Samsung 192T Service Manual
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Samsung 192T Service Manual

Samsung 192T Service Manual

Tft-lcd monitor
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SERVICE
TFT-LCD MONITOR
TFT-LCD MONITOR
Chassis
Model
MO19P*
192T
MO19E*
192B
Manual
CONTENTS
1. Precautions
2. Product Specifications
3. Disassembly & Reassembly
4. Troubleshooting
5. Exploded View & Parts List
6. Electrical Parts List
7. Block Diagram
8. Wiring Diagram
9. PCB Layout
10. Schematic Diagrams
11. Panel Description

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Summary of Contents for Samsung 192T

  • Page 1: Service Manual

    TFT-LCD MONITOR Chassis Model MO19P* 192T MO19E* 192B SERVICE Manual TFT-LCD MONITOR CONTENTS 1. Precautions 2. Product Specifications 3. Disassembly & Reassembly 4. Troubleshooting 5. Exploded View & Parts List 6. Electrical Parts List 7. Block Diagram 8. Wiring Diagram 9.

  • Page 2: Precautions

    1 Precautions Follow these safety, servicing and ESD precautions to prevent damage and to protect against potential hazards such as electrical shock. 1-1 Safety Precautions 1-1-1 Warnings For continued safety, do not attempt to modify the (READING SHOULD circuit board. NOT BE ABOVE 0.5mA) Disconnect the AC power and DC Power Jack before servicing.

  • Page 3: 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 4: Product Specifications

    2 Product Specifications 2-1 Specifications Description Item Analog Digital LCD Panel TFT-LCD panel, RGB vertical stripe, normally white transmissive, 19-Inch viewable, 0.264 pixel pitch Scanning Frequency Horizontal : 30 kHz ~ 81 kHz (Automatic) Vertical : 56 Hz ~ 75 Hz Display Colors 16.2 Million colors Maximum Resolution...

  • Page 5: Pin Assignments

    2 Product Specifications 2-2 Pin Assignments Sync 15-Pin D-Sub Signal Cable Connector Type Separate Composite Sync-on-green Pin No. Red video Red video Green video Green video Green video + H/V Sync. Blue video Blue video Blue video GND (DDC Return) GND (DDC Return) GND (DDC Return) Red video GND...
  • Page 6 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 Definition of Terms "Active"Video Blanking Video Front Back Back Top/Left...
  • Page 7 2 Product Specifications 2-3-2 Supported Modes (1) MO19P*/MO19E*...
  • Page 8 2 Product Specifications 2-3-2 Supported Modes (2) MO19P*/MO19E*...
  • Page 9 2 Product Specifications 2-3-2 Supported Modes (3) MO19P*/MO19E*...

  • Page 10: Troubleshooting

    4 Troubleshooting Notes: 1. Before troubleshooting, setup the PC’s display as below. • Resolution: 1280 x 1024 • H-frequency: 64 kHz • V-frequency: 60 Hz 2. If no picture appears, make sure the power cord is correctly connected. 3. Check the following circuits. •...
  • Page 11 4 Troubleshooting 4-2-1 No Video [Analog] Check signal cable and connection. Does the video signal appear at the Pin 48, 47, 46, 45, 42, 41, 40, 39, 38, and 37 of IC401? Is Pin 2 (BKLT_EN) of IC203 high? Check TFT-LCD panel and inverter. Check IC301 and related circuit.
  • Page 12 4 Troubleshooting 4-2-2 No Video [Digital] Check signal cable and connection. Does the video signal appear at the Pin 48, 47, 46, 45, 42, 41, 40, 39, 38, and 37 of IC401? Is Pin 2 (BKLT_EN) of IC203 high? Check TFT-LCD panel and inverter. Check IC301 and related circuit.
  • Page 13 4 Troubleshooting WAVEFORMS MO19P*/MO19E*...

