rights reserved. Unauthorized copying and distribution is a violation of law.

"HDMI, the HDMI logo and High-Definition Multimedia Interface are trademarks or registered trademarks of HDMI Licensing LLC.“

Table Of Contents Content Page

2011 Series Line Up And Available Sizes 4 Features 5 2011 Premium 3D PDP Line up And Feature Comparison 6 New Technical Features 7 Charging the 3D Glasses 8 Connection (Mini Adapters) 9 Boards Layout 10 Connections (Mini Adapters Part Number) 11 Service port (M3 mini Jack) Specifications 12 2011 PDP Extension Cable list (GT30 series) 13 2011 PDP Extension Cable for A board (GT30 series) 14 2011 PDP Extension Cable for P board (GT30 series) 15 2011 PDP Extension Cable list (VT30 series / FHD) 16 SOS Detect Circuit 17 SOS Detect Circuit Schematic (TC-P50G30) 18 SOS Detect Circuit Schematic (TC-P55VT30) 19 Voltage Distribution 20 Power Supply Voltage Distribution (TC-P50GT30) 21 Power Supply Voltage Distribution (TC-P55VT30) 22 Signal Processing 23 GT30 Models Video Signal Flow 24 VT30 Models Video Signal Flow 25 Signal Processing Circuit (GT Series) 26 Signal Processing Circuit (VT Series) 27 Boards Layout 28 PCB Part List 29 SOS Detect Circuit (Shutdown) 30 Cautions 31 Power LED Error Code Definition (1 of 2) 32 Power LED Error Code Definition (2 of 2) 33 Boards Layout 34 SOS Blinking Codes/Troubleshooting Flowchart 35 Troubleshooting Solid Red LED Shutdown Failure 36 Behavior Comparison Between 2009/2010 and 2011 Models When Shorted Vsus, Vda, or P15V

37

Solid Red LED Error Code (Locked Mode) 38 Troubleshooting Solid Red LED Failure (Locked Mode) 39 Troubleshooting 1 Blink Failure 40 Troubleshooting 4 Blinks Failure 41 4 Blinks Error Code (Abnormality of Power Supply Output ) 42 Troubleshooting 4 Blinks Failure 43 Troubleshooting 6 Blinks Failure 44

Content Page

6 Blinks Error Code Circuit Explanation 45 6 Blinks Error Code (SC Energy Recovery Circuit Abnormality)

46

Troubleshooting 6 Blinks Failure 47 Troubleshooting 7 Blinks Failure 48 7 Blinks Error Detect Circuit 49 Quick Procedure To Check For Short or Low Resistance Condition of the Vsus, Vda, and P15V Lines

50

Troubleshooting 7 Blinks Failures (GT and VT Series) 51 Detailed Troubleshooting Procedure for Shorted Vda 52 VFO/VSCN_F and VF_5V Resistance Test (46”, 50”, and 55” FHD (S30 and ST30))

53

VFO/VSCN_F and VF_5V Resistance Test (50”~65” Slim Models (GT30 and VT30))

54

55 SU-SD boards Isolation Procedure 56 Troubleshooting 8 Blinks Failure 57 8 Blinks Error Code 58 8 Blinks Error Detect Circuit 59 8 Blinks Error Detect Circuit 60 Troubleshooting 8 Blinks Failure 61 Troubleshooting 9 Blinks Failure 62 9 Blinks Error Code 63 Troubleshooting 9 Blinks Failure 64 Troubleshooting 10 Blinks Failure 65 Troubleshooting 10 Blinks Failure 66 Troubleshooting 10 Blinks Failure 67 Troubleshooting 11 Blinks Failure 68 11 Blinks Error Detect Circuit (Fan SOS) 69 11 Blinks Error Code Explanation 70 Troubleshooting 11 Blinks Failure 71 12 Blinks Error Code 72 Troubleshooting 12 Blinks Failure 73 13 Blinks Error Code 74 14 Blinks Error Code 75 Troubleshooting No Power/Dead Unit 76 Troubleshooting No Power/Dead Unit (Power LED is Off) 77 78 Quick Procedure To Check For Short or Low Resistance Condition of the Vda Line

79

TV’s Behavior After Connectors Removal 80 Procedure to Check The Power Supply (Without Any Load) 81 Procedure to Check The Power Supply (Without Any Load) 82

2011 Series Line Up And Available Sizes

VT GT ST

One Sheet of Glass

Thin MetalBezel

S

HorizontalGradation

(Partial Back-cut)Piano Black

Full Gradation

(Full Back-cut)

65 5565 65 60 55 50 46 50 4250 65 60 55

50 46 42

60 4642

FULL HIGH DEFINITION (1080p)

X

HD LeaderFHD LeaderFHD CoreFHD DeluxeFHD Premium 3D

HIGH END

LOW END

HD (720p)

Series Series Series Series Series

Slide 4

Features

Slide 5

2011 Premium 3D PDP Line up And Feature Comparison

Slide 6

New Technical Features2 new technical features have been added to the 2011 models to assist the service technicians speed up the repair process.

The ability of the power LED to match the number of blinks of the first and last SOS blinking codes detected by the TV as listed on the “SELF Check” menu.

The delaying of the power LED blinking reaction by 10 seconds when the SC/SN board is isolated.

1st. occurrence

after shipment

3rd occurrence before last

2nd. occurrence

after shipment

Last

Before last

The power LED can be forced to duplicate the number of blinks of the first and last SOS conditions detected by the TV. This can be done while the power LED is blinking after a shutdown condition has occurred.

Procedure:

To duplicate the number of blinks of the last SOS detected.

While the power LED is blinking, press the “VOL+” on the remote control once to make the power LED blink the same number of times as the last blinking code detected by the TV.

To duplicated the number of blinks of the first SOS detected.

Press the “VOL-” once to make the power LED match the number of blinks of the first SOS blinking code detected.

This can help in determining if the symptom shown by the TV when it first failed (Most likely during operation), has changed to another blinking code when checked by the service technician.

Press VOL+ to see the last SOS detected

Press VOL- to see the first SOS detectedPTCT: 0a . 0a . 0a . 0a . 06

SOS History as shown on the “Self Check”

menu

New

Slide 7

Charging the 3D Glasses1. Turn off the TV.2. Set the 3D Eyewear power switch to “OFF”.3. Connect the 3D glasses to the TV as shown in the diagram below.4. Turn on the TV.5. The indicator LED on the glasses lights red, and charging starts.6. When the LED turns off, charging is complete. (Approximately 2 hours

required)7. Turn off the TV and remove the charging cable.

Note: Turn on the TV when charging the 3D glasses. The battery will not be charged when the television power is off.

