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Samsung LW15M23C Service Manual
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Samsung LW15M23C Service Manual

Samsung LW15M23C Service Manual

Tft-lcd tv ve15eo chassis
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SERVICE
TFT-LCD TV
TFT-LCD TV
Chassis
Model
VE15EO
LW15M23C
Manual
4. Alignment & Adjustments
8. Block Diagram
10. PCB Layout
12. Panel Description
CONTENTS

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Summary of Contents for Samsung LW15M23C

  • Page 1: Table Of Contents

    TFT-LCD TV Chassis Model VE15EO LW15M23C SERVICE Manual TFT-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. Wiring Diagram 10.
  • Page 2 Samsung Electronics Co.,Ltd. ❈ This Service Manual is a property of Samsung 416, Maetan-3Dong, Yeongtong-Gu, Suwon City, Kyungki-Do, Korea, 443-742 Electronics Co., Ltd. Printed in Korea Any unauthorized use of Manual can be punished P/N : BN82-00103M-00 under applicable International and/or domestic law.

  • Page 3: 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. LW15M23C...
  • Page 4 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. LW15M23C...

  • Page 5: Product Specifications

    – MAX Internal speaker Output : Right => 2.5W Left => 2.5W Sound Characteristic – Headphone Out: 10mW max (3.50 Stereo Jack 32) – Output Frequency : RF => 80 Hz ~ 15 kHz at -3dB A/V => 80 Hz ~ 20 kHz at -3dB LW15M23C...
  • Page 6 2-2-4 D-SUB 2-2-3 A/V Separate RCA Yellow CVBS Audio L Green RCA White Blue GND (DDC Return) Audio R RCA Red GND-Red GND-Green GND-Blue No Connection GND-Sync / Self Test DDC Data H - Sync V - Sync DDC Clock LW15M23C...
  • Page 7 B : Horizontal sync width O : Frame time total P : Vertical sync width C : Back porch D : Active time Q : Back porch R : Active time E : Front porch S : Front porch LW15M23C...
  • Page 8 2 Product Specifications Memo LW15M23C...

  • Page 9: Disassembly & Reassembly

    3 Disassembly and Reassembly This section of the service manual describes the disassembly and reassembly procedures for the LW15M23C TFT-LCD monitors. 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 10 2. Remove 2 screws for the lamp unit. Slide the lamp unit out. 3. Slide the lamp unit out. Please take out the lamp unit from the LCD module. Slide the lamp unit out. LW15M23C...
  • Page 11 3 Disassembly and Reassembly 4. Please fix the new lamp units on the LCD module : opposite process 2 and 3. 3-3 Reassembly Reassembly procedures are in the reverse order of disassembly procedures. LW15M23C...
  • Page 12 3 Disassembly and Reassembly Memo LW15M23C...
  • Page 13 6. Do not attempt to connect or disconnect any wire while the TV is turned on. Make sure that the power cord is disconnected before replacing any parts. 7. To protect aganist shock hazard, use an isolation transform. LW15M23C...
  • Page 14 7 . A u t o F M 8 . A C C / A C M 9 . G a m m a L U T 1 0 . E S M 11 . S y s t e m LW15M23C...
  • Page 15 [ FL] x=270 20, y=270 20 x=270 20, y=275 20 x=250 30, y=260 30 SPEC L ow x=270 10, y=270 10 , Y=0. 3 0. 1 [ FL] x=260 20, y=260 20 x=280 20, y=290 20 x=250 30, y=255 30 LW15M23C...
  • Page 16 L o w e r E n d F r A p p M i d S t a r t E s m C t r l 1 2 7 M i d E n d 1 0 0 LW15M23C...
  • Page 17 - Display the current check sum size of the MICOM. 10. Reset - Initializes the data in the MICOM. 11. T-VNCNEU-0007 2004/03/02 - Display the MICOM program version. 4-2-3 White Balance High 285, 295 285, 295 x, y x, y LW15M23C...
  • Page 18 4 Alignments and Adjustments Memo LW15M23C...

