Haier 75UF5550B Service Manual
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Haier 75UF5550B Service Manual

Chassis msd3458
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Haier
Haier
Haier
Haier
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.
SERVICE
SERVICE
SERVICE
SERVICE MANUAL
WARNING
WARNING
WARNING
WARNING
©2013 Qingdao Haier Electronics Co., Ltd.
All rights reserved. Unauthorized copying and distribution is a violation of law.
MANUAL
MANUAL
MANUAL
Model
Model
No.
No.
Model
Model No.
No.
MSD3458
MSD3458
MSD3458
MSD3458
L L L L E E E E D D D D TV
TV
TV
TV
75UF5550
75UF5550
75UF5550
75UF5550
Chassis
Chassis
Chassis
Chassis
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Summary of Contents for Haier 75UF5550B

  • Page 1 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.

  • Page 2: Table Of Contents

    Service Manual 75UF5550 Model No.: 75UF5550 75UF5550 75UF5550 Model Model Model No.: No.: No.: CONTENTS CONTENTS CONTENTS CONTENTS Chapter Chapter Chapter 1. 1. 1. 1. General General General Information Information Chapter General Information Information 1-1. 1-1. Document Document Information Information ............
  • Page 3 Service Manual Model No.: 75UF5550 Model Model Model No.: No.: No.: 75UF5550 75UF5550 75UF5550 4-3-2. Connector definition ................15 4-4. 4-4. Panel Panel ..................................................16 4-4. 4-4. LCD LCD Panel Panel ................Chapter Chapter 5. 5. 5. 5. Installation Installation Instructions Chapter...

  • Page 4: Chapter 1. 1. 1. 1. General

    Service Manual Model No.: 75UF5550 Model Model Model No.: No.: No.: 75UF5550 75UF5550 75UF5550 Chapter Chapter 1. 1. 1. 1. General General Information Chapter Chapter General General Information Information Information 1-1. 1-1. 1-1. 1-1. Document Document Document Document Information Information Information Information Document format: Adobe PDF...

  • Page 5: About Lead Free Solder (Pbf)

    Service Manual Model No.: 75UF5550 Model Model Model No.: No.: No.: 75UF5550 75UF5550 75UF5550 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 Electrostatically Sensitive...
  • Page 6 Service Manual Model No.: 75UF5550 Model Model Model No.: No.: No.: 75UF5550 75UF5550 75UF5550 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.

  • Page 7: Ordering Spare Parts

    Service Manual Model No.: 75UF5550 Model Model Model No.: No.: No.: 75UF5550 75UF5550 75UF5550 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"...
  • Page 8 Service Manual Model No.: 75UF5550 Model Model Model No.: No.: No.: 75UF5550 75UF5550 75UF5550 Caution: Caution: Caution: 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.

  • Page 9: Chapter 2. 2. 2. 2. Speci

    Service Manual Model No.: 75UF5550 Model Model Model No.: No.: No.: 75UF5550 75UF5550 75UF5550 Chapter Chapter Chapter 2. 2. 2. 2. Speci Speci Speci Specifi fi fi fication cation cation Chapter cation 2-1. 2-1. 2-1. 2-1. Speci Speci Speci Specifi fi fi fication cation cation cation list...

  • Page 10: External External External Pictures Pictures Pictures (Four (Four (Four Faces)

    Service Manual Model No.: 75UF5550 Model Model Model No.: No.: No.: 75UF5550 75UF5550 75UF5550 2-2. 2-2. External External pictures pictures (four (four faces) faces) 2-2. 2-2. External External pictures pictures (four (four faces) faces) Front Front Side Side Front Front Side Side Side Side...
  • Page 11 Service Manual Model No.: 75UF5550 Model Model Model No.: No.: No.: 75UF5550 75UF5550 75UF5550 Right Right Side Side Right Right Side Side Back Back Side Side Back Back Side Side...

  • Page 12: 75Uf5550 75Uf5550 75Uf5550

    Service Manual Model No.: 75UF5550 Model Model Model No.: No.: No.: 75UF5550 75UF5550 75UF5550 Chapter Chapter Chapter 3. 3. 3. 3. Disassemble Disassemble Disassemble Assemble Assemble Chapter Disassemble and and Assemble Assemble 3-1. 3-1. 3-1. 3-1. 75UF5550 75UF5550 75UF5550 75UF5550 3-1-1.