  • Page 14: Electrical Parts List

    6 Electrical Parts List ❈ You can search for updated part codes through CMS web site. URL : http://ecms. samsungelectronics. com/ 6-1-1 MO19P* Main PCB Parts Loc. No. Code No. Description Specification Remarks BSNA94-00462A ASS PCB MAIN MO19PS BSNA39-00047A CBF-HARSNAESS 100MM,100MM,BLU/WHT/GR,UL1061,AWG28,51021-1200 BSNA63-00770A COVER-PLATE PCB...
  • Page 15 6 Electrical Parts List Loc. No. Code No. Description Specification Remarks C147 2203-005005 C-CERAMIC,CHIP 100SNAF,10%,16V,X7R,TP,1608 C148 2203-005005 C-CERAMIC,CHIP 100SNAF,10%,16V,X7R,TP,1608 C149 2203-005005 C-CERAMIC,CHIP 100SNAF,10%,16V,X7R,TP,1608 C150 2203-005005 C-CERAMIC,CHIP 100SNAF,10%,16V,X7R,TP,1608 C151 2402-001042 C-AL,SMD 100uF,20%,16V,GP,TP,6.6x6.6x5.4mm C152 2402-001042 C-AL,SMD 100uF,20%,16V,GP,TP,6.6x6.6x5.4mm C153 2409-001051 C-ORGASNAIC 82UF,20%,6.3V,WT,TP,6.3*5.9MM,2.1 C154 2409-001049 C-ORGASNAIC 47UF,20%,6.3V,FX,TP,5X5.9MM,-...

