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Haier LE40B7000TF Service Manual

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SERVICE MANUAL
LED TV
LE40B7000TF
Model No.
TP.S512.PB83
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.

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Summary of Contents for Haier LE40B7000TF

  • 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 Model No.: LE40B7000TF 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.
  • Page 3 Service Manual Model No.: LE40B7000TF 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.

  • Page 4: Chapter 1. General Information

    Service Manual Model No.: LE40B7000TF 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.

  • Page 5: About Lead Free Solder (Pbf)

    Service Manual Model No.: LE40B7000TF 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.
  • Page 6 Service Manual Model No.: LE40B7000TF 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.

  • Page 7: Ordering Spare Parts

    Service Manual Model No.: LE40B7000TF 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.
  • Page 8 Service Manual Model No.: LE40B7000TF 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.

  • Page 9: Chapter 2. Specification

    Service Manual LE40B7000TF Model No.: Chapter 2. Specification 2-1. Specification list LE40B7000TF Model Screen Size 40" Aspect Ratio 16:9 Resolution 1920x1080 Brightness (cd/m² ) Contrast 1500:1 Response Time (ms) Angel of View H:170° , V:160° Color Display 16.7M OSD Language...

  • Page 10: External Pictures (Four Faces)

    Service Manual Model No.: LE40B7000TF 2-2. External pictures (four faces) Front Side Up Side...
  • Page 11 Service Manual Model No.: LE40B7000TF Right Side Back Side...

  • Page 12: Chapter 3. Disassemble And Assemble

    Service Manual LE40B7000TF Model No.: Chapter 3. Disassemble and Assemble LE40B7000TF 3-1. 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.

  • Page 13: Remove The Remote Control Board

    Service Manual LE40B7000TF Model No.: 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.

  • Page 14: Chapter 4. Location Of Controls And Components

    Service Manual Model No.: LE40B7000TF Chapter 4. Location of Controls and Components 4-1. Board Location A Board B Panel Parts number Description DH1U71D0M04M A Board power-main board 2002CM39500630 B Panel LCD Panel...

  • Page 15: Mainboard

    Service Manual Model No.: LE40B7000TF 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 LED Backlight interface CN804/CN805 Pin number Signal name...
  • Page 16 Service Manual Model No.: LE40B7000TF...

  • Page 17: Lcd Panel

    Service Manual Model No.: LE40B7000TF 4-3. LCD Panel LE40B7000TF Backlight Unit LVDS CONNECTOR CNF1...
  • Page 18 Service Manual Model No.: LE40B7000TF...

  • Page 19: Chapter 5. Installation Instructions

    Service Manual LE40B7000TF Model No.: Chapter 5. Installation Instructions 5-1. Accessories Batteries Remote Control...

  • Page 20: External Equipment Connections

    Service Manual Model No.: LE40B7000TF 5-2. External Equipment Connections Antenna Connection Connect a DVD Player or VCR to Your TV Connect your aerial to the back of the TV into the ANTENNA IN socket. There are two ways in which you can connect a DVD player or VCR to your TV.

  • Page 21: Chapter 6. Operation Instructions

    Service Manual Model No.: LE40B7000TF Chapter 6. Operation Instructions 6-1. Front Panel Controls VOL+ Press to increase the volume. POWER Press to turn the TV on and off. MENU Press to select the main menu. TV channel down. TV channel up.

  • Page 22: Back Panel Controls

    Service Manual Model No.: LE40B7000TF 6-2. Back Panel Controls Mini AV intput Mini YPbPr intput Coax Coaxial input SCART input PC Audio input input input Earphone output HDMI1 input 10 HDMI2(ARC) input 11 HDMI3 input 12 USB1 IN input 13 USB2 IN...

