Model No. 32D3005 - Encompass · SERVICE MANUAL LED TV Model No. 32D3005 MSD3393LU Chassis WARNING This service information is designed for experienced repair technicians only and

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

1


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

2


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

3


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

4


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 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.

5


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.

6


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.

7

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 NTSC ATSC 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


Chapter 2. Specification

2-1. Specification list

8


2-2. External pictures (four faces)

Front Side

Up Side

9


Right Side

Back Side

10

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

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.

11


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.

12


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

DH1TKPM0002M712-315E7-X6251


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/CN805

Pin number Signal name 1 LED+

2 NC

3 LED-

Speaker connector CN20 Pin number Signal name

1 ROUT+

2 ROUT- 3 LOUT- 4 LOUT+


15


4-3. LCD Panel

32D3005

Backlight Unit

LVDS CONNECTOR CNF1

16


17


Chapter 5. Installation Instructions

5-1. Accessories

Remote Control

18

Batteries


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

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

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

A Connect 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 the SOURCE button 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 firstly and then the PC.

Press the Source button on the TV or TV remote

control 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 the COMPONENT (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.

19

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

20

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 input 10 HDMI2(MHL) input 11 HDMI3(ARC) input 12 USB IN input


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. 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).


Chapter 7. Electrical Parts

7-1. Circuit Diagram

VCC

SGND

SGND

SGND

SGND

SGND

GND

VBL

SGND

GND

12V

GND

GND

12V

GND

12V

12V

12V

Vbridge

L

S

GNDSGND

RB

117

BRO

SGND

BRO

OVP CIRCUIT

!

!

!

!

!

!