  • Page 19: Troubleshooting

    Check IC101 and IC105. appear at FT144? Does proper B3.3V Check IC111. appear at Pin 2 of IC111? Does proper DC B1.8V Check IC112. appear at Pin 4 of IC112? Does proper DC B8V Check IC109. appear at FT130? LW15M23C...
  • Page 20 5 Troubleshooting Does proper DC 5V_P appear Check IC104. at Pin 2 of IC104? Does proper DC 9V_S Check IC110. appear at FT127? Does proper DC B5V Check IC108. appear at FT131? Check IC704 and IC802. LW15M23C...
  • Page 21 5 Troubleshooting WAVEFORMS LW15M23C...
  • Page 22 5 Troubleshooting 5-2 No Picture (TV, Video, S-Video, DVD) Check C800(TV) Check C822(Video) Check the input signal. Check C824(S-Video) Check C821(SCART)? Check the IC802. WAVEFORMS LW15M23C...
  • Page 23 Does the signal appear at Pin 123, Check IC802. 124 of IC802 (VCTj)? Does the signal appear Check the IC600 (Audio amp) at Pin 2, 5 of Pin 16, 19 IC600? and related circuit of IC600. Replace the speaker. LW15M23C...
  • Page 24 5 Troubleshooting Memo LW15M23C...
  • Page 25 6 Exploded View and Parts List ❈ You can search for updated part codes through ITSELF web site. URL : http://itself. sec. samsung.co.kr LW15M23C...

