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SERVICE MANUAL

LED TV

Model No. 32D3005

MSD3393LU Chassis

WARNINGThis 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.

2013 Qingdao Haier Electronics Co., Ltd.

All rights reserved. Unauthorized copying and distribution is a violation of law.

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Service ManualModel No.: 32D3005

CONTENTS

Chapter 1. General Information

1-1. Document Information ..............................................................3

1-2. General Guidelines.....................................................................3

1-3. Important Notice.........................................................................31-3-1. Follow the regulations and warnings ..................................................... 3

1-3-2. Be careful to the electrical shock ............................................................31-3-3. Electro static discharge (ESD)............................................................... .31-3-4. About lead free solder (PbF)...................................................................41-3-5. Use the genewing parts (specified parts) .............................................. 41-3-6 Safety check after repairment................................................................. 41-3-7. Ordering Spare Parts............................................................................. 61-3-8. Photo used in this manual .....................................................................6

1-4. How to Read this Service Manual ............................................6Using icons ...............................................................................................................6

Chapter 2. Specification

2-1. Specification list.........................................................................8

2-2. External pictures (four faces)....................................................9Chapter 3. Disassemble and Assemble

3-1. 32D3005 .................................................................................11

3-1-1. Remove the Stand.................................................................................11

3-1-2. Remove the Back Cabinet ....................................................................11

3-1-3. Remove the Mainboard.........................................................................11

3-1-4. Remove the Power Supply Module ......................................................11

3-1-5. Remove the Speaker.............................................................................11

3-1-6. Remove the Remote Control Board .....................................................12

3-1-7. Remove the Key Board.........................................................................12

Chapter 4. Location of Controls and Components

4-1. Board Location .........................................................................13

4-2. Mainboard .................................................................................14

4-2-1. Function Description .............................................................................14

4-2-2. Connector definition ..............................................................................14

4-3. Power Supply Module ..............................................................15

4-3-1. Function Description .............................................................................15

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4-3-2. Connector definition ..............................................................................15

4-4. LCD Panel ..................................................................................16

Chapter 5. Installation Instructions

5-1. Accessories ..............................................................................18

5-2. External Equipment Connections............................................19

Chapter 6. Operation Instructions

6-1. Front Panel Controls.................................................................20

6-2. Back Panel Controls .................................................................21

6-3. Setting Up Your Remote Control .............................................22

Chapter 7. Electrical Parts

7-1. Block Diagram............................................................................23

7-2. Circuit Diagram..........................................................................30

Chapter 8. Measurements and Adjustments

8-1. Service Mode ............................................................................318-1-1.How to enter into Service Mode............................................................ 31

8-1-2.How to exit ............................................................................................31

8-2. Measurements and Adjustments ............................................318-2-1. The Main Menu ....................................................................................31

8-2-2. General Setting ....................................................................................328-2-3. Picture ..................................................................................................328-2-4. Sound................................................................................................... 338-2-5. Debug...................................................................................................33

8-3. Software Update ......................................................................348-3-1. T.VST59 software update ....................................................................34

Chapter 9. Trouble shooting

9-1. Simple check ...........................................................................35

9-2. Mainboard IC Introduction......................................................38

9-3. Mainboard Failure Check........................................................39

9-4. Pannel Failure..........................................................................45

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Chapter 1. General Information

1-1. Document Information

Document format: Adobe PDF

Author: shouwang.wen

Compiler:

1-2. General Guidelines

When servicing, observe the original lead dress. If a short circuit is found, replace all parts which

have been overheated or damaged by the short circuit.

After servicing, see to it that all the protective devices such as insulation barriers, insulation papers

shields are properly installed.

After servicing, make the following leakage current checks to prevent the customer from being

exposed to shock hazards.

1) Leakage Current Cold Check

2) Leakage Current Hot Check

3) Prevention of Electro Static Discharge (ESD) to Electrostatically Sensitive

1-3. Important Notice

1-3-1. Follow the regulations and warnings

Most important thing is to list up the potential hazard or risk for the service personnel to open

the units and disassemble the units. For example, we need to describe properly how to avoid the

possibility to get electrical shock from the live power supply or charged electrical parts (even the

power is off).

This symbol indicates that high voltage is present inside.It is dangerous to make any

king of contact with any inside part of this product.

This symbol indicates that there are important operating and maintenance instructions

in the literture accompanying the appliance.

1-3-2. Be careful to the electrical shock

To prevent damage which might result in electric shock or fire, do not expose this TV set to rain

or excessive moisture. This TV must not be exposed to dripping or splashing water, and objects

filled with liquid, such as vases, must not be placed on top of or above the TV.

1-3-3. Electro static discharge (ESD)

Some semiconductor (solid state) devices can be damaged easily by static electricity. Such

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components commonly are called Electrostatically Sensitive (ES) Devices. The following

techniques should be used to help reduce the incidence of component damage caused by

electros static discharge (ESD).

Electrostatically Sensitive (ES) Devices

Some semiconductor (solid-state) devices can be damaged easily by static electricity. Such

components commonly are called Electrostatically Sensitive (ES) Devices. Examples of typical

ES devices are integrated circuits and some field-effect transistors and semiconductor "chip"

components. The following techniques should be used to help reduce the ncidence of component

damage caused by static by static electricity.

1. Immediately before handling any semiconductor component or semiconductor-equipped

assembly, drain off any electrostatic charge on your body by touching a known earth ground.

Alternatively, obtain and wear a commercially available discharging wrist strap device, which

should be removed to prevent potential shock reasons prior to applying power to the unit under

test.

2. After removing an electrical assembly equipped with ES devices, place the assembly on a

conductive surface such as aluminum foil, to prevent electrostatic charge buildup or exposure of

the assembly.

1-3-4. About lead free solder (PbF)

This product is manufactured using lead-free solder as a part of a movement within the

consumer products industry at large to be environmentally responsible. Lead-free solder must beused in the servicing and repairing of this product.

1-3-5. Use the genewing parts (specified parts)

Special parts which have purposes of fire retardant (resistors), high-quality sound (capacitors),

low noise (resistors), etc. are used.

When replacing any of components, be sure to use only manufacture's specified parts shown in

the parts list.

Safety Component

Components identified by mark have special characteristics important for safety.

1-3-6 Safety check after repairment

Confirm that the screws, parts and wiring which were removed in order to service are put in the

original positions, or whether there are the positions which are deteriorated around the serviced

places serviced or not. Check the insulation between the antenna terminal or external metal and

the AC cord plug blades. And be sure the safety of that.

General Servicing Precautions

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1. Always unplug the receiver AC power cord from the AC power source before:

a. Removing or reinstalling any component, circuit board module or any other receiver

assembly.

b. Disconnecting or reconnecting any receiver electrical plug or other electrical connection.

c. Connecting a test substitute in parallel with an electrolytic capacitor in the receiver.