RB141

RB142

RB143

CB

111

RB101

RB102

GND1

COMP2

OTP3 CS 4

VCC 5

OUT 6UB101

34

PCB

101B

12

PCB

101A

KA

RUB102

CB

103

RB

104

34

PCB

102B

12

PCB

102A

CB

101

RB105

RB

118

CB114

RB

119

RB

120

RB

121

RB

122

AK

DB106

BB101

CB116

RB

112

RB

113

RB

114

RB

115

RB106

RB107

RB108

RB109

QB101

RB148

RB

111

CB

113

RB

116

AK

DB

104

EB106

RB110

DB105

11

33

22

ZB101EB10

7

CB

102

CB118

RB124RB125RB126RB127

RB144RB145RB146RB147

A K

DB102A K

DB103 RB

140

CB117

RB128RB129RB130

RB131

RB132 RB135

RB133

CB109

CB110

RB137 RB134

1234

CNB2

RB138

11

33

22

ZB102

RB

139

RB

123

QB102

1

32

DB101

CYB3

EB10

4

EB10

5

4

5

2

1

8

9

7

10

TB101

EB1

EB101

BB102

4

5

2

1 8

6

9

10

7

4

5

2

1

9

10

NC

NC

NC

NC

NCNC

NCNC NCNC

GND

GND

GND

OVP

OVP

LED+

GATE

GATE

GND

PWM-DIM

GND

VBL

DVCC

12V

GND

PWM-DIM

PWM-REF

VCC_Panel

LED-SHORT LED-SHORT

VCC_Panel

PWM-REF

PWM-DIM

VCC_Panel

LED-FB

LED+LED-FB

PIN1

PIN6

PIN7

PIN8

DB803

RB816VIN1

GATE2

GND3

CS4

PWM 8

COMP 6

FB 5

OVP 7

UB801

RB801

CB807

RB802

CB

806

RB820

LB802

LB801

BB801

RB812

RB813CB810

DB801

CB809

RB

810

RB

811

RB807

RB809

RB808

RB821

RB814

RB815

EB80

1

EB80

2

EB80

3

AK

DB

804

RB

837

RB

838

RB

839

RB

840

RB

841

12CNB802

QB809

BB8022 56 LB803

LED-FBGND

RB805

PIN5

CB812

GND

RB822

CB

802

RB828PIN7PIN1

PIN4

RB806

PIN4

RB827

CB804

QB804

DB807

CB801

GND

LED-SHORT

QB802

RB

826

RB

825

CB813

DB805 DB806

LED1 LED2LED3 LED4

RB823 RB824

RB

830

RB

831

RB

832

RB

833

LED1 LED2 LED3 LED4

DVCC

RB834 RB835

C

B

E

QB805

C

B

E

QB806

C

B

E

QB807

C

B

E

QB808

12345678910

CNB807

LED+

LED1LED2LED3LED4

CB803

123

CNB801

1234567

CNB806

LED+ LED-FB

LED+LED+

LED1 LED3

12

CNB803

12345

CNB805

12345

CNB804

LED1 LED2

LED3 LED4LED+ LED+CB805 RB804

D

G

S

QB801

RB803

123

CNT1

PWM-DIM

3V3_STB

LED-SHORT

DB

T1

PWM-REF

11

HS 22

HSB5

11

HS 22

HSB6

RB

850

RB

851

RB

852

RB

853

RB

819

EB80

4NC NC

NC NC

NCNCNCNC

NC NC

NC

NC

NC

NC

EMI

SGND

GND

Vbridge

!

!

!

!! !

! !

! !

!

!

!

RB

1

RB

2

RB

3

RB

4

CX

B1

CX

B2

DB1 DB2DB3 DB43

1

N

L

CNB1

NTCB1

FB1

32

41

LCB2

MO

VB

1CYB1

CYB2

14

23LCB1

!1 4

2 3

LCB3

S

L

CX

B3

!

