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SERVICE MANUAL
1. Caution
2. Specification
3. Alignment Procedure
4. Block Diagram
5. Scheme Diagram
6. PCB Layout
7. Trouble Shooting
8. Explode Diagram
9 BOM List
This manual is the latest at the time of printing, and does not
include the modification which may be made after the printing, by
the constant improvement of product
TCL
L24D20 MT23C-LA
2
6
7
2
2
27
35
36
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Summary of Contents for TCL L24D20
- Page 1 SERVICE MANUAL L24D20 MT23C-LA 1. Caution 2. Specification 3. Alignment Procedure 4. Block Diagram 5. Scheme Diagram 6. PCB Layout 7. Trouble Shooting 8. Explode Diagram 9 BOM List This manual is the latest at the time of printing, and does not...
- Page 2 SCHNEIDER ELECTRONICS GMBH-GERMANY 1. CAUTION CA UTION: Use of controls, adjustments or procedures other than those specified herein may result in hazardous radiation exposure. CA UT ION : T O RE DUCE TH E RIS K OF CA U T ION ELECTR ICA L SHOCK, DO NOT RE MOVE COVER (OR BACK).
- Page 3 SCHNEIDER ELECTRONICS GMBH-GERMANY IMPORTANT SAFETY INSTRUCTIONS CAUTION: Read all of these instructions. Sa ve these instructions for later use . Follo w all W arnings and Instructions marked on the audio equipment. 1. Read Instructions-All the safety and operating instructionsshouldbe read before the productis operated. 2.
- Page 4 SCHNEIDER ELECTRONICS GMBH-GERMANY PROTECTION AND LOCATION OF YOUR SET Do not use this television set near water ... for example, near a bathtub, washbowl, kitchen sink, or laundry tub, in a wet basement, or near a swimming pool, etc. Never expose the set to rain or water. If the set has been exposed to rain or water, unplug the set from the wall outlet and refer servicing to qualified service personnel.
- Page 5 SCHNEIDER ELECTRONICS GMBH-GERMANY OPERATION OF YOUR SET 18. This television set should be operated only from the type of power source indicated on the marking label.If you are not sure of the type of power supply at your home, consult your television dealer or local power company. For television sets designed to operate from battery power, refer to the operating instructions.
- Page 6 TCL MULTIMEDIA LCD TV SPECIFICATION RELEASE Version: V1.1 Issued Date: 2011.09.23 Model: LED24D20B/MT23C-LA PICTURE Panel Size (inch) 23.6" Category LCD TV Aspect Ratio 16:9 Color Temperature Normal/Warm/Cool SIGNAL FORMAT CAPABILITY Energy saving/Normal/Sunshine Backlight Adjustable & ALC(Adaptive Luma Control) Component Video Format...
- Page 7 TCL-CRT CRT/SJ/FK02-2010 Alignment Procedure Version V6.0 PREPARED BY : chunyu han/yajian li /junzan gong DATE: 2010-12-17 APPROVED BY : DATE:...
- Page 8 TCL-CRT CRT/SJ/FK02-2010 Record Of Revision: Version Date Page Description V4.0 2010/08/09 3;4;6 3;11 PRODUCTION add GAMMA and NVM data are revision V5.0 2010/8/27 Version V5.0 2010/8/27 V6.0 2010-12-13 V6.0 2010-12-13 No S-VIDEO function for MT23C chassis V6.0 2010-12-13 V6.0 2010-12-13...
- Page 9 TCL-CRT CRT/SJ/FK02-2010 LCD display ntegration of VIDEO and PC;It has high quality picture, little cubage, little weight, energy saving and ;little rays The way to enter Factory Mode Method one move the cursor to “Contrast” item then press the “9”, “7”, “3”, “5” keys continuously on RC...
- Page 10 TCL-CRT CRT/SJ/FK02-2010 3.1 Software part number should be made reference to the latest BOM. 3.2 You see software version on the screen when enter the factory Mode. CPU: V8-0MT2311-LF1V*** ( software version) DAT:XXXXXX ( software edit date) The adjustment for the tv.
- Page 11 TCL-CRT CRT/SJ/FK02-2010 NOTE Factory Menu” Definition...
- Page 12 TCL-CRT CRT/SJ/FK02-2010 Brightnes Brightness0 Brightness2...
- Page 13 TCL-CRT CRT/SJ/FK02-2010 Brightness5 Brightness7 Brightness1 Contrast Contrast0 Contrast25 Contrast 50 Contrast 75 Contrast 100 Color Color 0 Color 25 Color 50 Color 75 Color 100 Tint Tint 0 Tint 30 Tint 60...