  • Page 16: Snaf,10%,16V,X7R,Tp

    6 Electrical Parts List Loc. No. Code No. Description Specification Remarks C351 2203-005005 C-CERAMIC,CHIP 100SNAF,10%,16V,X7R,TP,1608 C352 2203-000257 C-CERAMIC,CHIP 10SNAF,10%,50V,X7R,TP,1608 C353 2402-000108 C-AL,SMD 10uF,20%,16V,WT,TP,4.3x4.3x5.4 C357 2203-000626 C-CERAMIC,CHIP 0.022SNAF,5%,50V,C0G,TP,1608 C358 2203-000626 C-CERAMIC,CHIP 0.022SNAF,5%,50V,C0G,TP,1608 C359 2203-000384 C-CERAMIC,CHIP 0.015SNAF,5%,50V,C0G,TP,1608 C410 2203-005005 C-CERAMIC,CHIP 100SNAF,10%,16V,X7R,TP,1608 C411 2203-005005 C-CERAMIC,CHIP 100SNAF,10%,16V,X7R,TP,1608...
  • Page 17 6 Electrical Parts List Loc. No. Code No. Description Specification Remarks FT198 3301-001145 CORE-FERRITE BEAD AB,4.5x1.6x1.6mm,-,- FT199 3301-001145 CORE-FERRITE BEAD AB,4.5x1.6x1.6mm,-,- FT402 3301-001145 CORE-FERRITE BEAD AB,4.5x1.6x1.6mm,-,- FT403 3301-001145 CORE-FERRITE BEAD AB,4.5x1.6x1.6mm,-,- FT404 3301-001145 CORE-FERRITE BEAD AB,4.5x1.6x1.6mm,-,- FT405 3301-001145 CORE-FERRITE BEAD AB,4.5x1.6x1.6mm,-,- IC101 1203-001448...
  • Page 18 6 Electrical Parts List Loc. No. Code No. Description Specification Remarks R211 2007-000071 R-CHIP 22ohm,5%,1/16W,DA,TP,1608 R212 2007-000071 R-CHIP 22ohm,5%,1/16W,DA,TP,1608 R213 2007-000071 R-CHIP 22ohm,5%,1/16W,DA,TP,1608 R214 2007-000071 R-CHIP 22ohm,5%,1/16W,DA,TP,1608 R215 2007-000071 R-CHIP 22ohm,5%,1/16W,DA,TP,1608 R216 2007-000071 R-CHIP 22ohm,5%,1/16W,DA,TP,1608 R217 2007-000071 R-CHIP 22ohm,5%,1/16W,DA,TP,1608 R218 2007-000092 R-CHIP 15Kohm,5%,1/16W,DA,TP,1608...
  • Page 19 6 Electrical Parts List Loc. No. Code No. Description Specification Remarks R392 2007-000090 R-CHIP 10KOHM,5%,1/16W,DA,TP,1608 R395 2007-000074 R-CHIP 100ohm,5%,1/16W,DA,TP,1608 R396 2007-000090 R-CHIP 10KOHM,5%,1/16W,DA,TP,1608 R410 2007-000070 R-CHIP 0ohm,5%,1/16W,DA,TP,1608 R411 2007-000072 R-CHIP 47ohm,5%,1/16W,DA,TP,1608 R412 2007-000072 R-CHIP 47ohm,5%,1/16W,DA,TP,1608 R413 2007-000072 R-CHIP 47ohm,5%,1/16W,DA,TP,1608 R414 2007-000072 R-CHIP 47ohm,5%,1/16W,DA,TP,1608...
  • Page 20 6 Electrical Parts List 6-1-2 MO19P* Others Loc. No. Code No. Description Specification Remarks BSNA90-00514A ASS COVER FROSNAT MO19PS C/F+C/R 6003-000282 SCREW-TAPTITE BH,+,B,M3,L8,ZPC(BLK),SWCH10 BSNA96-00485B ASS COVER P-FROSNAT MO19PS,ABS HB 6003-000259 SCREW-TAPTITE BH,+,B,M3,L8,ZPC(EL),SWRCH18A BSNA39-00375A WIRE HARSNAESS MO19ES,UL20276,UL2725,UL/CSA,20P,250,BLK,32,30,28 AWG,12507HS-20W,DSUB15P, DJ651 BSNA63-00768A COVER-FROSNAT MO19ES,ABS HB BSNA64-00052A KSNAOB-FUSNACTIOSNA...
  • Page 21 6 Electrical Parts List Loc. No. Code No. Description Specification Remarks BSNA63-00155A GASKET GH17PSS,COSNADUCTIVE FABLIC,8MM,30MM,70MM,GRA,71TSSK 30-8-70-13,71TSSK 30-8-70-13 BSNA63-00351A COVER-DOOR MO17PS,ABS HB,BK07 BSNA63-00353A SHIELD-COSNASNAECTOR MO17PS,SPTE,T0.3 HISNA/TOP+SH/PCB 6003-000133 SCREW-TAPTITE BH,+,S,M4,L8,ZPC(EL),SWRCH18A,- ISNA/BRKT+SH/COV 6003-000282 SCREW-TAPTITE BH,+,B,M3,L8,ZPC(BLK),SWCH10 BSNA96-00488A ASS MISC P-SHIELD COVER MO19ES,SECC T2.0 BSNA92-00591J ASS ACCESSOR MO17ESDS/EDC,EDC,SNAETHERLASNADS BSNA96-00160J...
  • Page 22 6 Electrical Parts List 6-2-1 MO19E* Main PCB Parts Loc. No. Code No. Description Specification Remarks BN94-00462B ASSY PCB MAIN PI17BO BN39-00047A CBF-HARNESS 100MM,100MM,BLU/WHT/GRY,UL1061,AWG28,51021-1200 BN63-00770A COVER-PLATE PCB MO19ES,ABS PC CIS10 BN63-00266A GASKET MO15PS,CONDUCTIVE FABLIC,4MM,4MM,60MM,GRAY,71TTSK 4-4-60-13,71TTSK 4-4-60-13 CIS11 BN63-00265A GASKET MO15PS,CONDUCTIVE FABLIC,4MM,10MM,17MM,GRAY,71TSSK 10-4-17-13,71TSSK 10-4-17-13 IN/BRKT+PL/PC 6003-000117 SCREW-TAPTITE...