  • Page 13: Remove The Remote Control Board

    Service Manual Model No.: 75UF5550 Model Model Model No.: No.: No.: 75UF5550 75UF5550 75UF5550 3-1-6. Remove the Remote Control Board And the Key Board Remove the Remote Control Board and the Key Board indicated by red circle in below picture.

  • Page 14: Chapter 4. 4. 4. 4. Location

    Service Manual Model No.: 75UF5550 Model Model Model No.: No.: No.: 75UF5550 75UF5550 75UF5550 Chapter Chapter 4. 4. 4. 4. Location Location Location of of of of Controls Controls Components Chapter Chapter Location Controls Controls and and Components Components Components 4-1.

  • Page 15: Mainboard Mainboard Mainboard

    Service Manual Model No.: 75UF5550 Model Model Model No.: No.: No.: 75UF5550 75UF5550 75UF5550 4-2. 4-2. 4-2. 4-2. Mainboard Mainboard Mainboard Mainboard 4-2-1. Function Description 4-2-1. 4-2-1. 4-2-1. Function Function Function Description Description Description Process signal which incept from exterior equipment then translate into signal that panel can display.

  • Page 16: Power Power Power Supply Supply Module

    Service Manual Model No.: 75UF5550 Model Model Model No.: No.: No.: 75UF5550 75UF5550 75UF5550 4-3. 4-3. 4-3. 4-3. Power Power Power Power Supply Supply Supply Supply Module Module Module Module 4-3-1. Function Description 4-3-1. 4-3-1. 4-3-1. Function Function Function Description Description Description To supply power for Mainboard, Panel.
  • Page 17 Service Manual Model No.: 75UF5550 Model Model Model No.: No.: No.: 75UF5550 75UF5550 75UF5550 4-4. 4-4. 4-4. 4-4. LCD LCD Panel Panel Panel Panel 75UF5550 75UF5550 75UF5550 75UF5550 Backlight Backlight Unit Unit Backlight Backlight Unit Unit LVDS LVDS LVDS LVDS CONNECTOR CONNECTOR CONNECTOR CONNECTOR CN1...
  • Page 18 Service Manual Model No.: 75UF5550 Model Model Model No.: No.: No.: 75UF5550 75UF5550 75UF5550...
  • Page 19 Service Manual Model No.: 75UF5550 Model Model Model No.: No.: No.: 75UF5550 75UF5550 75UF5550 Chapter Chapter 5. 5. 5. 5. Installation Installation Instructions Chapter Chapter Installation Installation Instructions Instructions Instructions 5-1. Accessories 5-1. 5-1. 5-1. Accessories Accessories Accessories Batteries Remote Control...
  • Page 20 Service Manual Model No.: 75UF5550 Model Model Model No.: No.: No.: 75UF5550 75UF5550 75UF5550 5-2. 5-2. External External Equipment Equipment Connections Connections 5-2. 5-2. External External Equipment Equipment Connections Connections Antenna Antenna Antenna Antenna Connection Connection Connection Connection Connect Connect Connect a a a a DVD Player Player...
  • Page 21 Service Manual Model No.: 75UF5550 Model Model Model No.: No.: No.: 75UF5550 75UF5550 75UF5550 Chapter Chapter 6. 6. 6. 6. Operation Operation Instructions Chapter Chapter Operation Operation Instructions Instructions Instructions 6-1. 6-1. 6-1. 6-1. Front Front Front Front Panel Panel Panel Panel Controls Controls...
  • Page 22 Service Manual Model No.: 75UF5550 Model Model Model No.: No.: No.: 75UF5550 75UF5550 75UF5550 6-2. 6-2. Back Back Panel Panel Controls Controls 6-2. 6-2. Back Back Panel Panel Controls Controls...