Slide 8

Connection (Mini Adapters)

Slide 9

Boards LayoutTC-P55VT30

Slide 10

Connections (Mini Adapters Part Number)

Antenna adapter K1TYYYY00158VIDEO adapter K2KYYYY00136Component adapter K2KYYYY00137Audio adapter K2KYYYY00138Optical adapter K7CXGYC00002PC adapter K1HY20YY0007RS232C adapter K1HY03YY0013

Part # K1TYYYY00158

Part # K2KYYYY00136

Part # K2KYYYY00137

Part # K2KYYYY00138

Part # K7CXGYC00002

Part # K1HY20YY0007

Part # K1HY03YY0013

Note: Mini adapter manufactured for other companies may not be comparable with Panasonic TVsSlide 11

Service port (M3 mini Jack) Specifications The Service port (M3 mini Jack) on the following TVs can use as the RS232C terminal which is a standard computer SERIAL interface. Note: This operation system should be used by the certified professional dealer.

PC Control of the TVThe TV can be controlled by a personal computer when connected through an RS232C/ M3 mini jack conversion cable (not supplied). The computer will require software which allows sending and receiving of control data through its SERIAL port.

Slide 12

2011 PDP Extension Cable list (GT30 series)Model : TC-P50 / 55 / 60 / 65 GT30

Slide 13

2011 PDP Extension Cable for A board (GT30 series)

Slide 14

2011 PDP Extension Cable for P board (GT30 series)

Slide 15

2011 PDP Extension Cable list (VT30 series / FHD)

Slide 16

SOS Detect Circuit

Slide 17

PP

AA

IC9300Discharge

Control

A6

3.3V

A20

A32

5V

13

UHZ

SOS6

SOS7

UHZ

SOS8

18

11

9

17

10

15

16

18

1

29 30

P15V

P5V

P3.3V

P5V

C3C3C2C2

SCSCENERGY

RECOVERY

SC2

(6X) SOSDETECT

15V_F/5V_FSU/SD conn.

DETECT

SOS6

SOS7

35

VF_G

VF_G

SC50

15V

SSSS

ENERGYRECOVERY

(8X) SOSDETECT

15V

SOS8

SC20

SS11

P6 13

1Vsus

Vsus1

4

UHZ

P5V

PAN

EL M

AIN

ON

P15VVda VsusP2P11

C31

SC42

SC41

67

21

20

VscanDETECT

18

1

4

1

SS61

SS66

D16583D16253

SS331,2 20

Vsus pulseVsus pulse

PANEL_SOS(6-9)

IC5000ANALOG- ASIC

1 2

C2154,55

P3.3V

P3.3V

4

4

SOS4

12

SOS9

IC8000PEAKS-LDA3

SOS10(3)SOS10(5)

SSDD

SUSU

SD42

SU41

SU11

SD11

TC-P50GT308

10,11

A31

25 26 5 6

F15V

P5V/SUB5VP3V/SUB3.3V

C26 C3628 3

1

55

C_3.3V _DET

10,11

AH16

TUN

ER S

UB

ON

7

71

1

Vscn/Vda/

15V_F/5V_F

C1C1

FAN_SOS

A40

19 20

1

A8

C10 C20

38

3

1

2

339

40

53

SOS Detect Circuit Schematic (TC-P50G30)

Slide 18

PP

AA

IC9300Discharge

Control

A6

3.3V

A20

A32

5V

13

UHZ

SOS6

SOS7

UHZ

SOS8

18

11

9

17

10

15

16

18

1

29 30

P15V

P5V

P3.3V

P5V

C3C3C2C2

SCSCENERGY

RECOVERY

SC2

(6X) SOSDETECT

15V_F/5V_FSU/SD conn.

DETECT

SOS6

SOS7

35

VF_G

VF_G

SC50

15V

SSSS

ENERGYRECOVERY

(8X) SOSDETECT

15V

SOS8

SC20

SS11

P6 13

1Vsus

Vsus1

4

UHZ

P5V

PAN

EL M

AIN

ON

P15VVda VsusP2P11

C31

SC42

SC41

67

21

20

VscanDETECT

18

1

4

1

SS61

SS66

D16583D16253

SS331,2 20

Vsus pulseVsus pulse

PANEL_SOS(6-9)

IC5000ANALOG- ASIC

1 2

C2154,55

P3.3V

P3.3V

4

4

SOS4

12

SOS9

IC8000PEAKS-LDA3

SOS10(3)SOS10(5)

SSDD

SUSU

SD42

SU41

SU11

SD11

TC-P55VT30

8

10,11

A31

25 26 5 6

F15V

P5V/SUB5VP3V/SUB3.3V

C26 C3628 3

1

55

C_3.3V _DET

10,11

AH16

TUN

ER S

UB

ON

7

71

1

Vscn/Vda/

15V_F/5V_F

C1C1

FAN_SOS11

A40

19 20

1

A8

C10 C20

38

3

1

2

339

40

53

IC9500Discharge

Control7SOS9

SOS8

SOS Detect Circuit Schematic (TC-P55VT30)

Slide 19

Voltage Distribution

Slide 20

P15V(to A20)

+15V 13

A6

Picture signal3rd

EEPROMEEPROMIC8901

STB5V

1st

6

SW ResetSW ResetIC5606

TV_SUB_ON7

PANEL_MAIN_ON1

SUB9V

TC-P55GT30

SUB5V4 SD card

JK8650

Peaks LDA3Peaks LDA3

IC8000

1.1V

3.3V

1.1V

3.3V

IC9860

P1.1V LP1Discharge control

Sub-field Conv.

LP1Discharge control

Sub-field Conv.

