Haier LE43B7500 Service Manual Download Page 34 | Manualshive

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34

6. Remote control malfunction

Remote Control malfunction

Replace the battery

Replace the remote control

Whether the IR board is

abnormal?

Yes

No

Replace the IR board

Replace the main board

No

Yes

No

Yes

Use the other remote controls

Check the remote control battery is
not properly placed or no power?

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Summary of Contents for LE43B7500

Page 1: ...Layout 36 6 1 Main Board 36 6 2 Power Board 38 6 3 IR Board 41 6 4 KeyBoard 41 7 Adjustment 42 7 1 WB Adjustment 42 7 2 Firmware and DDC Instruction 43 8 Block Diagram 44 9 Wiring Diagram 45 10 Schem...

Page 2: ...s might create shock fire or other hazards Under no circumstances should the original design be modified or altered without written permission from Haier Haier assumes no liability express or implied...

Page 3: ...3 Revision List Version Release Date Revision Instructions Customer Model Model A00 Mar 27 2015 Initial release LE43B7500 E43E41NCDL6HNNX...

Page 4: ...4 1 General Specification...

Page 5: ...5 2 Operating Instructions 2 1 Remote Control...

Page 6: ...6...

Page 7: ...harpness To improve details Not available in PC mode Color Temp Normal Natural whitish color Cool Bluish white color Warm Reddish white color Advanced control Noise Reduction To filter out and reduces...

Page 8: ...button on the remote control Balance Adjust the balance between left and right speakers to adapt to your listening position Bass Adjust the bass effect Increases or decreases lower pitched sounds Tre...

Page 9: ...by condition and can be turned on by press Power key on remote control Power On TV will turn on as soon as AC power switch is turned on Keep Last Memory TV will turn on as per the last power on setti...

Page 10: ...to Off 10 20 30 40 50 60 90 120 minutes Auto Sleep Auto Sleep can be set to Off 1 Hour 2 Hours or 5 Hours Shop Mode When Shop Mode is on the image mode automatically switches into the vivid mode and t...

Page 11: ...issed channels to the end of the list without disturbing previously stored channels Consequently it takes more time than Auto channel scan Manual Search Search for the channels manually and store it t...

Page 12: ...This setup function is available in computer mode Items Decsription Auto Adjust Press arrow Button to adjust the screen automatically to the optimal position of the picture H position Adjusts the hor...

Page 13: ...t keys to select a channel within the channel range Input Source Change Select the input source with TV on DC ON OFF by using the left and right keys to select a start input source within the input so...

Page 14: ...displayed as a folder on the screen as shown below Press OK key to view subfolder or files in the USB drive Note Files of selected Media type can only be viewed through USB Media type can be any one a...

Page 15: ...following Menu setup shown above 1 Play Pause Play Pause photo play 2 Repeat Select the repeat mode as None Repeat One Repeat All 3 Random Select Shuffle mode as Shuffle Off Shuffle On 4 Duration Sele...

Page 16: ...urn on or off lyric display 8 Audio Only Select it to turn off dispaly and to get only sound from TV Playing Video files 1 Thumbnail of the available video files will be displayed on the screen If no...

Page 17: ...t the required file and press OK key 3 Press keys to browse the text USB menu settings for text read Press Menu key to get following Menu setup shown below 1 Play Pause Play Pause text read 2 Repeat S...

Page 18: ...mance failure 3 The voltage supplied to USB interface is 5V and the most electrical current is 500mA When some interface criteria of USB devices are different from standard USB protocol digital multim...

Page 19: ...19 2 3 Panel Control and Rear Terminal Control...

Page 20: ...20...

Page 21: ...21...

Page 22: ...22...

Page 23: ...13 H Sync 6 Red Ground 14 V Sync 7 Green Ground 15 Serial Clock for DDC 8 Blue Ground HDMI Pin No Description Pin No Description 1 TMDS Data2 11 TMDS Clock Shield 2 TMDS Data2 shield 12 TMDS Clock 3 T...

Page 24: ...nded resolution DVI PC HDMI Input Signal Reference Table When DVI port is being used connect the DVI port of video device to your TV set with a DVI to HDMI line and set up the output signal of the vid...