NC

NC

NC

T3.15AL 250VAC

VI3 VO 2

ADJ

1

VO 4

UL2LC1117CLTRAD 1V8_DDR

RL1

330o

hm

RL2

150o

hm

CL6

0.1u

F-16

V

CL5

0.1u

F-16

V

5V_M

CL7

10uF

-6.3V

GND

GND

GND

CL4

10uF

-10V

CL19

NC/22u

F-6.3V

PWM/ADJ PWM-DIM PWM-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

RE410Kohm

RE2

4K7ohm

5V_STB

C5610uF-16V

C1

0.1uF-16V

RD5

100Kohm

C2

0.1uF

12V

C5710uFIN3

EN5

BS

6

SW 2

FB 4

GND

1

UD3MP1470GJ-Z

RD918Kohm

RD83K3ohm

RD24100KohmC22

10pF

RD40ohm

CD110.1uF-16V

LD2 SCD54TL-4R7M

+

E2

470uF

+

E1

470uF-16V

RD2

12K4ohmRD3

13Koh

m

CD5

0.1u

F-16

V

RD1

10Koh

m

EN1

GND

2

SW 3VIN4

FB 5

UD1M3406-ADJ

1.15V_STB1.15V_STB

TEST

CD3

22uF

-6.3V

CD2

0.1u

F-16

V

CL11

0.1u

F-16

V

3V3_STB

CL1

0.1u

F-16

V

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/10u

F-10

V

CD1

10uF

-10V

PVCCQM1

WPM3407C-3/TR

RM3

200Kohm

QM2

LMBT3904LT1G

RM1

4K7o

hm

VCC_Panel

R12V

0ohm

PVCC12V

CM2

0.1u

F-16

V

GND

GND

CM6

10uF

-16V

POW_EN

GND

RM51K5ohm

LED-SHORTRM4

3Kohm

RM7100ohm

R5VNC/0ohm

PVCC5V_STB

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

0.1u

F-16

V

CD8

1uF-6.3V

CD9

1uF-6.3V

CD10

0.1u

F-16

V

3V3_STBFB2

FCM1005KFCL17

0.1u

F-16

V

GND

3V3_STBFB3FCM1005KF

CL18

0.1u

F-16

V

GND

+3_3V_AU+3_3V_PLL

CL10

1uF-6.3V

CL12

1uF-6.3V

CL13

1uF-6.3V

CL14

0.1u

F-16

V

FB4

FCM1005KF

+3_3V_ADC

CL20

1uF-6.3V

CL15

1uF-6.3V

C5

1000

pF

C6

1000

pF

R5

200K

ohm

R6

200K

ohm

R3100ohm

R4100ohm

CL2

0.1u

F-16

V

GND

PWM/ADJ

MH

L_C

AB

LE-D

ET

AM

P-M

UTE

AU_VRM

IF_A

GC

VIF

PV

IFM

AU_VAG

+3_3V_AU1.15V_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

HD

MI2

_SC

LH

DM

I2_S

DA

HD

MI2

_RX

C_N

HD

MI2

_RX

C_P

HD

MI2

_RX

0_N

HD

MI2

_RX

0_P

HDMI2_RX1_NHDMI2_RX1_PHDMI2_RX2_NHDMI2_RX2_P

HOTPLUG1'

HD

MI1

_SC

LH

DM

I1_S

DA

HD

MI1

_RX

C_N

HD

MI1

_RX

C_P

HD

MI1

_RX

0_N

HD

MI1

_RX

0_P

HD

MI1

_RX

1_N

HD

MI1

_RX

1_P

HD

MI1

_RX

2_N

HD

MI1

_RX

2_P

HD

MI3

_SC

LH

DM

I3_S

DA

HDMI3_RXC_NHDMI3_RXC_PHDMI3_RX0_NHDMI3_RX0_PHDMI3_RX1_NHDMI3_RX1_PHDMI3_RX2_NHDMI3_RX2_P

HO

TPLU

G2'

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

RX

E3_

P

RXE2_NRXE1_PRXE1_N

RXE0_NRXE0_P

RXE2_P

RX

E3_

N

RX

EC

_NR

XE

C_P

M_S

CL

M_S

DA

XTA

LIX

TALO

SP

DIF

_OU

TP

OW

_EN

PC_LINPC_RIN

AM

P-L

OA

MP

-RO

GND

+3_3

V_A

DC

+3_3

V_P

LL

1.15

V_S

TB1V

8_D

DR

3V3_

STB

GND

1.15

V_S

TB

AV

DD

5V_M

HL

1V8_

DD

R1.