IC9300

SUB3.3V / P3.3V

2.5V 2.5V IC9820

1.8V 1.8V IC8702

P2.5V

TUNERTUNERTU4801

SUB1.8V

SUB9VV / ASWV / ASW

IC3001

3.3V

1.2V

RESET

3.3/1.8V

9V

3.3V

1.2V

RESET

3.3/1.8V

9V

IC5000

STB3.3V

STB1.2VSTB_RST

VDDSD18V33V

STB5V

AMPAMPIC490015

SOUND15V /SOUND15VR+15V_S

1.2V

1.5V

1.2V

1.5V

IC8100SUB1.2V

SUB1.5V

F+15V

F15V / DCDCIN

PA5601（ｆuse)

2nd

10

11

DDR3DDR3IC8201

DDR3DDR3IC8200

SUB5V / P5V5V 5V IC8701 3.3V 3.3V

IC8706 HDMI3.3V/HDMI_SW3.3V

STB3.3V3.3V 3.3V

IC5251SUB_AI_3.3V

A1

1LEDRemote3

LEDDRV5V5V 5V

IC5900PA5900（ｆuse)

IR for 3DIR for 3DIC5901

JK8533

USB5V5V 5V

IC5350

USBUSB_SW USB_SW

IC8531

USB_SW USB_SW IC8532

JK8532USB

1

1

PA5440（ｆuse)

A3255SUB5V / P5V

To SC

A20

1

29

30

P15V

SUB3.3V / P3.3V2nd

3rd

F15V / DCDCIN

HDMI SWHDMI SWIC4700

Reg _fan Reg _fan

IC5607A81

10

To Fan47

Add to ST30

JK8531

USBUSB_SW USB_SW

IC86071

P15V

Buffer Buffer IC9400/01/02

Buffer Buffer IC9501

A40

19

20 To SS

A312

53

1

EEPROMEEPROMIC9304

EEPROMEEPROMIC8902

Flash ROMFlash ROMIC8900

Temp SenseTemp SenseIC3753

EthernetEthernetIC8601

iPod Authentication

iPod Authentication

IC3900

Power Supply Voltage Distribution (TC-P50GT30)

Slide 21

P15V(to A20)

+15V 13

A6

A31

2

53

1

Picturesignal

3rd

EEPROMEEPROMIC8901

STB5V

1st

6

SW ResetSW ResetIC5606TV_SUB_ON

7

PANEL_MAIN_ON1

< Power Supply Distribution > (TNPH0913**)

SUB9V

TC-P55VT30

SUB5V4 SD card

JK8650

Peaks LDA3Peaks LDA3

IC8000

1.1V

1.1V

1.1V

1.1V

IC9860

P1.1V_MLP1

Discharge controlSub-field Conv.


Sub-field Conv.

IC9300

SUB3.3V / P3.3V

2.5V 2.5V IC9820

1.8V 1.8V IC8702

P2.5V

EEPROMEEPROMIC9304

TUNERTUNERTU4801

SUB1.8V

SUB9VV / ASWV / ASW

IC3001

EEPROMEEPROMIC8902

Flash ROMFlash ROMIC8900

Temp SenseTemp SenseIC3753

EthernetEthernetIC8601

iPod Authentication

iPod Authentication

IC3900

3.3V

1.2V

RESET

3.3/1.8V

9V

3.3V

1.2V

RESET

3.3/1.8V

9V

IC5000

STB3.3V

STB1.2VSTB_RST

VDDSD18V33V

STB5V

AMPAMPIC4900

15

SOUND15V /SOUND15VR+15V_S

1.2V

1.5V

1.2V

1.5V

IC8100SUB1.2V

SUB1.5V

F+15V

F15V / DCDCIN

PA5601（ｆuse)

2nd

10

11

DDR3DDR3IC8201

DDR3DDR3IC8200

SUB5V / P5V5V 5V IC8701 3.3V 3.3V

IC8706 HDMI3.3V/HDMI_SW3.3V

STB3.3V3.3V 3.3V

IC5251SUB_AI_3.3V

A1

1LEDRemote3

LEDDRV5V5V 5V

IC5900PA5900（ｆuse)

IR for 3DIR for 3DIC5901

JK8533

USB5V5V 5V

IC5350

USBUSB_SW USB_SW

IC8531

USB_SW USB_SW IC8532

JK8532USB

1

1

PA5440（ｆuse)

A3255

SUB5V / P5V

To SC

A20

1

29

30

P15V

SUB3.3V / P3.3V

2nd

3rd

F15V / DCDCIN

HDMI SWHDMI SWIC4700

Reg _fan Reg _fan

IC5607A81

10

To Fan47

Add to GT30JK8531

USBUSB_SW USB_SW

IC86071

P15V

Buffer Buffer IC9400/01/02

Buffer Buffer IC9501

A40

19

20 To SS

AMPAMPIC4901 232C Driver232C Driver

IC3002


Sub-field Conv.


Sub-field Conv.

IC95003.3V 3.3V IC9830

P1.1V_S

Add to ST30

Power Supply Voltage Distribution (TC-P55VT30)

Slide 22

Signal Processing

Slide 23

AA

IC3001

VideoSwitch

IC3001

VideoSwitch

AV1

SD card

PC terminal

Monitor out

Compo nent1,2

Antenna terminal

TU4801TUNER

TU4801TUNER

LVDS

IC8000(Peaks LDA3

/sLD2)

ResizeIP conv.

IC8000(Peaks LDA3

/sLD2)

ResizeIP conv.

OSD

Analog

Serial data

HDMI1/2

IC9300Sub-fieldConv.Dischargecontrol

Test-pattern

IC9300Sub-fieldConv.Dischargecontrol

Test-patternRGB data timing

Scan control

Sustain controlLAN

IC5901IR for 3D eyewear


HDMI3/4 IC4700

HDMI_SWIC4700

HDMI_SW

USB1/2/3

GT30 Models Video Signal Flow

Slide 24

AA

IC3001

VideoSwitch

IC3001

VideoSwitch

AV1

SD card

PC terminal

Monitor out

Compo nent1,2

Antenna terminal

TU4801TUNER

TU4801TUNER

LVDS

Analog

Serial data

HDMI1/2

IC9300Sub-field Conv.DischargecontrolTest-pattern

IC9300Sub-field Conv.DischargecontrolTest-pattern RGB data timing

Scan control

Sustain controlLAN



HDMI3/4 IC4700

HDMI_SWIC4700

HDMI_SW

USB1/2/3



RGB data timing

IC8000(Peaks LDA3

/sLD2)

ResizeIP conv.

IC8000(Peaks LDA3

/sLD2)

ResizeIP conv.

OSD

VT30 Models Video Signal Flow

Slide 25

Signal Processing Circuit (GT Series)

Slide 26

Signal Processing Circuit (VT Series)

Slide 27


Slide 28

PCB Part List

Slide 29

SOS Detect Circuit (Shutdown) When an abnormality occurs in the unit, the “SOS Detect” circuit is triggered and the TV shuts down. The power LED on the front panel will flash a pattern indicating the circuit that has failed.

Slide 30

If the power LED continues to blink even after the TV is unplugged, press and hold the power switch on the TV for a few seconds until the LED turns off.

Some steps require removal of connectors and sometimes PC boards removal. Do not allow the TV to run for more than 30 seconds while connectors or boards are disconnected.

NOTE: When taking voltage reading, place your meter’s probe on the test point or pin indicated before connecting the TV to the AC line. The voltage you intent to measure may only appear for a brief moment.

