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Haier LE32B7600 Service Manual

32''/43'' led tv
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32"/43" LED TV
Service
Service
Service
Description
Table of Contents........................................................1
Important Safety Notice...............................................2
Revision List........................................................3
1. General Specification..................................................4
2. Operating Instructions.........................................5
2.1 Remote Control..................................................5
2.2 OSD Menus.......................................................7
3. Input/Output Specification.....................................23
4. Mechanical Instructions........................................28
5. Repair Flow Chart .............................................32
6. PCB Layout .....................................................39
6.1 Main Board .....................................................39
ANY PERSON ATTEMPTING TO SERVICE THIS CHASSIS MUST FAMILIARIZE HIMSELF WITH THE CHASSIS
AND BE AWARE OF THE NECESSARY SAFETY PRECAUTIONS TO BE USED WHEN SERVICING
ELECTRONIC EQUIPMENT CONTAINING HIGH VOLTAGES.
CAUTION: USE A SEPARATE ISOLATION TRANSFOMER FOR THIS UNIT WHEN SERVICING

Table of Contents

Page Description
6.2 Power Board................................ ...................42
6.3 IR Board..................................................46
6.4 KeyBoard..................................................46
7. Adjustment..............................................................47
7.1 WB Adjustment..............................................47
7.2 Firmware Instruction..................................48
8. Block Diagram........................................................51
9. Wiring Diagram........................................................52
10. Schematic Diagram.........................................53
10.1 Main Board...................................................53
10.2 Power Board.................................................62
10.3 IR Board.......................................................65
10.4 KEY Board..................................................66
SAFETY NOTICE
1
LE32B7600/LE43B7600
Page

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  Summary of Contents for Haier LE32B7600

  • Page 1: Table Of Contents

    32”/43″ LED TV LE32B7600/LE43B7600 Service Service Service Table of Contents Description Page Description Page Table of Contents..……........…..1 6.2 Power Board……..…………………... …..…..42 Important Safety Notice........……..2 6.3 IR Board………….……………..……….…..46 Revision List………………………………………………..3 6.4 KeyBoard……..…………………...…….…..46 1. General Specification........………..4 7. Adjustment..............47 2. Operating Instructions..………………….……...……..5 7.1 WB Adjustment..........47 2.1 Remote Control…………….……...…………...……..5...
  • Page 2: Important Safety Notice

    Important Safety Notice Proper service and repair is important to the safe, reliable operation of all Haier Company Equipment. The service procedures recommended by Haier and described in this service manual are effective methods of performing service operations. Some of these service operations require the use of tools specially designed for the purpose.
  • Page 3: Revision List

    Revision List Version Release Date Revision Instructions Customer Model Model LE43B7600 E43G51NCKV6H2NX Sep.18,2016 Initial release LE32B7600 E32G51NCKV6H2NX...
  • Page 4: General Specification

    1. General Specification...
  • Page 5: Operating Instructions

    2. Operating Instructions 2.1 Remote Control...
  • Page 7: Osd Menus

    2.2 OSD Menus...
  • Page 18: Panel Control And Rear Terminal Control

    2.3 Panel Control and Rear Terminal Control...
  • Page 23: Input/Output Specification

    3. Input/Output Specification 3.1 Input Signal Connector HDMI Pin No. Description Pin No. Description TMDS Data2+ TMDS Clock Shield TMDS Data2 shield TMDS Clock- TDMS Data2- TMDS Data1+ Reserved (N.C. on device) TMDS Data1 shield TMDS Data1- TMDS Data0+ DDC/CEC Ground TMDS Data0 shield +5V Power TMDS Data0-...
  • Page 24 3.2 Input Signal Timing...
  • Page 28: Mechanical Instructions

    4. Mechanical Instructions LE32B7600 Step1. Remove the BASE. Step2. Remove the REAR COVER.
  • Page 29 Step3. Remove the MAIN BOARD、POWER BOARD、WIFI Board、BKT IO、SPEAKER. Step4. Remove the BKT_STAND. Step6. PANEL.
  • Page 30 LE43B7600 Step1. Remove the BASE. Step2. Remove the REAR COVER.
  • Page 31 Step3. Remove the MAIN BOARD、POWER BOARD、WIFI Board、BKT IO、SPEAKER. Step4. Remove the BKT_STAND. Step6. PANEL.
  • Page 32: Repair Flow Chart