15V

_STBGND

USB0_DMUSB0_DP

GNDVCOM

LED_REDKEY

BL_EN

LVA0M 70

SOGIN122 BIN1P21

GIN1M24 GIN1P23

CVBS028 CVBS127

AUL136

GIN0P16

GPIO0/GPIO44

55

LVACKM

64

VDDC/D

VDD_D

DR_C

MD

54VDDIO

_CMD

53

AVDD_MOD5

RIN1P25

HOTPLUG_C/D 80

LVA1P 67

LVB3P 71

DDCDB_C

L11

2

DDCDB_D

A11

1

GIN0M17

IRIN 93

CEC 92

TEST 91

DDCA_CK 90

DDCA_DA 89

LVA3M

62

LVACKP

63

LVA2P 65LVA2M 66

DP_P0 97

LVB2P 74LVB2M 75LVB1P 76LVB1M 77LCK/LVB0P 78

PWM0 83

AVDD_MOD 73

DM_P0 96

HOTP

LUG_B

113

AVDD_5

V11

4GND_E

FUSE

115

RX0P

_B12

8

VIFP

46

VIFM

47

AUOUTR

044

IFAGC

45

XIN

50AVDD3P

3_DMPL

L49

XOUT

51

RX1N_B1

RX1P_B2

RX2N_B3

RX2P_B4

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

AUOUTL

341

AVDD_M

OD

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 84SPI_DI 85SPI_CZ 86

PWM1 82

VDDIO

_DATA

105

DDCDC_C

L10

6

DM_P1 98

VDDC/D

VDD_D

DR_D

ATA

104

DP_P1 99AVDD_MOD 100

DDCDA_D

A10

9

INT/GPIO64 94

VDDC/A

VDDL_

DVI

116

RESET 95

MHL_

DET

110

DDCDC_D

A10

7DDCDA_C

L10

8

E-PA

D12

9

VSYNC126

AUR033

AUOUTL

043

AUOUTR

342

GPIO1/GPIO45

56

SPI_CK 87RXCN_D

117

RXCP_

D11

8RX0N

_D11

9RX0P

_D12

0RX1N

_D12

1

RX2N

_D12

3RX2P

_D12

4

RX1P

_D12

2

RXCP_

B12

6RX0N

_B12

7

RXCN_B

125

VRM38

AUL4

39

SAR1 102

SAR0 101

SAR2

103

GPIO5/GPIO49

60

ARC 88AVDD3P

3_DADC

48

U1MSD3393LU

GND

FB5FCM1005KF

C3

10uF

-6.3V

C4

0.1u

F-16

V

C14

0.1u

F-16

V

3V3_STB

3V3_STB

3V3_STB

3V3_STB

HOTPLUG3'

VCOMRI7

68ohm

CI7

0.047uF

GND

GIN1MRI37

68ohm

CI10

0.047uF

GND

HD

MI3

_DE

T

PH_EN

PH-D

ET/

XTALI

XTALOCF2

33pF

CF1

33pF

GND

GND

R99

1Moh

m

Y1

24MHz

RF4

NC/100

Koh

m

RESET_HRF3

NC/1Kohm

QF1NC/SGM810-SXN3L

GND

CF17

NC/0.1uF

-16V

GND

PWM/ADJ

BL_EN

R26 4K7ohm

R2 4K7ohm

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

10Koh

m

#F_WP

GND

3V3_STB

CF7

0.1u

F-16

V

GND

CF16

NC/0.1uF

-16V

GND

3V3_STB

RV13

10Kohm

RV18

100ohm

RV12

100ohm

162738495

111213141510

1716

TXD

SDAHSVS

SCL

RGND

GGND

BGND

RXD

5VDET

GND

GND GND

DB15

AV7

WLH

D-051A

RV11

100ohm

RV14

10Kohm

RV16

100ohm

RV175ohmRV2

75ohm

RV375ohm

RV4

33ohm

RV633ohm

RV833ohm

CV4

0.047uF

CV6

0.047uF

CV8

0.047uF

GND

GND

GND

VGA_H

S

VGA_V

S

RV768ohm

CV7

0.047uF

GND

RV17

4K7ohm

RV15

4K7ohm

GND

5V_STB

UA

RT-R

X/D

DC

UA

RT-TX

/DD

C

VS

_VG

A

HS

_VG

A

VGA_R

IN

VGA_G

IN

VGA_B

IN

GIN

0M

VGA_SD

A

VGA_SC

L

RV2112Kohm

RV22

12Kohm

RV20

10Kohm

RV19

10Kohm

1234 5GND

ERO

RSPK

LSPK

ELO

AV8

PJ-325

GND

GND

PC

_LIN

PC

_RIN

GND

CV19

0.1uF-16V

CV20

0.1uF-16V

CV1NC/10pF

CV2NC/10pF

CV3NC/10pF

SPDIF_O

UT

CF51

0.1uF-16VCF52

330pF

RF52

100ohm

RF51

220ohm

GND

COAX

SPDIF_O

UT'

CF53

NC/10pF

DF41

NC/AIES12U020R2

DF42NC/AIES12U020R2

5V_M

F2NC/FSM

D110U

SB

0_DP

US

B0_D

MU

SB

_5V

GND

GND

RF41

5R1ohm

RF42

5R1ohm

US

B_P

1 2 3 4

CN15

NC/4PIN

-2.0-D-H

-G

RF43

0ohm

US

B_5V

US

B_M

US

B_PG

ND

1234GND

DMDP 5V

56GND

GND

AV21

USB

-042M-002D

P

GND

VS

_VG

A

HS

_VG

A

GND

US

B_M

D7

NC/AVLC18S02003

CF41

10uF-10V

GND

GND

SPDIF_O

UT'