Page 25: ...ntal Frequency kHz Vertical Frequency Hz SD 640 480p 25 175 60 SD 720 480i 15 734 60 SD 720 480p 31 5 60 SD 720 576i 15 625 50 SD 720 576p 31 25 50 HD 1280 720p 37 5 50 HD 1280 720p 45 60 HD 1920 1080...

Page 26: ...26 4 Mechanical Instructions Step1 Remove the BASE Step2 Remove the REAR COVER...

Page 27: ...27 Step3 Remove the MAIN BOARD POWER BOARD BKT IO SPEAKER Step4 Remove the BKT_STAND Step5 Remove the DECO...

Page 28: ...28 Step6 PANEL...

Page 29: ...Chart 1 No power No power LED Off Check the AC input and the power is ON Power On Check the IR board and LED Replace the IR board Replace the main board Power board output 5V Replace the power board...

Page 30: ...lue Replace the main board Replace the Power board No Yes No Yes No No Power board output 12V Check the power key is under control Check the IR receiver is normal Replace the power board Replace the k...

Page 31: ...play Reset the source Check the source Check the panel Replace the main board Replace the LVDS cable Replace the panel No No No Yes Yes Yes No No Check the main board Enter factory mode to do EEPROM i...

Page 32: ...the Panel No display LED Red Replace the main board Check the backlight is On Check the LVDS cable Reinsert or replace the LVDS cable Replace the main board Replace the Panel No Yes Yes No Yes No No Y...

Page 33: ...e or enter the menu to reset Reinsert the audio cable or change the TV system Replace the cable Replace the speaker Replace the main board No Yes Check the speaker resistance value is in spec Remark T...

Page 34: ...unction Replace the battery Replace the remote control Whether the IR board is abnormal Yes No Replace the IR board Replace the main board No Yes No Yes Use the other remote controls Check the remote...

Page 35: ...board connected properly Reconnect the key board Buttons are OK Replace the button function Yes No Key board is OK Replace the key board Replace the main board No Yes No No OSD is unstable or can t w...

Page 36: ...36 6 PCB Layout 6 1 Main Board 715G6686M01002004K...

Page 37: ...37...

Page 38: ...38 6 2 Power Board 715G6679P02001002M...

Page 39: ...39...

Page 40: ...40...

Page 41: ...41 6 3 IR Board 715G6721R01002004I 6 4 Key Board 715G6715K01002004I...

Page 42: ...Gain bar to adjust the R G B value the temperature adjustment meet to the required specification range White balance value checking Check color temperature of AV HDMI VGA source is within the specifi...

Page 43: ...Copy software to USB flash disk root directory 2 Open the TV 3 Insert USB to TV Choose Enter After USB SW update OK TV will reboot 4 Press Menu 8893 then TV will enter factory menu Check SW version i...

Page 44: ...44 8 Block Diagram VGA YPbPr HDMI1 AV1 ATV DTV USB HDMI2 AV2 IIC CVBS_OUT IF SPEAKER Headphone APA2614 APA2176 MST6931 LVDS Panel...

Page 45: ...g Diagram Panel Speaker L Speaker R Key Board 4 Pin CN01 16 Pin 14 Pin 9 Pin 30 Pin CN601 CN8101 CN9100 CN401 IR Board 5 Pin CN201 Power Board 12 Pin CN701 Main Board 4 Pin CN403 MST6931XP CN8601 CN91...

Page 46: ...03 MMBT3904 R716 4K7 1 16W 5 R713 10K 1 16W 5 C702 NC 10N 50V Q706 MMBT3904 R703 NC 10K R722 10K 1 16W 5 R723 4K7 1 16W 5 C723 10uF C724 100NF 16V 5V_Standby 5V_Standby 5V_Normal 5V_Normal 5V_Normal 1...

Page 47: ..._DA 122 RX2N_D 126 RX2P_D 127 DDCDD_CK 125 LINEIN_R3 39 LINEIN_L4 40 DP_P1 102 DM_P1 101 GPIO11 103 U402 MX25L3206EM2I 12G CS 1 SO SIO1 2 WP 3 GND 4 SI SIO0 5 SCLK 6 HOLD 7 VCC 8 C428 100N 16V C434 10...

Page 48: ...438 NC 0oHM Q403 MMBT3904 C401 220N 25V R441 10K 1 16W 5 R437 0oHM R443 10K 1 16W 5 R442 4K7 1 16W 5 R440 NC 1K 1 4W C437 100NF 16V R439 100K 1 16W DGND 5V_Standby PANEL_VCC P12V DGND DGND R473 47K ON...

