Haier 32D3005B Schematic

SERVICE MANUAL

LED TV

Model No. 32D3005

MSD3393LU

Chassis

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.

©2013 Qingdao Haier Electronics Co., Ltd.

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

Service Manual

Model No.: 32D3005

CONTENTS

Chapter 1. General Information

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

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

1-3. Important Notice.........................................................................3

1-3-1. Follow the regulations and warnings ..................................................... 3

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

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

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

1-3-5. Use the genewing parts (specified parts) .............................................. 4

1-3-6 Safety check after repairment................................................................. 4

1-3-7. Ordering Spare Parts............................................................................. 6

1-3-8. Photo used in this manual .....................................................................6

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

Using icons ...............................................................................................................6

Chapter 2. Specification

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

2-2. External pictures (four faces)....................................................9

Chapter 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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Model No.: 32D3005

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 ............................................................................31

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

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

8-2. Measurements and Adjustments ............................................31

8-2-1. The Main Menu ....................................................................................31

8-2-2. General Setting ....................................................................................32

8-2-3. Picture ..................................................................................................32

8-2-4. Sound................................................................................................... 33

8-2-5. Debug...................................................................................................33

8-3. Software Update ......................................................................34

8-3-1. 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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Service Manual

Model No.: 32D3005

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.

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

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)

This symbol indicates that there are important operating and maintenance instructions

in the literture accompanying the appliance.

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

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

3

Service Manual

Model No.: 32D3005

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 be
used 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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Service Manual

Model No.: 32D3005

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 non­abrasive applicator; 10% (by volume) Acetone and 90% (by volume) isopropyl alcohol (90%-99%
strength).

CAUTION: This is a flammable mixture.

Unless specified otherwise 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 fixture ground 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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Service Manual

Model No.: 32D3005

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

classified as "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 icons

Icons 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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Service Manual

Model No.: 32D3005

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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Service Manual

Model No.: 32D3005

Chapter 2. Specification

2-1. Specification list

8

Model 32D3005

Screen Size 32"

Aspect Ratio 16:9

Resolution 1366x768

Brightness (cd/m²) 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 NTSCǃATSC

Audio System MN

Audio Output Power (Built-in) (W) 8W×2

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

Service Manual

Model No.: 32D3005

2-2. External pictures (four faces)

Front Side

Up Side

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Model No.: 32D3005

Right Side

Back Side

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Service ManualModel No.: 39D3005

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

1.Remove the fifteen screws indicated with red
circles.

2. Flip machine, panel side up.

3.Carefully raise the Front shell from

bottom.

Remove the speaker directly

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Model No.: 32D3005

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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Model No.: 32D3005

Chapter 4. Location of Controls and Components

4-1. Board Location

B Panel

A Board

13

No. Parts number Description

A Board power-main board

B Panel LCD Panel

DH1TKPM0002M

712-315E7-X6251

Service Manual

Model No.: 32D3005

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

IR & Key Interface
CN6

Pin number Signal name

1
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

14

GND

LED Backlight interface
CN804/CN805

Pin number Signal name

1

2

3

LED+

NC

LED-

Speaker connector CN20

Pin number Signal name

1

2 ROUT-

3 LOUT-

4 LOUT+

ROUT+

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Model No.: 32D3005

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Service Manual

Model No.: 32D3005

4-3. LCD Panel

32D3005

Backlight Unit

16

LVDS CONNECTOR CNF1

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Model No.: 32D3005

17

Service Manual

Model No.: 32D3005

Chapter 5. Installation Instructions

5-1. Accessories

Remote Control

Batteries

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Service Manual

Model No.: 32D3005

5-2. External Equipment Connections

Antenna Connection

Connect your aerial to the back of the TV into the
ANTENNA 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

You can use your TV as a monitor for your personal
computer by connecting it with a VGA cable (not
supplied).

Read your computer user guide and check it has a

A

VGA connector.

Turn off your TV and PC.

B

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

C

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
VGA connectors and connect the audio cable (not
supplied) to the audio input socket on the back of the
TV.

Turn on the TV firstly and then the PC.

D

Press the Source button on the TV or TV remote

E

control to set the video input mode to PC.

Once the image shows, if there is noise present,

F

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 or VCR to
Your 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

A

Connect the cable from the HDMI device to the TV
HDMI socket.

Press the SOURCE button to select HDMI mode.

B

Refer to the HDMI device user guide for how to

C

operate.

Connect a DVD Player to Your TV

Connect the DVD video outputs (Y, Pb, Pr) to the
COMPONENT (Y, P

Turn on the DVD player and insert a DVD disk.

A

Press the SOURCE button to select COMPONENT

B

mode.

Refer to the DVD player user guide for operating

C

instructions.

b, Pr) IN socket on your TV.

19

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Model No.: 32D3005

Chapter 6. Operation Instructions

6-1. Front Panel Controls

1 POWER

2 CH-

3 CH+

4 VOL-

Press to turn the TV on and off.

TV channel down.

TV channel up.

