Samsung 941MW Service Manual
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Samsung 941MW Service Manual

Samsung 941MW Service Manual

Lcd-monitor
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See also: User Manual
DVORAK
SERVICE
TFT-LCD Monitor
941MW / 941MG
Refer to the service manual in the GSPN (see the rear cover) for the more information.
LCD-Monitor
Chassis
: LS19DOV
Model
: 941MW
941MG
Manual
1. Precautions
2. Product specifications
3. Disassembly and Reassemble
4. Troubleshooting
5. Exploded View & Part List
6. Wiring Diagram
7. Schematic Diagram
Contens

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Summary of Contents for Samsung 941MW

  • Page 1: Service Manual

    LCD-Monitor Chassis : LS19DOV DVORAK Model : 941MW 941MG SERVICE Manual TFT-LCD Monitor Contens 1. Precautions 2. Product specifications 3. Disassembly and Reassemble 4. Troubleshooting 5. Exploded View & Part List 6. Wiring Diagram 7. Schematic Diagram 941MW / 941MG Refer to the service manual in the GSPN (see the rear cover) for the more information.

  • Page 2: Table Of Contents

    Contents 1. Precautions ......................1-1 1-1. Safety Precautions ......................1-1 1-2. Servicing Precautions ..................... 1-2 1-3. Static Electricity Precautions ..................1-2 1-4. Installation Precautions ....................1-3 2. Product specifications .................... 2-1 2-1. Feature & Specifications ....................2-1 2-2. Spec Comparison to the Old Models ................2-2 2-3.
  • Page 3 GSPN (Global Service Partner Network) Area Web Site North America http://service.samsungportal.com Latin America http://latin.samsungportal.com http://cis.samsungportal.com Europe http://europe.samsungportal.com China http://china.samsungportal.com Asia http://asia.samsungportal.com Mideast & Africa http://mea.samsungportal.com © 2007 Samsung Electronics Co.,Ltd. This Service Manual is a property of Samsung Electronics Co.,Ltd. All rights reserved. Any unauthorized use of Manual can be punished under applicable Printed in Korea International and/or domestic law. P/N: BN82-00125E-00...

  • Page 4: Product Specifications

    2. Product specifications 2. Product specifications 2-1. Feature & Specifications Model LS19DOV Feature MFM Model � Applying HDCP/PIP � W/W model � High Contrast Ratio (1000:1) � High Luminance (300cd/m2) � Supporting Analog / Digital / Video / S-video / Component / SCART / TV �...

  • Page 5: Spec Comparison To The Old Models

    2. Product specifications 2-2. Spec Comparison to the Old Models Model DVORAK Refresh (941MW / 941MG) DVORAK (940MW) Design Area Europe World Wide Panel LTM190M2-L31 LTM190M2-L01 Fast Response Time Contrast 1000 : 1 700 : 1 Viewing Angle Scart Jack...

  • Page 6: Accessories

    Quick Setup Guide BN68-00952D Warranty Card BH68-00633A (Not available in all locations) User’s Guide, Monitor Driver, BN59-00566C Natural Color Pro s oftware D-Sub(15 Pin) Cable BN39-00244B Samsung Electronics Service center Power Cord 3903-000042 Remote Control BN39-00246F Batteries (AAA X 2) 4301-000121...

  • Page 7: Accessories (Sold Separately)

    2. Product specifications 2-4. Accessories (Sold separately) Product Description Ccde. No Remark S-VIDEO Cable RCA Cable (Video-Yellow, Audio-Red and White) Samsung Electronics Service center Component(P , Y) Cable DVI-D Cable BN39-00246F...

  • Page 8: Disassembly And Reassemble

    3. Disassembly and Reassemble 3. Disassembly and Reassemble This section of the service manual describes the disassembly and reassembly procedures for the LS19DOV LCD monitor. WARNING: This monitor contains electrostatically sensitive devices. Use caution when handling these components. 3-1. Disassembly Cautions: 1.
  • Page 9 3. Disassembly and Reassemble Description Picture Description Screws 5. Remove plastic molding and shield cover. 6. Remove 5 screws from main board and 4 screws from IP-Board. <Main Board> <IP Board> 6. Detach under the Main Board’s shield. 7. Detach the Main Board and the IP-Board. These are IP-Board and Main Board.