  • Page 23: Setting Up Your Remote Control

    Service Manual Model No.: LE40B7000TF 6-3. Setting Up Your Remote Control When using the remote control, aim it towards the remote sensor on the TV.
  • Page 24 RB127 RB123 RB144 RB124 CB118 RB145 RB126 RB146 RB149 T3.15AH 250VAC CNB1 TB101 EB103 Vbridge CB114 RB119 EB105 LCB1 Vbridge RB121 EB104 RB140 CXB2 CYB1 RB117 RB120 DB102 MOVB1 RB118 RB122 DB103 CXB1 CYB2 RB147 SGND NTCB1 LCB2 SGND DB107 DB106 BB101 RB128...
  • Page 25 Power Tree 1200mA UD41 1V0_M DCDC 50mA 3V3_STB SIS23X 460mA UL11 3V3_M 230mA UL61 1V5_DDR DDR3 QM32 USBA_5V M_5V DCDC 5V_STB 500mA >4.75V@500mA 260mA Max:3600mA WPM2341 Max:2380mA 3V3_Tun Max:1380mA TUNER 395mA 3V3_Demo Demo 1000mA PVCC PANEL 60mA M_5V 1.8V_AMP 20mA 3V3_M AMP-174 1500mA...
  • Page 26 0.1uF-0402-X7R-± 10%-16V SMD5845-4R7M-032 CD43 0.1uF-0402-X7R-± 10%-16V PWM-DIM TEST CD10 CD18 CD41 PCD0504A-2R2M-T PWM-DIM UD41 PWM-REF TEST LD43 PWM-REF TEST 1V0_M BL_PWM RG16 PWM-DIM RD41 5V_STB POW_EN 1V0_M PWM-REF/ PWM-REF ED30 RD42 CD56 TEST RD43 4K7ohm-0402-± 5%-1/16W CD29 CD28 CD20 CD25 CD44 CD45 4K7ohm-0402-±...
  • Page 27 YPbPr_Pb RI38 CI38 HD1_Pb RI33 220ohm-0402-±5%-1/16W 5V_STB 0.047uF-0402-X7R-±10%-16V 75ohm-0402-±5%-1/16W 501070114 4K7ohm-0402-±5%-1/16W 4K7ohm-0402-±5%-1/16W VGA_RIN YPbPr_Pr RI34 CI34 HD1_Pr AV18 YPbPr_Pb YPbPr_Y 47ohm-0402-±5%-1/16W 75ohm-0402-±5%-1/16W RI31 220ohm-0402-±5%-1/16W 47ohm-0402-±5%-1/16W 0.047uF-0402-X7R-±10%-16V YPbPr_Pr 75ohm-0402-±5%-1/16W 330ohm-0402-±5%-1/16W 0.047uF-0402-X7R-±10%-16V PJ-322A (H=7.0mm)- VGA_TXD RI40 CI40 HD1_SOG VGA_SDA RV16 VGA_GIN HS_VGA YPbPr_Y RI36 CI36...
  • Page 28 HDMIA_5V HDMIA_RX2_DP RX2+ HDMIA_5V HDMIA_RX2_DN RX2- HDMIA_RX1_DP SHELL(GND) RX1+ HDMIA_RX1_DN HOTPLUG_A/ RX1- HDMIA_RX0_DP SHELL(GND) RX0+ HDMIA_RX0_DN RX0- HDMIA_RX_CLK_DP HOTPLUGA RXC+ HDMIA_RX_CLK_DN 1Kohm-0402-± 5%-1/16W RXC- CEC_A RH14 HDMI-CEC LMBT3904LT1G SHELL(GND) 10Kohm-0402-±5%-1/16W HDMIA_SCL/ RH15 HDMIA_SCL 10Kohm-0402-±5%-1/16W HDMIA_SDA/ RH16 HDMIA_SDA SHELL(GND) HDMIA_5V RH17 100ohm-0402-±5%-1/16W HOTPLUG_A/ 1000pF-0402-X7R-±10%-50V...
  • Page 29 1Kohm-0402-±5%-1/16W SVIDEO1_C 0.1uF-0402-X7R-±10%-16V AV_Y0/C0 SVIDEO1_Y 1uF-0402-X5R-± 20%-6.3V AV_Y1 AV_IN 1uF-0402-X5R-± 20%-6.3V 47ohm-0402-±5%-1/16W AV_Y2 SCART_VI ANALOG VGA_RIN VGA_R0_REF AU_VBG AUDIO EARPHONE_ROUT XTALI 0.047uF-0402-X7R-±10%-16V AV_Y3 YPP_R0 AU_VBG HP_R OSCI_24M SPI_CLK SPI_CLK VIDEO VGA_R0_REF EARPHONE_LOUT XTALO AV_Y4 YPP_R0_REF HP_L OSCO_24M SPI_DO SPI_DO IN/OUT HIGH VGA_GIN SC_RI...