  • Page 23 6 Electrical Parts List Loc. No. Code No. Description Specification Remarks C149 2203-005005 C-CERAMIC,CHIP 100nF,10%,16V,X7R,TP,1608 C150 2203-005005 C-CERAMIC,CHIP 100nF,10%,16V,X7R,TP,1608 C151 2402-001042 C-AL,SMD 100uF,20%,16V,GP,TP,6.6x6.6x5.4mm C152 2402-001042 C-AL,SMD 100uF,20%,16V,GP,TP,6.6x6.6x5.4mm C153 2409-001051 C-ORGANIC 82UF,20%,6.3V,WT,TP,6.3*5.9MM,2.1 C154 2409-001049 C-ORGANIC 47UF,20%,6.3V,FX,TP,5X5.9MM,- C155 2203-005005 C-CERAMIC,CHIP 100nF,10%,16V,X7R,TP,1608 C156 2203-005005 C-CERAMIC,CHIP 100nF,10%,16V,X7R,TP,1608...
  • Page 24 6 Electrical Parts List Loc. No. Code No. Description Specification Remarks C352 2203-000257 C-CERAMIC,CHIP 10nF,10%,50V,X7R,TP,1608 C353 2402-000108 C-AL,SMD 10uF,20%,16V,WT,TP,4.3x4.3x5.4 C357 2203-000626 C-CERAMIC,CHIP 0.022NF,5%,50V,C0G,TP,1608 C358 2203-000626 C-CERAMIC,CHIP 0.022NF,5%,50V,C0G,TP,1608 C359 2203-000384 C-CERAMIC,CHIP 0.015NF,5%,50V,C0G,TP,1608 C410 2203-005005 C-CERAMIC,CHIP 100nF,10%,16V,X7R,TP,1608 C411 2203-005005 C-CERAMIC,CHIP 100nF,10%,16V,X7R,TP,1608 C412 2203-005005 C-CERAMIC,CHIP 100nF,10%,16V,X7R,TP,1608...
  • Page 25 6 Electrical Parts List Loc. No. Code No. Description Specification Remarks IC199 1203-001293 IC-POSI.FIXED REG. 033,T0-252,3P,6.5MIL,PLASTIC,3 IC201 1103-000129 IC-EEPROM 24C02,256x8BIT,SOP,8P,150MIL,1 IC203 0803-000117 IC-TTL 74F14,INVERTER,SOP,14P,150MIL, IC204 1204-001551 IC-VIDEO SYSTEM GS1881,SOIC,8P,150MIL,PLASTIC,13.2V,-,0TO+70C,TP,VIDEO SYNC SEPARATOR IC220 0803-000122 IC-TTL 74F125,BUFFER,SOP,14P,150MIL,Q IC301 1003-001506 IC-LCD CONTROLLER GM2120,PQFP,208P,28X28MM,-,-,TR,PLASTIC,3.45V,0TO+70CC,1.6W,2.4V,SXGA LCD CONTRO IC302_SOCK 3704-000249 SOCKET-IC...
  • Page 26 6 Electrical Parts List Loc. No. Code No. Description Specification Remarks R237 2007-000090 R-CHIP 10KOHM,5%,1/16W,DA,TP,1608 R240 2007-000090 R-CHIP 10KOHM,5%,1/16W,DA,TP,1608 R241 2007-000070 R-CHIP 0ohm,5%,1/16W,DA,TP,1608 R242 2007-000116 R-CHIP 120ohm,5%,1/16W,DA,TP,1608 R243 2007-001114 R-CHIP 680Kohm,5%,1/16W,DA,TP,1608 R252 2007-000084 R-CHIP 4.7Kohm,5%,1/16W,DA,TP,1608 R298 2007-001002 R-CHIP 510ohm,5%,1/16W,DA,TP,1608 R301 2007-000090 R-CHIP 10KOHM,5%,1/16W,DA,TP,1608...
  • Page 27 6 Electrical Parts List Loc. No. Code No. Description Specification Remarks R607 2007-000074 R-CHIP 100ohm,5%,1/16W,DA,TP,1608 R608 2007-000074 R-CHIP 100ohm,5%,1/16W,DA,TP,1608 R609 2007-000074 R-CHIP 100ohm,5%,1/16W,DA,TP,1608 R610 2007-000074 R-CHIP 100ohm,5%,1/16W,DA,TP,1608 R612 2007-000074 R-CHIP 100ohm,5%,1/16W,DA,TP,1608 R617 2007-000074 R-CHIP 100ohm,5%,1/16W,DA,TP,1608 R626 2007-000074 R-CHIP 100ohm,5%,1/16W,DA,TP,1608 R627 2007-000074 R-CHIP 100ohm,5%,1/16W,DA,TP,1608...
  • Page 28 6 Electrical Parts List 6-2-2 MO19E* Others Loc. No. Code No. Description Specification Remarks BN90-00514B ASSY COVER FRONT MO19ES C/F+C/R 6003-000282 SCREW-TAPTITE BH,+,B,M3,L8,ZPC(BLK),SWCH10 BN96-00485A ASSY COVER P-FRONT MO19ES,ABS HB 6003-000259 SCREW-TAPTITE BH,+,B,M3,L8,ZPC(YEL),SWRCH18A BN39-00375A WIRE HARNESS MO19ES,UL20276,UL2725,UL/CSA,20P,250,BLK,32,30,28 AWG,12507HS-20W,DSUB15P, DJ651 BN63-00768A COVER-FRONT MO19ES,ABS HB BN64-00052A KNOB-FUNCTION...
  • Page 29 TAPE-OPP MASKING OPP/W50/CLR,T0.05,W50,L400000, 6801-001073 CARD-REGISTRATION RUS,XEV,RUS,MOJO100,-,W220,L318,2,- 6902-000110 BAG PE LDPE,T0.05,L356,W240,TRP,28,2,PE MARK BH39-10339H CBF POWER CORD DET,H05VV-F,250V/10,16A,BLK,25 BH68-00374A CARD WARRANTY-01 ASC List,Samsung,ART100G,Russian,EDC,295,210 BH68-00376H MANUAL-00 WIN XP INSTALL GUIDE,SYNCMASTER,ENGLISH,W/W,MOJO100G,-,148,210,-,-,-,- BH68-00489A MANUAL-02 RUSSIAN W/CARD,SER,RUSSIAN,RUSSIA,MOJO100G BH68-70438A CARD-BLOC WARRANTY-09 TFT LCD,BASIC,EU,MOJO,100G,W21 BH68-70448A CARD-01 TFT LCD,SRC,RUSSIA,S/W,120,W210*L120,INSTALL CARD...
  • Page 30 7 Block Diagram 7-1 MO19P* MO19P*/MO19E*...
  • Page 31 7 Block Diagrams 7-2 MO19E* MO19P*/MO19E*...