  • Page 23: Electrical Electrical Parts Parts

    Service Manual Model No.: 75UF5550 Model Model Model No.: No.: No.: 75UF5550 75UF5550 75UF5550 6-3. 6-3. Setting Setting Your Your Remote Remote Control Control 6-3. 6-3. Setting Setting Up Up Your Your Remote Remote Control Control When using the remote control, aim it towards the remote sensor on the TV. 1 1 1 1 POWER.
  • Page 24 CND2 CN27 510ohm-0402-¡ À 1 %-1/16W RD11 Panel_VCC 1K5ohm-0402-¡ À 1 %-1/16W 5V_STB LMBT3906LT1G 5V_STB NC/0ohm-1206-¡ À 5 %-1/4W BL_ON BL_ON CD10 CD22 1.15V_STB PW_ON RD10 TEST 1.15V_STB CN26 CND1 CD11 CD18 CD19 CD33 CD34 5V_M 5V_M NC/10uF-0805-X5R- ¡ À 2 0%-16V 5V_M 5V_M 10uF-0805-X5R- ¡...
  • Page 25 1.15V_STB 1.15V_STB AVDDL_MOD 1.15V_STB 3V3_STB 1V8_DDR CD45 CD46 CD47 CD48 CD49 CD50 CD51 CD52 CD53 CD54 CD55 CD56 CD57 CD58 主芯片 ,IC Main Chip,MSD3458HB-L,32bit,Single-Core,LQFP156,SMD,Mstar 2.2uF-0402-X5R-¡ À 2 0%-6.3V 1uF-0402-X5R-¡ À 2 0%-6.3V 1uF-0402-X5R-¡ À 2 0%-6.3V 1uF-0402-X5R-¡ À 2 0%-6.3V 1uF-0402-X5R-¡...
  • Page 26 5V_M 3V3_STB RK15 5V_STB LED_G RK18 RK13 RK20 LED_R LED_RED RK19 REMOTE 33Kohm-0402- ¡ À 5 %-1/16W 510ohm-0402- ¡ À 1 %-1/16W 4K7ohm-0402- ¡ À 5 %-1/16W 10Kohm-0402- ¡ À 5 %-1/16W 27pF-0402-NPO-¡ À 5 %-50V LMBT3904LT1G 1Kohm-0402- ¡ À 5 %-1/16W 1Kohm-0402- ¡...
  • Page 27 NC/10Kohm-0402-¡ À 5 %-1/16W 5V_STB NC/LMBT3904LT1G UART-RX HDMI1_SCL HDMI3-RX2P HDMI3-RX2N NC/10Kohm-0402-¡ À 5 %-1/16W HDMI3-RX1P HDMI3-RX1N NC/1Kohm-0402-¡ À 5 %-1/16W HDMI3-RX0P HDMI3-RX0N RH47 HDMI3-CLKP HDMI3-CLKN NC/LMBT3904LT1G HDMI3_SCL HDMI3_SDA HDMI3_5V_M 5V_M NC/4K7ohm-0402-¡ À 5 %-1/16W RH53 I2C_EN I2C_EN HDMI3_5V HOTPLUG3 NC/FCM1005KF-121T06(120ohm-500mA) CH27 NC/LMBT3904LT1G HDMI3_5V_M...
  • Page 28 RI34 CVBS&COAX CVBS GIN0 NC/0.047uF-0402-X7R- ¡ À 1 0% -16V 200ohm-0402- ¡ À 5 % -1/16W NC/33ohm-0402- ¡ À 5 % -1/16W 33pF-0402-NPO- ¡ À 5 % -50V 白、红 密封 5V_M SPDIF_OUT' AV19-02S-0010( 端子 、 、 CI11 NC/RCA ,RCA Jack,AV3,H,Yellow White Red,CH6.7,D14,Seal,DIP,AV3-8.4-06C-XSH,JSL SPDIF_OUT...
  • Page 29 3V3_STB 3V3_Tun/ CNT1 WLHD-051A 5V_M 3V3_Tun/ 3V3_Tun/ 3V3_Tun/ 3V3_Tun/ TUNER_SDA TUNER_SCL CT33 CT34 CT56 CT57 CT58 CT59 TU_AGC FCM1005KF-121T06(120ohm-500mA) NC/0.1uF-0402-X5R- ¡ À 2 0%-16V NC/10uF-0603-X5R- ¡ À 2 0%-6.3V NC/NC/10uF-0603-X5R- ¡ À 2 0%-6.3V 0.1uF-0402-X5R- ¡ À 2 0%-16V NC/0.1uF-0402-X5R- ¡ À 2 0%-16V 1uF-0402-X5R- ¡...
  • Page 30 3V3_STB RH59 RH60 NC/10Kohm-0402-¡ À 5 %-1/16W NC/10Kohm-0402-¡ À 5 %-1/16W NC/22Kohm-0402-¡ À 1 %-1/16W NC/10Kohm-0402-¡ À 5 %-1/16W RH61 RH62 RH63 DVD_DAT CH28 RH64 RH65 NC/10Kohm-0402-¡ À 5 %-1/16W HP_DET NC/LMBT3904LT1G NC/LMBT3904LT1G NC/NC/0.1uF-0402-Y5V-+80%-20%-16V NC/10Kohm-0402-¡ À 5 %-1/16W 1Kohm-0402-¡ À 5 %-1/16W CNA4 CNA2 AMP_VCC...

