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32&50" LCD 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
2.3 Panel Control And Rear Terminal Control............19
3. Input/Output Specification.....................................23
4. Mechanical Instructions........................................26
5. Repair Flow Chart .............................................31
6. PCB Layout .....................................................38
6.1 Main Board .....................................................38
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
All manuals and user guides at all-guides.com
Table of Contents
Page Description
6.2 Power Board................................ ...................40
6.3 IR Board..................................................46
6.4 KeyBoard..................................................46
7. Adjustment..............................................................47
7.1 WB Adjustment..............................................47
7.2 Firmware and DDC Instruction..............................48
8. Block Diagram........................................................49
9. Wiring Diagram.......................................................50
10. Schematic Diagram.........................................52
10.1 Main Board...................................................52
10.2 Power Board.................................................60
10.3 IR Board.......................................................67
10.4 Key Board..................................................68
SAFETY NOTICE
1
LE32B7500-LE50B7500
Page
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Summary of Contents for Haier LE32B7500
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Page 1: Table Of Contents
All manuals and user guides at all-guides.com 32&50″ LCD TV LE32B7500-LE50B7500 Service Service Service Table of Contents Description Page Description Page Table of Contents..……........…..1 6.2 Power Board……..…………………... …..…..40 Important Safety Notice........……..2 6.3 IR Board………….……………..……….…..46 Revision List………………………………………………..3 6.4 KeyBoard……..…………………...…….…..46 1. General Specification........………..4 7. -
Page 2: Important Safety Notice
All manuals and user guides at all-guides.com 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. -
Page 3: Revision List
All manuals and user guides at all-guides.com Revision List Version Release Date Revision Instructions Customer Model Model Sept.5,2014 Initial release E50E21NCDLH6NNX LE50B7500 Sept.26,2014 Add New Model E50E21NCDLH62NX E32E41NCDLH6NNX Dec.10,2014 Add New Model LE32B7500 E32EE1NCDLH62NX Mar.6,2015 Add New Model LE32B7500 E32EE1NCDLH6NNX Mar.30,2015 Add New Model LE50B7500 E50E41NCDL6HNNX... -
Page 4: General Specification
All manuals and user guides at all-guides.com 1. General Specification... -
Page 5: Operating Instructions
All manuals and user guides at all-guides.com 2. Operating Instructions 2.1 Remote Control... - Page 6 All manuals and user guides at all-guides.com...
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Page 7: Osd Menus
All manuals and user guides at all-guides.com 2.2 OSD Menus Picture Setup Items Description Personal User can set their favorite setting. Vivid For Enhances picture contrast and sharpness. For standard picture settings. Recommended for home Standard Smart Picture entertainment. Decrease backlight level to save the power For viewing film-based content. - Page 8 All manuals and user guides at all-guides.com Audio Setup Items Description Standard Suitable for spoken dialog. Music Ehance treble and bass Speech Ehance treble and keep the bass at medium level Smart Sound Personal Adjust sound mode as per personal requirement. Sound Mode can also be accessed by pressing the S.MODE button on the remote control.
- Page 9 All manuals and user guides at all-guides.com 48”/50” Items Description Select an OSD menu language can be displayed. Default English is selected as menu Menu Language language. Select a Teletext language in TTX mode. West: Western Europe TTX Language East: Eastern Europe Russian: Russian Arabic: Arabic Resize the aspect ratio of the picture for optimum viewing.
- Page 10 All manuals and user guides at all-guides.com Once : TV will turn on only once at specified time and channel/source and resets to Off. Timer: Set turn on/off time Power On Setting: Select channel/source when turn on TV Power Off Timer : Turn off the TV at the specified time. On : TV will turn off daily at specified time.
- Page 11 All manuals and user guides at all-guides.com Channel Setup This setup is available in TV mode only. Items Description TV automatically searches for the channel in the available frequency band and stores sequentially. Select TV menu. Auto Search Select Auto search and press OK key or ► arrow key to tune channels automatically and store.