CAUTION:A wrong part substitution or incorrect polarity installation of electrolytic capacitors

may result in an explosion hazard.

2. Test high voltage only by measuring it with an appropriate high voltage meter or other voltage

measuring device (DVM, FETVOM, etc) equipped with a suitable high voltage probe.

Do not test high voltage by "drawing an arc".

3. Do not spray chemicals on or near this receiver or any of its assemblies.

4. Unless specified otherwise in this service manual, clean electrical contacts only by applying

the following mixture to the contacts with a pipe cleaner, cotton-tipped stick or comparable non-

abrasive applicator; 10% (by volume) Acetone and 90% (by volume) isopropyl alcohol (90%-99%

strength).

CAUTION:This is a flammable mixture.

Unless specifiedotherwise in this service manual, lubrication of contacts is not required.

Capacitors may result in an explosion hazard.

5. Do not defeat any plug/socket B+ voltage interlocks with which receivers covered by this

service manual might be equipped.

6. Do not apply AC power to this instrument and/or any of its electrical assemblies unless all

solid-state device heat sinks are correctly installed.

7. Always connect the test receiver ground lead to the receiver chassis ground before connecting

the test receiver positive lead.

Always remove the test receiver ground lead last. Capacitors may result in an explosion

hazard.

8. Use with this receiver only the test fixtures specified in this service manual.

CAUTION:Do not connect the test fixtureground strap to any heat sink in this receiver.

9. Remove the antenna terminal on TV and turn on the TV.

10. Insulation resistance between the cord plug terminals and the eternal exposure metal should

be more than Mohm by using the 500V insulation resistance meter.

11. If the insulation resistance is less than M ohm, the inspection repair should be required.

If you have not the 500V insulation resistance meter, use a Tester. External exposure metal:

Antenna terminal Headphone jack.

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12. Use only a grounded-tip soldering iron to solder or unsolder ES devices.

13. Use only an anti-static type solder removal device. Some solder removal devices not

classifiedas "anti-static" can generate electrical charges sufficient to damage ES devices.

14. Do not use freon-propelled chemicals. These can generate electrical charges sufficient to

damage ES devices.

15. Do not remove a replacement ES device from its protective package until immediately

before you are ready to install it.

(Most replacement ES devices are packaged with leads electrically shorted together by

conductive foam, aluminum foil or comparable conductive material).

16. Immediately before removing the protective material from the leads of a replacement ES

device, touch the protective material to the chassis or circuit assembly into which the device will

be installed.

CAUTION:Be sure no power is applied to the chassis or circuit, and observe all other safety

precautions.

17. Minimize bodily motions when handling unpackaged replacement ES devices. (Otherwise

harmless motion such as the brushing together of your clothes fabric or the lifting of your foot

from a carpeted floor can generate static electricity sufficient to damage an ES device.)

1-3-7. Ordering Spare Parts

Please include the following informations when you order parts. (Particularly the Version letter)

1. Model number, serial number and software version

The model number and serial number can be found on the back cover of each product. Software

version can be found in the Spare Parts List.

2. Spare part No. and description

Spare part No. and description can be found in the Spare Parts List.

1-3-8. Photo used in this manual

The illustration and photos used in this Service Manual may not base on the final design of

products, which may differ from your products in some way.

1-4. How to Read this Service Manual

Using iconsIcons are used to attract the attention of the reader to specific information. The meaning of each

icon is described in the table below:

Note:

A note provides information that is not indispensable, but may nevertheless be

valuable to the reader, such as tips and tricks.

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Caution:

A caution is used when there is danger that the reader, through incorrect

manipulation, may damage equipment, loose data, get an unexpected result or has to

restart(part of) a procedure.

Warning:

A warning is used when there is danger of personal injury.

Reference:

A reference guides the reader to other places in this binder or in this manual, where

he/she will find additional information on a specific topic.

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Model 32D3005

Screen Size 32"

Aspect Ratio 16:9

Resolution 1366x768

Brightness (cd/m) 220

Contrast 1000:1

Response Time (ms) 9

Angel of View H:170, V:160

Color Display 16.7M

OSD Language English,French,Spanish.

Color System NTSCATSC

Audio System MN

Audio Output Power (Built-in) (W) 8W2

Audio Output Power (outer) (W) No

Total Power Input (W) 60W

Voltage Range (V) AC100V~240V

Power Frequency (Hz) 50~60Hz

Time of Sleep Timer (MINS) 240Min

Net Weight (KG) 4.32KG

Gross Weight (KG) 6.48KG

Net Dimension (MM) 729.51*432.08*75.4

Packaged Dimension (MM) 792*144*516


Chapter 2. Specification

2-1. Specification list

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2-2. External pictures (four faces)

Front Side

Up Side

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Right Side

Back Side

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Chapter 3. Disassemble and Assemble

3-1. 32D3005

3-1-1. Remove the Stand 3-1-3. Remove the power-main board.

1. Remove the six screws indicated with red circles.2. Then remove the side metal board and down metal board.

3. Remove the four screws indicated with red circles.

4. Remove the power-main board.

1. Lay down the TV set .

2. Remove the four screws from the stand which

in the picture above.

3. Remove the stand.

3-1-2. Remove the Back Cabinet

3-1-4. Remove the Speaker

Remove the speaker directly

1.Remove the fifteen screws indicated with red

circles.

2.Flip machine, panel side up.

3.Carefully raise the Front shell from

bottom.

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3-1-6. Remove the Remote Control Board And the Key Board

Remove the Remote Control Board and the Key Board indicated byred circle in below picture.

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Chapter 4. Location of Controls and Components

4-1. Board Location

13

A Board

B Panel

No. Parts number Description

A Board power-main board

B Panel LCD Panel

DH1TKPM0003M

712-315E7-Z0251

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4-2. Mainboard

4-2-1. Function Description

Process signal which incept from exterior equipment then translate into signal that panel can

display.

4-2-2. Connector definition

14

IR & Key Interface

CN6

Pin number Signal name

1 GND

2 K7

3 K6

4 K5

5 K4

6 K3

7 K2

8 K1

9 K0

10 GND

11 IR

12 GRE

13 RED

14 5V

LED Backlight interface

CN804/CN805Pin number Signal name

1 LED+

2 NC

3 LED-

Speaker connector CN20

Pin number Signal name

1 ROUT+

2 ROUT-

3 LOUT-4 LOUT+

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4-3. LCD Panel

32D3005

Backlight Unit

LVDS CONNECTOR CNF1

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Chapter 5. Installation Instructions

5-1. Accessories

Remote Control

18

Batteries

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5-2. External Equipment Connections

Antenna Connection

Connect your aerial to the back of the TV into theANTENNA IN socket.

