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SERVICE MANUAL

LCD TV

Model No. L39B2180a

Chassis

MST318

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

©2011 Qingdao Haier Electronics Co., Ltd.
All rights reserved. Unauthorized copying and distribution is a violation of law.

WARNING

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Содержание L39B2180a

Страница 1: ...uals 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 2011 Qingdao Haier Electronics Co Ltd All rights reserved Unauthoriz...

Страница 2: ... Board 3 3 Power Board 3 4 LCD Panel 4 Disassemble and Assemble 7 8 8 8 8 11 12 15 20 5 Installation Instructions 21 1 2 s n o i t c e n n o C t n e m p i u q E l a n r e t x E 1 5 4 2 s n o i t c e n n o C I M D H 2 5 6 Operation Instructions 27 6 1 Front Panel Controls 6 2 Back Panel Controls 6 3 Universal Remote Control 27 27 28 7 Electrical Parts 29 7 1 Block Diagram 7 2 Circuit Diagram 29 30 ...

Страница 3: ...Service Manual Model No 02 9 Trouble shooting 51 1 5 k c e h C e l p m i S 1 9 9 2 Main Board Failure Check 9 3 Panel Failure 52 55 ...

Страница 4: ...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 discharge ESD Som...

Страница 5: ... UHFHLYHU RQO 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 compar...

Страница 6: ... static electricity 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 So...

Страница 7: ...ibed in the 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 persona...

Страница 8: ...16777216 No of Preset Channels 200 OSD Language Eng Fra Span Color System PAL Audio System BG DK I Audio Output Power Built in W 10W 2 Audio Output Power outer W No Total Power Input W 150W Voltage Range V AC100V 240V Power Frequency Hz 50 60Hz Net Weight KG 12 4 Gross Weight KG 15 6 Net Dimension MM Packaged Dimension MM 1045 210 735 L39B2180 941 250 655 ...

Страница 9: ...art Number Description A Board B Board 3 2 Main Board Main board Power board TB300713400M 0113050462 B J8 IR KEY J5 POWER IN J6 LVDS J4 PANEL POWER J7 USB J1 HDCP J2 INVERTER J3 AMP _POWER J12 DVD CONTROL POWER J16 HDMI J15 DVD SIGNAL IN J14 SVIDEO IN J9 AUDIO IN J17 PANEL GPIO J13 SPEAKER ...

Страница 10: ...nectors J2 J5 Notes J2 Pin 4 Backlight on off The system can turn on or turn off the backlight of TFT LED Panel through the power supply unit path J5 Pin 9 System power on standby System board will use this pin to control system power J2 Pin 3 Control the luminance of backlight The system can generate the PWN signal to control the strength of TFT LED Panel s backlight through this connector J2 J5 ...

Страница 11: ... J8 Pin number 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Signal name GND K7 K6 K5 K4 K3 K2 K1 K0 GND IR LED_G LED_R 5V Description Ground Power key NC CH key CH key Vol key Vol key Meny key TV AV key Ground IR Receive Green Indicator Red Indicator 5V DC Power Supply ...

Страница 12: ...Connector type PH 5A 5P 2 0mm or equivalent Pin assignments Table 2 0mm 4pin Pin No Symbol Description 1 ADJ Brightness 2 SW Inverter On off Control 3 GND Ground 4 GND Ground Location CON3 Connector type XH 4A 4P 2 5mm or equivalent Pin CON3 Connection And Function TYPE 2 54MM 4PIN NO Pin Connection Function 1 24V 24V OUTPUT 2 24V 24V OUTPUT 3 GND Ground 4 GND Ground Location CON2 Connector type J...

Страница 13: ...4 LED Panel 12 Service Manual Model No OPEN CELL LABEL The barcode nameplate is pasted on each open cell as illustration for CMI internal control V390HJ1 P01 XXXXXXXXXXXXXX V390HJ1 P01 Rev XXXXXXXXXXXXXX ...