  • Page 26: Exploded View & Parts List

    6 Exploded View & Parts List Memo LW15M23C...

  • Page 27: Electrical Parts List

    7 Electrical Parts List ❈ You can search for updated part codes through ITSELF web site. URL : http://itself.sec.samsung.co.kr/ 7-1 Main PCB Parts Level Loc. No. Code No. Description Specification Remarks VE15EO S3-VE15EO SEC,XH-L06 BN94-00527X ASSY PCB MAIN-S3 VE15EO 0204-002420...
  • Page 28 C612 C-CER,CHIP 2.2nF,10%,50V,X7R,TP,1608,- 2402-001042 C613 C-AL,SMD 100uF,20%,16V,GP,TP,6.6x6.6x5.4mm 2203-001402 C614 C-CER,CHIP 220nF,+80-20%,16V,Y5V,TP,1608 2203-000189 C615 C-CER,CHIP 100nF,+80-20%,25V,Y5V,TP,1608, 2203-001652 C616 C-CER,CHIP 470nF,+80-20%,16V,Y5V,TP,1608 2203-001402 C617 C-CER,CHIP 220nF,+80-20%,16V,Y5V,TP,1608 2203-001402 C618 C-CER,CHIP 220nF,+80-20%,16V,Y5V,TP,1608 2203-001652 C619 C-CER,CHIP 470nF,+80-20%,16V,Y5V,TP,1608 2203-000189 C620 C-CER,CHIP 100nF,+80-20%,25V,Y5V,TP,1608, 2203-001402 C621 C-CER,CHIP 220nF,+80-20%,16V,Y5V,TP,1608 LW15M23C...
  • Page 29 C804 C-CER,CHIP 0.022nF,5%,50V,C0G,TP,1608 2203-000626 C805 C-CER,CHIP 0.022nF,5%,50V,C0G,TP,1608 2203-000189 C808 C-CER,CHIP 100nF,+80-20%,25V,Y5V,TP,1608, 2203-000257 C809 C-CER,CHIP 10nF,10%,50V,X7R,TP,1608 2203-000189 C810 C-CER,CHIP 100nF,+80-20%,25V,Y5V,TP,1608, 2203-000257 C811 C-CER,CHIP 10nF,10%,50V,X7R,TP,1608 2203-000257 C812 C-CER,CHIP 10nF,10%,50V,X7R,TP,1608 2203-001052 C813 C-CER,CHIP 0.56nF,10%,50V,X7R,TP,1608 2203-001052 C814 C-CER,CHIP 0.56nF,10%,50V,X7R,TP,1608 2203-001052 C816 C-CER,CHIP 0.56nF,10%,50V,X7R,TP,1608 LW15M23C...
  • Page 30 D200 DIODE-SWITCHING MMBD4148SE,100V,200MA,SOT-23,TP 0403-001425 D201 DIODE-ZENER BZX84C33,31-35V,350MW,SOT-23,TP 0401-001056 D600 DIODE-SWITCHING MMBD4148SE,100V,200MA,SOT-23,TP 0407-000123 D601 DIODE-ARRAY DAN202K,80V,100MA,CA2-3,SOT-23,TP 0403-001435 D602 DIODE-ZENER QZX363C5V6,5.32-5.88V,200MW,SOT-363,TP 0403-001052 D603 DIODE-ZENER RD8.2MB,7.7-8.7V,200MW,SOT-23,TP 0403-001052 D604 DIODE-ZENER RD8.2MB,7.7-8.7V,200MW,SOT-23,TP 0401-001056 D701 DIODE-SWITCHING MMBD4148SE,100V,200MA,SOT-23,TP 0401-001056 D702 DIODE-SWITCHING MMBD4148SE,100V,200MA,SOT-23,TP 0401-001056 D800 DIODE-SWITCHING MMBD4148SE,100V,200MA,SOT-23,TP LW15M23C...
  • Page 31 SMD12X12X6,EOS,33UH,15%,-,0.12ߟ MAX,2A,DR10X5.0MM,18.5TS,12X12X6,1.8MM,1UEW 0. 3301-001145 FT130 BEAD-SMD 60ohm,4516,6000mA,TP,70ohm/45MHz,82ohm/760MHz,0.01ohm 2703-001778 FT131 INDUCTOR-SMD 3.3uH,20%,3225 3301-001145 FT144 BEAD-SMD 60ohm,4516,6000mA,TP,70ohm/45MHz,82ohm/760MHz,0.01ohm BN27-00009A FT145 COIL CHOKE SMD12X12X6,EOS,33UH,15%,-,0.12ߟ MAX,2A,DR10X5.0MM,18.5TS,12X12X6,1.8MM,1UEW 0. 3301-001145 FT200 BEAD-SMD 60ohm,4516,6000mA,TP,70ohm/45MHz,82ohm/760MHz,0.01ohm 2901-001114 FT500 FILTER-EMI SMD 25VDC,2.0ADC,-,100nF,3.2x1.6x1 2901-001114 FT701 FILTER-EMI SMD 25VDC,2.0ADC,-,100nF,3.2x1.6x1 2901-001114 FT702 FILTER-EMI SMD 25VDC,2.0ADC,-,100nF,3.2x1.6x1 LW15M23C...
  • Page 32 R114 R-CHIP 10Kohm,5%,1/10W,TP,1608 2007-000939 R115 R-CHIP 47Kohm,1%,1/10W,TP,1608 2007-000102 R116 R-CHIP 100Kohm,5%,1/10W,TP,1608 2007-000102 R120 R-CHIP 100Kohm,5%,1/10W,TP,1608 2007-000102 R121 R-CHIP 100Kohm,5%,1/10W,TP,1608 2007-000074 R122 R-CHIP 100ohm,5%,1/10W,TP,1608 2007-000102 R127 R-CHIP 100Kohm,5%,1/10W,TP,1608 2007-000090 R128 R-CHIP 10Kohm,5%,1/10W,TP,1608 2007-000090 R165 R-CHIP 10Kohm,5%,1/10W,TP,1608 2007-000074 R166 R-CHIP 100ohm,5%,1/10W,TP,1608 LW15M23C...