  • Page 31: Diagram

    CNW1 CNW20 CNW12 VCC_Panel VCC_Panel CNW3 NC/0ohm-0402-¡ À 5 % -1/16W NC/0ohm-0603-¡ À 5 % -1/10W VCC_Panel VCC_Panel NC/0ohm-0603-¡ À 5 % -1/10W 0ohm-0603-¡ À 5 % -1/10W 0ohm-0603-¡ À 5 % -1/10W 0ohm-0402-¡ À 5 % -1/16W RW26 CNW12_PIN43 CNW12_PIN43 RW52 CNW12_PIN42...
  • Page 32 1V2_DEMO 5V_M VDD1V2_DM VDD3V3_DM TEST VDD3V3_DM 3V3_Tun/ VDD3V3_DM CT13 CT25 UFT1 RT33 RT34 CT55 CT29 RT20 MSPI_CSZ RT11 MSPI_DO HOLD# RT31 CT30 RT13 RT19 TUNER_SDA DEMO_SDA MSPI_WP MSPI_CLK SCLK CT31 MSPI-DI RT32 CT35 TUNER_SCL DEMO_SCL RT21 NC/1Kohm-0402- ¡ À 5 %-1/16W NC/0ohm-1206- ¡...
  • Page 33 Service Manual Model Model No.: No.: 75UF5550 75UF5550 Model Model No.: No.: 75UF5550 75UF5550 7- 7- 7- 7-2 2 2 2 ..Wiring Wiring Connection Diagram Wiring Wiring Connection Connection Connection Diagram Diagram Diagram...

  • Page 34: Service Service

    Service Manual Model No.: 75UF5550 Model Model Model No.: No.: No.: 75UF5550 75UF5550 75UF5550 Chapter Chapter Chapter 8. 8. 8. 8. Measurements Measurements Measurements Adjustments Adjustments Chapter Measurements and and Adjustments Adjustments 8-1. 8-1. 8-1. 8-1. Service Service Service Service Mode Mode Mode Mode...

  • Page 35: Picture

    Service Manual Model No.: 75UF5550 Model Model Model No.: No.: No.: 75UF5550 75UF5550 75UF5550 8-2-2. 8-2-2. 8-2-2. 8-2-2. GENERAL GENERAL GENERAL GENERAL SETTING SETTING SETTING 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;...

  • Page 36: Sound

    Service Manual Model No.: 75UF5550 Model Model Model No.: No.: No.: 75UF5550 75UF5550 75UF5550 8-2- 8-2- 8-2-4 4 4 4 ..SOUND SOUND SOUND 8-2- SOUND Adjust the values of Sound Mode, Volume Curve,Audio Output and True Volume in different source.

  • Page 37: Software Update Update

    Service Manual Model No.: 75UF5550 Model Model Model No.: No.: No.: 75UF5550 75UF5550 75UF5550 8-3. 8-3. 8-3. 8-3. Software Software Software Software Update Update Update Update 8-3-1. 8-3-1. MSD3393LU MSD3393LU software software update update 8-3-1. 8-3-1. MSD3393LU MSD3393LU software software update update 1.

  • Page 38: Trouble Trouble Shooting Shooting

    Service Manual Model No.: 75UF5550 Model Model Model No.: No.: No.: 75UF5550 75UF5550 75UF5550 Chapter Chapter Chapter 9. 9. 9. 9. Trouble Trouble Trouble shooting shooting Chapter Trouble shooting shooting 9-1. 9-1. 9-1. 9-1. Simple Simple Simple Simple check check check check Verify if the television is properly plugged...