Press to decrease

the volume.

5 VOL+

6 MENU

7 INPUT

Press to increase

Press to select the main menu.

Press to select the input source.

the volume.

20

6-2. Back Panel Controls

1 2 3 4 5 6 7 8

9 10 11 12

1 Earphone
2 Coax output

Audio in

3

4 Video/Y in input
5 PbPr IN
6 PC Audio input
7 VGA
8 RF
9 HDMI1
10 HDMI2(MHL)
11 HDMI3(ARC)
12 USB IN

output

input

input

input
input
input
input
input
input

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Model No.: 32D3005

21

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Service Manual

Model No.: 32D3005

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 13
14 16

15 17
18 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
CHġ/CHĢ: 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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Service Manual

Model No.: 32D3005

Chapter 7. Electrical Parts

7-1. Circuit Diagram

PCB101B

SGND

L

RB141

RB142

RB143

BRO

CB111

SGND

1

2

BRO

!

CB103

RB104

3 4

3 4

!

NC

SGND

UB101

GND

COMP

OTP3CS

PCB102B

Vbridge

S

RB101

RB102

6

OUT

5

VCC

4

CB101

SGND

EB1

RB117

CB114

SGND

RB106

RB107

QB102

RB108

VCC

RB105

2

DB105

113

EB107

CB102

RB119RB120

RB123

RB109

DB106

RB121RB122

BB101

AK

RB112

RB148

RB111

SGND

!

GNDSGND

CYB3

RB118

QB101

RB110

2

ZB101

3

CB116

DB104

SGND

RB124

RB144

RB125

RB145

RB126

RB146

RB127

RB147

NC

4

4

5

5

5

2

2

2

189

1 8

1910

RB115

CB113

RB116

!

PCB101A

UB102

NC NCNC

10

1074

RB128
RB129
RB130

1

7

6

BB102

3

9

DB101

12V

RB131

12

RB132 RB135

!

CB109

KA

CB110

R

A K

DB102

A K

DB103

RB137 RB134

TB101

RB113

RB114

AK

EB106

CB118

VBL

RB140

EB104EB105

GND

CB117

2

GND

RB133

NC

12V

EB101

CNB2

4

12V

3
2

1

12V

GND

OVP CIRCUIT

12V

2

2

113

3

12

PCB102A

NC

GND

RB138

ZB102

NC

!

NC

RB139

NC

LED-SHORT LED-SHORT

VCC_Panel

VCC_Panel

PWM-DIM

PWM-DIM

PWM-REF

PWM-REF

VCC_Panel

RB816

12V

DB803

CB801

GND

RB828

GND

RB812

LB803

6
2 5

LB802

VBL

LB801

GATE

PWM-DIM

GND

GND

RB809

RB803

LED-FB

OVP

RB806

PIN4

EMI

QB809

HSB6

HS

1

1

RB807

2

2

DVCC

PWM

OVP

CB812

RB801

PIN8

CB807

8

7

RB802

6

PIN7

PIN6

5

FB

RB804

DB807

PIN7PIN1

CB806

PIN5

RB805

CB804

GND

UB801

PIN1

1

VIN

2

GATE

GATE

3

GND

COMP

4

CS

PIN4

CB803

CB805

RB827

CB802

GND

RB822

QB804

CB810

RB813

DB801

NC

BB801

NC

HSB5

HS

1

2

NC

1

2

QB801

D

G

S

RB808

RB821

NC

RB820

GND

RB814

RB815

CB809

RB810

RB811

LED-SHORT

QB802

RB819

GND

OVP

LED1 LED2LED3 LED4

BB802

NC NC

EB801EB802EB803

GND

DB805 DB806

CB813

RB826 RB825

LED-FB

LED+

EB804

DVCC

CNB801

RB823 RB824

B

CNB804

123

LED+

12345

LED1 LED2

NC NC

CNB806

LED+ LED-FB

LED1 LED2 LED3 LED4

RB834 RB835

C

C

C

B

RB830

E

AK

QB806

RB851

RB837

RB838

12345

LED1 LED3

LED4
LED3
LED2
LED1

B

QB807

E

E

RB831

RB832

RB852

NC

RB839

RB840

RB841

CNB802

1

2

CNB807

10

QB805

RB850

NC

DB804

GND

CNB805

LED3 LED4LED+ LED+

1234567

B

LED-FB

CNB803

2

LED+LED+

QB808

1

123456789

LED+

C

E

RB833

RB853

DBT1

3V3_STB

123

CNT1

PWM-DIM

PWM-REF

NCNCNCNC

LED-SHORT

CNB1

T3.15AL 250VAC

!

L

N

14

23

1

3

!

LCB1

!

FB1

! !

!

!

!

RB1

RB2

S

RB3

CXB1

CXB2

RB4

CXB3

NC

! !

!

!

!

NTCB1

CYB1

CYB2

LCB3

1

4

!

GND

MOVB1

LCB2

3 2

4 1

2

3

NC

!