  • Page 30 1V0_M 3V3_M AVDD1P0_HDMI AVDD3P3_HDMI SIS231C1CI 0ohm-0402-± 5%-1/16W 0ohm-0402-± 5%-1/16W C384 1V5_DDR 1uF-0402-X5R-± 20%-6.3V 1uF-0402-X5R-± 20%-6.3V 1V0_M OVDD1P5 OVDD1P5 IVDD1P0 OVDD1P5 IVDD1P0 IVDD1P0 IVDD1P0 IVDD1P0 3V3_M IVDD1P0 3V3_M IVDD1P0 OVDD3P3 IVDD1P0 3V3_M_DDR OVDD3P3 IVDD1P0 OVDD3P3 IVDD1P0 OVDD3P3 IVDD1P0 0ohm-0402-± 5%-1/16W OVDD3P3 IVDD1P0 1uF-0402-X5R-±...
  • Page 31 EARPHONE_LOUT CA10 PH-ALOUT AMPVCC CA23 EARPHONE_ROUT PH-AROUT AV30 NC/SK34A-SMA 470uF-16V-±20%-8× 12-105 -XL 10uF-0603-X5R-±20%-6.3V 0.1uF-0603-X7R-±10%-50V 10uF-0603-X5R-±20%-6.3V PH-ALOUT AVCC AMPVCC 180ohm-0402-±5%-1/16W 180ohm-0402-±5%-1/16W PH-AROUT RA94 10ohm-0603-±5%-1/10W 4700pF-0402-X7R-±10%-50V PH-DET 100ohm-0402-±5%-1/16W AMPVCC 4700pF-0402-X7R-±10%-50V 0.033uF-0402-X7R-±10%-16V 0.1uF-0402-X7R-±10%-16V 0.1uF-0402-X7R-±10%-16V 0.1uF-0402-X7R-±10%-16V 1000pF-0402-X7R-±10%-50V NC/100Kohm-0402-±5%-1/16W AMP_MUTE/ PJ-339 PVCCL 0ohm-0402-±5%-1/16W NC/0.22uF-0805-X7R-±10%-50V 1Kohm-0402-±5%-1/16W FAULT PVCCL NC/0.22uF-0805-X7R-±10%-50V...
  • Page 32 5V_M 3V3_Tun 3V3_STB 0ohm-0402-± 5%-1/16W CT17 CT31 3V3_Tun 750Kohm-0402-± 5%-1/16W 16MHz-± 20PPM-20PF-HC-49S 1uF-0402-X5R-± 20%-6.3V 0.1uF-0402-X7R-± 10%-16V NC/10uF-0805-X5R-± 10%-10V 0.1uF-0402-X7R-± 10%-16V 10uF-0603-X5R-± 20%-6.3V 1.8VRF NC/0.1uF-0402-X7R-± 10%-16V NC/LC1117CLTR33 0.1uF-0402-X7R-± 10%-16V NC/33ohm-0402-± 5%-1/16W NC/27pF-0402-NPO-± 5%-50V 3V3_Tun 4K7ohm-0402-± 5%-1/16W 4K7ohm-0402-± 5%-1/16W 33ohm-0402-± 5%-1/16W 33ohm-0402-± 5%-1/16W CT55 RT65 1000pF-0402-X7R-±...
  • Page 33 +3V3_Demo +3V3_Ana_Demo LT10 5V_M +3V3_Demo +1V2_Demo 0ohm-0402-± 5%-1/16W CT43 0.1uF-0402-X7R-± 10%-16V CT46 CT48 CT45 CT49 CT50 CT51 CT52 Demo_TS_D0 TSI_D0 Demo_TS_D1 TSI_D1 Demo_TS_D2 TSI_D2 LC1117CLTR33 Demo_TS_D3 TSI_D3 10uF-0805-X5R-± 10%-10V 10uF-0603-X5R-± 20%-6.3V LC1117CLTRAD 10uF-0603-X5R-± 20%-6.3V 0.1uF-0402-X7R-± 10%-16V 0.1uF-0402-X7R-± 10%-16V 0.1uF-0402-X7R-± 10%-16V 0.1uF-0402-X7R-±...
  • Page 34 CA60 3V3_AMP 3V3_M AMPVCC XTALO_AMP CA45 CA55 RA18 CA52 CA53 CA32 CA59 NC/1uF-0603-X5R-± 10%-25V XTALI_AMP NC/33pF-0402-NPO-± 5%-50V NC/0.1uF-0402-X7R-± 10%-16V NC/33pF-0402-NPO-± 5%-50V NC/10uF-0603-X5R-± 20%-6.3V NC/0.1uF-0402-X7R-± 10%-16V NC/1Mohm-0402-± 5%-1/16W NC/YDA174-QZ NC/FCM1005KF-121T06(120ohm-500mA) NC/10uF-0805-X5R-± 10%-16V( NC/24.576MHz-± 30PPM-20PF-HC-49S-SMD 1V8_AMP DVDD18 OPEN AMPVCC GPIO6 PVDDPL LOUTP/ GPIO5 OUTPL 5V_M...
  • Page 35 Service Manual Model No.: LE40B7000TF 7-2 . Wiring Connection Diagram...