- Page 14 TCL-CRT CRT/SJ/FK02-2010 SSC LVDS ADJUST LVDS Modulation LVDS Percentage...
- Page 15 TCL-CRT CRT/SJ/FK02-2010 Table 6-1 Source select On: It support this source; NOTE: No S-VIDEO function for MT23C chassis Table 6-2 AUTO AUTO On/Off TV’s color system select On: It support this system; On/Off Off: It does not support this PAL-M...
- Page 16 TCL-CRT CRT/SJ/FK02-2010 SECAM On/Off /////// On/Off ////// On/Off Table 6-3 AUTO AUTO On/Off TV’s color system select On: It support this system; On/Off Off: It does not support this PAL-M NTSC358 On/Off system PAL-N NTSC443 On/Off NTSC358 SECAM On/Off NTSC443...
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Page 17: Hotel Mode
TCL-CRT CRT/SJ/FK02-2010 8)HOTELMODE Note... - Page 18 TCL-CRT CRT/SJ/FK02-2010 Eye care for sale in domestic market ROWA” brand “ Set On for MT23C chassis sale in domestic market . On,, If speaker change to 42-35716F-XX0G will be set Off. sale in domestic market Chip list of software programming...
- Page 19 TCL-CRT CRT/SJ/FK02-2010 A Please ensure the software you are using has a correct file name. The name is “mt23lf”; B Insert the USB disk to the USB socket of the set for which you are going to upgrade program. C,Enter the Menu, select SW UPDATE of APP, press button of...
- Page 20 TCL-CRT CRT/SJ/FK02-2010 Project ID start administer for 131 Version of TCL P/N Project ID NVM DATA IVO_M236MWF1 CLI_T6V511 AUO_T260XW06 CMO_V315B6_L01 AUO_M185XW01_V6 AUO_M185XW01_VD CMO_V236H1_LE2 4A-LCD24E-CM1 AUO_T260XW06_V2 4A-LCD26E-AU1 4A-LCD26E-BK1...
- Page 21 TCL-CRT CRT/SJ/FK02-2010 131 version of revision project ID NVM date 1. Since ,If using back version of 131 front version of NULL* is no using.
- Page 22 MT23...
- Page 23 STRAPPING MODE SBU : +5VSB R223 AVDD3V3 TCLNO: 01-0MT23C-MAB2XG OPWRSB HI=>POWER_OFF R224 LO=>POWER_ON R220 TCL Thomson Electronics Singapore Pte. Ltd. 100R 8 Jurong Hall Road #28-01/06 LVDS_PWR_CTRL R225 R218 OPWRSB Q203 The JTC Summit SINGAPORE 609434 R221 BT3904 DESIGNATION Tel (65) 63092900 Fax (65) 63092999...
- Page 24 C342 DD-MM SBU : 0.1U 0.1U TCLNO: DD-MM 0R L311 DVDD3V3IO 01-0MT23C-MAB2XG TCL Thomson Electronics Ltd. DD-MM B Building, TCL Tower, Nanhai Road Nanshan District, Shenzhen, Guangdong DESIGNATION DD-MM C323 C322 C321 Tel +86-755-3331xxxx Fax +86-755-3331xxxx 0.1U 0.1U DRAWN Index-Lab...
- Page 25 U1TX TCLNO: Q605 DD-MM Q606 BT3904 R660 BT3904 01-0MT23C-MAB2XG TCL Thomson Electronics Ltd. R652 DD-MM C609 B Building, TCL Tower, Nanhai Road AVDD3V3 C610 R661 100P Nanshan District, Shenzhen, Guangdong DESIGNATION 100P DD-MM Tel +86-755-3331xxxx Fax +86-755-3331xxxx DRAWN Index-Lab DATE...
- Page 26 0.01U C908 DD-MM SBU : 100R TCLNO: DD-MM R926 C909 01-0MT23C-MAB2XG TCL Thomson Electronics Ltd. DD-MM B Building, TCL Tower, Nanhai Road Nanshan District, Shenzhen, Guangdong DD-MM DESIGNATION Tel +86-755-3331xxxx Fax +86-755-3331xxxx Index-Lab DATE NAME DESCRIPTION Last modif DRAWN CHECKED...
- Page 29 Power OK, backlight OK,no picture Check the voltage of Replace R270 pin ‘s’ of q208 and R271 Check the voltage of ‘g’ of Check the output of Q208 Q208 OR replace Q208 Measure the wave of Check the supply of U201 LVDS signal Replace panel...