  • Page 10: Exploded View

    5. Exploded View & Part List 5. Exploded View & Part List 5-1. LS19DOVSS/EDC Exploded View...
  • Page 11 5. Exploded View & Part List 5-1-1. LS19DOVSS/EDC Parts List Location No. Code No. Description & Specification Q’ty SA/SNA Remark T0003 BN96-03793H ASSY COVER P-FRONT;LS19DOV(941MW),ABS HB M0215 BN07-00351A LCD-PANEL;LTM190M2-L31,Haydn,6bit Hi-FRC T0059 BN96-02505G ASSY SHIELD P-PANEL;LS19DOV(941MW),SECC, S.N.A M0017 BN91-00957N ASSY CHASSIS-STZ-W/W;LS19DOV*...
  • Page 12 5. Exploded View & Part List 5-2. LS19DOVSSK/EDC Exploded View...
  • Page 13 Code No. Description & Specification Q’ty SA/SNA Remark T0003 BN96-03793J ASSY COVER P-FRONT;LS19DOV(941MG),ABS HB M0215 BN07-00414A LCD-PANEL;LTM190M2-L31-9,Pebble,6bit Hi- T0059 BN96-02505G ASSY SHIELD P-PANEL;LS19DOV(941MW),SECC, S.N.A M0017 BN91-00957N ASSY CHASSIS-STZ-W/W;LS19DOV* M0174 BN44-00116C IP BOARD;IP-43130C,DVORAK 19”,3.2 ~4.5mA M0107 BN63-02132A SHIELD-COVER;DV19WS,SECC,T0.8 S.N.A M0013 BN96-02503A ASSY COVER P-REAR;LS19DOW,HIPS HB,BK24...
  • Page 14 Description & Specification Q’ty SA/SNA Remark LS19DOVSS/EDC 941MW,WGC1/S19AV-LDO,19,LCD-MO,NETHERLAN M0001 BN90-00803S ASSY COVER FRONT;LS19DOVSS/EDC,941MW,TCO S.N.A M0081 6003-000275 SCREW-TAPTITE;BH,+,-,B,M3,L10,ZPC(BLK),S S.N.A T0003 BN96-03793H ASSY COVER P-FRONT;LS19DOV(941MW),ABS HB ...3 M0081 6003-000275 SCREW-TAPTITE;BH,+,-,B,M3,L10,ZPC(BLK),S S.N.A ...3 M0081 6006-001096 SCREW-TAPTITE;BH,+,WP,B,M4.0,L12,ZPC(BLK S.N.A ...3 T0069 AA63-60001Q SPACER-FELT;-,FELT,-,-,-,BLK,T0.35,-,150 S.N.A ...3...
  • Page 15 5. Exploded View & Part List Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark ..4 D103 0401-001056 DIODE-SWITCHING;MMBD4148SE,100V,200mA,SO ..4 D116 0401-001056 DIODE-SWITCHING;MMBD4148SE,100V,200mA,SO ..4 D117 0401-001056 DIODE-SWITCHING;MMBD4148SE,100V,200mA,SO ..4 D118 0401-001056 DIODE-SWITCHING;MMBD4148SE,100V,200mA,SO ..4 D119 0401-001056 DIODE-SWITCHING;MMBD4148SE,100V,200mA,SO ..4 D120 0401-001056 DIODE-SWITCHING;MMBD4148SE,100V,200mA,SO ..4 D121...
  • Page 16 5. Exploded View & Part List Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark ..4 U409 0406-001163 DIODE-TVS;CDS3C05GTA,6.4V/-/-,-,SMD ..4 D110 0407-000123 DIODE-ARRAY;DAN202K,80V,100mA,CA2-3,SOT- ..4 D111 0407-000123 DIODE-ARRAY;DAN202K,80V,100mA,CA2-3,SOT- ..4 D305 0407-000123 DIODE-ARRAY;DAN202K,80V,100mA,CA2-3,SOT- ..4 Q103 0501-000280 TR-SMALL SIGNAL;KSA1182,PNP,150MW,SOT-23 ..4 Q101 0501-000342 TR-SMALL SIGNAL;KSC1623-Y,NPN,200mW,SOT- ..4...
  • Page 17 5. Exploded View & Part List Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark ..4 R107 2007-000070 R-CHIP;0ohm,5%,1/10W,TP,1608 ..4 R110 2007-000070 R-CHIP;0ohm,5%,1/10W,TP,1608 ..4 R160 2007-000070 R-CHIP;0ohm,5%,1/10W,TP,1608 ..4 R161 2007-000070 R-CHIP;0ohm,5%,1/10W,TP,1608 ..4 R221 2007-000070 R-CHIP;0ohm,5%,1/10W,TP,1608 ..4 R222 2007-000070 R-CHIP;0ohm,5%,1/10W,TP,1608 ..4 R223...
  • Page 18 5. Exploded View & Part List Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark ..4 R295 2007-000070 R-CHIP;0ohm,5%,1/10W,TP,1608 ..4 R297 2007-000070 R-CHIP;0ohm,5%,1/10W,TP,1608 ..4 R298 2007-000070 R-CHIP;0ohm,5%,1/10W,TP,1608 ..4 R299 2007-000070 R-CHIP;0ohm,5%,1/10W,TP,1608 ..4 R300 2007-000070 R-CHIP;0ohm,5%,1/10W,TP,1608 ..4 R301 2007-000070 R-CHIP;0ohm,5%,1/10W,TP,1608 ..4 R302...
  • Page 19 5. Exploded View & Part List Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark ..4 R346 2007-000072 R-CHIP;47ohm,5%,1/10W,TP,1608 ..4 R406 2007-000072 R-CHIP;47ohm,5%,1/10W,TP,1608 ..4 R407 2007-000072 R-CHIP;47ohm,5%,1/10W,TP,1608 ..4 R410 2007-000072 R-CHIP;47ohm,5%,1/10W,TP,1608 ..4 R425 2007-000072 R-CHIP;47ohm,5%,1/10W,TP,1608 ..4 R431 2007-000072 R-CHIP;47ohm,5%,1/10W,TP,1608 ..4 R504...
  • Page 20 5. Exploded View & Part List Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark ..4 R424 2007-000074 R-CHIP;100ohm,5%,1/10W,TP,1608 ..4 R426 2007-000074 R-CHIP;100ohm,5%,1/10W,TP,1608 ..4 R432 2007-000074 R-CHIP;100ohm,5%,1/10W,TP,1608 ..4 R436 2007-000074 R-CHIP;100ohm,5%,1/10W,TP,1608 ..4 R514 2007-000074 R-CHIP;100ohm,5%,1/10W,TP,1608 ..4 U414 2007-000074 R-CHIP;100ohm,5%,1/10W,TP,1608 ..4 U416...
  • Page 21 5. Exploded View & Part List Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark ..4 R320 2007-000084 R-CHIP;4.7Kohm,5%,1/10W,TP,1608 ..4 R321 2007-000084 R-CHIP;4.7Kohm,5%,1/10W,TP,1608 ..4 R352 2007-000084 R-CHIP;4.7Kohm,5%,1/10W,TP,1608 ..4 R414 2007-000084 R-CHIP;4.7Kohm,5%,1/10W,TP,1608 ..4 R3045 2007-000087 R-CHIP;6.8Kohm,5%,1/10W,TP,1608 ..4 R3050 2007-000087 R-CHIP;6.8Kohm,5%,1/10W,TP,1608 ..4 R328...
  • Page 22 5. Exploded View & Part List Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark ..4 R420 2007-000090 R-CHIP;10Kohm,5%,1/10W,TP,1608 ..4 R421 2007-000090 R-CHIP;10Kohm,5%,1/10W,TP,1608 ..4 R422 2007-000090 R-CHIP;10Kohm,5%,1/10W,TP,1608 ..4 R423 2007-000090 R-CHIP;10Kohm,5%,1/10W,TP,1608 ..4 R429 2007-000090 R-CHIP;10Kohm,5%,1/10W,TP,1608 ..4 R430 2007-000090 R-CHIP;10Kohm,5%,1/10W,TP,1608 ..4 R517...
  • Page 23 5. Exploded View & Part List Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark ..4 R434 2007-001167 R-CHIP;75ohm,5%,1/10W,TP,1608 ..4 R435 2007-001167 R-CHIP;75ohm,5%,1/10W,TP,1608 ..4 R510 2007-002906 R-CHIP;200Kohm,1%,1/10W,TP,1608 ..4 R324 2007-007004 R-CHIP;12Kohm,1%,1/10W,TP,1608 ..4 R513 2007-007352 R-CHIP;130Kohm,1%,1/10W,TP,1608 ..4 RA206 2011-000002 R-NET;22ohm,5%,1/16W,L,CHIP,8P,TP,3216 ..4 RA207...