Warning: The Vsus line has large capacitors that hold the charge for some time even after the TV has been turned off and unplugged. When disconnecting P2/SC2 or P11/SS1, bleed the remaining charge of the Vsus before reconnecting the cable.

Use a 500 ohms/ 5W (At least) resistor to discharge the Vsus line before reconnecting P2/SC2 or P11/SS11.

Cautions

Slide 31

Power LED Error Code Definition (1 of 2)LIST OF BOARDS POSSIBLY CASUSING THE FAILURE POWER LED

ERROR CODE

CIRCUIT MONITORED CONDITIONS TRIGGERING THE SHUTDOWN MOST

COMMON 2ND OCCASIONALLY RARELY

NO BLINLK SOLID RED LSI Error

Shorted Vsus Shorted Vda Shorted P15V

SC - SS P A Panel

1 BLINLK Panel Information SOS PD5 Start-up SOS

Communication problem between the System CPU (IC8001) and the Panel CPU (IC9003) A ¤ ¤ ¤

4 BLINKS Power Supply output voltages

Regulation issues with any of the voltages output from the power supply. Wrong diagnostic by the A board

P A ¤ ¤

6 BLINKS SC Energy Recovery Circuit

An increase or reduction of the Energy Recovery Circuit output (MID). Open connection of the P15V line between the P and A board. Open connection between any of the ribbon cables on the C boards and the A board. Open connection between the ribbon cable/cables interconnecting the C boards. Wrong diagnostic by the A board.

SC A ¤ C

7 BLINKS Scan Drive Circuit and

Connection between the SC board and the SM(SU/SD)

board.

Missing Vsus. Abnormality of the scan circuit output, the 15V_F, the scn_pro, and Vscn circuit. Loose or open Connection between the SC board and the SM(SU/SD) board (SC41, SC42, SC46). Open or loose connection between connectors SC2/P2 Wrong diagnostic by the A board Defective Panel

SC SU-SD/SS Panel A

8 BLINKS Sustain Drive Circuit and

Connection between the SS board and the Panel.

Abnormality of the Sustain drive circuit. Open or loose connection between the SS board and FPCs from the panel (SS61, SS64, SS21, SS24, and SS58). Open or loose connection between connectors C10/C20 Open or loose connection between A20 and SC20. Wrong diagnostic by the A board

SS Panel A C2

Note: When connector SC20/A20 is disconnected on the 2011 models, the TV shuts down with 8 blinks. When this is done on the 2009 and 2010 models, the TV shuts down with 6 blinks.

Slide 32

Power LED Error Code Definition (2 of 2)

LIST OF BOARDS POSSIBLY CASUSING THE FAILURE POWER LED ERROR CODE

CIRCUIT MONITORED CONDITIONS TRIGGERING THE SHUTDOWN MOST

COMMON 2ND OCASSIONALLY RAREALLY

9 BLINKS DCC Discharge Control Circuit

Failure of PD4 IC9300 (Discharge control) A

10 BLINKS SUB5V – SUB3.3 – F15V Tuner Power Down

Abnormalities of the F+15V and derivate Sub-voltages. • Reasons: • The P board is not generating the F+15V • SUB Voltages are affected by the K board or by

metal object present in the SD card slot.. Wrong diagnostic by the A board.

P A

12 BLINKS AUDIO AMP Abnormalities of the Audio AMP Pinched speaker wire. Wrong diagnostic by the A board.

A ¤ ¤ ¤

13 BLINKS Communication error

between Stby section and Main processor within the

Peaks SLD/LDA IC

Abnormal operation of the Peaks SLD/LDA IC Wrong diagnostic by the A board. A

14 BLINKS This code is triggered if there are abnormalities during data

exchange with the standby CPU ROM.

No F15V connected to the A board at plug-in (Open connection of both pins 10 & 11 between P6 and A6) Shorted F15V developed after the TV is up and running. Holding the power switch for over 5 seconds after the unit has gone into shut down and it’s in lock mode with the power LED solid red (Note: the LED stays on if the power button is momentarily pressed).

A- P

Slide 33


Slide 34

SOS Blinking Codes/Troubleshooting Flowchart

Slide 35

Troubleshooting Solid Red LED Shutdown Failure

Slide 36

Behavior Comparison Between 2009/2010 and 2011 Models When Shorted Vsus, Vda, or P15V

Behavior Comparison Between 2009/2010 and 2011 Models When Shorted Vsus, Vda, or P15V

Year 2009/2010 2011

Series All Models X – S – ST GT -

VT

Shorted

Vsus

4 -7 -10 Blinks

Locked Solid Red LED

7 Blinks

Vda

P15

Locked Solid Red LED

(14 Blinks, If TV is Turned On After the 2nd Relay Click)

Dead (LED is Off)

NOTE: Unlike the 2011 lower-end models, the result of a shorted Vsus, Vda, or P15 is not a Solid-Red-LED for GT and VT modes. This condition will only occur when the F15V is missing while the TV is on.

Slide 37

Solid Red LED Error Code (Locked Mode)

These conditions can cause the TV to shutdown while the power LED stays on (Solid red)

New

1. Missing F15V while the TV is on

Open connection between pins 10 and 11 of connectors P6 and A6.

2. Wrong diagnostic by the A board

Cautions: Disconnect the AC Power prior to making any disconnection or connection.


When taking voltage reading, place the voltmeter probe at the test point, component, or connector’s pin indicated before connecting the TV to the AC line. This will ensure voltage reading accuracy before the TV shuts down. (Since the TV is shutting down, expect the voltage to only come up a couple of seconds.)

NOTE: When taking voltage reading, place your meter’s probe on the test point or pin indicated before connecting the TV to the AC line. The voltage you intent to measure may only appear for a brief moment.

NOTE: Unlike the 2011 lower-end models, the result of a shorted Vsus, Vda, or P15 is not a Solid-Red-LED for GT and VT modes.

Slide 38

Troubleshooting Solid Red LED Failure (Locked Mode)

BlinkCode

List of boards likely to cause this symptom.

Main Suspect 2nd 3rd 4th 5th 6th 7th

Solid Red A P SC - SS

Yes

Check connections between connector P6 on the P board and A6 on the A board. If the problem persists, unplug the TV and disconnect SC20, SS33, and C10/C20. Reconnect the TV and turn the power on. Then, after the power LED turns on, press the power switch again to turn the TV off.

No Did the TV turn

off?

Start Here

Unplug the TV and reconnect it. Turn the power on and measure the voltage on pin 10 of connector P6.

Replace the P board

Power LED stays on

Is there 15V present?

Replace the A board.

Unplug the TV and reconnect SC20 and C10/C20 only (See

Note1 before reconnecting C10/C20). Turn the power on.