    5. Repair Flow Chart 1. No power No power (LED “Off”) Check the AC input and Power “On” the power is “ON”? Power board Replace the power board output=12V? Check the IR board and LED Replace the IR board Replace the main board...
  • Page 33 2. Can’t start Can’t start(LED Blue) Replace the power board Power board output=12V? Replace the key board Check the power key is under control? Replace the IR board Check the IR receiver is normal? Replace the main board Replace the Power board...
  • Page 34 3. Abnormal Display Abnormal Display Reset the source Check the source Enter factory mode to do “EEPROM initial”&“Reset” Replace the main board Check the main board Check the LVDS cable Replace the LVDS cable Check the panel Replace the panel...
  • Page 35 4. No display No display (LED Red) Check TV is under control and power Replace the main board on/off by remote control and power key? Check the backlight is “On”? Check the LVDS cable Check the B/L signal is available? Reinsert or replace the LVDS cable Replace main board...
  • Page 36 5. Sound problem No sound or sound abnormal Check the audio source connection and the TV system are correct? Reinsert the audio cable or change the TV system Check the TV is muted, adjust the volume or enter the menu to reset? Enter factory mode to do “Reset”...
  • Page 37 6. Remote control malfunction Remote Control malfunction Check the remote control battery is Replace the battery not properly placed or no power? Use the other remote controls Replace the remote control Whether the IR board is Replace the IR board abnormal? Replace the main board...
  • Page 38 7. OSD is unstable or can’t work normally OSD is unstable or can’t work normally Key board connected properly? Reconnect the key board Replace the button function Buttons are OK? Replace the key board Key board is OK? Enter factory mode to do “Reset” Replace the main board...
  • Page 39: Pcb Layout

    6. PCB Layout 6.1 Main Board 715G6805M0A002004Y...
  • Page 42: Power Board

    6.2 Power Board LE32B7600 715G6934P01002002H...
  • Page 44 LE43B7600 715G7574P0B0040020...
  • Page 46: Ir Board

    6.3 IR Board 715G7266R01000004T 6.4 Key Board 715G7436K01000004K...
  • Page 47: Adjustment

    7. Adjustment 7.1 WB Adjustment White balance adjustment: Turn on the TV, then press “MENU+1999+OK”, it will achieve the factory mode. Current Source is "Ypbpr", and then choose Color temp as Warm / Normal / Cool, use remote control to choose “WD Pattern”...
  • Page 48: Firmware Instruction

    7.2 Firmware Instruction 1. Copy “update_signed.zip” software to USB flash disk (root directory). 2. Insert USB flash disk to TV USB1 Port. 3. AC on.When TV is turned on, select “menu - > Setting - > the Advanced Setting - > Update & reset - > Local Update ”, press update to update the software.
  • Page 49 4. When update finished, TV will restart automatically and go into Android Updating..
  • Page 50 5. When Android Updating finished, select “menu - > Setting - > the Advanced Setting - > About TV” to check software version.
  • Page 51: Block Diagram

    8. Block Diagram...
  • Page 52: Wiring Diagram

    9. Wiring Diagram LE32B7600 Panel 6 Pin 16 Pin CN9101 CN8601 10 Pin CN401 32 Pin Power Board CN403 12 Pin Main Board CN701 MST6852LP CN601 Key Board 4 Pin 5 Pin CN01 IR Board CN202 Speaker R Speaker L...
  • Page 53: Main Board

    LE43B7600 Panel 12 Pin 16 Pin CN9101 CN8603 10 Pin CN401 32 Pin CN403 Power Board 12 Pin Main Board CN701 MST6852LP CN601 Key Board 4 Pin 5 Pin CN01 IR Board CN202 Speaker R Speaker L...
  • Page 54: Schematic Diagram