  • Page 24 5. Exploded View & Part List Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark ..4 C317 2203-000236 C-CER,CHIP;0.1nF,5%,50V,C0G,1608 ..4 C343 2203-000236 C-CER,CHIP;0.1nF,5%,50V,C0G,1608 ..4 C353 2203-000236 C-CER,CHIP;0.1nF,5%,50V,C0G,1608 ..4 C516 2203-000236 C-CER,CHIP;0.1nF,5%,50V,C0G,1608 ..4 C517 2203-000236 C-CER,CHIP;0.1nF,5%,50V,C0G,1608 ..4 C215 2203-000257 C-CER,CHIP;10nF,10%,50V,X7R,1608 ..4 C307...
  • Page 25 5. Exploded View & Part List Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark ..4 C131 2203-000972 C-CER,CHIP;47nF,10%,16V,X7R,1608 ..4 C133 2203-000972 C-CER,CHIP;47nF,10%,16V,X7R,1608 ..4 C134 2203-000972 C-CER,CHIP;47nF,10%,16V,X7R,1608 ..4 C140 2203-000972 C-CER,CHIP;47nF,10%,16V,X7R,1608 ..4 C142 2203-000972 C-CER,CHIP;47nF,10%,16V,X7R,1608 ..4 C143 2203-000972 C-CER,CHIP;47nF,10%,16V,X7R,1608 ..4 C144...
  • Page 26 5. Exploded View & Part List Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark ..4 C248 2203-005005 C-CER,CHIP;100nF,10%,16V,X7R,1608 ..4 C250 2203-005005 C-CER,CHIP;100nF,10%,16V,X7R,1608 ..4 C251 2203-005005 C-CER,CHIP;100nF,10%,16V,X7R,1608 ..4 C262 2203-005005 C-CER,CHIP;100nF,10%,16V,X7R,1608 ..4 C315 2203-005005 C-CER,CHIP;100nF,10%,16V,X7R,1608 ..4 C325 2203-005005 C-CER,CHIP;100nF,10%,16V,X7R,1608 ..4 C338...
  • Page 27 5. Exploded View & Part List Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark ..4 C228 2203-005065 C-CER,CHIP;1000nF,+80-20%,10V,Y5V,1608 ..4 C229 2203-005065 C-CER,CHIP;1000nF,+80-20%,10V,Y5V,1608 ..4 C230 2203-005065 C-CER,CHIP;1000nF,+80-20%,10V,Y5V,1608 ..4 C231 2203-005065 C-CER,CHIP;1000nF,+80-20%,10V,Y5V,1608 ..4 C232 2203-005065 C-CER,CHIP;1000nF,+80-20%,10V,Y5V,1608 ..4 C233 2203-005065 C-CER,CHIP;1000nF,+80-20%,10V,Y5V,1608 ..4 C234...
  • Page 28 5. Exploded View & Part List Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark ..4 C361 2402-001178 C-AL,SMD;10uF,20%,16V,WT,TP,4.3x4.3x5.8m ..4 C366 2402-001178 C-AL,SMD;10uF,20%,16V,WT,TP,4.3x4.3x5.8m ..4 C130 2402-001183 C-AL,SMD;22UF,20%,16V,WT,TP,5.3X5.3X6MM ..4 C501 2402-001183 C-AL,SMD;22UF,20%,16V,WT,TP,5.3X5.3X6MM ..4 C514 2402-001183 C-AL,SMD;22UF,20%,16V,WT,TP,5.3X5.3X6MM ..4 C365 2402-001185 C-AL,SMD;2.2UF,20%,50V,WT,TP,4.3X4.3X6MM ..4 C331...
  • Page 29 BN44-00116C IP BOARD;IP-43130C,DVORAK 19”,3.2 ~4.5mA BN61-01997A HOLDER-JACK;DV19WS,ABS HB,T2.0 S.N.A M0107 BN63-02132A SHIELD-COVER;DV19WS,SECC,T0.8 S.N.A M0254 BN96-02854S ASSY MISC P-LVDS CABLE;Dvorak Refresh,FF T0059 BN96-02505G ASSY SHIELD P-PANEL;LS19DOV(941MW),SECC, S.N.A ...3 M0131 AA63-01216A GASKET;GSJ26KU,Conductive Fabric,1mm,30m S.N.A ...3 T0514 BN61-01998A BRACKET-SUPPORT;LS19DOW,SECC,T1.2 S.N.A ...3 M0125 BN63-02131D SHIELD-PANEL;LS19DOC,SECC,T0.8,AMLCD 5ms...
  • Page 30 BH68-70448A CARD-01;TFT LCD,SRC,RUSSIA,S/W,120,W210* S.N.A ...3 T0128 BN39-00061B CBF SIGNAL-STEREO;MH15NS,1P,UL2851#26,20 ...3 ACCESSORY BN68-00907A MANUAL FLYER-01,CARD;COMM,SAMSUNG,18 LAN S.N.A ...3 M0215 BN96-03964C ASSY MANUAL P-IB+QSG;941MW,941MG,SyncMas S.N.A ..4 BN59-00566C S/W DRIVER-01,IB;941MW,941MG,WW,SyncMast S.N.A ..4 BN68-00952D MANUAL FLYER-QSG;941MW,941MG,SyncMaster, S.N.A ...3 ACCESSORY BH68-00633B MANUAL FLYER-00,WARRANTY CARD;comm,Samsu S.N.A...
  • Page 31 5. Exploded View & Part List 5-4. LS19DOVSSK/EDC Parts List Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark LS19DOVSSK/EDC 941MG,WGC1/S19AV-LDO,19,LCD-MO,NETHERLAN M0001 BN90-00803T ASSY COVER FRONT;LS19DOVSSK/EDC,941MG,TC S.N.A M0081 6003-000275 SCREW-TAPTITE;BH,+,-,B,M3,L10,ZPC(BLK),S S.N.A T0003 BN96-03793J ASSY COVER P-FRONT;LS19DOV(941MG),ABS HB ...3 M0081 6003-000275 SCREW-TAPTITE;BH,+,-,B,M3,L10,ZPC(BLK),S...
  • Page 32 5. Exploded View & Part List Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark ..4 D116 0401-001056 DIODE-SWITCHING;MMBD4148SE,100V,200mA,SO ..4 D117 0401-001056 DIODE-SWITCHING;MMBD4148SE,100V,200mA,SO ..4 D118 0401-001056 DIODE-SWITCHING;MMBD4148SE,100V,200mA,SO ..4 D119 0401-001056 DIODE-SWITCHING;MMBD4148SE,100V,200mA,SO ..4 D120 0401-001056 DIODE-SWITCHING;MMBD4148SE,100V,200mA,SO ..4 D121 0401-001056 DIODE-SWITCHING;MMBD4148SE,100V,200mA,SO ..4 D122...
  • Page 33 5. Exploded View & Part List Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark ..4 D305 0407-000123 DIODE-ARRAY;DAN202K,80V,100mA,CA2-3,SOT- ..4 Q103 0501-000280 TR-SMALL SIGNAL;KSA1182,PNP,150MW,SOT-23 ..4 Q101 0501-000342 TR-SMALL SIGNAL;KSC1623-Y,NPN,200mW,SOT- ..4 Q102 0501-000342 TR-SMALL SIGNAL;KSC1623-Y,NPN,200mW,SOT- ..4 Q106 0501-000342 TR-SMALL SIGNAL;KSC1623-Y,NPN,200mW,SOT- ..4 Q107 0501-000342...
  • Page 34 5. Exploded View & Part List Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark ..4 R222 2007-000070 R-CHIP;0ohm,5%,1/10W,TP,1608 ..4 R223 2007-000070 R-CHIP;0ohm,5%,1/10W,TP,1608 ..4 R230 2007-000070 R-CHIP;0ohm,5%,1/10W,TP,1608 ..4 R231 2007-000070 R-CHIP;0ohm,5%,1/10W,TP,1608 ..4 R232 2007-000070 R-CHIP;0ohm,5%,1/10W,TP,1608 ..4 R234 2007-000070 R-CHIP;0ohm,5%,1/10W,TP,1608 ..4 R235...
  • Page 35 5. Exploded View & Part List Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark ..4 R303 2007-000070 R-CHIP;0ohm,5%,1/10W,TP,1608 ..4 R3036 2007-000070 R-CHIP;0ohm,5%,1/10W,TP,1608 ..4 R3038 2007-000070 R-CHIP;0ohm,5%,1/10W,TP,1608 ..4 R304 2007-000070 R-CHIP;0ohm,5%,1/10W,TP,1608 ..4 R306 2007-000070 R-CHIP;0ohm,5%,1/10W,TP,1608 ..4 R307 2007-000070 R-CHIP;0ohm,5%,1/10W,TP,1608 ..4 R308...