Страница 14: ...t pixel Odd LVDS Signal First pixel Odd LVDS Signal Ground First pixel Odd LVDS Signal First pixel Odd LVDS Signal First pixel Odd LVDS Signal First pixel Odd LVDS Signal Ground NC NC Second pixel Odd LVDS Signal Second pixel Odd LVDS Signal CH2 0 CH2 0 CH2 1 CH2 1 CH2 2 CH2 2 GND CH2CLK CH2CLK CH2 3 CH2 3 GND CH2 4 CH2 4 Ground Ground Second pixel Odd LVDS Signal Second pixel Odd LVDS Signal Seco...

Страница 15: ...4 Disassemble and assemble Service Manual Model No 15 Front Back 4 1 Remove the6 screws as below picture ...

Страница 16: ...Service Manual Model No 16 4 2 Remove the 5 screws on the back cabinet 4 3 Remove the 2 screws on the back cabinet 4 4 Remove the 14 screws as below picture ...

Страница 17: ...Service Manual Model No 17 4 5 Remove the 11 screws on the fixing board 4 6 Remove the 4 screws of the speakers 4 7 Remove the 2 screws as below picture 4 8 Remove the 4 screws as below picture ...

Страница 18: ...Service Manual Model No 18 9 Remove the 2 screws as below picture 4 10 Remove the 4 screws as below picture ...

Страница 19: ...Service Manual Model No 19 4 10 Remove the 6 screws fixing the side iron stick 4 9 Remove the 1 screws as below picture ...

Страница 20: ...Service Manual Model No 20 4 11 ...

Страница 21: ...the other end of the cable into the antenna or cable TV wall outlet To improve picture quality from an antenna in a poor signal area install a signal If you need to split the antenna signal to connect two TVs install a two way splitter Service Manual Model No 21 1 2 3 4 5 6 7 8 9 0 ENTER PREV DISPLAY FAVORITE CH LIST NEXT VOL CH VOL CH PICTURE AUDIO ARC CCD MTS SAP SLEEP INPUT MENU MUTE EXIT RECAL...

Страница 22: ...or VCR to the AV IN jacks on the TV set with a RCA cable Match the jacks colors Video yellow Audio left White Audio right red Turn on the DVD VCR and select AV in the input source menu RCA Video Cable RCA Audio Cable Audio Cable DVD or VCR YPbPr Connection Note All cables shown are not included with the TV Connect the YPbPr output jacks on the DVD or VCR to the YPbPr input jacks on the TV set with...

Страница 23: ...the TV Connect the RGB jack on the PC to the VGA jack on the TV set with a VGA cable Connect the audio output jack on the PC to the PC IN jack on the TV set with a stereo audio cable Turn on the PC and select VGA in the input source menu If using a sound card adjust the PC sound as required Set the video resolution of your PC to 1024x768 60Hz on its original monitor Make the connections between th...

Страница 24: ... menu When the source device DVD player or Set Top Box 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 sour...

Страница 25: ...Cable sample HDMI Cable not supplied with the product HDMI to DVI Cable not supplied with the product Analog Audio Cable Stereo to RCA type not supplied with the product Service Manual Model No 25 ...

Страница 26: ...eration on AC Insert the AC cord plug into a standard polarized AC outlet NOTES Use the attached power cord only electrician replace the obsolete outlet simply unplug the unit from the AC outlet and plug it back in The unit should return to normal operation Service Manual Model No 26 ...

Страница 27: ...A For PC display Connect it to the D Sub 15 pins analog output connector of the PC PC audio Connect it to the audio output terminal of PC Component AV IN Coax Digital audio output Headphone Connect it to your headphone or other audio equipments YPbPr Connect them to the YPbPr video output terminal of the external devices VIDEO Connect it to video output terminal of the external devices RF Connect ...

Страница 28: ...16 17 8 1 POWER 2 PICTURE ress repeatedly to cycle through the available 3 CCD Press to display the closed caption 6 INPUT Press to display the input source menu 4 ARC Adjust picture size TO set the TV to standby or power on 5 NUMBER KEY For direct access to channels 7 MENU To display the menu 8 VOL To adjust the sound level 9 EXIT Exit from the current menu 10 USB Switch to the USB source directl...

Страница 29: ...3 3 2 2 1 1 D D C C B B A A Schematics BlockDiagram MODEL MST318 PART NO TITLE Cover page DWG NO VER SHEET 0 pages 8 Design Checked Apprd MST318 flash 4M LED PANNEL Antenna in POWER TPA3124 HDMI VGA YPbPr AV SCART USB lvds DDR2 512M TDA18273 BACKLIGHT SPEAKER COAX Earphone ...