COAX

5V_M

RF2NC/0ohm

IR Transm

itterVin

1

Vcc

2

GND

3

GND

4

GND

5

AV26

NC/G

Q-03-08

+

EF1

NC/100uF-16V

RI33

75ohm

RI32

75ohm

RI31

75ohmGND

GND

GND

YPbPr_Y

YPbP

r_Pb

YPbP

r_Pr

YPbPr_Y

YPbP

r_Pb

YPbP

r_Pr

GND

D4

NC/AVLC18S02003

D5

AVLC18S02003

D6

NC/AVLC18S02003

RI34

33ohmRI38

33ohmRI36

33ohm CI8

1000pF

CI9

0.047uF

CI36

0.047uF

CI38

0.047uF

HD

1_SO

G

HD

1_Pr

HD

1_Y

HD

1_Pb

YPbPr_Y

YPbP

r_Pb

YPbP

r_Pr

123456

PbGND

YGND

PrGND

AV4

AV19-03S-0020(

)-

AV

_LIN

AV

_RIN

AV_L

AV

_R

RI212Kohm

RI5

10Kohm

RI312Kohm

RI6

10Kohm

GND

GND

CI5

0.1uF-16V

CI6

0.1uF-16VD9

NC/AVLC18S02003 D8

NC/AVLC18S02003

GND

GND

AV_L

AV

_R

GND

GND

AV

_R

AV_L

COAX

14 2LGND

RGND

3

AV6

NC/A

V2-8.4-84-Y

()-

123456

LGND

R GND

COAX

GND

AV18

AV3-8.4-06C

()-

-JSL

CT3

3

33pF

3V3_

Tun

1.8V

RF

IFN

IFP

CT1

5

0.1uF-16V

3V3_

Tun

1.8V

RF

CT1

2

0.1uF-16V

3V3_

Tun

CT6

0.1u

F-16

V

GND

GND

CT4

0.1u

F-16

V

1.8V

RF

GND

CT8

1000

pF

CT9

1000

pF RT3

100o

hmCT1

4

NC/0.1uF-16V

GND

CT11

0.1uF-16V

GND

3V3_

Tun

RT1

750Kohm

GND

GND

CT2 1uF-6.3V

CT1

1uF-6.3V

C78 1uF-6.3V

LT1

MGHB10

05S1

02T-LF

TUNER

_SCL

TUNER

_SDA

TDA

_IF_

AG

C

CT2

8

1000

pF

GND

GND

GNDGND

DT1 BAV99-BR

GND 12345

RFGND

GND

GND

GNDRFT

1

T-14

.5×2

5×9-F1

4.5-LH

D

NC/ESD

NC/ESD

LT4 SDCL1005CR33JTDF

LT3

33nH

LT6

33nH

LT2

HQ10

05C8N

2JT

CT1

0

5.6p

F

GND

CT1

7

1000

pF

CT2

4

NC/120pF GND

LT9

NC/SDCL1005CR33JTDF

CT3

4

33pF

GND

GND

CT1

6

NC/1.8pF GND

VDD_3

P3_1

1

LNA_INP

2

LNA_INN

3

VDD_1

P8_1

4

AGC_2

/GPO

35

AGC_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

P213

GND_D

IG14

VDD_1P8_322

GND_XTAL21

XTAL_P20

XTAL_N19 CLK

_OUT

18

SDA

17

SCL

16

VDD_IO

15

AS24

RESET_N23

PADGND25

UT2

MxL

661

YT1

16MHz

RT12

120nH

RT10

120nH

CT18

10pFIF_A

GC

RT21

0ohm

RT18

10Kohm 3V