Improve Your Signal

To improve picture quality in a poor signal area, use a

signal amplifier (not supplied).

Connect Your PC to the TV

Connect a DVD Player or VCR toYour TV

There are two ways in which you can connect a DVD

player or VCR to your TV. Make sure that both the TV

and DVD player or VCR are switched off before you

connect them.

HDMI Input

You can use your TV as a monitor for your personalcomputer by connecting it with a VGA cable (not

supplied).

AConnect the cable from the HDMI device to the TV

HDMI socket.

A

B

Read your computer user guide and check it has a

VGA connector.

Turn off your TV and PC.

B

C

Press theSOURCEbutton to select HDMI mode.

Refer to the HDMI device user guide for how to

operate.

C Connect a D type 15-pin VGA interface cable to the

VGA video interface connector on the PC. Connect

the other end of the cable to the PC interface

connector on the TV. Tighten the screws on the

D

E

VGA connectors and connect the audio cable (not

supplied) to the audio input socket on the back of the

TV.

Turn on the TV firstlyand then the PC.

Press the Source button on the TV or TV remotecontrol to set the video input mode to PC.

F Once the image shows, if there is noise present,

change the PC mode to other resolutions, change the

refresh rate to other rate or adjust the brightness and

contrast on the menu until the picture is clear.

Connect a DVD Player to Your TV

Connect the DVD video outputs (Y, Pb, Pr) to theCOMPONENT (Y, Pb, Pr) IN socket on your TV.

A

B

C

Turn on the DVD player and insert a DVD disk.

Press the SOURCE button to select COMPONENT

mode.

Refer to the DVD player user guide for operating

instructions.

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1 POWER Press to turn the TV on and off.

2 CH- TV channel down.

3 CH+ TV channel up.

4 VOL- Press to decrease the volume.

5 VOL+ Press to increase the volume.

6 MENU Press to select the main menu.

7 INPUT Press to select the input source.


Chapter 6. Operation Instructions

6-1. Front Panel Controls

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9 10 11 12

1 2 3 4 5 6 7 8


6-2. Back Panel Controls

21

1 Earphone output

2 Coax output

3 Audio in input

4 Video/Y in input

5 PbPr IN input

6 PC Audio input

7 VGA input

8 RF input

9 HDMI1 input10 HDMI2(MHL) input

11 HDMI3(ARC) input

12 USB IN input

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6-3. Setting Up Your Remote Control

When using the remote control, aim it towards the remote sensor on the TV.

1 2

3

4 5

21

6

7

8 9

10 11

12 1314 16

15 1718 19

20

21 22

23 24

25 26

22

POWER.INPUT.USB Shortcut button.CC.HOME;

Program Number Channel selection.

RECALL button.

VOL+/VOL-: Volume selection.

CH/CH: Channel selection.

Mute.

Menu button.

Back button.Exit button.DISPLAY button.SAP button.Sleep button.Wide button.Audio button.Picture Mode.OK button.Channel List.Favorite program.Play / Pause button (only for USB).EPG button.Fast Reverse (only for USB).

Fast Forward (only for USB).

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VI3

VO 2

ADJ

1

VO 4

UL2LC1117CLTRAD 1V8_DDR

RL1

330ohm

RL2

150ohm

CL6

0.1uF-16V

CL5

0.1uF-16V

5V_M

CL7

10uF-6.3V

GND

GND

GND

CL4

10uF-10V CL19

NC/22uF-6.3V

PWM/ADJ PWM-DIMPWM-DIM

PWM-DIM

TESTRB9

1Kohm

5V_STB 5V_M

GND

RM34

100Kohm

CM31

0.1uF

CM32

0.1uF

QM32WPM2341A-3/TR

GND

POW_EN

QE2

LMBT3904LT1G

RE5

10Kohm

3V3_STB

RE4

10Kohm

RE2

4K7ohm

5V_STB

C5610uF-16V

C1

0.1uF-16V

RD5

100Kohm

C2

0.1uF

12V

C5710uF

IN3

EN5

BS

6

SW 2

FB 4

GND

1

UD3MP1470GJ-Z

RD918Kohm

RD8

3K3ohm

RD24

100KohmC2210pF

RD40ohm

CD11

0.1uF-16V

LD2 SCD54TL-4R7M

+E2

470uF

+E1

470uF-16V

RD2

12K4ohmRD3

13Kohm

CD5

0.1uF-16V

RD1

10Kohm

EN1

GND

2

SW 3

VIN4

FB 5

UD1

M3406-ADJ

1.15V_STB1.15V_STB

TEST

CD3

22uF-6.3V

CD2

0.1uF-16V

CL11

0.1uF-16V

3V3_STB

CL1

0.1uF-16V

5V_STB

VI3

VO 2

ADJ

1

VO 4

UL1LC1117CLTR33

CL3

10uF-6.3V

CD4

10uF-6.3V

5V_STB

GND

GND

GND GND

LD1

SCD54TL-6R8M

C8

NC/10uF-10V

CD1

10uF-10V

PVCC

QM1

WPM3407C-3/TR

RM3

200Kohm

QM2

LMBT3904LT1G

RM1

4K7ohm

VCC_Panel

R12V

0ohm

PVCC12V

CM2

0.1uF-16V

GND

GND

CM6

10uF-16V

POW_EN

GND

RM5

1K5ohm

LED-SHORTRM4

3Kohm

RM7

100ohm

R5V

NC/0ohm

PVCC5V_STB

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AMP-LO

AMP-RO

AMP-L1

AMP-R1

GND

3V3_STB

GND

CL8

1uF-6.3V

CL9

1uF-6.3V

1V8_DDR

CL16

1uF-6.3V

GND

1.15V_STB

CD7

0.1uF-16V

CD8

1uF-6.3V

CD9

1uF-6.3V

CD10

0.1uF-16V

3V3_STBFB2

FCM1005KF

CL17

0.1uF-16V

GND

3V3_STBFB3FCM1005KF

CL18

0.1uF-16V

GND

+3_3V_AU+3_3V_PLL

CL10

1uF-6.3V

CL12

1uF-6.3V

CL13

1uF-6.3V

CL14

0.1uF-16V

FB4

FCM1005KF

+3_3V_ADC

CL20

1uF-6.3V

CL15

1uF-6.3V

C5

1000pF

C6

1000pF

R5

200Kohm

R6

200Kohm

R3100ohm

R4100ohm

CL2

0.1uF-16V

GND

PWM/ADJ

MHL_

CABLE-DET

AMP-MUTE

AU_VRM

IF_

AGC

VIFP

VIFM

AU_VAG

+3_3V_AU

1.15V_STB

GIN1M

HD1_SOG

HD1_Pr

HD1_Y

HD1_Pb

VGA_RIN

VGA_GINVGA_BIN

GIN0M

VGA_HS

VGA_VS

AV_

LIN

AV_

RIN

HDMI-ARC

HDMI2_

SCL

HDMI2_

SDA

HDMI2_

RXC_

N

HDMI2_

RXC_

P

HDMI2_

RX0_

N

HDMI2_

RX0_

P

HDMI2_RX1_NHDMI2_RX1_PHDMI2_RX2_NHDMI2_RX2_P

HOTPLUG1'