NC

SGND

L

DB1 DB2
DB3 DB4

Vbridge

470uF-16V

12V

C1

+

E1

0.1uF-16V

10uF-16V
C56

UD3
MP1470GJ-Z

RD5

100Kohm

PWM-DIM

RB9

RD4

0ohm

0.1uF-16V

CD11

6

3

BS

IN

SW

5

EN

FB

GND

1

C22
10pF

SCD54TL-4R7M

LD2

2

4

RD24
100Kohm

RD9
18Kohm

C2

RD8
3K3ohm

C57

0.1uF

10uF

5V_STB

+

E2

470uF

PWM/ADJ PWM-DIM

1Kohm

3V3_STB

RE2

4K7ohm

10Kohm

POW_EN

RE4

10Kohm

RE5

LMBT3904LT1G

QE2

TEST

PWM-DIM

WPM2341A-3/TR

5V_STB 5V_M

QM32

CM31

RM34

0.1uF

100Kohm

GND

CM32

0.1uF

GND

UL2

CL4

5V_M

10uF-10V

GND

CL5

0.1uF-16V

LC1117CLTRAD

VI3VO

VO

ADJ

1

2

4

RL1

RL2

330ohm

150ohm

CL6

0.1uF-16V

GND

1V8_DDR

CL7

10uF-6.3V

CL19

NC/22uF-6.3V

GND

5V_STB

C8

NC/10uF-10V

CL1

5V_STB

CD1

10uF-10V

0.1uF-16V

CD2

0.1uF-16V

GND

UL1
LC1117CLTR33

VI3VO

VO

ADJ

1

GND

4

RD1

1

10Kohm

2

4

CL3

UD1

M3406-ADJ

SW

VIN

EN

FB

GND

2

GND GND

0.1uF-16V

3V3_STB

CL11

10uF-6.3V

LD1

3

SCD54TL-6R8M

5

12K4ohm

RD3

13Kohm

RD2

POW_EN

RM4

3Kohm

LED-SHORT

100ohm

RM7

1K5ohm

GND

RM5

PVCC

RM1

4K7ohm

GND

RM3

200Kohm

QM2

LMBT3904LT1G

WPM3407C-3/TR

NC/0ohm

R12V

QM1

R5V

PVCC5V_STB

PVCC12V

CM6

10uF-16V

VCC_Panel

CM2

0.1uF-16V

GND

0ohm

1.15V_STB

1.15V_STB

CD4

CD3

22uF-6.3V

TEST

CD5

0.1uF-16V

10uF-6.3V

3V3_STB

3V3_STB

U1

MSD3393LU

HDMI2_RX1_N
HDMI2_RX1_P
HDMI2_RX2_N
HDMI2_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
VGA_HS
VGA_BIN
VGA_GIN
GIN0M
VGA_RIN
VGA_VS

HD1_Pb
HD1_SOG
HD1_Y
GIN1M
HD1_Pr

VCOM

1.15V_STB
+3_3V_AU

C3

PC_RIN
PC_LIN

AU_VAG
AU_VRM

10uF-6.3VC40.1uF-16V

FB5

FCM1005KF

1
2
3
4
5
6
7
8

9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38

GND

129

E-PAD

RX1N_B
RX1P_B
RX2N_B
RX2P_B
AVDD_MOD
RXCN_A
RXCP_A
RX0N_A
RX0P_A
RX1N_A
RX1P_A
RX2N_A
RX2P_A
HSYNC0
BIN0P
GIN0P
GIN0M
RIN0P
VSYNC0
AVDD3P3_ADC
BIN1P
SOGIN1
GIN1P
GIN1M
RIN1P
VSYNC1
CVBS1
CVBS0
VCOM
CVBS_OUT1
VDDC
AVDD_AU33
AUR0
AUL0
AUR1
AUL1
VAG
VRM

HDMI2_RXC_N

HDMI2_RXC_P

HDMI2_RX0_N

HDMI2_RX0_P

128

39

HDMI1_RX1_P

HDMI1_RX2_N

HDMI1_RX2_P

123

125

124

122

126

127

RX0P_B

RX2P_D

RX1P_D

RXCP_B

RX0N_B

RX2N_D

RXCN_B

AUR440AUOUTL3

AUOUTL043AUOUTR3

AUL4

45

41

42

GND

MHL_CABLE-DET

HDMI2_SCL

HDMI2_SDA

HDMI1_SCL

HDMI1_RXC_N

HDMI1_RXC_P

HDMI1_RX0_N

HDMI1_RX0_P

HDMI1_RX1_N

119

121

120

RX0P_D

RX1N_D

HOTPLUG2'