3_Tun

TDA

_IF_AG

C

GND

CT27

0.1uF-16V

CT32

0.1uF-16V

CT21

NC/56pF

CT22

NC/56pF

GND

GND

VIFM

VIFP

LT10

NC/680ohm

IFP

IFNCT19

0.22uF-16V

M_SD

A

M_SC

L

3V3_Tun

RT14

4K7ohm

RT15

4K7ohm

RT16

100ohm

RT17

100ohm

TUNER

_SDA

TUNER

_SCL

CT25

10uF-6.3V

3V3_Tun

CT3

0.1uF-16V

GND

CT13

NC/1uF-6.3V

FB9

FCM1005K

F

3V3_STB

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 28UA1

TPA3110LD2PWPRCA24

1uF-25V

CA15 1uF-10VRA11

12KohmCA18 1uF-10V

CA25

1000pF

CA3

1000

pF

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

RA8 47Kohm

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-25

V

LOUT-ROUT-

RA6220ohm

RA7

220ohm

CA271000pF

CA291000pF

15V_IN15V_IN

15V_IN

AMP-L1

AMP-R1

RA31

100ohmRA50

4K7ohm

GND

AMP-MUTE AMP_MUTE/

LA1

SCD54TL-220M

LA2

SCD54TL-220M

LA3

SCD54TL-220M

LA4SCD54TL-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-AROUTPH-DET

5V_M

5V_M

5V_M

PH-EN/

CA40

1uF-6.3V

CA41

1uF-6.3V

CA42

1uF-6.3V

CA39

1uF-6.3V

CA31

1uF-6.3V

CA56

0.1u

F-16

V

CA32NC/1000pF

CA35NC/1000pF

RA24

NC/4K7o

hm

RA25

NC/4K7o

hm

CA34 0.22uF-16V

CA36 0.22uF-16V

CA37 0.22uF-16V

CA38 0.22uF-16V

R31

1Koh

m

R30

1Koh

m

INL-1

INL+2

INR+3

INR-4

OUTR 5

G06

G17

HPV

SS8

GPN 9

PGND

10

CPP 11

HPV

DD

12

EN13

AVDD

14SG

ND

15

OUTL 16

GND 17

UA2TPA6132A2RTER

C13

NC/10u

F-10

V

AMP-L1

AMP-R1

GND

RA20

100ohm RA17

4K7ohm

PH_EN PH-EN/

PH-ALOUT

PH-AROUT

R14 22ohm

R18 22ohm

PH-DET/PH-DETRA15

1Kohm

RA4220Kohm

5V_M

RA1433Kohm

HD

MI-C

EC

RH14

220ohm

HDMI1_5V

RH3

1Kohm

QH1

LMBT3904LT1G

RH2

10Kohm

RH1

10Kohm

HDMI1_5V

HO

TPLUG

1'

HDMI1_5V

HO

TPLUG

1

RH5

10Kohm

RH4

10Kohm

HD

MI1_S

CL/

HD

MI1_S

DA

/

GN

D

GN

D

GN

D

GN

D

GN

D

HD

MI1_5V

CEC

HO

TPLUG

1

HD

MI1_S

CL/

HD

MI1_S

DA

/H

DM

I1_SC

LH

DM

I1_SDA

GN

D

RH431Kohm

QH2

LMBT3904LT1G

RH42

10Kohm R

H4110Kohm

HDMI3_5V

HO

TPLUG

3'