  • Page 36 5. Exploded View & Part List Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark ..4 R509 2007-000072 R-CHIP;47ohm,5%,1/10W,TP,1608 ..4 R511 2007-000072 R-CHIP;47ohm,5%,1/10W,TP,1608 ..4 R515 2007-000072 R-CHIP;47ohm,5%,1/10W,TP,1608 ..4 R108 2007-000074 R-CHIP;100ohm,5%,1/10W,TP,1608 ..4 R117 2007-000074 R-CHIP;100ohm,5%,1/10W,TP,1608 ..4 R123 2007-000074 R-CHIP;100ohm,5%,1/10W,TP,1608 ..4 R124...
  • Page 37 5. Exploded View & Part List Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark ..4 R427 2007-000077 R-CHIP;470ohm,5%,1/10W,TP,1608 ..4 R105 2007-000078 R-CHIP;1Kohm,5%,1/10W,TP,1608 ..4 R120 2007-000078 R-CHIP;1Kohm,5%,1/10W,TP,1608 ..4 R121 2007-000078 R-CHIP;1Kohm,5%,1/10W,TP,1608 ..4 R254 2007-000078 R-CHIP;1Kohm,5%,1/10W,TP,1608 ..4 R259 2007-000078 R-CHIP;1Kohm,5%,1/10W,TP,1608 ..4 R292...
  • Page 38 5. Exploded View & Part List Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark ..4 R137 2007-000090 R-CHIP;10Kohm,5%,1/10W,TP,1608 ..4 R138 2007-000090 R-CHIP;10Kohm,5%,1/10W,TP,1608 ..4 R139 2007-000090 R-CHIP;10Kohm,5%,1/10W,TP,1608 ..4 R150 2007-000090 R-CHIP;10Kohm,5%,1/10W,TP,1608 ..4 R168 2007-000090 R-CHIP;10Kohm,5%,1/10W,TP,1608 ..4 R170 2007-000090 R-CHIP;10Kohm,5%,1/10W,TP,1608 ..4 R172...
  • Page 39 5. Exploded View & Part List Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark ..4 R3049 2007-000102 R-CHIP;100Kohm,5%,1/10W,TP,1608 ..4 R355 2007-000102 R-CHIP;100Kohm,5%,1/10W,TP,1608 ..4 R503 2007-000102 R-CHIP;100Kohm,5%,1/10W,TP,1608 ..4 R3055 2007-000103 R-CHIP;120Kohm,5%,1/10W,TP,1608 ..4 R507 2007-000106 R-CHIP;220Kohm,5%,1/10W,TP,1608 ..4 R218 2007-000124 R-CHIP;2.2Kohm,5%,1/10W,TP,1608 ..4 R516...
  • Page 40 5. Exploded View & Part List Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark ..4 C116 2203-000140 C-CER,CHIP;1.5nF,10%,50V,X7R,1608 ..4 C117 2203-000140 C-CER,CHIP;1.5nF,10%,50V,X7R,1608 ..4 C128 2203-000140 C-CER,CHIP;1.5nF,10%,50V,X7R,1608 ..4 C129 2203-000140 C-CER,CHIP;1.5nF,10%,50V,X7R,1608 ..4 C371 2203-000140 C-CER,CHIP;1.5nF,10%,50V,X7R,1608 ..4 C372 2203-000140 C-CER,CHIP;1.5nF,10%,50V,X7R,1608 ..4 C405...
  • Page 41 5. Exploded View & Part List Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark ..4 C149 2203-000440 C-CER,CHIP;1nF,10%,50V,X7R,1608 ..4 C150 2203-000440 C-CER,CHIP;1nF,10%,50V,X7R,1608 ..4 C151 2203-000440 C-CER,CHIP;1nF,10%,50V,X7R,1608 ..4 C214 2203-000440 C-CER,CHIP;1nF,10%,50V,X7R,1608 ..4 C247 2203-000440 C-CER,CHIP;1nF,10%,50V,X7R,1608 ..4 C249 2203-000440 C-CER,CHIP;1nF,10%,50V,X7R,1608 ..4 C358...
  • Page 42 5. Exploded View & Part List Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark ..4 C329 2203-000975 C-CER,CHIP;47nF,10%,25V,X7R,TP,1608,- ..4 C407 2203-000975 C-CER,CHIP;47nF,10%,25V,X7R,TP,1608,- ..4 C409 2203-000975 C-CER,CHIP;47nF,10%,25V,X7R,TP,1608,- ..4 C411 2203-000975 C-CER,CHIP;47nF,10%,25V,X7R,TP,1608,- ..4 C135 2203-000998 C-CER,CHIP;0.047nF,5%,50V,C0G,1608 ..4 C136 2203-000998 C-CER,CHIP;0.047nF,5%,50V,C0G,1608 ..4 C137...
  • Page 43 5. Exploded View & Part List Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark ..4 C401 2203-005005 C-CER,CHIP;100nF,10%,16V,X7R,1608 ..4 C504 2203-005005 C-CER,CHIP;100nF,10%,16V,X7R,1608 ..4 C509 2203-005005 C-CER,CHIP;100nF,10%,16V,X7R,1608 ..4 C524 2203-005005 C-CER,CHIP;100nF,10%,16V,X7R,1608 ..4 C826 2203-005005 C-CER,CHIP;100nF,10%,16V,X7R,1608 ..4 C827 2203-005005 C-CER,CHIP;100nF,10%,16V,X7R,1608 ..4 C108...
  • Page 44 5. Exploded View & Part List Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark ..4 C355 2203-005437 C-CER,CHIP;10000nF,+80-20%,10V,Y5V,3216 ..4 C832 2203-005437 C-CER,CHIP;10000nF,+80-20%,10V,Y5V,3216 ..4 C833 2203-005437 C-CER,CHIP;10000nF,+80-20%,10V,Y5V,3216 ..4 C212 2203-006333 C-CER,CHIP;10000nF,20%,16V,X5R,TP,3216 ..4 C828 2402-000108 C-AL,SMD;10uF,20%,16V,WT,TP,4.3x4.3x5.2m ..4 C316 2402-001081 C-AL,SMD;100uF,20%,25V,WT,TP,8.3x8.3x10 ..4 C347...
  • Page 45 5. Exploded View & Part List Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark ..4 T0052 2703-000398 INDUCTOR-SMD;10uH,10%,3225 ..4 T0052 2703-000417 INDUCTOR-SMD;220uH,5%,3225 ..4 T0052 2703-001334 INDUCTOR-SMD;1.5uH,10%,2012 ..4 T0052 2703-001426 INDUCTOR-SMD;680uH,20%,7070 ..4 T0052 2703-001778 INDUCTOR-SMD;3.3uH,20%,3225 ..4 T0052 2703-001778 INDUCTOR-SMD;3.3uH,20%,3225 ..4 T0052...
  • Page 46 BN44-00116C IP BOARD;IP-43130C,DVORAK 19”,3.2 ~4.5mA BN61-01997A HOLDER-JACK;DV19WS,ABS HB,T2.0 S.N.A M0107 BN63-02132A SHIELD-COVER;DV19WS,SECC,T0.8 S.N.A M0254 BN96-02854S ASSY MISC P-LVDS CABLE;Dvorak Refresh,FF T0059 BN96-02505G ASSY SHIELD P-PANEL;LS19DOV(941MW),SECC, S.N.A ...3 M0131 AA63-01216A GASKET;GSJ26KU,Conductive Fabric,1mm,30m S.N.A ...3 T0514 BN61-01998A BRACKET-SUPPORT;LS19DOW,SECC,T1.2 S.N.A ...3 M0125 BN63-02131D SHIELD-PANEL;LS19DOC,SECC,T0.8,AMLCD 5ms...
  • Page 47 BH68-70448A CARD-01;TFT LCD,SRC,RUSSIA,S/W,120,W210* S.N.A ...3 T0128 BN39-00061B CBF SIGNAL-STEREO;MH15NS,1P,UL2851#26,20 ...3 ACCESSORY BN68-00907A MANUAL FLYER-01,CARD;COMM,SAMSUNG,18 LAN S.N.A ...3 M0215 BN96-03964C ASSY MANUAL P-IB+QSG;941MW,941MG,SyncMas S.N.A ..4 BN59-00566C S/W DRIVER-01,IB;941MW,941MG,WW,SyncMast S.N.A ..4 BN68-00952D MANUAL FLYER-QSG;941MW,941MG,SyncMaster, S.N.A ...3 ACCESSORY BH68-00633B MANUAL FLYER-00,WARRANTY CARD;comm,Samsu S.N.A...