1.15V_STB

AVDD5V_MHL

118

115

117

113

116

114

RXCP_D

RX0N_D

RXCN_D

AVDD_5V

GND_EFUSE

VDDC/AVDDL_DVI

VIFP46VIFM47AUOUTR044IFAGC

XIN50AVDD3P3_DMPLL49XOUT

AVDD_MOD

AVDD3P3_DADC

53

51

52

48

HDMI1_SDA

HDMI3_SCL

HDMI3_SDA

1V8_DDR

1.15V_STB

HDMI3_DET

112

111

110

104

106

109

108

103

105

107

SAR2

MHL_DET

DDCDB_CL

HOTPLUG_B

GPIO0/GPIO44

VDDC/DVDD_DDR_CMD54VDDIO_CMD

55

DDCDB_DA

GPIO1/GPIO45

56

DDCDA_DA

GPIO3/GPIO4758GPIO4/GPIO4859LVA3P

GPIO2/GPIO46

57

DDCDA_CL

60

DDCDC_CL

DDCDC_DA

GPIO5/GPIO49

61

VDDIO_DATA

AVDD_MOD

VDDC/DVDD_DDR_DATA

INT/GPIO64

DDCA_CK
DDCA_DA

HOTPLUG_A

HOTPLUG_C/D

LDE/LVB0M

LCK/LVB0P

AVDD_MOD

LVACKM

LVA3M62LVACKP

64

63

SAR1
SAR0

DP_P1

DM_P1

DP_P0
DM_P0
RESET

IRIN
CEC

TEST

ARC

SPI_CK

SPI_CZ
SPI_DI

SPI_DO

PWM0

PWM1

LVB1M

LVB1P

LVB2M

LVB2P

LVB3M

LVB3P

LVA0M

LVA0P

LVA1M

LVA1P

LVA2M

LVA2P

102
101
100
99
98
97
96
95
94
93
92
91
90
89
88
87
86
85
84
83
82
81
80
79
78
77
76
75
74
73
72
71
70
69
68
67
66
65

LED_RED

KEY

USB0_DP
USB0_DM
RESET_H

PH_EN

REMOTE
HDMI-CEC

UART-RX/DDC
UART-TX/DDC
HDMI-ARC
SPI_SCK
SPI_CSN
SPI_SDI
SPI_SDO
PWM/ADJ
BL_EN
HOTPLUG3'
HOTPLUG1'
RXO0_N
RXO0_P
RXO1_N
RXO1_P
RXO2_N
RXO2_P