Then, after the power LED turns on, press the power switch again

to turn the TV off.

YesNoDid the TV turn off?

Replace the SC board

YesNo

Replace the SS board

To confirm that the TV is on Locked Mode, 1st, press the power switch to turn on the TV, then when the LED turns on, press the power switch to turn the TV off. If the LED stays on, the TV is on Locked Mode but if the LED goes off, then the symptom is different (Like no video or black screen).

New

Note 1: Remove connector P35 from the P board before

reconnecting C10/C20. Then reinstall P35 after C10/C20 is

reconnected.

Slide 39

Troubleshooting 1 Blink Failure

If the TV shuts down and the power LED blinks 1 time, replace the A

(PD4 Startup SOS/Panel Information SOS)

Start Here

Slide 40

Troubleshooting 4 Blinks Failure

Slide 41

4 Blinks Error Code (Abnormality of Power Supply Output )

1. Regulation issues with any of the voltages from the power supply.

If P15V goes over a preset level.

If F15V goes over a preset level.

If Vsus goes over a preset level..

If Vda goes above a preset level.


These conditions can cause the TV to shutdown and the power LED to blink 4 times

The power supply outputs STB5V, F+15V, Vsus, Vda, and P15V. These voltages are necessary to drive the different circuits in the TV.

In order to provide protection for the TV, these voltages are monitored. An increase on any of these voltages is detected and I651 outputs a shutdown voltage (SOS4_PS) to the System CPU to disable the Unit.

A 4 blinks condition is normally caused by the P board or the A board.

IC8000-2

PeaksLDA3

StandbyuCOM

SystemuCOM

P_SOS4A6

4 AJ16

4 blinks

P

P6

4

A

I651Error Det.

VsusVda

P15V

F15V

Slide 42

Troubleshooting 4 Blinks FailureBlinkCode



4 Blinks P A




Yes

Place the positive lead of a voltmeter at pin 4 of connector P6 while the black lead is connected to ground (Chassis ground). Plug in the TV and turn it on

NoDoes the voltage go up briefly to approx. 3.3V?

Start Here

Replace the A board

Replace the P board

Slide 43


Slide 44

6 Blinks Error Code Circuit Explanation

6 Blinks SOS

Energy Recovery/Vscan

The energy recovery circuit and Vscan are monitored in the SC board. Failure of any these 2 circuits triggers the SOS6 line causing the unit to shut down and the power LED to blink 6 times.Under normal operation, the output voltage (MID) of the “Energy Recovery” circuit ranges between 68V and 138V. If the voltage drops below 67V or increases above 139V, the error detect circuit (IC16581) is triggered. This causes a high to be output to pin 15 of connector SC20.Pin 15 of SC20 (SOS6-SC1) also goes high, if the Vscan generating circuit fails.

The voltage from SC20 is connected to the Peaks – LDA3 (IC8000) on the A board via the DC level shifter section of the ASIC (Application Specific) IC (IC5000)If this voltage goes high, the TV shuts down and the power LED blinks 6 times.

This condition is normally caused by a defective SC, A, or P board. (SC>A>P).6 blinks can also be caused by open connection between the C boards and open connection between any of the C board and the A board.

Slide 45

6 Blinks Error Code (SC Energy Recovery Circuit Abnormality)

1. An increase or reduction of the Energy Recovery Circuit output (MID).


These 2 conditions can cause the TV to shutdown and the power LED to blink 6 times

Note: Disconnecting SC20/A20 on the 2011 models causes the TV to shut down with 8 blinks instead of 6 blinks like it was the case of the 2009 and 2010 models.

New

Slide 46




6 Blinks SC A P




Yes

Check connections between the A board and the C and SC boards. Make sure that all connectors are properly seated. Unplug the TV and remove connectors SC20 from the SC board. Connect the TV and turn it on.

No Did the number of blinks

changed?

Start Here

Replace the A board


Unplug the TV and get ready to measure the voltage at pin 13 of connector P6. Plug in the TV and turn it on.

No YesReplace the P board

Still 6 Blinks 8 Blinks

Is there 15V

present?

Slide 47


Slide 48




Preparation:Disconnect AC Power prior to making any disconnection or connection. Wait at least 2 minutes before the removal of any connector.Remove the front cabinet and expose the panel to a bright light for a thorough visual inspection. Check for cracks and blown pixels or any other abnormalities.Check for burnt panel driver ICs on the SU and SD boards.If the panel is defective, the SU, SD, and/or the SC board may also be defective.



7 Blinks Error Detect Circuit1. Missing or shorted Vsus.

2. Shorted Vda

3. Abnormality of the scan circuit output, the 15V_F, the scn_pro, and Vscn circuit.

4. Defective Panel.

5. Loose or open Connection between the SC board and the SU/SD boards.


These 6 conditions can cause the TV to shut down and the power LED to blink 7 times

The SOS7 circuit monitors the panel, the scan circuit output, the 15V_F, the scan_pro, Vscan, and the physical connection between the SC board and the SU and SD boards (CHA).

If any abnormality occurs on any of these lines or Vsus is missing, the TV shuts down and the power LED blinks 7 times. If any of the connectors between the SC and the SU or SD board is open, the TV also shuts down and the power LED blinks 7 times.

BlinkCode



7 Blinks SC SU - SD SS P A Panel

Slide 49

Quick Procedure To Check For Short or Low Resistance Condition of the Vsus, Vda, and P15V Lines

1. Make sure the TV is disconnected.

2. Remove any residual charge from the Vsus and Vda lines by momentarily grounding them through a 500 ohms resistor (At least 5Watts).

3. Measure the resistance between chassis ground and the pins indicated on the table below. A dead short or a reading lower than 1K indicates a shorted or partially shorted line.

Note: Vsus is generated by the Power supply and is only used by the SS and SC boards

Vda is generated by the Power supply and is only used by the Panel (Panel Drive ICs)

P15V is generated by the Power supply and is used by the A, SS, and SC boards

Test points for the Vsus, Vda, and P15V can be easily found on the P board. To check for short circuit or low resistance on these lines, follow this procedure:

Preparation

Voltage Test Points

Connector Pin Number Voltage

P11 1 Vsus

P11 4 P15V

P35 1 Vda

Slide 50

Troubleshooting 7 Blinks Failures (GT and VT Series)Note: Perform firmware upgrade after replacing the SC board or the SS board

Follow the procedure on the previous slide to check the Vsus, and Vda for short circuit or low resistance reading.

Is there a short circuit of the

Vsus or Vda,?