  • Page 33 R713 R-CHIP 10Kohm,5%,1/10W,TP,1608 2007-000074 R714 R-CHIP 100ohm,5%,1/10W,TP,1608 2007-000074 R715 R-CHIP 100ohm,5%,1/10W,TP,1608 2007-000074 R716 R-CHIP 100ohm,5%,1/10W,TP,1608 2007-000074 R717 R-CHIP 100ohm,5%,1/10W,TP,1608 2007-000074 R718 R-CHIP 100ohm,5%,1/10W,TP,1608 2007-000074 R719 R-CHIP 100ohm,5%,1/10W,TP,1608 2007-000074 R720 R-CHIP 100ohm,5%,1/10W,TP,1608 2007-000078 R725 R-CHIP 1Kohm,5%,1/10W,TP,1608 2007-000074 R727 R-CHIP 100ohm,5%,1/10W,TP,1608 LW15M23C...
  • Page 34 R834 R-CHIP 200ohm,5%,1/10W,TP,1608 2007-000071 R835 R-CHIP 22ohm,5%,1/10W,TP,1608 2007-000402 R836 R-CHIP 150ohm,5%,1/10W,TP,1608 2007-000070 R837 R-CHIP 0ohm,5%,1/10W,TP,1608 2007-000113 R838 R-CHIP 33ohm,5%,1/10W,TP,1608 2007-000078 R839 R-CHIP 1Kohm,5%,1/10W,TP,1608 2007-000402 R840 R-CHIP 150ohm,5%,1/10W,TP,1608 2007-000070 R841 R-CHIP 0ohm,5%,1/10W,TP,1608 2007-000070 R842 R-CHIP 0ohm,5%,1/10W,TP,1608 2007-000113 R843 R-CHIP 33ohm,5%,1/10W,TP,1608 LW15M23C...
  • Page 35 R921 R-CHIP 100ohm,5%,1/10W,TP,1608 2007-000074 R923 R-CHIP 100ohm,5%,1/10W,TP,1608 2007-000084 R924 R-CHIP 4.7Kohm,5%,1/10W,TP,1608 2007-000402 R925 R-CHIP 150ohm,5%,1/10W,TP,1608 2007-000570 R926 R-CHIP 220OHM,1%,1/10W,DA,TP,1608 2007-000078 R927 R-CHIP 1Kohm,5%,1/10W,TP,1608 2007-000078 R928 R-CHIP 1Kohm,5%,1/10W,TP,1608 2007-000084 R929 R-CHIP 4.7Kohm,5%,1/10W,TP,1608 2007-000084 R930 R-CHIP 4.7Kohm,5%,1/10W,TP,1608 2007-000078 R931 R-CHIP 1Kohm,5%,1/10W,TP,1608 LW15M23C...
  • Page 36 ASSY STAND VE15UO BN96-01105A ASSY STAND P VE15UO,ABS HB 6003-000259 SCREW-TAPTITE BH,+,B,M3,L8,ZPC(YEL),SWRCH18A 6003-001185 SCREW-TAPTITE FH,+,B,M3,L8,NI PLT,SWRCH18A BN61-00811A STAND-COVER LT15M2,ABS HB BN61-00812A STAND-SUB COVER LT15M2,ABS HB BN61-00813A STAND-BRKT BOTTOM LT15M2,SECC,T1.0 BN73-60002A RUBBER-FOOT CY15PO,SPONGE,-,-,-,BL,-,-,-,- BN96-01162A ASSY MISC P-HINGE VE15UO,DIE CASTING T2.5 7-10 LW15M23C...
  • Page 37 XEU,ENG,MOJO100,L150,W392,-,- 6801-001015 ACCESSORY CARD-REGISTRATION XEG,GERMAN,MOJO100,L150,W392,-,- 6801-001016 ACCESSORY CARD-REGISTRATION XEF,FRENCH,MOJO100,L150,W392,-,- 6801-001017 ACCESSORY CARD-REGISTRATION XEC,SPANISH,MOJO100,L150,W392,-,- 6801-001018 ACCESSORY CARD-REGISTRATION XET,ITALY,MOJO100,L150,W392,-,- 6801-001019 ACCESSORY CARD-REGISTRATION XEN,DUTCH,MOJO100,L150,W392,-,- 6801-001020 ACCESSORY CARD-REGISTRATION XEP,PORTUGAL,MOJO100,L150,W392,-,- 6902-000110 ACCESSORY BAG PE LDPE,T0.05,L356,W240,TRP,28,2,PE MARK AA68-03242A ACCESSORY MANUAL-01,SAFETY GUIDE NT/PAL ALL MODEL,E/F/S/I/G/SC/ST/J/P,R,B5 LW15M23C 7-11...
  • Page 38 VE15EO BH68-00329D LABEL BAR CODE-01 NO CE,NO WT`Y,MPRII,LABEL-BARCODE,MOJO 90G,90,95,WHT BH75-10529A UNIT-HANDLE PACKING LXA410TLMU,PE,-,WHITE,- BN72-60001A LEVER-TOP LSD210TL,PE-LD,WHITE,TFT_LCD BN72-60002A LEVER-BOTTOM LSD210TL,PE-LD,WHITE,TFT-LCD BN69-00753D PACKING CASE-00 VE15E*,SW4 A,A1,YEL,EUROPE/CIS BN92-01044G ASSY LABEL VE15EO AA68-50502A LABEL LABEL-CONFORMATION W/P100(G),CTV,ITALY,170x110,BL BN68-00614A LABEL LABEL RATING-00 ALL,SS,PE,T0.05,90*45,BLK,POLYESTER,NO SILK 7-12 LW15M23C...
  • Page 39 IC803 Fo r VCTIF No n- Flash versio n M27W401 EPROM ADR[ 19;0] DATA[ 7;0] IC600 Main TUNER IF L/ R TDA7266D So und Am p AV CVBS IC802 So und Am p S- VHS Y,C Head p ho ne IC601 L/ R SCART CVBS,RGB...
  • Page 40 MP1410 _TUNER Ad justab le _VCTI IC108 _S3C9428 BA178M08 Po wer Fixed DC14V _VCTI IC109 600m A SI9993ADY MP1410 FT101 Pin 2 Ad justab le IC110 _SOUND AMP IC100 LM1085- 3. 3 _17, 20inc h Panel Fixed (o p tio n) 3.
  • Page 41 DIODE-SWITCHING 100.8 33.9 Q810 FET-SILICON 66.3 D949 DIODE-SWITCHING 97.6 38.7 Q811 FET-SILICON 66.3 D950 DIODE-ZENER 154.3 25.9 Q900 TR-SMALL SIGNAL 150.3 31.1 D951 DIODE-SWITCHING 87.9 Q901 TR-SMALL SIGNAL 146.3 31.1 D952 DIODE-SWITCHING 83.4 Q902 TR-SMALL SIGNAL 150.4 25.9 LW15M23C 10-1...
  • Page 42 10 PCB Layout Memo 10-2 LW15M23C...

