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SERVICE MANUAL

LED TV

Chassis

MSD318

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.

Haier Group

©2009 Qingdao Haier Electronics Co., Ltd.
All rights reserved. Unauthorized copying and distribution is a violation of law.

WARNING

Model No. LE26B13200b

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Содержание LE26B13200b

Страница 1: ...ngers 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 Haier Group 2009 Qingdao Haier Electronics Co Ltd All rights reserved Unauthorized copying and distr...

Страница 2: ...ve the Pedestal 7 8 8 8 8 11 12 14 14 4 2 Remove the Back Cover 14 4 3 Remove the Terminal Bracket 15 4 4 Remove the Power Module 15 4 5 Remove the Main Board 15 4 6 Remove the Speaker 16 4 7 Remove the Remote Control Board 16 5 Installation Instructions 16 5 1 External Equipment Connections 16 5 2 HDMI Connections 20 6 Operation Instructions 23 6 1 Front Panel Controls 6 2 Back Panel Controls 6 3...

Страница 3: ... 02 9 Trouble shooting 43 9 1 Simple Check 43 9 2 Main Board Failure Check 9 3 Panel Failure 44 53 ...

Страница 4: ...maintenance instructions in the literture accompanying the appliance 1 3 2 Be careful to the electrical shock 7R SUHYHQW GDPDJH ZKLFK PLJKW UHVXOW LQ HOHFWULF VKRFN RU UH GR QRW H SRVH WKLV 79 VHW to rain or excessive moisture This TV must not be exposed to dripping or splashing water DQG REMHFWV OOHG ZLWK OLTXLG VXFK DV YDVHV PXVW QRW EH SODFHG RQ WRS RI RU DERYH WKH 79 1 3 3 Electro static disch...

Страница 5: ...O WKH WHVW WXUHV VSHFL HG LQ WKLV VHUYLFH PDQXDO CAUTION R QRW FRQQHFW WKH WHVW WXUH JURXQG VWUDS WR DQ KHDW VLQN LQ WKLV UHFeiver 3 Do not spray chemicals on or near this receiver or any of its assemblies 4 Unless specified otherwise in this service manual clean electrical contacts only by applying the following mixture to the contacts with a pipe cleaner cotton tipped stick or comparable non abr...

Страница 6: ...ctricity Such components commonly are called Electrostatically Sensitive ES Devices Examples of typical ES devices are integrated circuits and some field effect transistors and semiconductor chip components The following techniques should be used to help reduce the ncidence of component damage caused by static by static electricity 4 Use only an anti static type solder removal device Some solder r...

Страница 7: ...table below Note A note provides information that is not indispensable but may nevertheless be valuable to the reader such as tips and tricks 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 Ref...

Страница 8: ...ilt in W 5W 2 Audio Output Power outer W No Total Power Input W 55 W Net Weight KG Net Dimension MM Packaged Dimension MM Screen Size Model LE26B13200 26 inch Aspect Ratio 16 9 Resolution 768 1366 Color Display 16 7M OSD Language English Color System NTSC PAL SECAM Audio System M Voltage Range V Power Frequency Hz 50 60Hz Gross Weight KG 6 7 3 647 180 461 730x130x520 AC 120V 240V ...

Страница 9: ... 08 3 Location of Controls and Components 3 1 Board Location 3 2 Main Board No Description A Board Main Board B Board Power Board A Board B Board LE26B13200 TB300711701M 514C2632M04 ...

Страница 10: ...D 12 12V 13 12V Notes J16 Pin 2 Backlight on off The system can turn on or turn off the backlight of TFT LCD Panel through the power supply unit path System board will use this pin to control system power J16 Pin 3 Control the luminance of backlight The system can generate the PWM signal to control the strength of TFT LCD Panel s backlight through this connector 2 1 GND Pin number Signal name BL A...

Страница 11: ... J12 Speaker connector J11 Pin number Signal nameD escription K P S R K P S R 1 K P S R K P S R 2 K P S L K P S L 3 K P S L K P S L 4 3LQ QXPEHU 6LJQDO QDPH HVFULSWLRQ B5 03 5 B 03 5 1 5 5 027 21752 1 1 9 32 5 25 5 027 1 9 1 STANDBY ...

