Samsung LW29A13W Service Manual
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Samsung LW29A13W Service Manual

Samsung LW29A13W Service Manual

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SERVICE
LCD-TV
LCD-TV
Chassis
Model
AL29AO
AL40AO
Manual
CONTENTS
3. Disassembly & Reassembly
4. Alignment & Adjustments
6. Exploded View & Parts List
7. Electrical Parts List
11. Panel Description
CONFIDENTIAL

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Summary of Contents for Samsung LW29A13W

  • Page 1: Service Manual

    CONFIDENTIAL LCD-TV Chassis Model AL29AO LW29A13W AL40AO LW40A13W SERVICE Manual LCD-TV CONTENTS 1. Precautions 2. Product Specifications 3. Disassembly & Reassembly 4. Alignment & Adjustments 5. Troubleshooting 6. Exploded View & Parts List 7. Electrical Parts List 8. Block Diagram 9.

  • Page 2: Precautions

    A substitute replacement that does not have the same safety characteristics as the recommended replacement part might create shock, fire and/or other hazards. Product safety is under review continuously and new instructions are issued whenever appropriate. LW29A13W/LW40A13W...

  • Page 3: Servicing Precautions

    Use only an anti-static solder removal device. Some brushing clothes together, or lifting your foot from solder removal devices not classified as “anti-static” a carpeted floor can generate enough static can generate electrical charges sufficient to damage electricity to damage an ESD. ESDs. LW29A13W/LW40A13W...

  • Page 4: Product Specifications

    •Frequency : RFc 80 Hz~15 KHz (at -3 dB) •Response : RFc 80 Hz~20 KHz (at -3 dB) •SyncMaster LW29A13W/LW40A13W comply with SWEDAC (MPRII) recommendations for reduced electromagnetic fields. •Designs and specifications are subject to change without prior notice. LW29A13W/LW40A13W...

  • Page 5: Pin Assignments

    T.M.D.S. Clock Shield +5V Power Ground (return for +5V, HSync. and DDC Data T.M.D.S. Clock+ VSync. Hot Plug Detect Analog Vertical Sync. T.M.D.S. Clock- Analog Green Analog Red Analog Blue Analog Ground Analog Horizontal Sync. (analog R, G & B return) LW29A13W/LW40A13W...
  • Page 6 CONFIDENTIAL 2 Product Specifications 2-3 Timing Chart This section of the service manual describes the timing that the computer industry recognizes as standard for computer-generated video signals. 2-3-1 LCD Panel Mode : 1 mode LW29A13W/LW40A13W...
  • Page 7 CONFIDENTIAL 2 Product Specifications 2-3-2 Supported Modes (1) LW29A13W/LW40A13W...
  • Page 8 CONFIDENTIAL 2 Product Specifications 2-3-2 Supported Modes (2) LW29A13W/LW40A13W...
  • Page 9 CONFIDENTIAL 2 Product Specifications 2-3-2 Supported Modes (1) LW29A13W/LW40A13W...

  • Page 10: Disassembly & Reassembly

    CONFIDENTIAL 3 Disassembly and Reassembly This section of the service manual describes the disassembly and reassembly procedures for the LW29A13W/LW40A13W monitor. WARNING: This monitor contains electrostatically sensitive devices. Use caution when handling these components. 3-1 Disassembly Cautions:1. Disconnect the monitor from the power source before disassembly.
  • Page 11 CONFIDENTIAL 3 Disassembly and Reassembly 3. Remove 4 screws of the cover rear. Pull the cover rear. 3-2 Reassembly Reassembly procedures are in the reverse order of Disassembly procedures. LW29A13W/LW40A13W...

  • Page 12: Alignment & Adjustments

    2. During normal execution of Auto Algorithm the screen image may change. If Auto Algorithm does not excute properly, try one more. 3. After normal execution of Auto Algorithm, confirm optimal settings by observing the contrast of several different patterns on the display. LW29A13W/LW40A13W...
  • Page 13 CONFIDENTIAL 4 Alignments and Adjustments Memo LW29A13W/LW40A13W...