YesNo

Start Here

Shorted Vda

Shorted Vsus

Continue on next slide (A)

Continue on next slide (B)

Unplug connectors P2 and P11, on the P board. Measure the resistance between pin 1 of connector P2 and ground (Chassis)

Measure the resistance between pin1 of connector SC2 on the SC board

and ground (Chassis).

YesNo Is there a short

circuit?

Replace the P board


circuit?

Measure the resistance between pin1 of connector SS11 on the

SS board and ground (Chassis).


circuit?


Replace the SS and the SC boards

Replace the SS

Unplug the TV and disconnect SC20 on the SC board. Turn

the power on

How many times is the power LED blinking?

ReplaceThe A board7 Blinks

8 Blinks

Slide 51

Detailed Troubleshooting Procedure for Shorted Vda

From the previous slide (B)

YesNo Replace the P board

Is there a short

circuit ?

Reconnect the ribbon cable between the C2 and C3 boards and unplug the ribbon cable between the C1 and C2 boards. Measure the resistance between pin 1 of connector P35 on the P board and ground (Chassis)


circuit?

Yes NoIs there a short

circuit?

The problem could be the C2 board or the panel. Proceed to isolate the panel from the C2

board to determine which is bad.



Reconnect P35 and unplug the ribbon cable between the C2 and C3 boards. Measure the resistance between pin 1 of connector P35 on the P board and ground (Chassis)



Unplug the TV and remove connector P35. Check the resistance between pin 1 of connector P35 on the P board and ground (Chassis).

From the previous slide (A)

Continue on next slide (A)

Unplug the TV and

reconnect SC20.

Perform the VSCN- F/5V_F

resistance test as

indicated on the next slide

8 Blinks

Note: For Slim models (GT & VT30), go to the slide after

the next.

Slide 52

VFO/VSCN_F and VF_5V Resistance Test (46”, 50”, and 55” FHD (S30 and ST30))This test can be used to quickly determine if either the SU, SD, or/and the SC board are bad. Note: even though a short circuit is a clear indication of a defective board, a no-short-circuit condition does not necessarily means that the boards are good. Follow the isolation procedure to determine if these boards are good or bad.

Preparation:

Unplug the TV prior to making any disconnection or connection.

Wait at least 2 minutes before removal of any connector.

Note: If the power LED continues to blink even after the TV has been unplugged, press and hold the power switch on the TV for a few seconds until the LED turns off.Resistance Test

Procedure to determine if there is a short

circuit or low resistance reading of the Vfo

(TPSC1) or the VF_5V (R515).

Using VFG (Floating ground screws) as ground,

measure the resistance of:

1. Resistor R515 (TPSC1/VFO)

2. Pin 3 of IC724 (VF-5V)

Continue on the page after the next

Slide 53

VFO/VSCN_F and VF_5V Resistance Test (50”~65” Slim Models (GT30 and VT30))This test can be used to quickly determine if either the SU, SD, or/and the SC board are bad. Note: even though a short circuit is a clear indication of a defective board, a no-short-circuit condition does not necessarily means that the boards are good. Follow the isolation procedure to determine if these boards are good or bad.

Preparation:

Unplug the TV prior to making any disconnection or connection.

Wait at least 2 minutes before removal of any connector.

Note: If the power LED continues to blink even after the TV has been unplugged, press and hold the power switch on the TV for a few seconds until the LED turns off.Resistance Test

Procedure to determine if there is a short

circuit or low resistance reading of the Vfo

(TPSC1) or the VF_5V (Junction of R696~R699).

Using VFG (Floating ground screws) as ground,

measure the resistance of:

1. Junction of R696~R699) (TPSC1/VSCN-1)

2. Pin 3 of IC724 (VF-5V)

Continue on the page

Slide 54

Unplug the TV and disconnect connector SU41/SC41 (See the previous slide for location). Follow the VFO/VSCN_F and VF_5V Resistance Test procedure explained on the previous slide.

With SC41/SU41 disconnected,

disconnect SC42/SD42 and follow the

resistance test on the previous slide.

YesNo Is there still a short circuit?

Replace the both the SU

and SD boards


circuit?Replace the SC

board

Replace the SC, SU, and SD

boards

Disconnect connectors SC41/SU41, SC42/SD42, and SC46/SD46 and

remove the VFG screws from the SU and SD boards. Then install the SC

board Jig (P/N or jumper across pins 1 and 2 of connector SC50 (See the next

slide for location)Plug in the TV and press the power

switch.

YesNo Does the TV turn on andstay on ?

(Black screen)

Replace the SC, SU, and SD

boards

Note: If either the SU or SD board is shorted, all 3 board must replaced together (SU, SD, and SC). Is highly likely that the SC board may be also bad even though it

does not show a short circuit.

Yes NoIs there a short circuit?

From previous page


Even though this procedure only indicates that the SD board is bad, all

3 boards (SU,SD, & SC) should be replaced at the same time

Even though this procedure only indicates that the SU board is bad, all

3 boards (SU,SD, & SC) should be replaced at the same time

Slide 55

SU-SD boards Isolation Procedure

Procedure:1. Remove the 4 VFG screws from the SU and SD

boards. (See picture on the left side.)

2. Remove SC41, SC42, and SC46 from the SC board. Also remove the ribbon cable between the SU and SD boards (SU11/SD11).

3. Install the SC50 Jig or just jump pins 1 and 2 of connector SC50 on the SC board.

Preparation:Disconnect AC Power prior to making any disconnection or connection.Wait at least 2 minutes before the removal of any connector.

Note: Remove the jig or the jumper after completing the isolation procedure.

Actual SC50 Jig

4. Plug-in the TV and turn it on.

Warning:

When performing this procedure, isolate the SU and SD boards together at the same time. Do not attempt to isolate the SU or the SD boards individually. This could cause further damages to the TV

Slide 56


Slide 57

8 Blinks Error Code

The SOS Detect circuit in the Sustain board monitors:Physical connection between the panel and the SS board.The output of the sustain drive circuit.

Under normal condition, Q16280 is on. When Q16280 is on, a low is provided to the anode of D16255.If any abnormality occurs on the sustain drive circuit or one of the FPC cables (SS53, SS54 or SS56) opens, Q16255 turns off and a high is provided to the anode of D16255 (D255). This high is provided to pin 10 of IC5000 on the A board. When this happens, the TV shuts down and the power LED blinks 8 times.

To determine if the 8 blinks is caused by the A board, SS board, or the Panel:• Isolate the SS board and check if the TV stays on when it’s turned on.• If the TV does not stay on after disconnecting the SS board, the A board is defective. • If the TV stays on, then the SS or the Panel is defective. • Check continuity between pins 1 and 2 of connectors SS53, SS54 and SS56. If open, the panel might

be defective. (Check for loose connection between the flex-cables and the SS board).• If continuity is OK, the SS board is defective.