  • Page 39: Mainboard

    Service Manual Model No.: 75UF5550 Model Model Model No.: No.: No.: 75UF5550 75UF5550 75UF5550 9-2. Mainboard Mainboard IC IC IC IC Introduction Introduction 9-2. 9-2. 9-2. Mainboard Mainboard Introduction Introduction Top view...
  • Page 40 Service Manual Model No.: 75UF5550 Model Model Model No.: No.: No.: 75UF5550 75UF5550 75UF5550 Bottom view...
  • Page 41 Service Manual Model No.: 75UF5550 Model Model Model No.: No.: No.: 75UF5550 75UF5550 75UF5550 1.Mainchip—MSD3458(U1) 2. Audio Amplifier—TPA3110D2PWPR (UA1) 3.Main Flash Memory—GD25Q32CSIG (U2) 4.DC/DC convertor 5V-1.8V for LC1117CLTR33 (UD3) 5.voltage convertor 5V to 3.3V_STB —LC1117CLTR33 (UL3) 6.voltage convertor 5V to 1.15V_STB —SCD54TL-2R2M (UD2) 7.Tuner —...

  • Page 42: Check

    Service Manual Model No.: 75UF5550 Model Model Model No.: No.: No.: 75UF5550 75UF5550 75UF5550 9-3. 9-3. 9-3. 9-3. Mainboard Mainboard Mainboard Mainboard Failure Failure Failure Failure Check Check Check Check No picture but have sound Check the power output Change the Power Board There’s something wrong Check the CON2 (BLO) with FRC...
  • Page 43 Service Manual Model No.: 75UF5550 Model Model Model No.: No.: No.: 75UF5550 75UF5550 75UF5550 No sound but have picture Verify if the speakers are Change the speakers broken Verify if the main board has the Check the corresponding audio right input ,according to the source input circuit you connect.
  • Page 44 Service Manual Model No.: 75UF5550 Model Model Model No.: No.: No.: 75UF5550 75UF5550 75UF5550 No sound No picture Verify if the Power has Change the 5Vstb output Power supply Verify if CND2 Pin3/4 has 5V Change Power board input Verify if CND1 Pin1 has 12V Change Power board input Change corresponding...
  • Page 45 Service Manual Model No.: 75UF5550 Model Model Model No.: No.: No.: 75UF5550 75UF5550 75UF5550 Poor sound Poor sound Verify if sound system is Change sound correct . system For ease of use, recommend that customer format the picture and sound settings in the automatic option. Updata the software and Still having make the reboot;...

  • Page 46: Failure

    Service Manual Model No.: 75UF5550 Model Model Model No.: No.: No.: 75UF5550 75UF5550 75UF5550 No color for some channel program (black and white) No color for some chann el program (black and w hite) Verify if the same Check out of picture and sound problem exists in other system of this channel channels...
  • Page 47 Service Manual Model No.: 75UF5550 Model Model Model No.: No.: No.: 75UF5550 75UF5550 75UF5550 How to know whether the Power board is broken? Check if the power cord co Reconnect the power cord with the nnect well? outlet or Power board. Check if the Power board Replace the Power board pls.
  • Page 48 Service Manual Model No.: 75UF5550 Model Model Model No.: No.: No.: 75UF5550 75UF5550 75UF5550 9-4. Pannel Failure 9-4. 9-4. 9-4. Pannel Pannel Pannel Failure Failure Failure Failure Mode...
  • Page 49 Service Manual Model Model No.: No.: 75UF5550 75UF5550 Model Model No.: No.: 75UF5550 75UF5550...
  • Page 50 Service Manual Model No.: 75UF5550 Model Model Model No.: No.: No.: 75UF5550 75UF5550 75UF5550...
  • Page 51 Service Manual Model No.: 75UF5550 Model Model Model No.: No.: No.: 75UF5550 75UF5550 75UF5550...
  • Page 52 Service Manual Model No.: 75UF5550 Model Model Model No.: No.: No.: 75UF5550 75UF5550 75UF5550...
  • Page 53 Sincere Forever Sincere Forever Sincere Sincere Forever Forever Haier Group Haier Group Haier Haier Group Group Haier Industrial Park, No.1, Haier Road Haier Haier Haier Industrial Industrial Industrial Park, Park, Park, No.1, No.1, No.1, Haier Haier Haier Road Road Road...

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