  • Page 14: Troubleshooting

    Does proper DC 2.5 V appear at Check IC804, IC806 and IC807 . Pin 2 of IC804, IC806 and IC807? Does proper DC 3.3 V appear at Check IC800, IC801 and IC805. Pin 2 of IC800, IC801 and IC805? Check IC811 and IC817. LW29A13W/LW40A13W...
  • Page 15 R, G, B signal line. Does the clock pulse appear at Check IC203 and related circuit of IC203. Pin 30 and 31 of IC203? Does the colck pluse Check related circuit of IC838. appear at Pin 4, 10 of IC838? Replace LCD Panel. LW29A13W/LW40A13W...
  • Page 16 Pin 9 (Scart1_Vin) of CN601 Pin 9 (Scart2_Vin) of CN621 Check Pin 3 (YIN), 5 (CIN) Check RCA, S-VHS connector. and 7 (VCR) of CN601? Check related circuit of IC842 IC842 (VSP9437B)? and replace IC842. IC308, IC309 and replace it. LW29A13W/LW40A13W...
  • Page 17 CONFIDENTIAL 5 Troubleshooting 5-5 No Sound (LW29A13W) Does the Low signal at Check Pin 1 and 6 of CN113. Pin 16 and of IC702? Does the Low signal at Replace IC702. Pin 17 of IC702 Check Pin 67 (QSS_IF), Pin 53, 54 (Scart1_In), Pin 50, 51 Check CN703.
  • Page 18 (QSS_IF), Pin 44, 45 (RCA), Check CN629. Pin 41, 42 (Scart1_In), Pin 38, 39 (Scart1_In) of IC18? Does the Digital signal at Check IC18 and related IC18? Pin 8, 9 and 10 of IC15? Check IC15 and realted IC15. LW29A13W/LW40A13W...
  • Page 19 Does the Low signal at Replace IC13. Pin 17 of IC13? Does the Digital signal at Pin 41 Check the CN627. (coaxial), 43 (optical) IC15? Does the Digital signal at Check IC15 and related IC15. Pin 11, 12, 13 of IC15? Check IC14. LW29A13W/LW40A13W...

  • Page 20: Exploded View & Parts List

    CONFIDENTIAL 6 Exploded View and Parts List 6-1 LW29A13W LW29A13W/LW40A13W...
  • Page 21 CONFIDENTIAL 6 Exploded View & Parts List 6-2 LW40A13W LW29A13W/LW40A13W...

  • Page 63: Block Diagram

    CONFIDENTIAL 8 Block Diagram 8-1 LW29A13W LW29A13W/LW40A13W...
  • Page 64 CONFIDENTIAL 8 Block Diagrams 8-2 LW40A13W LW29A13W/LW40A13W...

  • Page 65: Wiring Diagram

    RTA_DATA +14V_INV TXOUT3-_B BL_EN TXCLKOUT+_B LVDS_EN TXCLKOUT-_B TXOUT3+_A CN607 TXOUT2+_B TXOUT3-_A TXOUT2-_B TXCLKOUT+_A TXCLKOUT-_A TXOUT1+_B TXOUT2+_A +14V_INV TXOUT1-_B TXOUT2-_A +14V_INV TXOUT0+_B TXOUT1+_A +14V_INV TXOUT0-_B TXOUT1-_A +14V_INV +14V_INV QSS_IF1 CN627 +28V QSS_IF2 +28V CN112 +28V CN620 CN622 CN601 CN621 CN611 LW29A13W/LW40A13W...