RXO3_N
RXO3_P
RXE0_N
RXE0_P
RXE1_N
RXE1_P
RXE2_N
RXE2_P

3V3_STB

GND

C14

0.1uF-16V

GND

3V3_STB

3V3_STB

CL2

0.1uF-16V

AMP-LO

AMP-RO

1.15V_STB

CD7

0.1uF-16V

3V3_STB

GND

GND

CL10

R3

R4

1uF-6.3V

CD8

1uF-6.3V

FB2

FCM1005KF

CL12

1uF-6.3V

100ohm

100ohm

CD9

1uF-6.3V

CL17

CL13

CD10

0.1uF-16V

+3_3V_AU

GND

CL14

1uF-6.3V

R5

0.1uF-16V

200KohmR6200Kohm

0.1uF-16V

FB4

FCM1005KF

GND

1V8_DDR

CL16

3V3_STB

C5

CL8

1uF-6.3V

1uF-6.3V

GND

FB3
FCM1005KF

+3_3V_ADC

CL20

1uF-6.3V

1000pFC61000pF

CL9

1uF-6.3V

+3_3V_PLL

CL18

0.1uF-16V

GND

CL15

1uF-6.3V

AMP-L1

AMP-R1

RF12

CF16

3V3_STB

10Kohm

GND

NC/0.1uF-16V

GND

GND

GND

SPI_CSN

SPI_SDO

#F_WP

GND

RI7

RI37

68ohm

68ohm

1

2

3

CI7

0.047uF

CI10

0.047uF

UF1

CE#

SO

HOLD#

WP#

VSS4SI

GD25Q16BSIG

VDD

SCK

VCOM

GIN1M

8

7

6

5

SPI_SCK

SPI_SDI

AV_LIN

AV_RIN

CF7

AMP-LO

AMP-RO

3V3_STB

0.1uF-16V

GND

IF_AGC

VIFP

VIFM

+3_3V_ADC

+3_3V_PLL

M_SDA

XTALI

XTALO

1.15V_STB

1V8_DDR

3V3_STB

XTALI

XTALO

RXE3_P

RXE3_N

RXEC_N

M_SCL

PH-DET/

Y1

24MHz

RXEC_P

SPDIF_OUT

POW_EN

AMP-MUTE

NC/SGM810-SXN3L

QF1

CF1

33pF

CF2

33pF

GND

GND

R99

1Mohm

3V3_STB

CF17

NC/0.1uF-16V

GND

RF4

RF3

NC/1Kohm

NC/100Kohm

RESET_H

PWM/ADJ

BL_EN

R26 4K7ohm

R2 4K7ohm

GND

NC/AVLC18S02003

75ohm

GND

YPbPr_Pr

D6

RI33

AV19-03S-0020( )-

Pr

GND

6

GND

YPbPr_Pr

NC/AVLC18S02003

75ohm

GND

Pb

GNDYGND

YPbPr_Pb

D4

RI32

YPbPr_Pb

AV4

12345

YPbPr_Y

AVLC18S02003

GND

75ohm

HS_VGA

10Kohm

RV14

100ohm

GND

RV12

GND

VGA_HS

YPbPr_Y

D5

VS_VGA

10Kohm

RV13

UART-RX/DDC

100ohm

RV11

VGA_VS

100ohm

100ohm

RV18

VGA_SCL

VS_VGA

HS_VGA

13

14

15

SCL

HS

VS

GND

RXD5VDET

GND

10

GND

RI31

GND

75ohm

NC/10pF

RV3

GND

CV3

RV8

33ohm

RV2

75ohm

CV2

NC/10pF

RV7

33ohm

68ohm

4K7ohm

4K7ohm

UART-TX/DDC

RV16

VGA_SDA

12

SDA

DB15

GNDGGNDBGND

GND

RV6

RV17

5V_STB

RV15

AV7

WLHD-051A

11

TXD

1716

GND

R

162738495

RV1

75ohm

CV1

NC/10pF

RV4

33ohm

NC/AV2-8.4-84-Y( )-

L

GNDRGND

142

3

GND

AV_R

AV_L

NC/AVLC18S02003D8NC/AVLC18S02003

GND

12Kohm

GND

YPbPr_Pr

YPbPr_Pb

YPbPr_Y

0.047uF

0.047uF

CV8

VGA_BIN

GIN0M

CV6

0.047uF

CV7

VGA_GIN

PJ-325

RI34

RI38

RI36

33ohm

33ohm

33ohm

0.047uF

CI38

0.047uF

HD1_Pr

0.047uF

HD1_Pb

HD1_Y

1000pF

HD1_SOG

GND GND

12Kohm

CI8

CI9

CI36

12Kohm

CV20

AV3-8.4-06C( )- -JSL

AV6

GNDRGND

6

GND

AV_R

L

AV_L

AV18

COAX

GND

12345

GND

COAX

NC/10pF

100ohm

330pF

SPDIF_OUT

CF53

220ohm

RF52

0.1uF-16V

CF52

COAXSPDIF_OUT'

RF51

CF51

D7

GND

NC/AVLC18S02003

COAX

NC/0ohm

RF2

5V_M

AV_L

D9

GND

10Kohm

RI6

RI3

GND

12Kohm

AV_R

10Kohm

RI5

RI2

ERO

RSPK

LSPK

ELO

RV20 10Kohm

RV19 10Kohm

GND

RV21

RV22

0.1uF-16V

0.1uF-16V

PC_LIN

PC_RIN

NC/4PIN-2.0-D-H-G

GND

NC/100uF-16V

USB-042M-002DP

GND

GND

10uF-10V

NC/AIES12U020R2

GND

NC/AIES12U020R2

GND

12345

CV19

GND

6

GND

5

GND

AV8

123

CF41

DF41

DF42

USB_M

USB_P

EF1

+

GNDDMDP

4

USB_P

RF42 5R1ohm

0.047uF

CN15

4

USB_5V

5V

123

USB_M

USB_5V

RF41 5R1ohm

CV4

VGA_RIN

AV21

0.1uF-16V

AV_LIN

5

CI5

0.1uF-16V

CI6

NC/GQ-03-08

Vin1Vcc2GND3GND4GND

AV26

IR Transmitter

SPDIF_OUT'