HDMI1_

SCL

HDMI1_

SDA

HDMI1_

RXC_

N

HDMI1_

RXC_

P

HDMI1_

RX0_

N

HDMI1_

RX0_

P

HDMI1_

RX1_

N

HDMI1_

RX1_

P

HDMI1_

RX2_

N

HDMI1_

RX2_

P

HDMI3_

SCL

HDMI3_

SDA

HDMI3_RXC_NHDMI3_RXC_PHDMI3_RX0_NHDMI3_RX0_PHDMI3_RX1_NHDMI3_RX1_PHDMI3_RX2_NHDMI3_RX2_P

HOTPLUG2'

HDMI-CEC

UART-TX/DDCUART-RX/DDC

REMOTE

RESET_H

SPI_CSNSPI_SCK

SPI_SDISPI_SDO

RXO2_N

RXO3_PRXO3_N

RXO2_P

RXO0_N

RXO1_PRXO1_NRXO0_P

RXE3_

P

RXE2_NRXE1_PRXE1_N

RXE0_NRXE0_P

RXE2_P

RXE3_

N

RXEC_

N

RXEC_

P

M_

SCL

M_

SDA

XTALI

XTALO

SPDIF_

OUT

POW_

EN

PC_LINPC_RIN

AMP-LO

AMP-RO

GND

+3_

3V_

ADC

+3_

3V_

PLL

1.15V_

STB

1V8_

DDR

3V3_

STB

GND

1.15V_

STB

AVDD5V_

MHL

1V8_

DDR

1.15V_

STB

GND

USB0_DMUSB0_DP

GND

VCOM

LED_REDKEY

BL_EN

LVA0M 70

SOGIN122

BIN1P21

GIN1M24

GIN1P23

CVBS028

CVBS127

AUL136

GIN0P16

GPIO0/GPIO44

55

LVACKM

64

VDDC/DVDD_

DDR_

CMD

54

VDDIO_

CMD

53

AVDD_MOD5

RIN1P25

HOTPLUG_C/D 80

LVA1P 67

LVB3P 71

DDCDB_

CL

112

DDCDB_

DA

111

GIN0M17

IRIN 93

CEC 92

TEST 91

DDCA_CK 90

DDCA_DA 89

LVA3M

62

LVACKP

63

LVA2P 65

LVA2M 66

DP_P0 97

LVB2P 74

LVB2M 75

LVB1P 76

LVB1M 77

LCK/LVB0P 78

PWM0 83

AVDD_MOD 73

DM_P0 96

HOTPLUG_

B

113

AVDD_

5V

114

GND_

EFUSE

115

RX0P_

B

128

VIFP

46

VIFM

47

AUOUTR0

44

IFAGC

45

XIN

50

AVDD3P3_

DMPLL

49

XOUT

51

RX1N_B1

RX1P_B2

RX2N_B3

RX2P_B

4

RXCN_A6

RXCP_A7

RX0N_A8

RX0P_A9

RX1N_A10

RX1P_A11

RX2N_A12

RX2P_A13

HSYNC014

BIN0P15

RIN0P18

VSYNC019

AVDD3P3_ADC20

VCOM29

CVBS_OUT130

VDDC31

AVDD_AU3332

VAG37

AUL034

AUR135

AUR4

40

AUOUTL3

41

AVDD_

MOD

52

GPIO3/GPIO47

58

GPIO4/GPIO48

59

LVA3P

61

GPIO2/GPIO46

57

LVA0P 69

LVB3M 72

LVA1M 68

LDE/LVB0M 79

HOTPLUG_A 81

SPI_DO 84

SPI_DI 85

SPI_CZ 86

PWM1 82

VDDIO_

DATA

105

DDCDC_

CL

106

DM_P1 98

VDDC/DVDD_

DDR_

DATA

104

DP_P1

99AVDD_MOD

100

DDCDA_

DA

109

INT/GPIO64 94

VDDC/AVDDL_

DVI

116

RESET 95

MHL_

DET

110

DDCDC_

DA

107

DDCDA_

CL

108

E-PAD

129

VSYNC126

AUR033

AUOUTL0

43

AUOUTR3

42

GPIO1/GPIO45

56

SPI_CK 87

RXCN_

D

117

RXCP_

D

118

RX0N_

D

119

RX0P_

D

120

RX1N_

D

121

RX2N_

D

123

RX2P_

D

124

RX1P_

D

122

RXCP_

B

126

RX0N_

B

127

RXCN_

B

125

VRM38

AUL4

39

SAR1 102

SAR0 101

SAR2

103

GPIO5/GPIO49

60

ARC 88

AVDD3P3_

DADC

48

U1

MSD3393LU

GND

FB5

FCM1005KF

C3

10uF-6.3V

C4

0.1uF-16V

C14

0.1uF-16V

3V3_STB

3V3_STB

3V3_STB

3V3_STB

HOTPLUG3'