  • Page 66: Schematic Diagrams

    CONFIDENTIAL 9 Schematic Diagrams Memo LW29A13W/LW40A13W...
  • Page 67 PAB(2) PBB(2) PAB(1) C205 C207 PBB(1) PAB(0) 100nF 100nF PBB(0) C211 C212 C213 C214 C215 C216 C217 C218 C219 C220 C228 C229 C230 C231 100nF 100nF 100nF 100nF 100nF 100nF 100nF 100nF 100nF 100nF 100nF 100nF 100nF 100nF LW29A13W/LW40A13W 10-1...
  • Page 68 CONFIDENTIAL 10 Schematic Diagrams 10-2 LW29A13W/LW40A13W...
  • Page 69 Q824 R2225 L311 R305 MC_DATA 22uF C1327 2SC2412K-Q TP512 R2131 TP513 RF_CVBS2 R2239 R2233 slcon22p_1 R2227 R2240 1/16W CN622 R2236 1/16W delete C406 C404 C978 C405 R2113 R2114 R2226 C979 33pF 100nF 100uF 33pF 100uF 16.000 R2228 16.000 LW29A13W/LW40A13W 10-3...
  • Page 70 M_AT(0:21) M_SD(2) UDQM IC840 TAIG_IN M_SD(7) M_SD(4) M_AT(15) CAS_ TSC80251G2D-24CB M_AT(14) M_SD(5) RAS_ M_SD(3) M_SD(6) N_C1 M_AT(12) M_AT(11) M_AT(13) M_AT(9) M_AT(10) M_AT(8) M_AT(0) M_AT(7) M_AT(1) M_AT(6) M_AT(2) M_AT(3) M_AT(5) M_AT(4) VDD3 VSS1 DELETE C1198 C1199 M_DT(0:15) 100nF 100nF 10-4 LW29A13W/LW40A13W...
  • Page 71 100nF 100nF IC823 IC844 FST3257MX NJM2509V M2_RESET R2138 T193 CVBS01 CVBS02 R2197 FLI_DATA C1258 22uF R2139 T190 Scart2_vout MC_DATA Scart1_vout 22uF C1257 R2141 MUTE R2151 R2198 MC_SCLK FLI_SCLK C1259 100uF R2140 T192 MC_SCLK R2152 100uF C1260 MC_DATA NJM2267V LW29A13W/LW40A13W 10-5...
  • Page 72 CONFIDENTIAL 10 Schematic Diagrams 10-6 LW29A13W/LW40A13W...
  • Page 73 AC11 VSS40 B IN DPMSLED2 AF19 DPMSLED1 T206 VSS41 C IN AF13 T207 R1695 K 11 R526 T208 VSS42 D IN LED_RED LED_GREEN E IN F IN G IN SD(0:63) R543 4.7K 1/16W TSCLK C1330 0.01nF R2186 TSA(0:10) LW29A13W/LW40A13W 10-7...
  • Page 74 CONFIDENTIAL 10 Schematic Diagrams 10-8 LW29A13W/LW40A13W...
  • Page 75 G_VOUT5 FLICB(8) U_CRCBN8 VSS_8 FLICB(3) U_CRCBN3 VDD_8 FLICB(6) PC(12) U_CRCBN6 G_YOUT6 FLICB(7) PC(13) FLICB(0:9) G_YOUT7 U_CRCBN7 FLICB(9) PC(14) U_CRCBN9 G_YOUT8 FLI_HREF PC(15) HBLANKI G_YOUT9 FLI_VREF VBLANK1 VSS_7 VDD_7 VDD_3 FLIY(0:9) FLI_CLK C951 R393 C952 4.7K 10nF 100nF 1/16W LW29A13W/LW40A13W 10-9...
  • Page 76 CONFIDENTIAL 10 Schematic Diagrams 10-10 LW29A13W/LW40A13W...
  • Page 77 T215 PCCLK VSS32 R614 PCHREF VSS33 T216 DIHS PCHSYNC VSS34 DIVS T217 VSS35 PCVSYNC VSS36 VSS37 AC22 VSS38 AC17 VSS39 AC11 VSS40 AF19 VSS41 AF13 VSS42 JSD(0:63) JTSBA0n JTSDQM R1704 JTSBA1n R1705 DELETE JTSRASn JTSWEn JTSA(0:10) JTSCKEn JTSCASn LW29A13W/LW40A13W 10-11...