  • Page 43: Wiring Diagram

    9 Wiring Diagram SW_Inverter LED-GRN LED-RED CN100 3.3V CN703 CN907 IDENT_HP HP-L HP-R KEY 1 KEY 2 PC_AR PC_AL CN909 PC_AL CN600 PC_AL PC_AR PC_AR CN908 CN900 U1913 CN903 CN902 CN601 LW15M23C...
  • Page 44 9 Schematic Diagrams Memo LW15M23C...

  • Page 45: Schematic Diagrams

    11 Schematic Diagrams 11 Schematic Diagrams ❈ This Document can not be used without Samsung’s authorization. 11-1 Input Power Sound Schematic Diagram B3.3V IC105 A1.8V A3.3V IC101 AP1117D-18A C111 IC111 AP1117D-33A 100uF AP1117D-33A IN 3 TP127 C163 100nF GND 1...
  • Page 46 11 Schematic Diagrams 11-2 LW15M23C...
  • Page 47 11 Schematic Diagrams ❈ This Document can not be used without Samsung’s authorization. 11-2 Video Decoder Schematic Diagram VSUP3.3DIG B3.3V MMBD4148SE FT108 C127 10uF SGM32F1E104-2A R835 R858 C117 2.7Kohm 100nF VSUP3.3DAC Q805 FT107 C124 C317 C316 2SC2412K-Q 10uF 470pF 1.5nF...
  • Page 48 11 Schematic Diagrams 11-4 LW15M23C...
  • Page 49 11 Schematic Diagrams ❈ This Document can not be used without Samsung’s authorization. 11-3 Output Scaler, LVDS Schematic Diagram A3.3V 3.3V_AVDD C723 C722 C721 C739 C738 C711 C724 C726 C725 C741 C740 C742 C749 C710 C748 C752 FT703 22uF 100nF...
  • Page 50 11 Schematic Diagrams ❈ This Document can not be used without Samsung’s authorization. 11-4 Power Supply, Inverter Board Schematic Diagram R809 3.9ohm 1/2W SVC561D-10A VX802S 11-6 LW15M23C...
  • Page 51 11 Schematic Diagrams ❈ This Document can not be used without Samsung’s authorization. 11-5 Power Supply, Inverter Board Schematic Diagram LW15M23C 11-7...
  • Page 52 11 Schematic Diagrams ❈ This Document can not be used without Samsung’s authorization. 11-6 IR Board Schematic Diagram KEY2 KEY1 HP_R HP_L IDENT_H/P R101 R102 R103 R104 R105 7.5K 3.3K 6.8K 4.7K 1.5K 3.3V_A LED_RED LED_GRN JACK1 SW101 SW102 SW103...