Страница 30: ...470uF 16V 1 2 C24 100n C24 100n 1 2 R46 4 7k R46 4 7k 1 2 D4 NC SS14 D4 NC SS14 2 1 C28 100n C28 100n C38 1u C38 1u 1 2 R77 NC 10k R77 NC 10k 1 2 C44 100n C44 100n R20 NC 100R R20 NC 100R 1 2 TP1 1 32V_DC TP1 1 32V_DC 1 Q13 NC 3904 Q13 NC 3904 1 2 3 TP5 1 8VA TP5 1 8VA 1 C42 10u C42 10u 1 2 C139 100uF 16V C139 100uF 16V 1 2 R42 NC 0R R42 NC 0R 1 2 C36 100uF 16V C36 100uF 16V 1 2 R41 NC 47k R41 NC ...

Страница 31: ...INE_IN_2L AA2 LINE_IN_2R W3 LINE_IN_3L Y2 LINE_IN_3R Y1 LINE_IN_4L V4 LINE_IN_4R W4 LINE_OUT_0L V5 LINE_OUT_0R W5 EARPHONE_OUTL U6 EARPHONE_OUTR T6 LINE_OUT_1L U5 LINE_OUT_1R V6 VRP T7 VAG U7 VRM U8 IP W7 IM Y8 VIFP W8 VIFM Y9 SSIF SIFP AA9 SSIF SIFM W9 IFAGC AA6 RF_TAGC Y6 TGPIO0 UPGAIN Y7 TGPIO1 DNGAIN V7 TGPIO2 I2C_CLK AA7 TGPIO3 I2C_SDA W6 I2S_IN_BCK P4 I2S_IN_SD P5 I2S_IN_WS L4 I2S_OUT_BCK F5...

Страница 32: ... c o D e z i S t e e h S e t a D of 04 MEMORY 20 CV318H A 20 Custom 4 10 Wednesday April 20 2011 7 5 3 1 8 6 4 2 RP15 22RX4 7 5 3 1 8 6 4 2 RP15 22RX4 7 8 5 6 3 4 1 2 C105 100n C105 100n 7 5 3 1 8 6 4 2 RP12 22RX4 7 5 3 1 8 6 4 2 RP12 22RX4 7 8 5 6 3 4 1 2 7 5 3 1 8 6 4 2 RP18 75RX4 7 5 3 1 8 6 4 2 RP18 75RX4 7 8 5 6 3 4 1 2 7 5 3 1 8 6 4 2 RP14 22RX4 7 5 3 1 8 6 4 2 RP14 22RX4 7 8 5 6 3 4 1 2 C62...

Страница 33: ...GND OUT IN U8 BM1117 ADJ 3 2 1 4 C140 2 7n C140 2 7n 1 2 C138 6 8n C138 6 8n 1 2 R189 100R R189 100R R239 47R R239 47R L11100nH_150mA_ 5 L11100nH_150mA_ 5 J20 IF 06 J20 IF 06 RF 1 2 2 3 3 4 4 R177 0R R177 0R 1 2 L19 330nH 140mA 5 L19 330nH 140mA 5 1 2 C127 100n C127 100n R193 430R R193 430R 1 2 C144 100n C144 100n 1 2 L16 2 4nH_220mA_ 0 05nH L16 2 4nH_220mA_ 0 05nH C125 100n C125 100n R178 1K R178...

Страница 34: ... S t e e h S e t a D of 06 HDMI 20 CV318H A 20 A3 6 10 Wednesday April 20 2011 R85 10 R85 10 1 2 R132 100R R132 100R R144 10 R144 10 R138 4 7K R138 4 7K D42 NC D42 NC 1 2 R254 10 R254 10 R174 10 R174 10 R149 10 R149 10 D32 NC D32 NC 1 2 R143 10 R143 10 R280 4 7K R280 4 7K D9 NC D9 NC 1 2 R95 10 R95 10 1 2 R139 100R R139 100R R110 10 R110 10 1 2 R295 10K R295 10K Q19 3904 Q19 3904 1 2 3 R60 4 7K R6...