  • Page 48: Wiring Diagram

    6. Wiring Diagram 6. Wiring Diagram 6-1. Wiring Diagram...

  • Page 49: Connector Functions

    6. Wiring Diagram 6-2. Connector Functions Connector Functions CN101 HDCP program download terminal. CN102 Function Key terminal. VGA signal input terminal. CN103 * Possible problems: The No VGA Output error may occur. DVI signal input terminal. CN104 * Possible problems: The No DVI Output error may occur. PC sound input terminal.

  • Page 50: Circuit Descriptions

    7. Schematic Diagram 7. Schematic Diagram 7-1. Circuit Descriptions Feature Description This IC scales the RGB, DVI, VIDEO signals received from their respective input terminals so that they can be output, transforms them to LVDS signals, and Scaler supplies the LVDS signals to the panel. Scaler Integrate ADC and TMDS, Scaling part, Micom fuction.

  • Page 51: Schematic Diagrams

    7. Schematic Diagram 7-2. Schematic Diagrams 7-2-1. Scaler (IC204) Block...
  • Page 52 7. Schematic Diagram 7-2-2. DDR Memory (IC205) Block, LVDS connector (CN201)
  • Page 53 7. Schematic Diagram...
  • Page 54 7. Schematic Diagram 7-2-4. Function Input (CN102) Block 7-2-5. 13.5V Power Input (CN702) Block...
  • Page 55 7. Schematic Diagram 7-2-6. 13.5V to 5V Conversion (IC305), 5V to 3.3V Conversion (IC304, IC306) 7-2-7. 5V to 1.8V Conversion (IC307)
  • Page 56 7. Schematic Diagram 7-2-8. S-VIDEO Input (CN401) 7-2-9. AV Input (CN403)
  • Page 57 7. Schematic Diagram 7-2-10. Component Input (CN404) and Sound Left-Right Input(CN402, U403) 7-2-11. Tuner(TV) Input (TU501)
  • Page 58 7. Schematic Diagram 7-2-12. PC Sound Input...
  • Page 59 7. Schematic Diagram Memo 7-10...

  • Page 60: Safety Precautions

    1. Precautions 1. Precautions 1-1. Safety Precautions Follow these safety, servicing and ESD precautions to prevent damage and to protect against potential hazards such as electrical shock. 1-1-1. Warnings For continued safety, do not attempt to modify the circuit board. Disconnect the AC power and DC power jack before servicing.