VCOMRI7

68ohm

CI7

0.047uF

GND

GIN1MRI37

68ohm

CI10

0.047uF

GND

HDMI3_

DET

PH_EN

PH-DET/

XTALI

XTALOCF2

33pF

CF1

33pF

GND

GND

R99

1Mohm

Y1

24MHz

RF4

NC/100Kohm

RESET_HRF3

NC/1Kohm

QF1NC/SGM810-SXN3L

GND

CF17

NC/0.1uF-16V

GND

PWM/ADJ

BL_EN

R26 4K 7ohm

R 2 4 K7 oh m

3V3_STB

CE#1

SO2

WP#3

VSS4

SI 5

SCK 6

HOLD# 7

VDD 8

UF1

GD25Q16BSIG

SPI_SCK

SPI_CSN

SPI_SDI

SPI_SDO

RF12

10Kohm

#F_WP

GND

3V3_STB

CF7

0.1uF-16V

GND

CF16

NC/0.1uF-16V

GND

3V3_STB

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RV1 3

1 0 Koh m

RV1 8

1 0 0 oh m

RV1 2

1 0 0 oh m

1 6 2 7 3 8 4 9 5

1 1

1 2

1 3

1 4

1 5

1 0

1716

TXD

SDA

HS

VS

SCL

RGND

GGND

BGND

RXD

5V

DET

GND

GND GND

DB15

AV7

WLHD-0 5 1 A

RV1 1

1 0 0 oh m

RV1 4

1 0 Koh m

RV1 6

1 0 0 oh m

RV1

75ohmRV2

75ohmRV3

75ohm

RV4

3 3 oh m

RV6 3 3

oh m

RV8 3 3

oh m

CV4

0 .0 4 7 uF

CV6

0 .0 4 7 uF

CV8

0 .0 4 7 uF

GND

GND

GND

VGA_HS

VGA_VS

RV7 6 8

oh m

CV7

0 .0 4 7 uF

GND

RV1 7

4K7ohm

RV1 5

4K7ohm

GND

5 V_S TB

UART-RX/DDC

UART-TX/DDC

VS_VGA

HS_VGA

VGA_RI N

VGA_GI N

VGA_BI N

GI N0 M

VGA_S DA

VGA_S CL

RV2 1 12Kohm

RV2 2

12Kohm

RV2 0

1 0 Koh m

RV1 9

1 0 Koh m

1 2 3 4 5

GND

ERO

RSPK

LSPK

ELO

AV8

P J-3 2 5

GND

GND

PC_LIN

PC_RIN

GND

CV1 9

0 .1 uF -1 6 V

CV2 0

0 .1 uF -1 6 V

CV1

NC/10pFCV2

NC/10pFCV3

NC/10pF

S P DI F _OUT

CF 5 1

0 .1 uF -1 6 V

CF 5 2

330pF

RF 5 2

100ohm

RF 5 1

2 2 0 oh m

GND

CO

AX

S P DI F _OUT'

CF 5 3

NC/10pF

DF 4 1

NC/AIES12U0 20R2

DF 4 2 NC/AIES12U0 20R2

5V_M

F 2

NC/ F S MD1 1 0 U

SB0_DP

USB0_DM

USB_5V

GND

GND

RF 4 1

5 R1 oh m

RF 4 2

5 R1 oh m

USB_P

1 2 3 4

CN1 5

NC/ 4 P I N-2 .0 -D-H-G

RF 4 3

0 oh m

USB_5V

USB_M

USB_PG

ND

1 2 3 4

GND

DM

DP

5V

5 6

GND

GND

AV2 1

US B-0 4 2 M-0 0 2 DP

GND

VS_VGA

HS_VGA

GND

USB_M

D7

NC/AVLC18 S02003

CF 4 1

10uF-10V

GND

GND

S P DI F _OUT'