- Page 12 All manuals and user guides at all-guides.com Manual search description 1. Select TV menu and select Channels. 2. Select Manual Search and press OK key or ►arrow key to get Manual search sub-menu. 3. Select Start Frequency to input frequency you want to start 4.
- Page 13 All manuals and user guides at all-guides.com Hotel Model Please press "Menu +100108+ Back " key to enter Hotel menu. Items Decsription Hotel Mode Operation Set Hotel model on/ off. Max Volume Set max volume limited. This option allows you to set Max Vloume level. Volume Default Select default volume for hotel mode reset.
- Page 14 All manuals and user guides at all-guides.com USB Media Center TV USB port can be used to view JPEG photos, play mp3 music and Video files,and read text present in USB devices. Entering to USB Media Press USB key on remote to get USB Media menu as shown above Or Press the Source key and keys on remote and select USB source to get USB Media menu as shown above.
- Page 15 All manuals and user guides at all-guides.com Viewing Photos 1. Thumbnail of the available images will be displayed on the screen. If no images are displayed then select the folder containing the Photos. 2. Select particular image and press OK key to display it in full screen. Slide show starts automatically when image is viewed in full screen.
- Page 16 All manuals and user guides at all-guides.com USB menu settings for Music play Press Menu key to get following Menu setup shown above. 1. [Play/Pause]: Play/Pause music play. 2. [Repeat]: Select the repeat mode as None, Repeat One, Repeat All. 3.
- Page 17 All manuals and user guides at all-guides.com 4. [Smart Picture]: Select the picture mode as Vivid, Standard, Movie, Personal, Eco. 5. [Screen Mode]: Select the screen mode as 4:3, Zoom1, Zoom2, 16:9. 6. [Subtitle Display]: Select the subtitle mode of the movie. 7.
- Page 18 All manuals and user guides at all-guides.com Format File Extension Codec Data Rate Real media .RM/.RMVB RealVideo 8/9 20Mbit/sec Movie MPEG1/2 .DAT/.MPG MPEG-1/2 Video 20Mbit/sec MPEG4 .AVI /.MP4 H.264 20Mbit/sec Format Note Text Remarks: 1. USB interface of digital multimedia player is not all-purpose. So when some USB devices could not be recognized, the problem is usually not the performance failure but due to device driver.
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Page 19: Panel Control And Rear Terminal Control
All manuals and user guides at all-guides.com 2.3 Panel Control and Rear Terminal Control... - Page 20 All manuals and user guides at all-guides.com...
- Page 21 All manuals and user guides at all-guides.com...
- Page 22 All manuals and user guides at all-guides.com...
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Page 23: Input/Output Specification
All manuals and user guides at all-guides.com 3. Input/Output Specification 3.1 Input Signal Connector D-SUB Pin No. Description Pin No. Description Red Video No Pin Green Video Sync Ground Blue Video Serial Data for DDC Ground H. Sync Red Ground V. - Page 24 720 × 400 31.469 70.087 800 × 600 37.879 60.317 1024 × 768 48.363 60.004 ( * LE32B7500 ) 1360 × 768 47.72 59.799 ( Only for LE48B7500/LE50B7500) 1440 × 900 * 55.469 59.901 ( Only for LE48B7500/LE50B7500) 1680 × 1050 * 65.29...
- Page 25 All manuals and user guides at all-guides.com Video Input Signal Reference Table Connect the component signal or HDMI port of video device to your TV set and set up the output signal of the video device in accordance with table below. If your computer display card supports signals of video format then you can set up following output signal.
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Page 26: Mechanical Instructions
All manuals and user guides at all-guides.com 4. Mechanical Instructions LE32B7500 Step1. Remove the BASE. Step2. Remove the REAR COVER. - Page 27 All manuals and user guides at all-guides.com Step3. Remove the MAIN BOARD、POWER BOARD、BKT IO、SPEAKER. Step4. Remove the BKT_STAND. Step5. Remove the DECO.