1. Abnormality of the Sustain drive circuit.

2. Open or loose connection between the SS board and FPCs from the panel.

3. When SS53, SS54 or SS56 are disconnected.

4. When SC20 is disconnected.



Slide 58

8 Blinks Error Detect Circuit


Wait at least 2 minutes before the removal of any connector.





BlinkCode



8 Blinks SS A Panel

Slide 59

8 Blinks Error Detect Circuit

PP

AA

IC8000Peaks-LDA3

5V

13

SOS8SOS8AH161210

P5V

SSSS

ENERGYRECOVERY

IC16251(8X) SOSDETECT

15V

SS11

13

Vsus1

4

P5V

PAN

EL M

AIN

ON

P15VVda Vsus P11

1

4

SS53

SS54

SS331

Vsus pulse

P5V

Vsus

P15V

D16255

D16255

IC16241

IC5000ASIC

A40

SOS8

A6

P6

71

71

F-ST

B-O

N

1

20

20

SOS8SS56TC-P55VT30

SS2

Slide 60


Yes

Check all the flex-cables between the SS board and the panel. Make sure they are properly seated in the connectors. Unplug the TV and disconnect SS33 on the SS board. Plug in the TV and turn it on

NoReplace the A

board

Does the TV turn on andstay on ?

(Black screen)

Start Here

YesNo Is there continuity ?


Check connections between the SS board and the panel. If

ok, then replace the panel

Unplug the TV. Check for continuity between pins 1 and 2 of connector SS53 on the SS

board . Do not plug in the TV.

BlinkCode


Main Suspect

2nd 3rd 4th 5th 6th 7th

8 SS A Panel

Check for continuity between screws ZA102 and ZA106, also between ZA102 and ZA105 on the

SS board . Do not plug in the TV.Note: See previous slide for connectors location.

YesNo Is continuity OK on both

tests?

Slide 61


Slide 62

9 Blinks Error Code

1. Failure of PD4 IC9300 (Discharge control)

This condition can cause the TV to shutdown and the power LED to blink 9 time

IC5000ASIC

IC8000-1PeaksLDA3

Main System MPU

AH16PANEL_SOS

12

SOS_DCC (9) (D_SOS_RSV)

IC9300

D3

(Analog output)6 – 9 blinks

8

A

SOS-6

SOS-7

SOS-8

9 blinks can be caused by failure of IC9300, IC5000, or IC8000. Since all these ICs are located on the A board, only the A board should be replaced when a blinks condition is detected.

Slide 63


Start Here

Replace the A board



BlinkCode


Main Suspect

2nd 3rd 4th 5th 6th 7th

9 A

Slide 64


Slide 65


Start Here

BlinkCode



10 P A

Replace the A board

Plug in the TV and press the power switch immediately after the first relay click from the power supply is heard.

Did the number ofblinks changed?

NO Yes

Blinking 14 timesBlinking 10 times

Replace the P board

Slide 66


Start Here

BlinkCode



10 P A

Replace the A board

Plug in the TV and press the power switch immediately after the first relay click from the power supply is heard.

Did the number ofblinks changed?

NO Yes

Blinking 14 timesBlinking 10 times

Replace the P board

Slide 67


Slide 68

11 Blinks Error Detect Circuit (Fan SOS)

1. If one of the fans opens or increases resistance.2. If connector A8 is not seated properly.3. If the A board becomes defective triggering the shutdown circuit.


Slide 69

Slide 70

11 Blinks Error Code Explanation

The ventilation fans are monitored to be sure they are operating properly. If one of the fans opens or increases resistance, the resulting current change is applied to pin 61 of the main CPU (IC8000).

The fan drive circuit is located on the A board. To control the speed of the fan, a control voltage from the microprocessor(IC8000) is applied to IC5607. If any of the fans is removed or becomes defective, a high is output at the corresponding pin (pin 3, 9, or 12) of the fan connector (A8) to forward bias the inline diode. The DC output of the diode is provided to pin 61 of IC8000 to trigger the SOS condition.

Slide 70


Unplug the TV and disconnect the fans, one at a time. (See Fan Caution). Plug in the TV and turn it on.

YesReplace

The A board

Does the power LED stay on when the TV is turned

on?

Replace the Fan.

71

No

Fan Caution:

When a fans is disconnected, place a jumper between pins 2 and 3 (Black and Yellow wires) of the socket/connector that the fan was removed from.




NOTE A: Use a piece of wire, the size of a ¼ watt resistor’s leads as a jumper.

JUMPER WIRE

FAN CONNECTOR

PLUG

Start Here

Slide 71

Normally, If no jumper wire is used on the fan’s connector when a fan is disconnected, the TV shuts down in approximately 3 minutes.

Slide 71

12 Blinks Error Code

The transistor Q4930 monitors the speaker amplifier ICs (IC4900 – IC4901). Pin 3 is normally high. If any of the amplifier ICs or one of the speakers develops a short circuit, pin 3 goes low causing Q4930 to go into conduction and output a high to pin AG22 of the System CPU (IC8000) on the A board.When this happens, the TV shuts down and the power LED blinks 12 times.

1. A Board.2. Pinched speaker wire.3. Speakers


Slide 72




12 A Speaker

Unplug the TV and disconnect connectors A11and A12 from the A board. Plug in the TV and press the

power switch

Does the TV power

up andstay on?

NoYes

If the speakers wires are not pinched,Replace the speaker or Woofer

Replacethe A board

Start Here




Slide 73

13 Blinks Error Code

This condition can happen when the internal communication of the Main processor and the Standby microprocessor within the PEAKS-LDA3 IC is interrupted for more than 3 minutes.

Replace the A boardStart Here

Slide 74

14 Blinks Error CodeThese conditions can cause the TV to shutdown and the power LED to blink 14 times1. No F15V connected to the A board at plug-in (Open connection of both pins 10 & 11 between P6 and

A6)

2. Holding the power switch for over 5 seconds after the unit has gone into shut down and it’s in lock mode with the power LED solid red (Note: the LED stays on if the power button is momentarily pressed).

Unplug the TV and reseat P6/A6, then reconnect the TV. If the problem persists, disconnect the TV again and plug it back in. Get ready to measure the voltage on pin 10 of connector P6. Press the power switch.

Start Here

ReplaceThe A board

ReplaceThe P board

Is 15V present ?

YesNo

Slide 75

Troubleshooting No Power/Dead Unit

1. A Board.2. P Board.3. SC Board4. SS Board5. K Board6. A shorted P15V

These 5 conditions can cause the TV to be dead with no power.