AV_RIN

F2 NC/FSMD110

USB0_DP

USB0_DM

5V_M

RF43

0ohm

GND

TUNER_SCL

100ohm

RT16

M_SCL

0ohm

CT19

0.22uF-16V

GND

TUNER_SDA

100ohm

RT17

M_SDA

IF_AGC

10Kohm

RT18

RT21

TDA_IF_AGC

CT25

10uF-6.3V

0.1uF-16V
CT3

NC/1uF-6.3V

CT13

4K7ohm

RT14

4K7ohm

RT15

3V3_Tun

3V3_STB

FCM1005KF

FB9

3V3_Tun

3V3_Tun

GND

1.8VRF

3V3_Tun

RT1

CT4

GND

YT1

0.1uF-16V

750Kohm

CT1

UT2

MxL661

19

16MHz

20

21

22

23

1uF-6.3V

24

25

3V3_Tun

GND

GND

33pF

CT34

TUNER_SCL

16

SCL

33pF

3V3_Tun

CT12

15

VDD_IO

CT33

TUNER_SDA

18

17

SDA

CLK_OUT

XTAL_N

XTAL_P

GND_XTAL

VDD_1P8_3

RESET_N

AS

PADGND

VDD_3P3_11LNA_INP2LNA_INN3VDD_1P8_14AGC_2/GPO35AGC_1

LT1

CT9

1000pF

5.6pF

MGHB1005S102T-LF

1000pF

1.8VRF

33nH

GND

CT6

0.1uF-16V

CT8

GND

33nH

LT3

LT6

CT10

LT2

HQ1005C8N2JT

NC/1.8pF

CT16

CT17

1000pF

LT9

NC/SDCL1005CR33JTDF

CT24

0.1uF-16V

14

0.1uF-16V

CT11

NC/120pF

GND

GND_DIG

GND

GND

GND

1uF-6.3V

CT2

13

VDD_1P2

6

CT14

RT3

100ohm

TDA_IF_AGC

VDD_1P8_2

12

C78

VDD_3P3_2

11

CT15

IFP

3V3_Tun 1.8VRF

IF_OUTP_1

10

IF_OUTN_1

IF_OUTP_2/GPO_2

IF_OUTN_2/GPO_1

IFN

9

8

7

NC/0.1uF-16V

GND

1uF-6.3V

0.1uF-16V

GND

GND

NC/56pF

IFN

120nH

CT22

GND

0.1uF-16V

VIFM

RT10

CT32

120nH

CT21

NC/56pF

NC/680ohm

LT10

CT18

10pF

0.1uF-16V

IFP

VIFP

RT12

CT27

CT28

NC/ESD

1000pF

LT4

GND

RFT1

5

NC/ESD

DT1

GND

GNDGND

BAV99-BR

GND

SDCL1005CR33JTDF

RF

GND

GND

1

234

T-14.5×25×9-F14.5-LHD

GND

GND

GND

AMP-L1

AMP-R1

100ohm

RA21

RA10

100ohm

1000pF

1000pF

CA27

CA29

RA6

GND

RA7

220ohm

220ohm

5V_M

GND

GND

CA15 1uF-10V

CA18 1uF-10V

AMP_MUTE/

CA6 0.22uF-16V

CA8 0.22uF-16V

RA8 47Kohm

CA28

0.1uF-50V

CA21 0.22uF-16V

CA20 0.22uF-16V

RA11

RA50

4K7ohm

AVCC

AVCC

12Kohm

GND

RA31

AMP-MUTE AMP_MUTE/

100ohm

GND

RA1

10ohm

15V_IN

UA1

1

SD

2

3

4

5

6

7

8

9

10

11

12

13

TPA3110LD2PWPR

PVCCL

FAULT

PVCCL

LINP

LINN

GAIN0

GAIN1

AVCC

AGND

GVDD

PLIMIT

RINN

RINP

NC

PBTL14PVCCR

BSPL

OUTPL

PGND

OUTNL

BSNL

BSNR

OUTNR

PGND

OUTPR

BSPR

PVCCR

15V_IN

CA3

CA2

28

27

26

25

24

23

22

21

20

19

18

17

16

15

CA7

0.22uF-16V

CA12

CA13

0.22uF-16V

CA22

0.22uF-16V

CA24

1uF-25V

1000pF

1uF-25V

GND

SCD54TL-220M

15V_IN

CA25

SCD54TL-220M

SCD54TL-220M
SCD54TL-220M

1000pF

GND

GND GND

0.22uF-16V

GND

LA1

CA9

NC/1000pF

LA2

LA3

LA4

NC/1000pF

NC/1000pF

GND

NC/1000pF

CA11

CA14

CA17

RA9

DA1

NC/SK34A-SMA-F

CA4

0.47uF-16V

CA5

0.47uF-16V

CA10

0.47uF-16V

CA19

0.47uF-16V

0ohm

EA3

NC/470uF-16V

470uF-25V

EA4

+

+

NC/10uF

LOUT+

LOUT­ROUT-

ROUT+

AMPVCC12V

CA49

CA43

0.1uF

GND

CN20

4

LSPK

3

Lout-

2

Rout-

1

RSPK

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

PH_EN

RA20

100ohm

AMP-L1

AMP-R1

PH-EN/

RA17

4K7ohm

5V_M

CA31

CA56

C13

1uF-6.3V

0.1uF-16V

1uF-6.3V

OUTL

OUTR

GND

NC/10uF-10V

UA2
TPA6132A2RTER

16

5

NC/1000pF

11

CPP

CA39

9

GPN

17

CA42

1uF-6.3V

CA32

1uF-6.3V

R14 22ohm

R18 22ohm

CA35
NC/1000pF

PH-DET

PH-AROUT

PH-ALOUT

PH-ALOUT

PH-AROUT

AV10

1

GND

6

RIN

4

RSPK

2

ERO

3

ELO

5

LSPK

7

LIN

PJ-339

5V_M

RA42

20Kohm

RA15

1Kohm

RA14

33Kohm

PH-DET/PH-DET

14

10

CA34 0.22uF-16V

RA24

NC/4K7ohm

RA25

NC/4K7ohm

5V_M

5V_M

CA36 0.22uF-16V

CA37 0.22uF-16V

CA38 0.22uF-16V

GND

1

INL-

2

INL+

3

INR+

4

INR-

13

PH-EN/

EN

6

G0

7

G1

R31

R30

1Kohm

1Kohm

CA40

PGND

AVDD

HPVSS

HPVDD

SGND

8

12

15

CA41

1uF-6.3V

161031041( SPCC)

161031041(

AV1

AV2

GND

SPCC)