  • Page 78 CONFIDENTIAL 10 Schematic Diagrams 10-12 LW29A13W/LW40A13W...
  • Page 79 IC409 R2172 TXIN23 PWRDWN 74LCX32MX 26 VCC2 TXCLKIN MCA(14) IN A 27 TXIN24 TXIN26 MCA(13) MCA(17) IN B TXIN25 GND4 MCA(16) IN C IN D MCA(12) IN E PAGE00 MCA(15) IN F IN G PAGE01 C621 C1328 C622 LW29A13W/LW40A13W 10-13...
  • Page 80 CONFIDENTIAL 10 Schematic Diagrams 10-14 LW29A13W/LW40A13W...
  • Page 81 100nF SK34 470pF 10.000000 6.3V 1/16W 1/16W 1/16W OS-CON +A2.5V_VID 2402-001034 +5V_IN R812 FT803 BLM41P600S IC804 C816 LM317SX R2219 100nF 1/16W R2216 1.2K FT804 BLM41P600S T351 T352 T134 VOUT_1 MAINPW 1/16W VOUT_2 Q820 2SC2412K-Q C815 10.000000 R815 1/16W LW29A13W/LW40A13W 10-15...
  • Page 82 CONFIDENTIAL 10 Schematic Diagrams 10-16 LW29A13W/LW40A13W...
  • Page 83 BLM41P600S 2SC2412K-Q Inverter Gound should be seperate from Input connector +14V_INV +14V_INV +14V_INV +14V_INV CN609 CN610 CN607 CN608 slcon10p slcon10p slcon10p slcon10p TP408 TP412 TP400 TP404 TP409 TP413 TP401 TP405 TP410 TP414 TP402 TP406 TP411 TP415 TP403 TP407 LW29A13W/LW40A13W 10-17...
  • Page 84 COUT LINE_LOUT SLOUT SWOUT AC3_CTRL 5.6K 5.6K 5.6K 5.6K 5.6K 5.6K R118 R122 R123 R120 R121 R119 47uF 47uF 47uF 47uF 47uF 47uF +12V +12V-1 C100 47uF 100nF FRO-1 FLO-1 TDA7050T/N3 R117 100uH +6V-BIAS R115 +6V-BIAS R116 100uF 10-18 LW29A13W/LW40A13W...
  • Page 85 CONFIDENTIAL 10 Schematic Diagrams LW29A13W/LW40A13W 10-19...
  • Page 86 Scart1_lin CN630 slcon6p Scart2_rout TP21 TP22 Scart2_rin R160 QSS_IF1 1/16W 0 TP37 TP17 Scart2_lout TP39 TP18 Scart2_lin R161 QSS_IF2 1/16W TP38 R165 1/16W 0 TP19 QSS_IF1 TP14 RCA_L $O,$V TP15 RCA_R R164 1/16W TP16 QSS_IF2 TP26 slcon30p CN629 10-20 LW29A13W/LW40A13W...
  • Page 87 47uF IC12 74VHC157MX MC74HC126ADR2 MUX-SEL MUX-SEL LACK 4586-LACK 4586-LACK MUX-SEL MSP-LACK 4586-SDT0 BCLK LACK MSP-SDT0 4586-BCLK 4586-BCLK SDT0 MSP-BCLK 4586-MCLK C166 47nF C104 BCLK MSP-MCLK 100nF RESET-B MCLK 4586-MCLK C189 47uF C102 C103 100nF 100nF 22uF K3750HCE 14.31818MHz LW29A13W/LW40A13W 10-21...
  • Page 88 CONFIDENTIAL 10 Schematic Diagrams 10-22 LW29A13W/LW40A13W...
  • Page 89 R127 IC102 100uF 4.7K IRU1030-33CM 1/16W FT208 BLM41P600S FT209 BLM41P600S +3.3V_FPGA +1.8V_FPGA FAN1117AD18 slcon14p_1 L100 CN704 IC103 3.3UH KA317MR C110 C111 C112 10nF 100nF 100uF VOUT C113 R128 IC104 100uF 4.7K IRU1030-33CM 1/16W C114 C115 100uF 10uF R182 LW29A13W/LW40A13W 10-23...