COAX

5 V_M

RF 2 NC/0ohm

I RTr ansmi t t er

Vi n

1

Vcc

2

GND

3

GND

4

GND

5

AV26

NC/ GQ-0 3 -0 8

+

EF 1

NC/100uF-1 6V

RI 3 3

75ohmRI 3 2

75ohmRI 3 1

75ohmGND

GND

GND

YPbPr_Y

YPbPr_Pb

YPbPr_Pr

YPbPr_Y

YPbPr_Pb

YPbPr_Pr

GND

D4

NC/AVLC18S 02003D5

AVLC18S02003D6

NC/AVLC18S 02003

RI 3 4

3 3 oh m

RI 3 8

3 3 oh m

RI 3 6

3 3 oh m C

I 8

1 0 0 0 pF

CI 9

0 .0 4 7 uF

CI 3 6

0 .0 4 7 uF

CI 3 8

0 .0 4 7 uF

HD1_SOG

HD1_Pr

HD1_Y

HD1_Pb

YPbPr_Y

YPbPr_Pb

YPbPr_Pr

1 2 3 4 5 6

Pb

GND

YGND

Pr

GND

AV4

AV1 9 -0 3 S -0 0 2 0 (

) -

AV_LIN

AV_RIN

AV_L

AV_R

RI 2 12Kohm

RI 5

1 0 Koh m

RI 3 12Kohm

RI 6

1 0 Koh m

GND

GND

CI 5

0 .1 uF -1 6 V

CI 6

0 .1 uF -1 6 V

D9

NC/AVLC18 S02003 D8

NC/AVLC18 S02003

GND

GND

AV_L

AV_R

GND

GND

AV_R

AV_L

COAX

1 4 2

LGND

RGND

3

AV6

NC/ AV2 -8 .4 -8 4 -Y(

) -

1 2 3 4 5 6

LGND

R GND

COAX

GND

AV1 8

AV3 -8 .4 -0 6 C(

) -

-JS L

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CT33

33pF

3V3_

Tun

1.8

VRF

IFN

IFP

CT15

0.1uF-16V

3V3_

Tun

1.8

VRF

CT12

0.1uF-16V

3V3_

Tun

CT6

0.1uF-16V

GND

GND

CT4

0.1uF-16V

1.8

VRF

G

ND

CT8

1000pF

CT9

1000pF

RT3

100ohm

CT14

NC/0.1uF-16V

GND

CT11

0.1uF-16V

GND

3V3_

Tun

RT1

750Kohm

GND

GND

CT2

1uF-6.3

V

CT1

1uF-6.3

V

C78 1uF-6.3V

LT1

MGHB1005S102T-LF

TUNER_

SCL

TUNER_

SDA

TDA_

IF_

AGC

CT28

1

000pF

GND

GND

GNDGND

DT1

BAV99-BR

GND

12345

RF

GND

GND

GND

GND

RFT1

T-14.5

259-F14.5-LHD

NC/ESD

NC/ESD

LT4 SDCL1005CR33JTDF

LT3

33nH

LT6

33nH

LT2

HQ1005C8N2JT

C

T10

5.6pF

GND

CT17

1000pF

CT24

NC/120pF GND

LT9

NC/SDCL1005CR33JTDF

CT34

33pF

GND

GND

CT16

NC/1.8pF GND

V

DD_

3P3_

1

1

LNA_

INP

2

LNA_

INN

3

V

DD_

1P8_

1

4

A

GC_

2/GPO3

5

A

GC_

1

6

IF_OUTN_2/GPO_1 7

IF_OUTP_2/GPO_2 8

IF_OUTN_1 9

IF_OUTP_1 10

VDD_3P3_2 11

VDD_1P8_2 12

VDD_1

P2

13

GND_D

IG

14

VDD_1P8_322

GND_XTAL21

XTAL_P20

XTAL_N19

CLK_O

UT

18

SD

A

17

SCL

16

VDD_

IO

15

AS24

RESET_N23

PADGND25

UT2

MxL661

YT1

16MHz

RT 12

120nH

RT 10

120nH

C T 18

10pF

IF_AGC

RT 21

0ohm

RT 18

10Kohm 3V

3_T un

TDA_IF_AGC

GND

C T 27

0.1uF-16V

C T 32

0.1uF-16V

C T 21

NC /56pF

C T 22

NC /56pF

GND

GND

VIFM

VIFP

L T 10

NC /680ohm

IFP

IFN

C T 19

0.22uF-16V

M_SDA

M_SCL

3V3_T un

RT 14

4K7ohm

RT 15

4K7ohm

RT 16

100ohm

RT 17

100ohm

T UNE R_SDA

T UNE R_SC L

C T 25

10uF-6.3V

3V3_T un

C T 3

0.1uF-16V

GND

C T 13

NC /1uF-6.3V

FB9

FC M100

5KF

3V3_ST B

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SD1

FAULT2

LINP3

LINN4

GAIN05

GAIN16

AVCC7

AGND8

GVDD9

PLIMIT10

RINN11

RINP12

NC13

PBTL14

PVCCR 15

PVCCR 16

BSPR 17

OUTPR 18

PGND 19

OUTNR 20

BSNR 21

BSNL 22

OUTNL 23

PGND 24

OUTPL 25

BSPL 26

PVCCL 27

PVCCL 28

UA1

TPA3110LD2PWPRCA24

1uF-25V

CA15 1uF-10V

RA1112Kohm

CA18 1uF-10V

CA25

1000pF

CA3

1000pF

GND

GND

CA7

0.22uF-16V

CA22

0.22uF-16V

CA13

0.22uF-16V

CA120.22uF-16V

GND

GND GND

GND

LOUT+

ROUT+

AMP_MUTE/

AVCC

R A8 4 7K oh m

AVCC

GND

GND

GND

GND

GND

RA21

100ohm

RA10

100ohm

5V_M

CA9NC/1000pF

CA11

0.47uF-16V

CA14NC/1000pF

CA19

0.47uF-16V

CA6 0.22uF-16V

CA8 0.22uF-16V

CA20 0.22uF-16V

CA21 0.22uF-16V

CA4

NC/1000pFCA50.47uF-16V

CA10

NC/1000pFCA17

0.47uF-16V

RA110ohm

CA28

0.1uF-50V

CA2

1uF-25V

LOUT-ROUT-

RA6220ohm

RA7

220ohm

CA271000pF

CA291000pF

15V_IN15V_IN

15V_IN

AMP-L1

AMP-R1

RA31

100ohmRA50

4K7ohm

GND

A MP -M UT E A MP _M UT E/

LA1

SCD54TL-220M

LA2

SCD54TL-220M

LA3

SCD54TL-220M

LA4

SCD54TL-220M

1234

RSPK

Rout-

LSPK

Lout-

CN20

4PIN-2.54-D-H-G-B

AMPVCC12V

RA90ohm

GND

CA49

0.1uF

CA43

NC/10uF

+EA4

470uF-25VDA1

NC/SK34A-SMA-F +EA3

NC/470uF-16V

1

2

35

4

7

6GND

RIN

RSPK

ERO

ELO

LSPK

LIN

AV10

PJ-339

PH-ALOUT

PH-AROUT

PH-DET

5V_M

5

V_

M

5

V_

M

PH-EN/

CA40

1uF-6.3V

CA41

1uF-6.3V

CA42

1uF-6.3V

CA39

1uF-6.3V

CA31

1uF-6.3V

CA56

0.1uF-16V

CA32NC/1000pF

CA35NC/1000pF

RA24

NC/4K7ohm

RA25

NC/4K7ohm

CA34 0.22uF-16V

CA36 0.22uF-16V

CA37 0.22uF-16V

CA38 0.22uF-16V

R31

1Kohm

R30

1Kohm

INL-1

INL+2

INR+3

INR-4

OUTR 5

G06

G17

HPVSS

8

GPN 9

PGND

10

CPP 11

HPVDD

12

EN13

AVDD

14

SGND

15

OUTL 16

GND 17

UA2TPA6132A2RTER

C13

NC/10uF-10V

AMP-L1

AMP-R1

GND

RA20

100ohm RA17

4K7ohm

PH_EN PH-EN/

PH-ALOUT

PH-AROUT

R14 22ohm

R18 22ohm

PH-DET/PH-DET RA15

1Kohm

RA42

20Kohm

5V_M

RA14

33Kohm

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HDMI-CEC

RH1 4

2 2 0 oh m

HDMI 1 _5 V

RH3

1 Koh m

QH1

LMBT3 9 0 4 LT1 G

RH2

1 0 Koh m

RH1

1 0 Koh m

HDMI 1 _5 V

HOTPLUG1'

HDM

I 1 _5 V

HOTPLUG1

RH5

1 0 Koh m

RH4

1 0 Koh m

HDMI1_SCL/

HDMI1_SDA/

GND

GND

GND

GND

GND

HDMI1_5V

CEC

HOTPLUG1

HDMI1_SCL/

HDMI1_SDA/

HDMI1_SCL

HDMI1_SDA

GND

RH4 3 1Kohm

QH2

LMBT3 9 0 4 LT1 G

RH4 2

1 0 Koh m RH

4 1 10Kohm

HDMI 3 _5 V

HOTPLUG3'

HDMI 3 _5 V

HOTPLUG3

RH4 5

1 0 Koh m

RH4 4

1 0 Koh m

HDMI3_SCL/

HDMI3_SDA/

HDMI 3 _5 V

GND

GND

GND

GND

GND

HDMI3_5V

CEC

HOTPLUG3

HDMI3_SCL/

HDMI3_SDA/

RH7

3 3 oh m

RH6

3 3 oh m

HDMI3_SCL

HDMI3_SDA

GND

HDMI1_RXC_N

HDMI1_RXC_P

HDMI1_RX0_N

HDMI1_RX0_P

HDMI1_RX1_N

HDMI1_RX1_P

HDMI1_RX2_N

HDMI1_RX2_P

HDMI3_RXC_N

HDMI3_RXC_P

HDMI3_RX0_N

HDMI3_RX0_P

HDMI3_RX1_N

HDMI3_RX1_P

HDMI3_RX2_N

HDMI3_RX2_P

RH1 6

3 3 oh m

RH1 5

3 3 oh m

HDMI_ARC

1 2 3 4 5 6 7 8 9 1 0

1 1

1 2

1 3

1 4

1 5

1 6

1 7

1 8

1 9

20

HPD

HDMI

+5V

GND

SDA

SCL

ARC

CEC

RXC-

GND

RXC+

RX0-

GND

RX0+

RX1-

GND

RX1+

GND

RX2+

RX2-

212223

GND

GND

GND

GND

AV1

1 6 1 0 3 1 0 4 1 (

SPC C )