- Page 28 All manuals and user guides at all-guides.com Step6. PANEL.
- Page 29 All manuals and user guides at all-guides.com LE50B7500 Step1. Remove the BASE. Step2. Remove the REAR COVER.
- Page 30 All manuals and user guides at all-guides.com Step3. Remove the MAIN BOARD、POWER BOARD、BKT IO. Step4. Remove the BKT_STAND、SPEAKERS. Step5. Remove the DECO. Step6. PANEL.
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Page 31: Repair Flow Chart
All manuals and user guides at all-guides.com 5. Repair Flow Chart 1. No power No power (LED “Off”) Check the AC input and Power “On” the power is “ON”? Power board output=5V? Replace the power board Check the IR board and LED Replace the IR board Replace the main board... - Page 32 All manuals and user guides at all-guides.com 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 33 All manuals and user guides at all-guides.com 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 34 All manuals and user guides at all-guides.com 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...
- Page 35 All manuals and user guides at all-guides.com 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 36 All manuals and user guides at all-guides.com 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 37 All manuals and user guides at all-guides.com 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”...
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Page 38: Pcb Layout
All manuals and user guides at all-guides.com 6. PCB Layout 6.1 Main Board 715G6686M01001004K... - Page 39 All manuals and user guides at all-guides.com...
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Page 40: Power Board
All manuals and user guides at all-guides.com 6.2 Power Board 715G6143P01004002H (32”) - Page 41 All manuals and user guides at all-guides.com...
- Page 42 All manuals and user guides at all-guides.com...
- Page 43 All manuals and user guides at all-guides.com 715G6439P01002002M (50”)
- Page 44 All manuals and user guides at all-guides.com...
- Page 45 All manuals and user guides at all-guides.com...
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Page 46: Ir Board
All manuals and user guides at all-guides.com 6.3 IR Board 715G6721R02000004I 6.4 Key Board 715G6715K01002004I... -
Page 47: Adjustment
All manuals and user guides at all-guides.com 7. Adjustment 7.1 WB Adjustment 1. Enter factory model，step “Menu+8893”; 2. This TV adjust Ypbpr source，example Ypbpr source Normal temperature; 3. Choose “Current Source” to Ypbpr whit remote control， “Color temp” as NORMAL; 4. -
Page 48: Firmware And Ddc Instruction
All manuals and user guides at all-guides.com 7.2 Firmware and DDC Instruction 1. 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. -
Page 49: Block Diagram
All manuals and user guides at all-guides.com 8. Block Diagram IF+/- ATV&DTV HDMI1 HDMI2 LVDS Panel MST6931 YPbPr CVBS_OUT APA2614 SPEAKER Headphone APA2176... -
Page 50: Wiring Diagram
All manuals and user guides at all-guides.com 9. Wiring Diagram LE32B7500 Panel 6 Pin CN8101 CN8101 4 Pin CN601 30 Pin Power Board CN403 16 Pin CN9101 9 Pin CN9100 Main Board CN401 MST6931XP CN701 Key Board 4 Pin 5 Pin... - Page 51 All manuals and user guides at all-guides.com LE50B7500 Panel 12 Pin 16 Pin CN9100 CN8101 4 Pin CN601 30 Pin CN403 Power Board 9 Pin Main Board CN401 MST6931XP CN701 Key Board 4 Pin 5 Pin CN01 IR Board CN201 Speaker R Speaker L...