  • Page 90 A7 30 ADDR[0] ADDR[7] ADDR[0] ADDR[7] ADDR[0] ADDR[7] R620 AR28 DQF15 ADDR[1] ADDR[6] ADDR[1] ADDR[6] ADDR[1] ADDR[6] 23 A2 A5 28 ADDR[2] ADDR[5] ADDR[2] ADDR[5] ADDR[2] ADDR[5] ADDR[3] ADDR[3] ADDR[3] ADDR[4] ADDR[4] ADDR[4] VDD1 VSS1 VDD1 VSS1 VDD1 VSS1 10-24 LW29A13W/LW40A13W...
  • Page 91 TXOUT2+ R_FB TXCLKOUT- BOB(7) TXIN17 TXCLKOUT+ BOB(1) TXIN18 TXOUT3- BOB(2) TXIN19 TXOUT3+ GND3 LVDSGND2 BOB(3) TXIN20 PLLGND BOB(4) TXIN21 PLLVCC BOB(5) TXIN22 PLLGND1 R735 TXIN23 PWRDWN VCC2 TXCLKIN HS_FPGA TXIN24 TXIN26 TXIN25 GND4 VS_FPGA R736 C706 C707 C708 LW29A13W/LW40A13W 10-25...
  • Page 92 R127 IC102 100uF 4.7K IRU1030-33CM 1/16W FT875 BLM41P600S FT876 BLM41P600S +3.3V_FPGA +1.8V_FPGA FAN1117AD18 L100 IC103 3.3UH slcon14p_1 KA317MR CN704 C110 C111 C112 10nF 100nF 100uF VOUT C113 R128 IC104 100uF 4.7K IRU1030-33CM 1/16W C114 C115 100uF 10uF R182 10-26 LW29A13W/LW40A13W...
  • Page 93 AN29 ADDR[0] ADDR[7] ADDR[0] ADDR[7] ADDR[0] ADDR[7] R620 AR28 DQF15 ADDR[1] ADDR[6] ADDR[1] A6 29 ADDR[6] ADDR[1] ADDR[6] ADDR[2] ADDR[5] ADDR[2] ADDR[5] ADDR[2] ADDR[5] ADDR[3] ADDR[3] ADDR[3] ADDR[4] ADDR[4] ADDR[4] VDD1 VSS1 26 VDD1 VSS1 VDD1 VSS1 26 LW29A13W/LW40A13W 10-27...
  • Page 94 TXOUT2+ R_FB TXCLKOUT- BOB(7) TXIN17 TXCLKOUT+ BOB(1) TXIN18 TXOUT3- BOB(2) TXIN19 TXOUT3+ GND3 LVDSGND2 BOB(3) TXIN20 PLLGND BOB(4) TXIN21 PLLVCC BOB(5) TXIN22 PLLGND1 R735 TXIN23 PWRDWN VCC2 TXCLKIN TXIN24 HS_FPGA TXIN26 TXIN25 GND4 VS_FPGA R736 C706 C707 C708 10-28 LW29A13W/LW40A13W...
  • Page 95 10nF 10nF 100uF 100uF 47uH FT872 C1144 C1140 BLM41P600S 100nF 10uF R1859 C1074 C1080 C1092 D332 C1077 C1066 R1843 10nF 100nF SS24 470pF 100uF 4.7K 1/16W VOLTAGE 1/16W 16V,100uF,105 C +5V_IN Q803 2SC2412K-Q R826 R827 100K MAINPW 1/16W LW29A13W/LW40A13W 10-29...
  • Page 96 TP97 L733 Scart2_lout TP84 R1891 TP94 L734 C1120 330nF TP83 Scart2_lin TP93 C1137 R1556 C1136 R1552 QSS_IF1 TP86 330PF A_ST_BY 330PF TP96 RCA_L TP85 TP95 RCA_R TP88 A_SHUTDWNB +5V_IN TP90 TP87 TP89 MAINPW TP92 TP91 MSPPW slcon22p_1 CN623 10-30 LW29A13W/LW40A13W...
  • Page 97 CONFIDENTIAL 10 Schematic Diagrams LW29A13W/LW40A13W 10-31...
  • Page 98 CONFIDENTIAL 10 Schematic Diagrams Memo 10-32 LW29A13W/LW40A13W...
  • Page 99 Samsung Electronics Co.,Ltd. 416, Maetan-3Dong, Paldal-Gu, Suwon City, Kyungki-Do, Korea. Printed in Korea P/N : BN82-00081B-00...

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