Condition List of boards likely to cause this symptom.


Dead P A SC - SS K

Cautions: Disconnect the AC Power prior to making any disconnection or connection.When taking voltage reading, place the voltmeter probe at the test point, component, or connector’s pin indicated before connecting the TV to the AC line. This will ensure voltage reading accuracy before the TV shuts down. (Since the TV is shutting down, expect the voltage to only come up a couple of seconds.)

Slide 76

Troubleshooting No Power/Dead Unit (Power LED is Off)

Do the AC relaysclick after the TV is plugged

into the AC line?

Is the TV turning On

Is there 5V presentwhen the TV is plugged into

the AC line?

Replacethe A board

ReplaceThe K board (CheckWires between A1

and S1)

ReplaceThe P board

Yes

YesYes

Yes

NO NO

NO

NO Unplug the TV. Place your volt-meter on pin 1 of connector P6. Plug in the

TV and press the power switch

Is there 3.2V present when

the power button is pressed?

Unplug the TV and disconnect A1 on the A board. Plug in the TV and ground pin 8 of connector A1 momentarily

Unplug the TV and place your volt-meter on pin 6 of

connector P6. Plug in the TVBut do not turn the power on

ReplaceThe P board.

(Check the AC Cord)

Unplug the TV and disconnect A1 on the A board. Plug in the TV but do not turn the power on

Plug in the TV. Do not turn the power on

Do the relays click now?YesNO

Replacethe A board

Start Here If the Power Supply squeals, replace the section (P1 or P2) of the P board causing the squealing.

Make sure connectors P34 and P6 are properly seated. Follow the procedure on slide 79 to check the P15V for short circuit or low resistance.

Is there a short circuit of the

P15V?

YesNo

Shorted P15V

Continue on next slide (C)

Slide 77

From the previous slide (C)

Unplug connectors P6 and P11, on the P board. Measure the resistance between pin 15 of connector P6 and ground (Chassis)

Reconnect P11 and measure the resistance between pin 15 of connector P6 and ground (Chassis)


circuit?

Replace the P board

Disconnect SC20 on the SC board and reconnect P6. Measure the resistance between pin 15 of connector P6

and ground (Chassis)


circuit?



circuit?

Replace the A board


Detailed Troubleshooting Procedure for Shorted

P15V

Slide 78

Quick Procedure To Check For Short or Low Resistance Condition of the Vda Line

1. Make sure the TV is disconnected.

2. Remove any residual charge from the Vda line by momentarily grounding them through a 500 ohms resistor (At least 5Watts).

3. Measure the resistance between chassis ground and the pins indicated on the table below. A dead short or a reading lower than 1K indicates a shorted or partially shorted line.

Vda is generated by the Power supply and is only used by the Panel (Panel Drive ICs)

Test points for the Vda can be easily found on the P board. To check for short circuit or low resistance on this line, follow this procedure:

Preparation

Voltage Test Points

Connector Pin Number Voltage

P35 1 Vda

Slide 79

TV’s Behavior After Connectors RemovalMODEL N0. TC-P55VT30 (Connectors Removal on the SC Board)

Connector Connector Connector on C1 Board

Result

SC2 SOS 7 Blinks

SC20 SOS 8 Blinks

SC2 SC20 SOS 8 Blinks

SC2 C10 SOS 8 Blinks (6 Blinks ST30)

SC20 C10 SOS 8 Blinks (TV Stays On ST30)

SC2 SC20 C10 SOS 8 Blinks (TV Stays On ST30)

MODEL N0. TC-P55VT30 (Connectors Removal on the SS + combination of connectors on the SS board and SC board)

Connector Connector Connector on SC Board

Connector on SC Board

Result

SS11 TV Stays On (SC LED

On)

SS33 TV Stays On (SC LED

On)

SS11 SS33 TV Stays On (SC LED

On)

SS11 SC2 SOS 7 Blinks


SS11 SS33 SC2 SOS 7 Blinks


SS11 SC2 SC20 SOS 8 Blinks

SS33 SC20 Fans On for 8 sec, then

SOS 6 Blinks after 20sec

SS33 SC2 SC20 Fans On for 8 sec, then


SS11 SS33 SC2 SC20 Fans On for 8 sec, then


MODEL N0. TC-P55VT30 (Connectors Removal on the A Board)

Connector Connector Connector Result

A20 SOS 8 Blinks

A31 SOS 8 Blinks (6 Blinks ST30)

A32 SOS 8 Blinks (6 Blinks ST30)

A20 A31 SOS 8 Blinks (TV Stays ON with Black

Screen ST30)

A20 A32 SOS 8 Blinks (6 Blinks ST30)

A31 A32 SOS 8 Blinks (6 Blinks ST30)

A20 A31 A32 SOS 8 Blinks

Connector Connector Connector Result

SC20 C10 SS33 TV Stays On With Fans Running and Black Screen.

Slide 80

Procedure to Check The Power Supply (Without Any Load)

The Power Supply can be tested without any load by removing several connectors from the P and A boards.

Remove the following connectors from the P board:

P2, P11, and P35.

Remove the following connectors from the A board :

A11, A12, A20, A31, A32, A14, and A40.

Procedure:

1. Plug in the TV. The relays from the P board should click. (Note: if a second click is heard approximately 10~15 seconds after the 1st click, the F15V is confirmed to be present.)

2. Turn the power on. (Note: The power LED should turn on and the fans should be running. If this is the case, measure the Vsus and Vda.)

Vsus can be measured on pin 1 of connector P2 or P11.

Vda can be measured on pin 1 of connector P35.

3. If these voltages are OK, then the power supply is OK. (Note: The TV won’t turn on if there is a short circuit on the P15V.)

Note: If there is a short circuit on the Vsus or Vda lines while this test is conducted;

• The SOS4_PS is not triggered. Pin 4 of connector P6 stays low. (Note: The PS SOS only monitors over-voltage conditions.

• The TV will still turn on without Vsus or Vda.

• The fans will continue to run.

Caution: Do not allow the TV to run for more than 30 seconds when isolating the power supply.

Slide 81

Procedure to Check The Power Supply (Without Any Load)

Remove

Remove

Remove

Remove

Remove

P2

P11

P35A40

A11

A20 – A31 – A32

A14

A12

Slide 82

End

Slide 83

Date post:	14-May-2018
Category:	Documents
Upload:	phamhuong
View:	220 times
Download:	2 times

Cover Page 2011 – Premium 3D Plasma TV · 2011- Plasma FHD TV – (14. th . Generation)...

Documents