HDMI

23

GND

22

GND

21

GND

20

GND

HPD

+5V

GND

SDA

SCL

ARC

CEC

RXC-

GND

RXC+

RX0-

GND

RX0+

RX1-

GND

RX1+

GND

RX2+

RX2-

GND

23

GND

22

GND

21

GND

20

GND

12345678910111213141516171819

GND

HDMI2_5V

HOTPLUG2

CH18 NC/0.1uF-16V

CEC

HDMI2_SCL/

HDMI2_SDA/

RH31 33ohm

RH30 33ohm

HDMI2_SCL

HDMI2_SDA

GND

HDMI2_RXC_N

HDMI2_RXC_P

HDMI2_RX0_N

GND

HDMI2_RX0_P

GND

HDMI2_RX1_N

HDMI2_RX1_P

HDMI2_RX2_N

MHL_CD_SENSE

HDMI2_RX2_P

HPD

+5V

HDMI1_5V

HOTPLUG1

GND

GND

GND

CH13 0.1uF-16V

HDMI

SDA

SCL

ARC

CEC

RXC-

GND

GND

CEC

HDMI1_SCL/

HDMI1_SDA/

RH16 33ohm

RH15 33ohm

HDMI1_RXC_N

HDMI1_SCL

HDMI1_SDA

RXC+

RX0-

GND

HDMI1_RXC_P

HDMI1_RX0_N

RX0+

RX1-

GND

HDMI1_RX0_P

GND

RX1+

GND

HDMI1_RX1_N

HDMI1_RX1_P

GND

RX2+

RX2-

12345678910111213141516171819

GND

HDMI1_RX2_N

HDMI1_RX2_P

GND

NC/22pF

RH29 10ohm

HDMI2_5V AVDD5V_MHL

RH25 10Kohm

HDMI2_SCL/

AVDD5V_CD

RH24 10Kohm

HDMI2_SDA/

CH16

NC/22pF

CH17

RH27 33ohm

HOTPLUG2'HOTPLUG2

HDMI1_5V

RH5 10Kohm

HDMI1_SCL/

RH4 10Kohm

HDMI1_SDA/

GND

0.1uF-16V

QH1

LMBT3904LT1G

10Kohm

RH2

CH9

HOTPLUG1

10Kohm

1Kohm

HDMI1_5V

RH3

RH1

HDMI1_5V

HOTPLUG1'

0.1uF-16V

300Kohm

MHL_CD_SENSE

47Kohm

SENSE

RH12

CH15

100ohm

GNDRH11

RH10

MHL_CABLE-DETMHL_CD_SENSE

NC/NC/6K8ohm

RH13

UH1

GND

3

Iset

EN

4

SENSE

10uF-10V

10Kohm

RH20

161031041( SPCC)

AV3

HDMI2_5V

HPD

HOTPLUG3

+5V

HDMI3_5V

GND

GND

HDMI

SDA

SCL

ARC

CEC

RXC-

GND

GND

CEC

HDMI3_SCL/

HDMI3_SDA/

HDMI_ARC

RXC+

RX0-

GND

RX0+

RX1-

GND

RX1+

GND

RX2+

RX2-

12345678910111213141516171819

GND

GND

GND

RH60 NC/0ohm

RH59 0ohm

AVDD5V_CD

5V_STB

220ohm

CEC

RH14

GND

23

GND

22

GND

21

GND

20

GND

HDMI-CEC

RH7 33ohm

RH6 33ohm

CH12 0.1uF-16V

HDMI3_SCL

HDMI3_SDA

HDMI3_RXC_N

HDMI3_RXC_P

HDMI3_RX0_N

HDMI3_RX0_P

HDMI3_RX1_N

HDMI3_RX1_P

HDMI3_RX2_N

HDMI3_RX2_P

GND

0.1uF-16V

CH8

HDMI3_5V

CH14

5V_STB

1uF-6.3V

22Kohm

HDMI-ARCHDMI_ARC

RH56

5

Vin

GND

Vout

1

2

HDMI2_5V

GND

AP2171WG-7

CH6

RH45 10Kohm

HDMI3_SCL/

RH44 10Kohm

HDMI3_SDA/

LMBT3904LT1G

RH42

10Kohm

HOTPLUG3'

HOTPLUG3

QH2

10Kohm

1Kohm

RH41

RH43

HDMI3_5V

HDMI3_5V

RH55

33Kohm

HDMI3_DETHDMI3_5V

Service Manual

Model No.: 32D3005

7-2 . Wiring Connection Diagram

30

Service Manual

Model No.: 32D3005

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.

31

Service Manual

Model No.: 32D3005

8-2-2. GENERAL SETTING

4)Test Pattern: Choose the Pattern picture;

5)Dynamic Contrast: Choose on or off in

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

7)Mirror Control: Choose on or off in Mirror

8)Front End Status

9)Timer Test

10)SSC

11)Erase Flash

12)PQ Advance Debug: Choose on or off in
PQ Advance Debug;

32

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;

Dynamic Contrast;

On Mode;

Control;

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.