    10. Schematic Diagram 10.1 Main Board 715G6805M0A002004Y YPbPr Video Input share with CVBS in Y Nearly Connector Nearly IC AV1_IN R102 C102 47NF 16V CVBS0P CVBS0P 6 150OHM +-1% 1/16W R103 C103 47NF 16V CVBS_VCOM CVBS_VCOM 6 DVDD3V3 180R 1/16W 5% COMP_SOY CN111 RCA JACK...
  • Page 55 XTAL 3V3T XTALN C159 L104 L105 C115 R183 C164 27PF 50V FCN101 1nF 50V 8.2NH 27nH 1nF 50V 510K 1% LNA_INP VDD_1P8 RESET X102 16MHz L101 C117 C169 C116 D102 1pF 50V 5P6 50V 1nF 50V C123 LNA_INN XTALP LBAV99LT1G 1UF 10V C165 27PF 50V...
  • Page 56 CEC/ARC HDMI_ARC C501 1UF 10V R503 ARC_SPDIF ARC_SPDIF 6 0R05 1/16W R505 HDMI-CEC HDMI_CEC R514 HDMI_CEC 6 200R 1/16W 5% C503 4.7PF 50V HDMIB_5V R515 HDMIB_HPD HDMIB_HPDIN R517 HDMIB_HPDIN 6 HDMIB_5V AVDD5V_MHL 33R 1/16W 5% R561 MHL_CABLE_DET R558 0R05 1/16W 10R 1/16W 5% HDMI3 MHL_CABLE-DET 6...
  • Page 57 AVDD_DDR_DATA AVDD_DDR_DATA DDR3 solder R402 R404 DDR2 solder R401 BL_DIMMING BRIGHT_ADJ R717 1K 1/16W 5% BRIGHT_ADJ 9 CVBS1 C440 AVDD5V_MHL 47nF 16V HDMIB-CLKN HDMIB-CLKN HDMIB-CLKP Demod_RST MHL_CABLE-DET HDMIB-CLKP Demod_RST 10 MHL_CABLE-DET HDMIB-RX0N KEY 2 HDMIB-RX0N KEY 2 7 HDMIB-RX0P KEY 1 HDMI_CEC HDMIB-RX0P KEY 1 7...
  • Page 58 LVDS Power RXO0- RXO0- PANEL_VCC RXO0+ RXO0+ DVDD3V3 RXO1- RXO1- RXO1+ RXO1+ RXO2- RXO2- RXO2+ RXO2+ RXOC+ RXOC+ RXOC- CN403 R151 RXOC- RXO3- RXO3- RXO3+ RXO3+ NC_4K7 1/16W 5% SELLVDS M_SCL M_SCL M_SDA RXE0- M_SDA RXE0- RXO0+ RXO0- RXE0+ 4,8,10 R154 4,8,10 RXE0+...
  • Page 59 CLOSE POWER POP NOISE +5VSB AC OFF BAS316WS D602 DC OFF R642 5V_SW C664 +12V_AUD FB601 AMP_POWER 1K 1/16W 1% 22UF 10V 120R 6A R646 A_MUTE 5.1K 1% C602 C604 C603 C601 100UF 35V 100UF 35V R654 0.1uF 50V 0.1uF 50V 470R 1/16W 5% Q601 ERV:C...
  • Page 60 +5VSB 5V_SW +3V3SB R706 R722 +3V3SB R707 +3V3SB MAIN POWER 1K 1/16W 5% R735 PS_ON R742 PS_ON PWR_ON_1 4K7 1/16W 5% B ack L ig h t On / Off Q701 R166 PWR_ON_1 BL_DIM BL_ON R701 BL_ON_OFF H I => POW ER _OF F MMBT3904 4K7 1/16W 5% 0R05 OHM...
  • Page 61 POWER DM3V3 VCC3V3 Reset FB103 VCC3V3 NC_120R 3A C192 C188 C126 C130 C190 C191 R127 NC_10UF 6.3V 20% NC_100N 16V NC_100N 16V NC_100N 16V NC_100N 16V NC_100N 16V NC_10K Demod_RST DM1V2 FB104 1.2V C197 NC_120R 3A NC_10UF 6.3V 20% C196 C195 C194 C193...
  • Page 62: Power Board

    10.2 Power Board 715G6934P01002002H (32”) R9161 33ohm 1/4W +/-5% FB9902 HOT COLD 127R C9161 C9162 R9162 1N5 50V 1N5 50V 33ohm 1/4W +/-5% FB9901 R9163 BEAD 33ohm 1/4W +/-5% +12V1 12V Switch +12V' BD9901 KBJ608G-FUC R9164 (option) 33ohm 1/4W +/-5% D9151 R9105 C9105...
  • Page 63 L8602 FB8602 +18V 33uH D8602 VLED+ FB8601 L8601 D8601 BEAD SR506 D8605 NC/1N4148 C8601 C8607 C8605 R8603 R8604 C8606 220uF 50V 100K 0.1uF 50V C8603 C8604 220uF 50V 220uF 50V R8612 R8605 27K 1/8W 1% 10ohm +/-1% 1/8W Q8601 R8619 AOD4126 10 OHM ZD8601...
  • Page 64 C9921 1NF 250V-NC R8612 1K OHM +-5% 1/8W-NC Q8605 C9922 2N7002K-NC 127R-NC 1NF 250V R8632 100KOHM +-5% 1/8W-NC Haier AP 43" R8611 100KOHM +-5% 1/8W-NC 43" Backlight SPEC: 31 ~ 37 V/ 1.675 A PLTVGQ371XAA2 FB9907 C9923 100PF 250V 127R-NC...
  • Page 65: Ir Board

    10.3 IR Board 715G7266R01000004T R204 NC/220 OHM 1/10W R205 NC/220 OHM 1/10W R202 220 OHM 1/10W CN202 R203 220 OHM 1/10W U201 IR-in IR-in LED201 12-22/BHR6C-C31/2C R201 15K 1/16W 5% Vout R206 100 OHM 1/10W TSOP75438TR CONN C202 2.2uF 10V...
  • Page 66: Key Board

    10.4 Key Board 715G7436K01000004K CN01 MENU VOL+ VOL- KEY 1 POWER INPUT KEY 2 CONN 100NF 100NF 0.49V 1.65V 2.27V 1.65V 0.49V 0.81V...

This manual is also suitable for:

Le43b7600