  • Page 61: Servicing Precautions

    1. Precautions 1-2. Servicing Precautions WARNING: An electrolytic capacitor installed with the wrong polarity might explode. Caution: Before servicing units covered by this service manual, read and follow the Safety Precautions section of this manual. Note: If unforeseen circumstances create conflict between the following servicing precautions and any of the safety precautions, always follow the safety precautions.

  • Page 62: Installation Precautions

    1. Precautions 1-4. Installation Precautions For safety reasons, more than two people are required for carrying the product. Keep the power cord away from any heat emitting devices, as a melted covering may cause fire or electric shock. Do not place the product in areas with poor ventilation such as a bookshelf or closet. The increased internal temperature may cause fire.
  • Page 63 1. Precautions Memo...

  • Page 64: Schematic Diagram

    7. Schematic Diagram 7. Schematic Diagram 7-1. Circuit Descriptions Feature Description This IC scales the RGB, DVI, VIDEO signals received from their respective input terminals so that they can be output, transforms them to LVDS signals, and Scaler supplies the LVDS signals to the panel. Scaler Integrate ADC and TMDS, Scaling part, Micom fuction.
  • Page 65 7. Schematic Diagram 7-2. Schematic Diagrams 7-2-1. Scaler (IC204) Block...
  • Page 66 7. Schematic Diagram 7-2-2. DDR Memory (IC205) Block, LVDS connector (CN201)
  • Page 67 7. Schematic Diagram...
  • Page 68 7. Schematic Diagram 7-2-4. Function Input (CN102) Block 7-2-5. 13.5V Power Input (CN702) Block...
  • Page 69 7. Schematic Diagram 7-2-6. 13.5V to 5V Conversion (IC305), 5V to 3.3V Conversion (IC304, IC306) 7-2-7. 5V to 1.8V Conversion (IC307)
  • Page 70 7. Schematic Diagram 7-2-8. S-VIDEO Input (CN401) 7-2-9. AV Input (CN403)
  • Page 71 7. Schematic Diagram 7-2-10. Component Input (CN404) and Sound Left-Right Input(CN402, U403) 7-2-11. Tuner(TV) Input (TU501)
  • Page 72 7. Schematic Diagram 7-2-12. PC Sound Input...
  • Page 73 7. Schematic Diagram Memo 7-10...

  • Page 74: Exploded View

    5 Exploded View & Parts List 5 Exploded View and Parts List -You can search for updated part codes through ITSELF web site. URL : http://itself. sec. samsung.co.kr 5-1 Exploded View M0013 M0107 M0174 M0017 T0059 M0215 T0003 M0027...

  • Page 75: Parts List

    5-2 Parts List Location.No CODE-NO SPECIFICATION & DESCRIPTION Q'TY REMARK T0003 BN96-03793J ASSY COVER P-FRONT;LS19DOV(941MG),,,,ABS M0215 BN07-00414A LCD-PANEL;LTM190M2-L31-9,Pebble,6bit Hi- T0059 BN96-02505G ASSY SHIELD P-PANEL;LS19DOV(941MW),SECC, S.N.A M0017 BN91-00957N ASSY CHASSIS-STZ-W/W;LS19DOV* M0174 BN44-00116C IP BOARD;IP-43130C,DVORAK 19",3.2 ~4.5mA M0107 BN63-02132A SHIELD-COVER;DV19WS,SECC,T0.8 S.N.A M0013 BN96-02503A ASSY COVER P-REAR;LS19DOW,,HIPS HB,,BK24...