  • Page 36: Chapter 8. Measurements And Adjustments

    Service Manual Model No.: LE40B7000TF 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: Input “8893”, System will be into the factory mode menu when 2 steps above are done.

  • Page 37: Picture

    Service Manual Model No.: LE40B7000TF 8-2-2. Picture Mode Adjust the Picture Mode,Picture Curve: 1)Brightness; 2)Contrast; 3)Sharpness; 4)Color; 5)Tint 8-2-3. ColorTmp Mode Adjust the ColorTmp Mode, White Balance : 1)R Gain; Gain; Gain; 4)R Offset; 5)G Offset; 6)B Offset; 7)Gamma Table.
  • Page 38 Service Manual Model No.: LE40B7000TF 8-2-4. Audio Mode Adjust the values of Audio Mode, 1) Treble; 2) Bass. 8-2-5. Misc 1)Burn 2)IF AGC; 3)IF AGC_L; 4)ATS; 5)WSS; 6)DTG Scan; 7)ADC White Balance; 8)Auto Power On; 9)Back Light; 10)LCN Switch; 11)AGC Mode.

  • Page 39: Software Update

    Service Manual Model No.: LE40B7000TF 8-3. Software Update 8-3-1. SIS231C1CI 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;...

  • Page 40: Chapter 9. Trouble Shooting

    Service Manual Model No.: LE40B7000TF Chapter 9. Trouble shooting 9-1. Simple check Verify if the television is properly plugged Verify if the television is properly supplied power No picture/ No sound Verify if electricity is available. Verify if correct signals are input...

  • Page 41: Mainboard Ic Introduction

    Service Manual Model No.: LE40B7000TF 9-2. Mainboard IC Introduction Top view...
  • Page 42 Service Manual Model No.: LE40B7000TF Bottom view...
  • Page 43 Service Manual LE40B7000TF Model No.: 1. Voltage convertor 5V to 3.3V for SIS231C1CI (U1)—LC1117CLTR33 (UL1) 2. DC/DC convertor 12V-5V for SIS231C1CI (U1)/Tuner/DDR/USB—RT7257GHZSP（UD1） DC/DC convertor 12V-1.0V for SIS231C1CI (U1)—RT7237CHGSP（UD4） DDR—NT5CB64M16FP-DH（U2） Mainchip—SIS231C1CI (U1)    Main Flash Memory— (U5) —LC1117CLTRAD 7. voltage convertor 5V to 1.5V_DDR (UL61) 8.

  • Page 44: Mainboard Failure Check

    Service Manual Model No.: LE40B7000TF 9-3. Mainboard Failure Check No picture but have sound Check the power output Change the Power Board There’s something wrong Check the CN6 (INVERTER) with FRC Backlight on/off Verify if the DC/DC convertor can output the...
  • Page 45 Service Manual Model No.: LE40B7000TF 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 46 Service Manual Model No.: LE40B7000TF No sound No picture Verify if the Power has Change the 5Vstb output Power supply Verify if CN4 Pin3/4 has 5V Change Power board input Verify if CN4 Pin1 has 12V Change Power board input...
  • Page 47 Service Manual Model No.: LE40B7000TF 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 48 Service Manual Model No.: LE40B7000TF 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...
  • Page 49 Service Manual Model No.: LE40B7000TF 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 50: Pannel Failure

    Service Manual Model No.: LE40B7000TF 9-4. Pannel Failure Failure Mode...
  • Page 51 Service Manual LE40B7000TF Model No.:...
  • Page 52 Service Manual LE40B7000TF Model No.:...
  • Page 53 Service Manual Model No.: LE40B7000TF...
  • Page 54 Service Manual Model No.: LE40B7000TF...
  • Page 55 Sincere Forever Haier Group Haier Industrial Park, No.1, Haier Road 266101, Qingdao, China http://www.haier.com ted in China...

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