CEC

C H1 3

0 .1 uF-1 6 V

C H1 2

0 .1 uF-1 6 V

1 2 3 4 5 6 7 8 9 1 0

1 1

1 2

1 3

1 4

1 5

1 6

1 7

1 8

1 9

20

HPD

HDMI

+5V

GND

SDA

SCL

ARC

CEC

RXC-

GND

RXC+

RX0-

GND

RX0+

RX1-

GND

RX1+

GND

RX2+

RX2-

2122

23

GND

GND

GND

GND

AV3

1 6 1 0 3 1 0 4 1 (

SPC C )

GND

C H

8

0.1uF-16V

C H9

0.1uF-16V

GND

GND

HDMI-ARC

HDMI_ARC

C H1 4 1

uF-6 .3 V

RH5 6

2 2 Koh m

R

H5 5

3

3 Koh m HD

MI3_DET

HDMI3_5V

AVDD5 V_C D

RH2 7

3 3 oh m

HOTPLU

G2'

HOTPLUG2RH

2 5

1 0 Koh m

RH2 4

1 0 Koh m

HDMI2_SCL/

HDMI2_SDA/

GND

GND

GND

GND

HDMI2_5V

CEC

HOTPLUG2

HDMI2_SCL/

HDMI2_SDA/

RH3 1

3 3 oh m

RH3 0

3 3 oh m

HDMI2_SCL

HDMI2_SDA

GND

HDMI2_RXC_N

HDMI2_RXC_P

HDMI2_RX0_N

HDMI2_RX0_P

HDMI2_RX1_N

HDMI2_RX1_P

HDMI2_RX2_N

HDMI2_RX2_P

1 2 3 4 5 6 7 8 9 1 0

1 1

1 2

1 3

1 4

1 5

1 6

1 7

1 8

1 9

20

HPD

HDMI

+5V

GND

SDA

SCL

ARC

CEC

RXC-

GND

RXC+

RX0-

GND

RX0+

RX1-

GND

RX1+

GND

RX2+

RX2-

212223

GND

GND

GND

GND

AV2

1 6 1 0 3 1 0 4 1 (

SPC C )

C

H1 8

NC /0 .1 uF-1 6 V

C H1 6

NC /2 2 pF

C H1 7

NC /2 2 pF

MHL_CD_SENSE

RH1 0

1 0 0 oh m

MHL_CABLE-DET

MHL_CD_SEN

SE

C H1 5 0.1uF-16V

RH2 9

1 0 oh m

HDMI 2 _5 V

AVDD5 V

_MHL

MHL_CD_SENSE

GND

HDMI 2 _5 V

RH1 2

4 7 Koh m

C H6

10uF-10V

5 V_STB

HDMI 2 _5 V

RH5 9

0 oh m

5 V_STB

AVDD5 V_C D

RH6 0

NC /0 oh m

GND

Vout

1

GND 2

I set

3

EN

4

Vin

5

UH1

AP2171WG-7

RH1 3

NC /NC /6 K8 oh m

RH2 0

1 0 Koh m

SENSE

SENSE

GND

RH1 1

300Kohm

GND

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7-2 . Wiring Connection Diagram

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Chapter 8. Measurements and Adjustments

8-1. Service Mode

8-1-1.How to enter into Service Mode

The way to the factory mode menu:

Step 1: Press Menu,

Step 2: Press 8893,

System will be into the factory mode menu when 2 steps above are done.

At the end of the main factory menu, you can see the edition of the software,

like this" BUILD TIME 20140120 14:33:23

VERSION v1.0 .

8-1-2.How to exit

If you want to exit this factory menu, please press the button Exit on the remote.

system will be out the factory mode menu.

8-2. Measurements and Adjustments

8-2-1. The Main Menu

In factory mode menu,press up/down

button to choose the up/down item,press

right or OK button to the submenu.press

MENU button to go back.

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8-2-2. GENERAL SETTING

1)Init Flash;

2)Uart Enable:Choose on or off in Uart Enable;

3)Dbg Message Enable: Choose on or off in

Dbg Message Enable;4)Test Pattern: Choose the Pattern picture;

5)Dynamic Contrast: Choose on or off in

Dynamic Contrast;

6)Power On Mode:Choose on or off in Power

On Mode;

7)Mirror Control: Choose on or off in Mirror

Control;

8)Front End Status

9)Timer Test

10)SSC

11)Erase Flash12)PQ Advance Debug: Choose on or off in

PQ Advance Debug;

13)Factory remote:Open or close the

Factory remote;

14)Factory CH Export.

8-2-3. PICTURE

Adjust the Picture Mode,Picture Curve,

White Balance and OverScan in different

source.

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8-2-4. SOUND

Adjust the values of Sound Mode,

Volume Curve,Audio Output and True Volume

in different source.

8-2-5. Panel Setting

1)LVDS Bit Mode:choose the Bit;2)LVDS MAP: choose the MAP;

3)LVDS ODD/Even: choose ODD or Even;4)Bcaklight:Adiust the value of backlight;

5)Reset Panel Setting Date6)6MX0 LVDS Map:choose the 6MX0 LVDSMAP;

7)6MX0 Channel:choose the 6MX0 Channel;8)6MX0 Mirror:choose the 6MX0 Mirror;

9)6MX0 Demo:choose the 6MX0 Demo;10)6MX0 Update.

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8-3. Software Update

8-3-1. MSD3393LU software update

1. Copy the software files to a USB disk on the root directory;

2. Insert the USB disk when the AC power is off;

3. Turn on the AC power in turn to begin;

4. Turn off the AC power until the indicator light fast twinkling;

5. Pull out the USB disk and power on the television.

Note:Do not turn off the TV while it is updating.

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No picture/ No sound

Verify if the television is properly plugged

Verify if the television is properly supplied power

Verify if electricity is available.

Blank screen

Verify if correct signals are input

Press SOURCE button to change signal input to TV

input

Restart the television of power supply is interrupted

No sound

Press the MUTE button and verify that Mute mode is

active.

Switch to another channel to check whether the same

problem occurs.

Press the VOL+ button to see if the problem can be

solved.

Poor soundVerify that the sound system is correct. Refer to the

user manual for instructions on how to adjust it.

No picture on some channelVerify if correct channel is selected.Adjust the antenna.

Make adjustments by Fine Tune and MANUAL Scan.

No color for some channel

program (black and white)

Verify that the same problem exists on other channels.

Check the picture and sound systems.

Refer to the relevant instructions in the manual to

adjust the colour.

Spots with some or all pictures

Verify if the antennal is correctly connected.

Verify if the antennal is in good condition.Make fine adjustment of channel.

Television is not working

Disconnect the television from the power supply for10 seconds, then reconnect the television. If the

problem persists, contact an authorised after-sales

service provider for technical assistance.