  • Page 76: Electrical Parts List

    6 Electrical Parts List 6 Electrical Parts List You can search for updated part codes through ITSELF web site. URL : http://itself.sec.samsung.co.kr/ 6-1 LS19DOVSSK/EDC Parts List Level Loc. No. Code No. Description & Specification Q'ty SA/SNA LS19DOVSSK/EDC 941MG,WGC1/S19AV-LDO,19,LCD-MO,NETHERLAN LS19DOVSSK/EDC 941MG,WGC1/S19AV-LDO,19,LCD-MO,NETHERLAN...
  • Page 77 6 Electrical Parts List Level Loc. No. Code No. Description & Specification Q'ty SA/SNA ..4 D119 0401-001056 DIODE-SWITCHING;MMBD4148SE,100V,200mA,SO ..4 D120 0401-001056 DIODE-SWITCHING;MMBD4148SE,100V,200mA,SO ..4 D121 0401-001056 DIODE-SWITCHING;MMBD4148SE,100V,200mA,SO ..4 D122 0401-001056 DIODE-SWITCHING;MMBD4148SE,100V,200mA,SO ..4 D123 0401-001056 DIODE-SWITCHING;MMBD4148SE,100V,200mA,SO ..4 D302 0401-001056 DIODE-SWITCHING;MMBD4148SE,100V,200mA,SO ..4 D501 0401-001056 DIODE-SWITCHING;MMBD4148SE,100V,200mA,SO ..4...
  • Page 78 6 Electrical Parts List Level Loc. No. Code No. Description & Specification Q'ty SA/SNA ..4 Q303 0501-002080 TR-SMALL SIGNAL;2SC2412K,NPN,200mW,SC-59 ..4 Q307 0501-002080 TR-SMALL SIGNAL;2SC2412K,NPN,200mW,SC-59 ..4 Q308 0501-002080 TR-SMALL SIGNAL;2SC2412K,NPN,200mW,SC-59 ..4 Q401 0501-002080 TR-SMALL SIGNAL;2SC2412K,NPN,200mW,SC-59 ..4 Q801 0501-002080 TR-SMALL SIGNAL;2SC2412K,NPN,200mW,SC-59 ..4 Q802 0501-002080 TR-SMALL SIGNAL;2SC2412K,NPN,200mW,SC-59...
  • Page 79 6 Electrical Parts List Level Loc. No. Code No. Description & Specification Q'ty SA/SNA ..4 R110 2007-000070 R-CHIP;0ohm,5%,1/10W,TP,1608 ..4 R110 2007-000070 R-CHIP;0ohm,5%,1/10W,TP,1608 ..4 R110 2007-000070 R-CHIP;0ohm,5%,1/10W,TP,1608 ..4 R110 2007-000070 R-CHIP;0ohm,5%,1/10W,TP,1608 ..4 R110 2007-000070 R-CHIP;0ohm,5%,1/10W,TP,1608 ..4 R110 2007-000070 R-CHIP;0ohm,5%,1/10W,TP,1608 ..4 R110 2007-000070 R-CHIP;0ohm,5%,1/10W,TP,1608 ..4...
  • Page 80 6 Electrical Parts List Level Loc. No. Code No. Description & Specification Q'ty SA/SNA ..4 R110 2007-000071 R-CHIP;22ohm,5%,1/10W,TP,1608 ..4 R110 2007-000071 R-CHIP;22ohm,5%,1/10W,TP,1608 ..4 R110 2007-000071 R-CHIP;22ohm,5%,1/10W,TP,1608 ..4 R110 2007-000071 R-CHIP;22ohm,5%,1/10W,TP,1608 ..4 R110 2007-000072 R-CHIP;47ohm,5%,1/10W,TP,1608 ..4 R110 2007-000072 R-CHIP;47ohm,5%,1/10W,TP,1608 ..4 R110 2007-000072 R-CHIP;47ohm,5%,1/10W,TP,1608 ..4...
  • Page 81 6 Electrical Parts List Level Loc. No. Code No. Description & Specification Q'ty SA/SNA ..4 R110 2007-000074 R-CHIP;100ohm,5%,1/10W,TP,1608 ..4 R110 2007-000074 R-CHIP;100ohm,5%,1/10W,TP,1608 ..4 R110 2007-000074 R-CHIP;100ohm,5%,1/10W,TP,1608 ..4 R110 2007-000074 R-CHIP;100ohm,5%,1/10W,TP,1608 ..4 R110 2007-000074 R-CHIP;100ohm,5%,1/10W,TP,1608 ..4 R110 2007-000074 R-CHIP;100ohm,5%,1/10W,TP,1608 ..4 R110 2007-000074 R-CHIP;100ohm,5%,1/10W,TP,1608 ..4...
  • Page 82 6 Electrical Parts List Level Loc. No. Code No. Description & Specification Q'ty SA/SNA ..4 R110 2007-000090 R-CHIP;10Kohm,5%,1/10W,TP,1608 ..4 R110 2007-000090 R-CHIP;10Kohm,5%,1/10W,TP,1608 ..4 R110 2007-000090 R-CHIP;10Kohm,5%,1/10W,TP,1608 ..4 R110 2007-000090 R-CHIP;10Kohm,5%,1/10W,TP,1608 ..4 R110 2007-000090 R-CHIP;10Kohm,5%,1/10W,TP,1608 ..4 R110 2007-000090 R-CHIP;10Kohm,5%,1/10W,TP,1608 ..4 R110 2007-000090 R-CHIP;10Kohm,5%,1/10W,TP,1608 ..4...
  • Page 83 6 Electrical Parts List Level Loc. No. Code No. Description & Specification Q'ty SA/SNA ..4 R110 2007-000124 R-CHIP;2.2Kohm,5%,1/10W,TP,1608 ..4 R110 2007-000458 R-CHIP;18Kohm,5%,1/10W,TP,1608 ..4 R110 2007-000643 R-CHIP;270ohm,5%,1/10W,TP,1608 ..4 R110 2007-000643 R-CHIP;270ohm,5%,1/10W,TP,1608 ..4 R110 2007-000708 R-CHIP;3.9Kohm,1%,1/10W,TP,1608 ..4 R110 2007-000821 R-CHIP;390ohm,1%,1/10W,TP,1608 ..4 R110 2007-000913 R-CHIP;43Kohm,5%,1/10W,TP,1608 ..4...
  • Page 84 6 Electrical Parts List Level Loc. No. Code No. Description & Specification Q'ty SA/SNA ..4 C120 2203-000189 C-CER,CHIP;100nF,+80-20%,25V,Y5V,1608 ..4 C120 2203-000189 C-CER,CHIP;100nF,+80-20%,25V,Y5V,1608 ..4 C120 2203-000189 C-CER,CHIP;100nF,+80-20%,25V,Y5V,1608 ..4 C120 2203-000189 C-CER,CHIP;100nF,+80-20%,25V,Y5V,1608 ..4 C120 2203-000189 C-CER,CHIP;100nF,+80-20%,25V,Y5V,1608 ..4 C120 2203-000189 C-CER,CHIP;100nF,+80-20%,25V,Y5V,1608 ..4 C120 2203-000189 C-CER,CHIP;100nF,+80-20%,25V,Y5V,1608 ..4...
  • Page 85 6 Electrical Parts List Level Loc. No. Code No. Description & Specification Q'ty SA/SNA ..4 C120 2203-000972 C-CER,CHIP;47nF,10%,16V,X7R,1608 ..4 C120 2203-000972 C-CER,CHIP;47nF,10%,16V,X7R,1608 ..4 C120 2203-000972 C-CER,CHIP;47nF,10%,16V,X7R,1608 ..4 C120 2203-000972 C-CER,CHIP;47nF,10%,16V,X7R,1608 ..4 C120 2203-000972 C-CER,CHIP;47nF,10%,16V,X7R,1608 ..4 C120 2203-000972 C-CER,CHIP;47nF,10%,16V,X7R,1608 ..4 C120 2203-000972 C-CER,CHIP;47nF,10%,16V,X7R,1608 ..4...
  • Page 86 6 Electrical Parts List Level Loc. No. Code No. Description & Specification Q'ty SA/SNA ..4 C120 2203-005005 C-CER,CHIP;100nF,10%,16V,X7R,1608 ..4 C120 2203-005005 C-CER,CHIP;100nF,10%,16V,X7R,1608 ..4 C120 2203-005005 C-CER,CHIP;100nF,10%,16V,X7R,1608 ..4 C120 2203-005005 C-CER,CHIP;100nF,10%,16V,X7R,1608 ..4 C120 2203-005005 C-CER,CHIP;100nF,10%,16V,X7R,1608 ..4 C120 2203-005005 C-CER,CHIP;100nF,10%,16V,X7R,1608 ..4 C120 2203-005005 C-CER,CHIP;100nF,10%,16V,X7R,1608 ..4...
  • Page 87 6 Electrical Parts List Level Loc. No. Code No. Description & Specification Q'ty SA/SNA ..4 C120 2203-005065 C-CER,CHIP;1000nF,+80-20%,10V,Y5V,1608 ..4 C120 2203-005065 C-CER,CHIP;1000nF,+80-20%,10V,Y5V,1608 ..4 C120 2203-005065 C-CER,CHIP;1000nF,+80-20%,10V,Y5V,1608 ..4 C120 2203-005261 C-CER,CHIP;1000nF,10%,25V,X7R,3216 ..4 C120 2203-005261 C-CER,CHIP;1000nF,10%,25V,X7R,3216 ..4 C120 2203-005437 C-CER,CHIP;10000nF,+80-20%,10V,Y5V,3216 ..4 C120 2203-005437 C-CER,CHIP;10000nF,+80-20%,10V,Y5V,3216 ..4...
  • Page 88 6 Electrical Parts List Level Loc. No. Code No. Description & Specification Q'ty SA/SNA ..4 T0052 2703-000398 INDUCTOR-SMD;10uH,10%,3225 ..4 T0052 2703-000417 INDUCTOR-SMD;220uH,5%,3225 ..4 T0052 2703-001334 INDUCTOR-SMD;1.5uH,10%,2012 ..4 T0052 2703-001426 INDUCTOR-SMD;680uH,20%,7070 ..4 T0052 2703-001778 INDUCTOR-SMD;3.3uH,20%,3225 ..4 T0052 2703-001778 INDUCTOR-SMD;3.3uH,20%,3225 ..4 T0052 2703-001778 INDUCTOR-SMD;3.3uH,20%,3225 ..4...
  • Page 89 BN44-00116C IP BOARD;IP-43130C,DVORAK 19",3.2 ~4.5mA BN61-01997A HOLDER-JACK;DV19WS,ABS HB,T2.0 S.N.A M0107 BN63-02132A SHIELD-COVER;DV19WS,SECC,T0.8 S.N.A M0251 BN96-02854S ASSY CABLE P;Dvorak Refresh, UL21341,FFC T0059 BN96-02505G ASSY SHIELD P-PANEL;LS19DOV(941MW),SECC, S.N.A ...3 M0131 AA63-01216A GASKET;GSJ26KU,Conductive Fabric,1mm,30m S.N.A ...3 T0514 BN61-01998A BRACKET-SUPPORT;LS19DOW,SECC,T1.2 S.N.A ...3 M0125 BN63-02131D SHIELD-PANEL;LS19DOC,SECC,T0.8,AMLCD 5ms...