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Page 52: Schematic Diagram
All manuals and user guides at all-guides.com 10. Schematic Diagram 10.1 Main Board 715G6686M01001004K C704 +5V_Normal 22pF 50V R742 0R05 1/16W +5V_Standby Vout = 0.6x(1+100/13.3)=5.11V R702 R726 100K 1% R728 U706 R725 C726 BL_PWM BL_EN BL_EN 13.3K 1% +5V_Standby PS_ON R762 100OHM1/16W R763... - Page 53 All manuals and user guides at all-guides.com +5V_Standby H/W Reset R403 D401 1M 1/16W BAV99 HDMI_HP1 HOTPLUG1 HDMI1-SCL HDMI1_DDC_SCL HDMI1-SDA RXO0- HDMI1_DDC_SDA R404 RXO0- HDMI1-CLKP RXO0+ C402 HDMI1_CLK+ RXO0+ HDMI1-CLKN RXO1- HDMI1_CLK- RXO1- HDMI1-RX0P 2.2UF 16V RXO1+ HDMI1_D0+ RXO1+ HDMI1-RX0N RXO2- Q402 HDMI1_D0-...
- Page 54 All manuals and user guides at all-guides.com RXO0- RXO0- RXO0+ R437 0oHM RXO0+ RXO1- P12V RXO1- RXO1+ Panel Power RXO1+ R438 RXO2- RXO2- RXO2+ +5V_Standby RXO2+ RXOC- RXOC- RXOC+ NC/0oHM PANEL_VCC RXOC+ RXO3- RXO3- Q401 C401 RXO3+ RXO3+ AO3407A R439 100K 1/16W 220N 25V R473...
- Page 55 All manuals and user guides at all-guides.com YPBPR Video/AV2 IN AV1 IN Close IC side R102 CN102 R148 C102 C147 AV1-CVBS0P AV1-CVBS0P 33 OHM 1/16W 47nF 16V 33 OHM 1/16W 47nF 16V R104 C105 ZD102 33 OHM 1/16W 47nF 16V R141 AGND ZD103...
- Page 56 All manuals and user guides at all-guides.com From Main Chip CN501 CN502 HDMI0-RX2P HDMI0_D2+ HDMI0-RX2N SHLD0 SHLD0 HDMI0_D2- HDMI0_D2+ HDMI1_D2+ HDMI0-RX1P R515 4.99ohm 1/16W +/-1% R523 4.99ohm 1/16W +/-1% TMDSD2+ TMDSD2+ HDMI0_D1+ HDMI0-RX1N DGND DSHLD0 SHLD2 DSHLD0 SHLD2 HDMI0_D1- HDMI0_D2- R516 4.99ohm 1/16W +/-1% HDMI1_D2-...
- Page 57 All manuals and user guides at all-guides.com Silicon Tuner 300mA Tuner Power 1K_100MHz/400_400MHz AGND DGND 3.3V_TUNER +5V_Normal 3.3V_TUNER U101 FB101 Main Chip <--> TU101 ST33WS-2-E VOUT 300mA 1000OHM TUN_IF+ C129 C130 VIFP C127 TUN_IF- VIFM 2.2UF 16V Tuner3.3V 3.3V_TUNER 10uF 10V C128 100UF 16V C101...
- Page 58 All manuals and user guides at all-guides.com AV_L_OUT# 1.2A Max AMP_AUOUTL0 U601 AV_R_OUT# +5V_Normal AMP_AUOUTR0 Thermal Pad R611 +3.3V_Standby PVDD 10K 1/16W 5% PGND AMP_STB R612 PVCCL R630 Q601 4K7 1/16W 5% AMP_MUTE MMBT3904 C613 100N 50V NC/100UF 35V NC/100UF 35V C614 C615 100N 50V...
- Page 59 All manuals and user guides at all-guides.com From Main Chip KEY 0-SAR0 KEY 0-SAR0 KEY 1-SAR1 KEY 1-SAR1 IRIN IRIN +3.3V_Standby +3.3V_Standby +3.3V_Standby LEDG LEDG FB409 LEDR LEDR +3.3V_Standby CN401 R456 R457 4K7 1/16W 1% 4K7 1/16W 1% R444 120R/6000mA LED-R NC/10K DGND...