Страница 35: ... J23 RCA 1 1 2 R300 75R R300 75R 1 2 C151 47n C151 47n R269 75R R269 75R 1 2 C185 47n C185 47n R209 68R R209 68R C194 1u C194 1u R230 68R R230 68R C163 1u C163 1u J19 PH 3A J19 PH 3A 1 1 2 2 3 3 R228 68R R228 68R C184 47n C184 47n D62 ESD D62 ESD C156 47n C156 47n R232 0R R232 0R R246 10K R246 10K R212 33R R212 33R R271 75R R271 75R 1 2 C155 47n C155 47n C149 1n C149 1n C150 47n C150 47n C222 560p...

Страница 36: ... NC D10 NC 2 1 C56 220n C56 220n 1 2 C99 680n C99 680n 1 2 D14 NC 1N4148 D14 NC 1N4148 R242 10K R242 10K Q27 3904 Q27 3904 1 2 3 R73 10K R73 10K J22 J22 1 2 3 4 5 L8 10UH L8 10UH 1 2 C145 220P C145 220P 1 2 C59 NC 1n 50V C59 NC 1n 50V 1 2 C72 1u C72 1u 1 2 R205 200 R205 200 D15 1N4148 D15 1N4148R108 0R R108 0R J8 NC J8 NC 1 2 3 4 L9 10UH L9 10UH 1 2 C37 NC 330u 35V C37 NC 330u 35V C93 220n 50V C93...

Страница 37: ... h S e t a D of PANEL 20 CV318H A 20 A3 9 10 Wednesday April 20 2011 Title v e R r e b m u N t n e m u c o D e z i S t e e h S e t a D of PANEL 20 CV318H A 20 A3 9 10 Wednesday April 20 2011 L ON H OFF L ON H OFF 7 5 3 1 8 6 4 2 RP5 22RX4 7 5 3 1 8 6 4 2 RP5 22RX4 R49 1k R49 1k R44 2 2k R44 2 2k 1 2 R22 4 7k R22 4 7k C40 4 7p C40 4 7p 1 2 7 5 3 1 8 6 4 2 RP6 22RX4 7 5 3 1 8 6 4 2 RP6 22RX4 R68 22 ...

Страница 38: ...00n C23 100n 1 2 R28 68R R28 68R 1 2 P O H15 P O H15 1 R38 1k R38 1k 1 2 C17 100n C17 100n 1 2 PCB LOGO H13 PCB LOGO H13 1 H6 AHOLE138 H6 AHOLE138 1 R36 4 7k R36 4 7k 1 2 S N H16 S N H16 1 R45 22 R45 22 1 2 R54 0R R54 0R C4 10u C4 10u 1 2 R7 1 5k R7 1 5k 1 2 H10 AHOLE138 H10 AHOLE138 1 QC PASS H12 QC PASS H12 1 Q3 3904 Q3 3904 1 2 3 H9 AHOLE138 H9 AHOLE138 1 D3 ESD D3 ESD H2 TPAD H2 TPAD 1 R53 0R ...

Страница 39: ...or example with button Press MENU button to return to the upper menu Press EXIT button to exit the menu display HDMI CEC Picture menu Picture mode HDMI CEC Setuu the CEC mode Select between Standard Mild Custom Vivid and Power saving You may select the picture mode directly by pressing the PICTURE button on the remote control Contrast Control the difference between the bright and dark regions of t...

Страница 40: ...dby Audio menu Sound Mode Select your desired picture mode as follow Standard Music Theater and Custom Bass Low frequencies intensity Treble High frequencies intensity Balance Left and right stereo audio channels balance Surround Activate or deactivate the Surround function SPDIF Type Select spdif type between PCM and RAW Audio Language Select audio language Sound Mode Bass Treble Balance Surround...

Страница 41: ... timer choosing from 5 to 240 minutes or deactivate this function Time zone Daylight Saving Time Select between On and Off Clock User can not change time manually during DTV mode for time is from signal source directly Select between Pacific Alaska Hawaii Eastern Central and Mountain ...