Страница 12: ...r for Main board Panel RQQHFWRUGH QLWLRQ 11 CN1 Pin number Signal name GND GND GND GND POWER ON OFF 5VSTB 5V 5V CN4 Pin number Signal name GND 12V 12V 3 3 Power Board GND GND 5 6 ON BK ADJ 13 12V 12 12V 11 GND 10 GND 9 GND 5V ON BK ADJ GND ...

Страница 13: ...3 4 LCD Panel 12 MTC260LED C02H CMO V260B2 P03 ...

Страница 14: ...ive transmission data of pixel 2 13 GND Ground 14 RXCLK Negative of clock 15 RXCLK Positive of clock 16 GND Ground 17 RX3 Negative transmission data of pixel 3 18 RX3 Positive transmission data of pixel 3 19 GND Ground 20 NC No connection 2 21 SELLVDS Select LVDS data format 3 22 NC No connection 2 23 GND Ground 24 GND Ground 25 GND Ground 26 VCC Power supply 12V 27 VCC Power supply 12V 28 VCC Pow...

Страница 15: ...XQLW VR WKDW UHDU FRYHU faces upward 5HPRYH WKH IRXU VFUHZ IURP WKH UHDU FRYHU LQGLFDWHG ZLWK ż 7KHQ UHPRYH WKH SHGHVWDO 4 2Remove the Back Cover 5HPRYH WKH WKHVH VFUHZ LQGLFDWHG RQ JXUH DERYH E ż 7KHQ UHPRYH WKH EDFN FRYHU IURP WKH unit 14 4 1 Remove the Pedestal 4 3 Remove the adhesive tape ...

Страница 16: ... 4 Remove the power module 7KHQ UHPRYH WKH SRZHU PRGXOH 4 5 Remove the Main board 5HPRYH WKH WZR VFUHZ LQGLFDWHG RQ WKH JXUH DERYH E ż J16 J12 J9 J15 J11 5HPRYH WKH 0DLQ ERDUG 15 Disconnected the coupler ...

Страница 17: ...ol board 16 5 Installation Instructions 5 1 External Equipment Connections Accessories Remote Control User GUIDE Battery 1 ENTER RETURN DISPLAY 2 3 4 5 6 7 8 9 0 CH _ _ VOL SUBTITLE AUDIO SLEEP V CHIP CC AUTO S M EXIT P M TV DISPLAY SOURCE MENU MTS SAP MUTE POWER ASPECT DVD USB RECALL GOTO MENU SETUP ...

Страница 18: ... 17 ...

Страница 19: ...6p 720p 1080i You can use the input terminals on TV set rear as follows HDMI HDMI1 HDMI1 HDMI2 USB USB VGA HEADPHONE RF PC AUDIO COAXIAL Yellow video White audio L Red audio R or Pr Y W R W R G B R Blue Pb Green Y B G VIDEO EQUIPMENT with YPbPr W R G B R W R W R TO AUDIO OUTPUTS VIDEO EQUIPMENT TO VIDEO OUTPUTS Y Pb Pr VIDEO AC INPUT 100 240V 50 60Hz L R COMPOSITE COMPONENT ...

Страница 20: ...4 Power on the PC This sequence is very important PRESET MODE 1 2 3 4 5 6 7 8 9 10 720 400 640 480 640 480 800 600 800 600 1024 768 1024 768 1024 768 1280 1024 1280 1024 70 60 75 60 75 60 70 75 60 75 31 47 31 47 37 50 37 88 46 88 48 36 56 48 60 02 63 98 80 00 RESOLUTION V Freq Hz H Freq KHz HDMI1 HDMI1 HDMI2 HDMI2 USB USB VGA HEADPHONE RF PC AUDIO COAXIAL ...

Страница 21: ... Main source menu When the source device supports DVI How To Connect 1 Connect the source device to HDMI port of this TV with a HDMI to DVI cable not supplied with this product 2 A separated audio connection is necessary 3 If the source device has an analog audio output connector connect the source device audio output to DVI Audio In port located on the PC port How To Use If the source device supp...

Страница 22: ...VI Cable not supplied with the product Analog Audio Cable Stereo to RCA type not supplied with the product Connecting Headphones You can connect a set of headphones to your set if you wish to watch a TV programmer without disturbing the other people in the room 21 ...