Page 49: ...10V R123 12K 1 16W R129 33R 1 16W 5 ZD102 NC MLVG0402 1 2 C121 1N50V C125 100N 16V ZD115 NC MLVG0402 1 2 C102 47nF 16V R132 68OHM 1 16W C122 47nF 16V 470pF 50V C118 C106 47nF 16V R136 10K 1 16W 5 C11...

Page 50: ...2 HDMI0_DDC_SCL 2 HDMI0_CLK 2 HDMI_CEC 2 HDMI0_DDC_SDA 2 HDMI1_D1 2 HDMI1_DDC_SDA 2 HDMI1_D0 2 HDMI1_CLK 2 HDMI1_D0 2 HDMI1_CLK 2 HDMI1_D2 2 HOTPLUG1 2 R524 4 99ohm 1 16W 1 HDMI1_DDC_SCL 2 HDMI1_D2 2...

Page 51: ...ictory Electronics Co Ltd Key Component A B 7 9 Wednesday Nov ember 20 2013 07 Tuner C127 10uF 10V C132 1N 50V C135 NC 56pF 50V R143 100OHM C137 100N 16V R144 10K C141 100NF 16V L104 0R05 1 10W R146 0...

Page 52: ...C633 220NF 25V C632 1UF 10 16V C635 220NF 25V R613 100OHM R623 10OHM1 16W C613 100N 50V C637 330pF 50V R611 10K 1 16W 5 Q601 MMBT3904 5V_Normal 5V_Normal P24V PVDD PVDD PVDD PVDD AMP_MUTE Low Mute dis...

Page 53: ...6W R446 10K 1 16W 5 KEY_ADC1 DGND LEDR IRRX1 POWER_KEY KEY1 SAR1 POWER LED R LED G IRIN POWER_KEY KEY_ADC1 KEY0 SAR0 IRRX1 R476 NC 0R05 OHM LEDR 12 LEDR OEM MODEL Size Rev Date Sheet of TPV MODEL PCB...

Page 54: ...HEAT SINK 1 2 3 4 L9902 12mH 1 2 4 3 SG9901 NC DSPL 501N A21F F9902 5A 250V CN9902 SOCKET 1 2 C9914 220PF 250V C9913 220PF 250V FB9901 BEAD 1 2 C9911 47PF 250V C9901 470NF 275V RV9901 620V C9902 470NF...

Page 55: ...C9808 47PF D9801 FMNS 1106S R9808 33R 1 8W 5 R9813 10K 1 8W C9804 10UF 50V R9805 20K 1 4W R9801 0 1R C9820 1UF 450V C9807 220pF 50V FB9802 BEAD 1 2 C9806 470NF 50V C9811 47P 50V R9802 1M 1 1 4W R9803...

Page 56: ...100P 50V C9109 470UF 25V Q9105 TK22A10N1 R9403 1K 1 4W C9119 NC C9123 NC R9137 NC R9118 1K OHM 5 1 8W R9104 10R 1 8W 5 C9129 NC R9142 22R R9133 27 OHM 1 4W R9131 100K 1 8W 1 FB9102 NC 1 2 R9406 10K 1...

Page 57: ...0 OHM 1 4W R8143 200 OHM 1 4W R8155 300 OHM 1 4W R8157 300 OHM 1 4W C8131 NC 1NF 500V C8122 NC 100P 50V R8131 1 2R 1 12V C8611 NC C8129 100N 50V L8602 NC R8171 0 OHM 5 1 8W LED current setting 40 inch...

Page 58: ...ODEL Size Rev Date Sheet of TPV MODEL PCB NAME T P V Top Victory Electronics Co Ltd Key Component A A 2 2 02 IR LED IR C201 2 2uF 10V VCC R201 15K 1 16W 5 U201 TSOP75438TR GND 1 VCC 2 Vout 3 GND 4 LED...

Page 59: ...e Rev Date Sheet of TPV MODEL PCB NAME T P V Top Victory Electronics Co Ltd Key Component A Custom 2 2 Friday December 06 2013 02 Keypad 1 070V 1 985V 2 411V 1 497V 0 239V 0 660V R06 680R 1 10W 1 R07...

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