- Page 30 TV no picture Measure the wave Check the voltage of repair the circuit of of pin 8,9 of U1 pin 6 ,7 of u1 U101 and Q102 Check the circuit measure the wave of between U1 and Check the U201 SDA and SCL U201 Replace u1...
- Page 31 AV no picture Upgrade Software of U202 ok? Replace Check the components the bad between AV port and U201 Replace Check U201 ok? U201 VGA/YPbPr no picture Check the peripheral components of U201 Check the components between Replace VGA/YPbPr port and U201 the bad Replace the bad...
- Page 32 Picture OK, all source no sound Check the voltage of Repair the 12v supply pin 3,13 of U602 Check the pin 6 of u602 Check q607,q608,q609 Check the pin 7 of u602 repair R691 and R692 Check the wave of PIN 4,12 of U602 check u601 and volume control Replace U602 or replace...
- Page 33 Standby +5.0VSB OK, +5.0V NG Check the voltage of Check before Q305 pin ‘s’ of q305 Check the voltage of ‘g’ of Check the output of Q305 Q305 OR replace Q305 Check U303,U304 short to Gnd Replace the bad...
- Page 34 The picture bad Replace the wire from P202A to t-com Replace the Replace panel chassis Check the circuit between p202a and U201 Upgrade the software...
- Page 36 PRI PACKING BAG - RED 186C 01 00 00 R=N T8-24D207K-PA22Z 74-080060-50HEM DEC PACKING BAG -- R=Y T8-24D207K-PA22Z 76-907370-0BT RAW CARTON-BOX L24D20-EM 684MM 134MM 491 T8-24D207K-PA22Z 70-24D20E-HAG9A TV PRI WARRANTY CARD --- R=Y T8-24D207K-PA22 63-B4012T-BF5G SCREW-ST 4MM 12MM ISO 19 R=Y MTG R.C&WALL S...
- Page 37 T8-24D207K-BS2Z 74-030050-50HEM DEC PACKING BAG 500X300MM R=N PACK STAND BAS H4-YD20S7K-AG61A T8-24LA7K-MA9 ASS'Y - MAIN BD T8-24LA7K-MA9 07-380FF5-NF1T TUNER A PAL 38MHZ F CONNECTOR BACK TDQ-3 T8-24LA7K-MA9 13-M24C16-MNB2 IC EEPROM EEPROM M24C16-WMN6P (ST) U203(CP) T8-24LA7K-MA9 13-MT8223-L0B OPTICOUP MT23 IC TRAY QFP 128 MT8223LMFU U201 T8-24LA7K-MA9 13-TDA151-7PP...
- Page 38 T8-24LA7K-MA9ST 09-LL4148-ATX SMD. SWITCHING DIODE LL4148 D202 T8-24LA7K-MA9ST 09-LL4148-ATX SMD. SWITCHING DIODE LL4148 D200 T8-24LA7K-MA9ST 09-LL4148-ATX SMD. SWITCHING DIODE LL4148 D102 T8-24LA7K-MA9ST 12-2N7002-0BX MOSFET-SMD N 60V 0.3A 0.83W SOT23 2N7002 Q901 T8-24LA7K-MA9ST 12-2N7002-0BX MOSFET-SMD N 60V 0.3A 0.83W SOT23 2N7002 Q103 T8-24LA7K-MA9ST 12-2N7002-0BX...
- Page 39 T8-24LA7K-MA9ST 19-BC0000-JTX SMD.RES 0 OHM 1/8W +/-5% L310 T8-24LA7K-MA9ST 19-BC0000-JTX SMD.RES 0 OHM 1/8W +/-5% L312 T8-24LA7K-MA9ST 19-BC0000-JTX SMD.RES 0 OHM 1/8W +/-5% L304 T8-24LA7K-MA9ST 19-BC0000-JTX SMD.RES 0 OHM 1/8W +/-5% L302 T8-24LA7K-MA9ST 19-BC0000-JTX SMD.RES 0 OHM 1/8W +/-5% L320 T8-24LA7K-MA9ST 19-BC0000-JTX SMD.RES 0 OHM 1/8W +/-5%...
- Page 40 T8-24LA7K-MA9ST 19-GA0102-JTX SMD. RES 1K OHM 1/16W +/-5% R912 T8-24LA7K-MA9ST 19-GA0102-JTX SMD. RES 1K OHM 1/16W +/-5% R112 T8-24LA7K-MA9ST 19-GA0102-JTX SMD. RES 1K OHM 1/16W +/-5% R208 T8-24LA7K-MA9ST 19-GA0103-JTX SMD. RES 10K OHM 1/16W +/-5% R231 T8-24LA7K-MA9ST 19-GA0103-JTX SMD. RES 10K OHM 1/16W +/-5% R227 T8-24LA7K-MA9ST 19-GA0103-JTX...