Television out of control

Disconnect the television from power supply and 10

seconds later, connect the television to the power

supply. If the problem still exists, contact authorized

after-sales service for technical assistance.


Chapter 9. Trouble shooting

9-1. Simple check

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9-2. Mainboard IC Introduction

Top view

36

1

2

3

4

56

7

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Bottom view

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1.MainchipMSD3393LU(U1)

2.Audio AmplifierTPA3110D2PWPR(UA1)

3.Main Flash MemoryGD25Q32BSIG(UF1)

4.DC/DC convertor 5V-1.8V for MSD3393LU (U1)LC1117CLTRAD(UL2)

5.voltage convertor 5V to 3.3V_STB LC1117CLTR33(UL1)6.voltage convertor 5V to 1.15V_STB LC3406CB5TR(UD1)

7.voltage convertor 12V to 5V_STB MP1470GJ-Z(UD3)

8.Tuner SDCL1005CR33JTDF(RFT1)

Please check the Schematic Diagram for the particular support

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9-3. Mainboard Failure Check

No picture but have sound

Check the power output No Change the Power Board

Yes

Check the CN2 (BLO)

Backlight on/off

Yes

No

Theres something wrong

with FRC

Verify if the DC/DC

convertor can output the

right Voltage,

NoChange the corresponding

DC/DC

QB3 output 5V

YesNo

Verify if QM1

output

Changethe QM1

Yes Still having

problemsChange Panel

Change LVDS wire

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you connect.


No sound but have picture

Verify if the speakers are

broken

No

YesChange the speakers

Verify if the main board has the

right input ,according to the source

TV/COMPONENT/AV/VGA/HDMI etc.

Yes

Verify if UA1 has the right

output

Yes

Check CN17 input is right

No

No

Check the corresponding audio

input circuit you connect.

Verify if UA1 has the right power in

No

Change UA1

Still having problems Change Mainboard

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No sound No picture

No

Verify if the Power has

5Vstb output

Yes

Change the

Power supply

Verify if CN4 Pin3/4 has 5V

input

Yes

Verify if CN2 Pin1 has 12V

input

Yes

Verify if DC/DC convertors have

the right output

Yes

No

No

No

Change Power board

Change Power board

Change corresponding

DC/DC convertor

Still having Change

Change the software

41

Problems Mainboard

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Poor sound

Poor sound

Verify if sound system is

correct .

NoChange sound

system

For ease of use, recommend that customer format the picture and

sound settings in the automatic option.

Still having

problems

Updata the software andmake the reboot; or

change the maiboard

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No color for some channel program (black and white)

No color for some chann

el program (black and w

hite)

Verify if the same

problem exists in otherchannels

Yes

check out of picture

and sound system

No

No

Check out of picture and soundsystem of this channel

Change the channel to the right sound

system (PAL-BG SECAM/L)

Yes

Refer to relative

instructions in the

Manual for color adjust

Updata the software andStill having

problems

43

make the reboot; or

change the maiboard

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How to know whether the Power board is broken?

Check if the power cord co

nnect well?

Yes

Check if the Power board

output 5V and 12V ?

No

No

Reconnect the power cord with the

outlet or Power board.

Replace the Power board pls.

Still havingproblems

Check if Main board / LVDS wire / Panel are in

good condition

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art

BlockDefect:TCPcrackingorcracking

DimorL/D:TCPSunken

:TCPleadcracking

:ACFbondingshort

:Awfulenvironmentand

somethingelectricente

r

intoLCD

:Mis-alignbetweenTCP

and

Panel

:Panelfailure

:TCPfailure

ame

escrpto

n

enomena

a

urec

ause

VB/D

Verticalbar

VDim

Vertalgrayline

VL/D

Verticalcolorline(lig

htor

darkforever)

TCP

HB/D

Horizontalbar

HDim

Horizontalgaryline

HL/D

Horizontalline(lightor

darkforever)


9-4. Pannel Failure

Failure Mode

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escrpton

enomena

a

ure

ause

Brightdotdarkdotinp

annel

IncomingInspectionStandard

BladderinPolariz

er

BladderbetweenPolarizera

nd

topglass

PolarizerScratc

h

Tineorrigidityarose

EyewinkerinsidePola

rizer

EyewinkerinsidePolarizer

AbnormalDispla

y

Brightanddarkdisplayalt

ernately

1.C

hiploseaction

2.I

Cahortorjointiogbad

3.Pannelandvscconnectbad

art

ame

DotDefect

PolarizerBubble

PanelorPolarlzer

PolarizerScra

tch

F/insidePolarizer

AbnormalDisp

lay

Circuit

Flashing


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Pa

rt

Name

Description

Phenomena

FailureCause

WhiteScreen

B/Lnormal,

onlywhitescreendisplay

MaybecausedbysurgecurrentandEDS

BlackScreen

B/Lnormal,

onlyBlackscreendisplay

Circ

uit

Crosstalk

FIIcker

LCD

Vcomimbalance

AbnormalColor

Only

colorabormal

Capacita

nce

improperbringcrosstalkinsideLCDpannel

AbnormalColor

Only

colorabnormal

1.C

hip

loseaction

2.I

Cshort

orjointionbad

3.Pannela

ndvscconnectbad


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Description

Caused

byMechanicanoiseofbacklightunit

Part

Name

Phenomena

Failurecause

Mechanlcal

Nolse

When

turnpanel,appearcacophony

Ripple

Connectriccircle

C

auseedby

b

etween

mechanismandpannel

B/Loff

B/Lloseaction

*

Connect

b

adness

betweenwireandelectrode

B/Ldark

B/L

brightnessdarkerthan

normal

*

Connect

badnessShortbetweenwireandelectrode

B/L

wiredamaged

Withoutbacklight

B/L

wiredamaged

B/Lwireopen

O

peration

a

bnormal

orsystemicnoise

O

peration

a

bnormal

orsystemicnoise

Shortbitweenlamphousingandwire,

Bec

ause

co

nsumepowertoomuch

B/Lshutdown

B/L

shutdowninsometime

F/M

F/M

inB/L,w

hite,balckRotundity

orwirelike

F

/MinB/Lunit


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Part

Name

Description

Phenomena

FailureCau

se

Lightleakage

B/Lunitbadness

Brig

htness

atbottomofLCMbrighter

than

normal

M

echanlcalorB/L

B/Lbrightnessasymmetric

Uniformity

SheetinB/Lunitisuneven

Mounthole

Lack

screw

orscrew

damage

*Lackscrew

Screwdamage


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Sincere Forever

Haier GroupHaier Industrial Park, No.1, Haier Road

266101, Qingdao, China

http://www.haier.com

Date post:	21-Feb-2018
Category:	Documents
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