  • Page 90: Troubleshooting

    4. Troubleshooting 4. Troubleshooting 4-1. Troubleshooting Before troubleshooting, setup the PC ‘s display as below. • Resolution: 1440 × 900 • H-frequency: 64 kHz • V-frequency: 60 Hz If no picture appears, make sure the power cord is correctly connected. Check the following circuits.

  • Page 91: No Power

    4. Troubleshooting 4-2. No Power When turning on the Power button after connecting the power, the LED at the front of the Symptom monitor does not operate. Check whether the Power Switch at the back of the monitor is turned on. Check the IP board power fuse and the IP board output power.
  • Page 92 4. Troubleshooting 4-2-1. Circuit diagrams and waveforms when the power does not turn on...

  • Page 93: No Video (Analog)

    4. Troubleshooting 4-3. No Video (Analog) Symptom Though the LED power turns on, the screen is blank when connecting the VGA cable. Check the D-sub cable connections. Major Check whether the LVDS cable is connected correctly to the panel. checkpoints Check whether the lamp connector of the panel is connected correctly to the IP board.
  • Page 94 4. Troubleshooting 4-3-1. Circuit diagrams and waveforms (Analog) when no screen is displayed on the monitor...
  • Page 95 4. Troubleshooting WAVEFORMS...

  • Page 96: No Video (Dvi)

    4. Troubleshooting 4-4. No Video (DVI) Symptom The LED power turns on but the screen is blank when the DVI cable is connected. Check the DVI cable connections. Major Check whether the LVDS cable is connected correctly to the panel. checkpoints Check whether the lamp connector of the panel is connected correctly to the IP board.
  • Page 97 4. Troubleshooting 4-4-1. Circuit diagrams and waveforms (DVI) when no screen is displayed on the monitor WAVEFORMS...

  • Page 98: No Sound

    4. Troubleshooting 4-5. No Sound Symptom Though the LED power turns on, the screen is blank when connecting the VGA cable. Check the cable connections. Major Check whether the LVDS cable is connected correctly to the panel. checkpoints Check whether the lamp connector of the panel is connected correctly to the IP board. Main Board Does a signal appear at Check CN801 and related...

  • Page 99: Faults And Corrective Actions

    4. Troubleshooting 4-6. Faults and Corrective Actions Fault Photo Symptoms and Corrective Actions Remarks Symptoms: DVI signals are not recognized. * Refer to the Training Manual for information on inputting the DVI DDC. Causes: This fault occurs when the PC does not recognize the mode information because the DVI DDC has not been input to the monitor.

  • Page 100: Adjustment

    4. Troubleshooting 4-7. Adjustment 4-7-1. Service Adjustment Conditions Precautions before starting Service Adjustments 1) Check whether the adjustment devices are working correctly. 2) Ensure a sufficient work space for disassembling the monitor. 3) Prepare a soft support for disassembling the monitor. Entering Service Mode Entering: Menu...
  • Page 101 4. Troubleshooting 2) Downloading the decoder firmware Run the Afterservice Jig Program. Select “Mstar.mdl” in the “Reload” window. Select “Etc.” Click “DL120 reset”. Click “EEPROM”. Click “Load” in the displayed window and select the latest version of the decoder firmware. Click “Write”...
  • Page 102 4. Troubleshooting 3) Downloading the memory controller firmware Run the Afterservice Jig Program. Select “Mstar.mdl” in the “Reload” window. Select “Etc.” Click “DL120 reset”. Click “EEPROM”. Click “Load” in the displayed window and select the latest version of the memory controller IC firmware. Click “Write”...
  • Page 103 4. Troubleshooting 4) Downloading the install driver file (Flash ROM) Run the USB ONENAND CD Manager. Click “…” and select the latest version of the driver file. Click “OneNand Write Start” to begin the download. 4-14...
  • Page 104 A. Preparations: Connect a DDC Manager (for example, MTI-2059) to the PC, connect the DDC manager and the RGB monitor connector using a D-sub cable, and turn on the monitor. B. Run Samsung Monitor A/S Jig 3.4 version C. Select Mstar.mdl in the MDL window, select the Etc tab, click “DL120 reset”, and click on EEPROM.
  • Page 105 4. Troubleshooting D. When clicking the EEPROM button, a new window is displayed, as shown in the figure below. Click Load in the displayed window. E. Select one of the files named ‘ubisync-0101-****’ in the folder where the firmware is saved. F.
  • Page 106 4. Troubleshooting 6) Downloading the firmware for driving the memory controller (IC503, SUSB2010) (Downloaded to IC504) A.Preparations: Connect a DDC Manager (for example, MTI-2059) to the PC, connect the DDC manager and the RGB monitor connector using a D-sub cable, and turn on the monitor. B.
  • Page 107 4. Troubleshooting Memo 4-18...

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