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 Date

6)6MX0 LVDS Map: choose the 6MX0 LVDS MAP;

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

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

9)6MX0 Demo: choose the 6MX0 Demo;

10)6MX0 Update.

33

Service Manual

Model No.: 32D3005

Service Manual

Model No.: 32D3005

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.

34

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 sound

Verify that the sound system is correct. Refer to the
user

manual for instructions on how to adjust it.

No picture on some channel

Verify 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 for
10 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

35

Service Manual

Model No.: 32D3005

1

2

3

4

5

6
7

8

Service Manual

Model No.: 32D3005

9-2. Mainboard IC Introduction

Top view

36

Service Manual

Model No.: 32D3005

Bottom view

37

Service Manual

Model No.: 32D3005

1.Mainchip—MSD3393LU(U1)

2. Audio Amplifier—TPA3110D2PWPR (UA1)

3.Main Flash Memory—GD25Q32BSIG (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

38

Service Manual

Model No.: 32D3005

9-3. Mainboard Failure Check

No picture but have sound

Check the power output

Yes

Check the CN2 (BLO)
Backlight on/off

No

No

Change the Power Board

There’s something wrong
with FRC

Yes

Verify if the DC/DC
convertor can output the
right Voltage,

No

Change the corresponding
DC/DC

QB3 output 5V

Yes

No

Verify if

QM1

Change

the QM1

output

Yes

Still having

Change Panel

problems

Change LVDS wire

39

you connect.

Service Manual

Model No.: 32D3005

No sound but have picture

Verify if the speakers are
broken

No

Verify if the main board has the
right input ,according to the source

TV/COMPONENT/AV/VGA/HDMI etc.

Verify if UA1 has the right
output

Check CN17 input is right

Still having problems

Yes

Yes

Yes

No

No

Change Mainboard

Change the speakers

Check the corresponding audio
input circuit you connect.

Verify if UA1 has the right power in

No

Change UA1

40

Service Manual

Model No.: 32D3005

No sound No picture

No

41

Verify if the Power has
5Vstb output

Yes

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

Change the software

No

No

No

Change the
Power supply

Change Power board

Change Power board

Change corresponding
DC/DC convertor

Still having
Problems

Change
Mainboard

Service Manual

Model No.: 32D3005

Poor sound

Poor sound

Verify if sound system is
correct .

No

Change 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 and
make the reboot; or
change the maiboard

42

Service Manual

Model No.: 32D3005

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 other
channels

Yes

check out of picture
and sound system

No

No

Check out of picture and sound
system of this channel

Change the channel to the right sound
system (PAL-BG SECAM/L)

43

Yes

Refer to relative
instructions in the
Manual for color adjust

Still having
problems

Updata the software and
make the reboot; or
change the maiboard

Service Manual

Model No.: 32D3005

How to know whether the Power board is broken?

Check if the power cord co
nnect well?

Yes

Check if the Power board

No

No

Reconnect the power cord with the
outlet or Power board.

Replace the Power board pls.

output 5V and 12V ?

Still having
problems

Check if Main board / LVDS wire / Panel are in
good condition

44

Dim or L/D :TCP Sunken

:Awful environment and

something electric enter

:Mis-align between TCP and

:Panel failure

Phenomena

V B/D

Vertical bar

V Dim

V L/D

H B/D

H Dim

Horizontal gary line

H L/D

Service Manual

Model No.: 32D3005

9-4. Pannel Failure

Failure Mode

45

Description

Phenomena

Bright dot dark dot in pannel

Incoming Inspection Standard

Bladder in Polarizer

Bladder between Polarizer and

top glass

Tine or rigidity arose

Eyewinker inside Polarizer

Abnormal Display

Bright and dark display alternately

1.Chip lose action

3.Pannel and vsc connect bad

Name

Dot Defect

Polarizer Bubble

Abnormal Display

Circuit

Flashing

Service Manual

Model No.: 32D3005

46

Part

Name

Description

Failure Cause

only white screen display

Circuit

FIIcker

LCD

Vcom imbalance

Only

Capacitance

Only

color abnormal

2.IC short or jointion bad

Service Manual

Model No.: 32D3005

47

Description

Caused

Part

Name

Failure cause

Ripple

Connectric circle

between

B/L off

B/L lose action

*Connect

badness

between wire and electrode

B/L dark

B/L brightness darker than

normal

*Connect

badnessShort between wire and electrode

wire damaged

wire damaged

Operation

abnormal

or systemic noise

Operation

abnormal

or systemic noise

B/L shut down

B/L shutdown in sometime

or wirelike

Service Manual

Model No.: 32D3005

48

Name

B/L unit badness

at bottom of LCM brighter

than normal

Mechanlcal or B/L

Uniformity

Sheet in B/L unit is uneven

or screw damage

Screw damage

Service Manual

Model No.: 32D3005

49

Sincere Forever

Haier Group

Haier Industrial Park, No.1, Haier Road

266101, Qingdao, China

http://www.haier.com

Printed in China