  • Page 32: Wiring Diagram

    8 Wiring Diagram CN402 INVERTER CN101 BRT_ADJ BRIGHT BL_ON/OFF BKLT_EN MAIN PCB +14V DC +14V DC +14V DC +14V DC +14V DC +14V DC CN202 CN601 MO19P*/MO19E*...
  • Page 33 8 Wiring Diagram Memo MO19P*/MO19E*...
  • Page 34 CONFIDENTIAL 10 Schematic Diagrams 10-1-1 MO19E* Schematic Diagram +5V_M DVDD_3.3V +5V_M AVDD_2.5V DVDD_2.5V AVDD_3.3V R301 R302 R324 R710 1/16W RA303 1/16W DGND ER[0:7] 120ohm DER[0:7] ER(7) DER(7) DGND AGND AGND ER(6) DER(6) ER(5) DER(5) AVDD_3.3V ER(4) DER(4) DVDD_3.3V +5V_M ER(3) DER(3) ER(2) DER(2)
  • Page 35 10 Schematic Diagrams 10-2 MO19P*/MO19E*...
  • Page 36 CONFIDENTIAL 10 Schematic Diagrams 10-1-2 MO19E* Schematic Diagram +5V_SW D213 D212 +3.3V BZX84C5V1 BZX84C5V1 Close to respective power pins FT405 C410 C411 C412 BLM41P600S TP499 IC201 100nF 100nF 100nF R218 R219 NM24C02M8 D214 C207 QZX363C5V6 PANEL_5V 100nF 1/16W 1/16W R220 C413 FT403 DDC_SCL...
  • Page 37 10 Schematic Diagrams 10-4 MO19P*/MO19E*...
  • Page 38 CONFIDENTIAL 10 Schematic Diagrams 10-2-1 MO19P* Schematic Diagram +5V_M DVDD_3.3V AVDD_2.5V DVDD_2.5V AVDD_3.3V +5V_M R301 R324 R302 RA303 1/16W ER[0:7] 120ohm DER[0:7] ER(7) DER(7) 1/16W DGND AGND AGND ER(6) DER(6) ER(5) DER(5) AVDD_3.3V ER(4) DER(4) DVDD_3.3V +5V_M ER(3) DER(3) ER(2) DER(2) R366 ER(1)
  • Page 39 CONFIDENTIAL 10 Schematic Diagrams 10-6 MO19P*/MO19E*...
  • Page 40 CONFIDENTIAL 10 Schematic Diagrams 10-2-2 MO19P* Schematic Diagram +5V_SW D213 D212 BZX84C5V1 BZX84C5V1 +3.3V IC201 R218 R219 Close to respective power pins D214 NM24C02M8 C207 QZX363C5V6 FT405 100nF 1/16W 1/16W C410 C411 C412 BLM41P600S TP499 R220 100nF 100nF 100nF DDC_SCL DDC_SDA PANEL_5V R221...
  • Page 41 10 Schematic Diagrams 10-8 MO19P*/MO19E*...
  • Page 42 CONFIDENTIAL 10 Schematic Diagrams 10-2-3 MO19P* Schematic Diagram +14V IC101 +14V_INV PANEL_5V +5V_SW R199 LM2596S-5.0 +5V_M C190 C191 GND1 L112 R108 IC105 3.3UH SI9933ADY-T1 R109 L101 D1_1 22uH D2_1 C106 C110 R198 82uF R107 C198 R105 R106 100nF Q101 22uF 4.7K C111 C112...
  • Page 43 10 Schematic Diagrams Memo 10-10 MO19P*/MO19E*...
  • Page 44 Samsung Electronics Co.,Ltd. 416, Maetan-3Dong, Paldal-Gu, Suwon City, Kyungki-Do, Korea, 442-742 Printed in Korea P/N : BN82-00096C-00 http : //www.samsungmonitor.com (SyncMaster Worldwide) http : //www.samsung-monitor.com (SyncMaster USA) URL : http://ecms. samsungelectronics. com/...

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