Страница 42: ...Closed Caption CC Mode Allow you to select the CC Mode among On Off and CC on Mute Basic Selection Allow you to select the basic selection among CC1 CC2 CC3 CC4 Text1 Text2 Text3 and Text4 Advanced Selection Allow you to select the advanced selection among Service1 Service2 Service3 Service4 Service 5 and Service 6 Option Use thumbstick buttons to operating in option menu as your desire DLC Activa...

Страница 43: ...and press button to block or unblock rating MPAA The Movie rating MPAA is used for original movies rated by the Motion Picture Association of America MPAA as broadcasted on cable TV and not edited for television Use button to select N A G PG PG 13 R NC 17 or X Canada Canada English Select among E C C8 G PG 14 and 18 Canada French Select among E G 8ans 13ans 16ans and 18ans Reset RRT Allow you to r...

Страница 44: ... can press button to search the channels automatically The receivable channels will be stored automatically When searching channels press MENU to stop NOTE It will take a while to auto scan in NTSC or ATSC mode please wait patiently Favorite Allow you to add these channels which you desired as the favorite channels Use button to highlight the desired item then press ENTER button to add or remove t...

Страница 45: ...pdate You should reset TV after update Note When Upgrade on the process please don t Power Off Haier MST318 F W upgrade with USB SOP Step 1 Ready for F W Upgrade 1 1 Prepare a USB memory 1 2 Copy the software file merg bin from your computer to the USB memory and remove it from computer s USB port Step 2 F W Upgrade 2 1 AC ON 8 2 Upgrade software ...

Страница 46: ...3 Factory menu 1 You can press MENU 8 8 9 3 to go into factory setting Presse the key exit to shut the factory setting content 1 Version Info the information about the TV and software Service Manual Model No ...

Страница 47: ...l Model No 47 2 ADC setup set ADC value of YUV VGA It can also be auto set Adopt 100 color bar to yuv and Checkerboard signal to vga 3 adjust the color temperature and white balance of each signal source Color Temp ...

Страница 48: ...Service Manual Model No 48 4 Video Quality change value of each picture mode s options 5 Sound Quality change value of each sound mode s options ...

Страница 49: ...Service Manual Model No 49 6 Curve Setting change Video and Sound curve 1 Video curve Setting 2 Sound curve Setting ...

Страница 50: ...50 7 OverScan Change the display coordinate of the source single 8 Aging Mode made the TV into aging mode You can out the mode only use the Key Power 9 SW Upgrade upgrade the software 10 Shipment reset all the amend except ADC ...

Страница 51: ...9 Trouble shooting 9 1 Simple check Service Manual Model No 51 ...

Страница 52: ...oting Whether power suppply and main board is shortcircuit Whether power chip LDO U3 works power chip LDO U6 works diode D29 works power chip U1 works After power on check whether pin 3 4 of J5got 5v pin 1 of J5 got 12v testing point TP7 got 2 5v testing point TP3 got 3 3v testing point TP5 got 1 8v testing point TP1 got 1 32v Y N OK Check U9 power network N Y Y N Check external power suppply ...

Страница 53: ... TPA3110 3 12 N Y Y N Whether the volume MUTE setting is normal Resetting Whether there is signal output from J2 Y N Check external loudspeaker Check and repair amplifier power supply circuit if power supply is normal then change U4 Check whether there is signal output fromU7 audio input pin N Y Y Check and repair network of the connecting part between U7 and U4 Check the peripheral circuit of U7 ...

Страница 54: ...panel supply to Inverter is normal Check the socket that controls Inverter whether the voltage output from pin 4 of J1 is in low level Check the external power supply circuit N N Y Y Check and repair the network that controls Inverter ON OFF Inverter is broken or connecting line is not good ...

Страница 55: ...Sunken TCP lead cracking ACF bonding short Awful environment and something electric enter into LED 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 Service Manual Model No 55 ...

Страница 56: ...ge current and EDS Black Screen B L normal only Black screen display FIIcker Crosstalk LED Vcom imbalance Abnormal Color Only color abormal Capacitance improper bring crosstalk inside LED 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 Service Manual Model No 56 ...

Страница 57: ...s between wire and electrode B L dark B L brightness darker than normal Connect badnessShor t 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 white balck Rotundi...

Страница 58: ...ause 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 Service Manual Model No 58 ...

Страница 59: ...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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