Страница 23: ...ROWDJH Use the attached power cord only Ŷ I WKH SRODUL HG FRUG GRHV QRW W LQWR D QRQ SRODUL HG RXWOHW GR QRW DWWHPSW WR OH RU FXW WKH EODGH W LV WKH XVHUCV UHVSRQVLELOLW WR KDYH DQ electrician replace the obsolete outlet Ŷ I RX FDXVH D VWDWLF GLVFKDUJH ZKHQ WRXFKLQJ WKH XQLW DQG WKH XQLW IDLOV WR IXQFWLRQ simply unplug the unit from the AC outlet and plug it back in The unit should return to norma...

Страница 24: ... from STANDBY mode Press it again to turn the set back to STANDBY SOURCE MENU CH CH VOL VOL STANDBY 1 2 3 4 5 REAR Connections All the terminals are from left to right POWER SOCKET VIDEO AUDIO INPUT YPbPr INPUT Note AV and YPbPr share one audio channel SIDE Connections All the terminals are from left to right HDMI1 HDMI2 USB VGA HEADPHONE PC AUDIO COAXIAL RF Note 1 When HDMI1 port get DVI signal t...

Страница 25: ...the next orprevious Program 15 ASPECT To changepicture aspect 16 CH LIST Used to displaythe channel list 17 EPG Display all theinformation of DTVprograms 18 FAV Used to access your favourite channels in digital TV mode 19 HDMI Hot key directly go to HDMI source 20 AV Hot key directly go toAVsource 21 DTV STRENGTH Used to display the DTVsignal strength menu 22 TV Hot key directly go to TVsource 23 ...

Страница 26: ...7 Electrical parts 7 1 Block diagram 25 AMP Headphone Coaxial 1 2 MSD318QT Main IC ...

Страница 27: ...C504 0 1uF R123 75R R123 75R R126 12K R126 12K R125 75R R125 75R R902 100R R902 100R C48 560pF C48 560pF R918 100R R918 100R R905 100R R905 100R R115 22K R115 22K R98 33R R98 33R R167 1K R167 1K R114 22K R114 22K R163 1K R163 1K R919 10K R919 10K C31 47nF C31 47nF Q9 3904 Q9 3904 1 2 3 C32 47nF C32 47nF C503 0 1uF C503 0 1uF C66 560pF C66 560pF U25 NC CP_2 0B U25 NC CP_2 0B NC1 1 MODE1 2 NC2 3 NRE...

Страница 28: ...1 220nH LS16 220nH LS16 220nH C71 NC 10uF C71 NC 10uF RS25 0R RS25 0R B1 GND B0 A S VCC U29 FSA3157P6X B1 GND B0 A S VCC U29 FSA3157P6X 1 2 3 4 5 6 R438 10K R438 10K RS3 10K RS3 10K CS20 2 2uF CS20 2 2uF ADJ OUT IN US2 AMS1117 ADJ ADJ OUT IN US2 AMS1117 ADJ 3 2 1 4 R153 150R R153 150R CS28 100uF 16V CS28 100uF 16V LS10 120ohm_FB LS10 120ohm_FB CS31 39pF CS31 39pF CS8 4700pF CS8 4700pF R216 100R R2...

Страница 29: ...10K C124 470pF C124 470pF R366 0R R366 0R Q35 3904 Q35 3904 1 2 3 EC12 100uF 25V EC12 100uF 25V 1 2 C706 NC 1nF C706 NC 1nF R299 0R R299 0R R239 4 7K R239 4 7K R242 10K R242 10K R236 10K R236 10K R249 0R R249 0R EC11 470uF 16V EC11 470uF 16V 1 2 FB703 NC FB 1206 FB703 NC FB 1206 C705 NC 1uF C705 NC 1uF C730 NC 220nF C730 NC 220nF C743 NC 1uF C743 NC 1uF Q22 3904 Q22 3904 R233 100R R233 100R R300 4...

Страница 30: ...156 NC 10nF C156 NC 10nF R204 NC R204 NC R318 100K R318 100K R321 4 7K R321 4 7K E80 V800AA E80 V800AA R205 NC R205 NC J17 CON4 J17 CON4 1 2 3 4 C118 100uF 16V C118 100uF 16V R323 NC R323 NC Q34 3904 Q34 3904 1 2 3 R200 NC R200 NC R326 10K R326 10K R194 NC 51K R194 NC 51K E81 V800AA E81 V800AA R195 NC 100K R195 NC 100K R158 5 1R R158 5 1R R201 NC R201 NC EC99 NC 220uF 16 EC99 NC 220uF 16 1 2 U8 AP...