- Page 41 T8-24LA7K-MA9ST 19-GA0223-JTX SMD. RES 22K OHM 1/16W +/-5% R649 T8-24LA7K-MA9ST 19-GA0223-JTX SMD. RES 22K OHM 1/16W +/-5% R644 T8-24LA7K-MA9ST 19-GA0223-JTX SMD. RES 22K OHM 1/16W +/-5% R645 T8-24LA7K-MA9ST 19-GA0223-JTX SMD. RES 22K OHM 1/16W +/-5% R392 T8-24LA7K-MA9ST 19-GA0223-JTX SMD. RES 22K OHM 1/16W +/-5% R382 T8-24LA7K-MA9ST 19-GA0223-JTX...
- Page 42 T8-24LA7K-MA9ST 19-GA0561-JTX SMD. RES 560 OHM 1/16W +/-5% R216 T8-24LA7K-MA9ST 19-GA0680-JTX SMD.RES 68 OHM 1/16W +/-5% T8-24LA7K-MA9ST 19-GA0682-JTX SMD.RES 6800 OHM 1/16W +/-5% R615 T8-24LA7K-MA9ST 19-GA0682-JTX SMD.RES 6800 OHM 1/16W +/-5% R605 T8-24LA7K-MA9ST 19-GA0750-JTX SMD. RES 75 OHM 1/16W +/-5% R970 T8-24LA7K-MA9ST 19-GA0750-JTX...
- Page 43 T8-24LA7K-MA9ST 28-BC0225-ZFX CAP.CER,SMD 2U2F 16.0V 0805 - C116 T8-24LA7K-MA9ST 28-BC0475-ZFX CAP.CER,SMD 4U7F 16V DCV 0805 - C382 T8-24LA7K-MA9ST 28-BC0475-ZFX CAP.CER,SMD 4U7F 16V DCV 0805 - C384 T8-24LA7K-MA9ST 28-HB0101-JCX CAP.CER,SMD 100P0F 50V DCV 0402 - C609 T8-24LA7K-MA9ST 28-HB0101-JCX CAP.CER,SMD 100P0F 50V DCV 0402 - C610 T8-24LA7K-MA9ST 28-HB0101-JCX...
- Page 44 T8-24LA7K-MA9ST 28-HC0104-KBX CAP.CER,SMD 100NF 16V 0402 - C303 T8-24LA7K-MA9ST 28-HC0104-KBX CAP.CER,SMD 100NF 16V 0402 - C301 T8-24LA7K-MA9ST 28-HC0104-KBX CAP.CER,SMD 100NF 16V 0402 - C361 T8-24LA7K-MA9ST 28-HC0104-KBX CAP.CER,SMD 100NF 16V 0402 - C390 T8-24LA7K-MA9ST 28-HC0104-KBX CAP.CER,SMD 100NF 16V 0402 - C309 T8-24LA7K-MA9ST 28-HC0104-KBX CAP.CER,SMD 100NF 16V 0402 -...
- Page 45 T8-24LA7K-MA9 47-USB011-XX1 SOCKET USB R N USB-04WE-BHY P905 H4-YD20S7K-AG61A T8-24D207K-IV5 ASS'Y - LED DRIVER FOR AUO M185XW01VD T8-24D207K-IV5 40-L24D20-DRA2XG PCB UR 200*240MM 24PC DOUBLESIDED 1.6MM T8-24D207K-IV5 T8-24D207K-IV5ST ASS'Y - INVERTER BD T8-24D207K-IV5ST 09-G6010E-STX D-BR,SMD 60V 1A 0.53V SOD128 PMEG6010EP D801...
- Page 46 46-40135W-06SG CONN TJC3 06PIN 2.0MM MALE ST TCL3304 P801 H4-YD20S7K-AG61A T8-24D207G-FB2 ASS'Y - F.CTL BD T8-24D207G-FB2 02-IRR002-X13T IR RECEIVER 37.9KHZ 5V HM238-WB92 T8-24D207G-FB2 40-L24D20-FBE2XG TV PCB FB BD R=Y T8-24D207G-FB2 46-35135W-06XG PIN BASE PH-06AW P001 T8-24D207G-FB2 48-TAC001-XX0 TACT SWITCH K003...