HDMI3_5V

HO

TPLUG

3

RH45

10Kohm

RH44

10Kohm

HD

MI3_S

CL/

HD

MI3_S

DA

/HDMI3_5V

GN

D

GN

D

GN

D

GN

D

GN

D

HD

MI3_5V

CEC

HO

TPLUG

3

HD

MI3_S

CL/

HD

MI3_S

DA

/RH7

33ohmRH6

33ohmH

DM

I3_SC

LH

DM

I3_SDAGN

D

HD

MI1_R

XC

_NH

DM

I1_RX

C_P

HD

MI1_R

X0_N

HD

MI1_R

X0_P

HD

MI1_R

X1_N

HD

MI1_R

X1_P

HD

MI1_R

X2_N

HD

MI1_R

X2_P

HD

MI3_R

XC

_NH

DM

I3_RX

C_P

HD

MI3_R

X0_N

HD

MI3_R

X0_P

HD

MI3_R

X1_N

HD

MI3_R

X1_P

HD

MI3_R

X2_N

HD

MI3_R

X2_P

RH16

33ohmRH15

33ohm

HD

MI_A

RC

12345678910111213141516171819

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

161031041(SPC

C)

CEC

CH13

0.1uF-16V

CH12

0.1uF-16V

12345678910111213141516171819

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

AV3

161031041(SPC

C)

GND

CH80.1uF-16V

CH90.1uF-16V

GND

GND

HD

MI-A

RC

HD

MI_A

RC

CH141uF-6.3V

RH56

22Kohm

RH55

33Kohm H

DM

I3_DET

HD

MI3_5V

AVDD5V

_CD

RH27

33ohmH

OTPLU

G2'

HO

TPLUG

2RH25

10Kohm

RH24

10Kohm

HD

MI2_S

CL/

HD

MI2_S

DA

/

GN

D

GN

D

GN

D

GN

D

HD

MI2_5V

CEC

HO

TPLUG

2

HD

MI2_S

CL/

HD

MI2_S

DA

/RH31

33ohmRH30

33ohmH

DM

I2_SC

LH

DM

I2_SDAGN

D

HD

MI2_R

XC

_NH

DM

I2_RX

C_P

HD

MI2_R

X0_N

HD

MI2_R

X0_P

HD

MI2_R

X1_N

HD

MI2_R

X1_P

HD

MI2_R

X2_N

HD

MI2_R

X2_P

12345678910111213141516171819

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

161031041(SPC

C)

CH18

NC/0.1uF-16V

CH16

NC/22pFCH17

NC/22pF

MH

L_CD

_SENSE

RH10

100ohm

MH

L_CABLE-D

ETM

HL_C

D_SEN

SE

CH150.1uF-16V

RH29

10ohm

HDMI2_5V

AVDD5V

_MHL

MH

L_CD

_SENSE

GND

HDMI2_5V

RH12

47Kohm

CH610uF-10V

5V_STB

HDMI2_5V

RH59

0ohm

5V_STB

AVDD5V

_CD

RH60

NC/0ohm

GND

Vout

1

GND 2

Iset3

EN4

Vin

5

UH

1

AP2171WG

-7

RH13

NC/NC/6K

8ohm

RH20

10Kohm

SENSE

SENSE

GND

RH11

300Kohm

GND


7-2 . Wiring Connection Diagram

30


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


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 Flash 12)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.

32


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


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


9-2. Mainboard IC Introduction

Top view

36

1

2

3

4

5 6

7

8


Bottom view

37


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


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

There’s something wrong with FRC

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 output

Change the QM1

Yes Still having

problems

Change Panel

Change LVDS wire

39

you connect.


No sound but have picture

Verify if the speakers are broken

No

Yes

Change 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

40


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


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.


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

42


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)

Yes

Refer to relative instructions in the Manual for color adjust

Updata the software and


43

make the reboot; or change the maiboard


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.


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

44

Part

B

lock

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ect :

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cra

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cra

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CP

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9-4. Pannel Failure

Failure Mode

45

Des

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46

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47

Des

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48

Part

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crew

dam

age


49

Sincere Forever

Haier Group

Haier Industrial Park, No.1, Haier Road 266101, Qingdao, China

http://www.haier.com

Printed in China

Documents

Model No. 32D3005 - Encompass · SERVICE MANUAL LED TV Model No. 32D3005 MSD3393LU Chassis WARNING This service information is designed for experienced repair technicians only and