Страница 31: ...DEL MSAV3207 K3 TITLE DDR2_16 CHECKED Date Feb 3 2010 APPRD SHEET 5 OF 9 VER 1 0 Vpp 200mv C433 1UF C433 1UF 7 5 3 1 8 6 4 2 RP18 75RX4 7 5 3 1 8 6 4 2 RP18 75RX4 R13 75R R13 75R 7 5 3 1 8 6 4 2 RP2 22RX4 7 5 3 1 8 6 4 2 RP2 22RX4 C430 0 1uF C430 0 1uF C446 10nF C446 10nF R83 100R R83 100R C431 0 1uF C431 0 1uF U9 DDRII512M P3R12E4JFF G8E U9 DDRII512M P3R12E4JFF G8E A0 M8 A1 M3 A2 M7 A3 N2 A4 N8 A...

Страница 32: ...21 PAD_IO 37 A CKE D19 PAD_IO 40 A BA2 E19 PAD_IO 39 A BA0 D20 PAD_IO 42 A AD10 F19 PAD_IO 41 A AD1 E20 PAD_IO 44 A AD3 F21 PAD_IO 46 A AD9 G19 PAD_IO 43 A AD5 F20 PAD_IO 35 A AD12 G20 PAD_IO 45 A AD7 G21 PAD_IO 24 A LDQSM A16 R129 100R R129 100R C140 10nF C140 10nF R180 2K R180 2K R164 4 7K R164 4 7K L49 FB 60R 0 3A LC0603 L49 FB 60R 0 3A LC0603 R304 4 7K R304 4 7K R72 10K R72 10K R56 10K R56 10K...

Страница 33: ...35 22K R335 22K E65 NC E65 NC E53 NC E53 NC Q301 NC 2N7002 Q301 NC 2N7002 3 1 2 E39 NC E39 NC R351 10K R351 10K CN3 HDMI CN3 HDMI DATA2 1 DATA2 SHIELD 2 DATA2 3 DATA1 4 DATA1 SHIELD 5 DAT1A 6 DATA0 7 8 DATA0 SHIELD DATA0 9 CLK 10 CLK SHIELD 11 CLK 12 CEC 13 NC 14 SCL 15 SDA 16 DDC CEC GND 17 5V POWER 18 HOT PLUG 19 20 GND1 21 GND2 22 GND3 23 GND4 E62 NC E62 NC R310 100R R310 100R CN1 DIP 20 2 10 C...

Страница 34: ...7 47nF E3 NC E3 NC R58 100R R58 100R R147 100R R147 100R E10 NC E10 NC E14 NC E14 NC R29 220R R29 220R E16 NC E16 NC C492 1nF C492 1nF R88 75R R88 75R R31 1K R31 1K C35 47nF C35 47nF R136 12K R136 12K R346 NC R346 NC C485 47nF C485 47nF J37 Single RCA J37 Single RCA G 1 S 2 S 3 E2 NC E2 NC R27 150R R27 150R R544 33R R544 33R R551 68R R551 68R R213 12K R213 12K R143 75R R143 75R CN11 CN11 1 2 3 4 5...

Страница 35: ...58 100R R147 100R R147 100R E10 NC E10 NC E16 NC E16 NC C492 1nF C492 1nF R88 75R R88 75R C35 47nF C35 47nF R136 12K R136 12K R346 NC R346 NC C485 47nF C485 47nF E2 NC E2 NC R544 33R R544 33R R551 68R R551 68R R213 12K R213 12K R143 75R R143 75R CN11 CN11 1 2 3 4 5 6 7 8 CN513 NC Side_AV CN513 NC Side_AV 1 1 2 2 3 3 4 4 C491 47nF C491 47nF C496 47nF C496 47nF R347 NC R347 NC C70 560pF C70 560pF R9...

Страница 36: ... 35 7 3 Wiring Connection Diagram 1 2 4 3 NO N ame 1 2 3 4 Connection Wire For Speaker LVDS Wire Connection Wire Power For Mainboard Connection Wire For Keyboard and Remote ...

Страница 37: ...8 TV OPERATION 36 ...

Страница 38: ... 37 ...

Страница 39: ... 38 Press ENTER Key To Select ...

Страница 40: ... 39 Press ENTER Key To Select ...

Страница 41: ... 40 ...