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Page 60: Power Board
All manuals and user guides at all-guides.com 10.2 Power Board 715G6143P01004002H (32”) FB9902 FB9901 HOT COLD 127R JUMP WIRE - - +12V1 BD901 R9115 R9119 GBL08-07 BD902 C9104 390K +-5% 1/4W 390K +-5% 1/4W +12V GBL08-07 C9101 C9102 2.2NF Q9181 L9101 56uF 500V 56uF 500V... - Page 61 All manuals and user guides at all-guides.com L8102 33uH C8115 +12V1 FB9905 BEAD VLED+ D8101 L8101 SR506 C8116 C8112 C8113 R8111 R8112 C8101 220uF 50V 220uF 50V C8121 10K 1/4W 10K 1/4W 470UF 25V Q8104 AOD2916 R8116 VCC1 51K 1% 1/8W VLED+ R8147 VCC1...
- Page 62 All manuals and user guides at all-guides.com 715G6439P01002002M (50”) HS9901 heat sink CN9903 NC/CONN FB9901 C9910 NR9901 BEAD SG9901 F9901 NR9902 220PF 250V 2.5R 5A 250V 2.5R NC/DSPL-501N-A21F T5.0AL/250V R9902 C9903 R9901 510K 1/4W 47pF 250V 510K 1/4W BD9901 470NF 275V TS10K80-02 C9905 C9901...
- Page 63 All manuals and user guides at all-guides.com L9801 240UH C9817 D9801 FB9803 NC/47PF KBP206G FB9805 Vsin D9802 BEAD 127R FMNS-1106S Q9801 C9805 C9801 STF24NM60N NC/1UF 450V R9802 D9803 1UF 450V 10R 1/8W 5% RB160M C9814 C9815 C9818 47PF 56uF 500V 56uF 500V R9808 0.07R...
- Page 64 All manuals and user guides at all-guides.com COLD 12VS L9100 C9109 470UF 25V +12V C9130 new part R9151 Q9105 VCC1 T9101 100N 50V SY NC NC/100KOHM +-5% 1/8W R9124 R9125 NC/P1604ED IC9104 22K 1% 4R7 1/4W 5% C9104 470UF 25V Timing SYNC Pred...
- Page 65 All manuals and user guides at all-guides.com R8101 HS8102 HEAT SINK D8102 VBoot 0.1R NC/FMX-23S R8102 C8100 HS8103 D8103 HEAT SINK R8104 Q8101 New Parts 10 OHM AOTF8N50 UF4007 R8105 R8103 D8101 10 OHM D8104 1.5M 1% 1/4W 1.5M 1% 1/4W SS1060FL T8101 R8107...
- Page 66 All manuals and user guides at all-guides.com J901 J902 J903 J904 J907 J909 J912 JUMPER JUMPER JUMPER JUMPER JUMPER JUMPER JUMPER J913 J914 J915 J916 J919 J920 J921 JUMPER JUMPER JUMPER JUMPER JUMPER JUMPER JUMPER J920 J922 J923 J924 J925 J926 J927 JUMPER...
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Page 67: Ir Board
All manuals and user guides at all-guides.com 10.3 IR Board 715G6721R02000004I LED201 LED_R CN201 U201 Vout R201 15K 1/16W 5% TSOP75438TR CONN C201 2.2uF 10V T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL Size TPV MODEL 絬... -
Page 68: Key Board
All manuals and user guides at all-guides.com 10.4 Key Board 715G6715K01002004I SW01 MENU 2.411V 27K 1/10W 1% TACT SW FWRD H1.5MM SW02 INPUT 1.985V 15K 1/10W 1% TACT SW FWRD H1.5MM SW03 VOL+ 1.497V 8K2 1/10W 1% TACT SW FWRD H1.5MM SW04 VOL- 1.070V...