Страница 42: ... the key exit to shut the factory setting Content 1 ADC setting set ADC value of YUV VGA It can also be auto set Adopt 100 color bar to yuv and Checkerboard signal to vga 2 Color Temp 3 Video Quality 4 Sound Quality 5 Curve Setting 6 Aging Mode 7 Other Setting 8 SW Upgrade 9 Shipment 7KH UVW OLQH LV 6 9HU 1R ...

Страница 43: ...o update You should remove the USB memory and reset TV after update Note When Upgrade on the process please don t Power Off Haier MSD318QT F W upgrade with USB SOP Step 1 Ready for F W Upgrade 1 1 Prepare a USB memory RS WKH VRIWZDUH OH PHUJH IURP RXU FRPSXWHU WR WKH 86 PHPRU DQG UHPRYH LW from computer s USB port Step 2 F W Upgrade 2 1 AC ON 8 2 How to update software ...

Страница 44: ... 43 9 Trouble shooting 9 1 Simple check ...

Страница 45: ...44 9 2 Main board failure check Service guide 1 Black creen 2 White screen 6 J15 J15 2 11 2 on VCC pins of J9 Check if Q31 is working Check if J9 is Signal on J9 Check Q2 Q3 and the 5 Is power LCD normal ...

Страница 46: ... 45 3 Panel display abnormally connector J9 is at normal level ...

Страница 47: ...the speakers Y N Check if there is output at J 11 Check if there is 12V input at PIN18 of U19 Check if the power supply system is damaged short circuit or mis connected N Y Check if PIN7 of U19 is low voltage Check the volume control circuit from U19 Y N Check if there is signal input at PIN1 PIN12 of U19 Check the volume input circuit from to U19 N Y Replace U19 ...

Страница 48: ... U24 N Y Y Y N Check the power supply circuit to this PIN Check if there is intermediate frequency signal output at PIN12 of U24 Check if there is I2C signal at PIN6 PIN7 of TUNER1 Check the I2C circuit between U11 and U24 Check the tuner Check the signal circuit between U11 and U24 Fix the RF set N ...

Страница 49: ...6 HDMI no picture or picture abnormal If CN10 is Q11 Q12 48 2 R301 R310 R319 R317 R351 R338 R343 Q305 ...

Страница 50: ... 49 7 PC no picture or picture abnormal ...

Страница 51: ... 50 8 YPBPR AV no picture or picture abnormal Check Y ...

Страница 52: ...be caused by surge current and EDS Black Screen B L normal only Black screen display FIIcker Crosstalk LCD Vcom imbalance Abnormal Color Only color abormal Capacitance improper bring crosstalk inside LCD pannel Abnormal Color Only color abnormal 1 Chip lose action 2 I C s h o r t o r jointion bad 3 Pannel and vsc connect bad ...

Страница 53: ... Bladder in Polarizer Bladder between Polarizer and top glass Polarizer Scratch Polarizer Scratch Tine or rigidity arose F M i n s i d e Polarizer Eyewinker inside Polarizer Eyewinker inside Polarizer Circuit Abnormal Display Abnormal Display 1 Chip lose action 2 IC ahort or jointiog bad 3 Pannel and vsc connect bad Flashing B r i g h t a n d d a r k display alternately ...

Страница 54: ... Dim or L D TCP Sunken TCP lead cracking ACF bonding short Awful environment and something electric enter into LCD Mis align between TCP and Panel Panel failure TCP failure V Dim Vertal gray line V L D Vertical color line light or dark forever H B D Horizontal bar H Dim Horizontal gary line H L D H o r i z o n t a l line light or dark forever ...

Страница 55: ...n Connect badness between wire and electrode B L dark B L brightness darker than normal Connect badnessShort between wire and electrode B L wire damaged B L wire damaged Operation abnormal or systemic noise B L wire open Without backlight Operation abnormal or systemic noise B L shut down B L shutdown in sometime Short bitween lamp housing and wire Because consume power too much F M F M inB L whit...

Страница 56: ...omena Failure cause Mechanlcal or B L Light leakage Brightness at bottom of LCM brighter than normal B L unit badness Uniformity B L brightness asymmetric Sheet in B L unit is uneven Mount hole Lack screw or screw damage Lack screw Screw damage ...

Страница 57: ...Sincere Forever Haier Group Haier Industrial Park No 1 Haier Road 266101 Qingdao China http www haier com Printed in China ...

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