Samsung 172T Service Manual
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Samsung 172T Service Manual

Samsung 172T Service Manual

Tft-lcd monitor
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SERVICE
TFT-LCD MONITOR
TFT-LCD MONITOR
Chassis
Model
MO17P*
172T
MO17E*
172B
Manual
CONTENTS
CONFIDENTIAL

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Summary of Contents for Samsung 172T

  • Page 1: Table Of Contents

    CONFIDENTIAL TFT-LCD MONITOR Chassis Model MO17P* 172T MO17E* 172B 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

    CONFIDENTIAL 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: Product Specifications

    CONFIDENTIAL 2 Product Specifications 2-1 Specifications Description Item Analog Digital LCD Panel TFT-LCD panel, RGB vertical stripe, normally white transmissive, 17-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 4: Disassembly And Reassembly

    CONFIDENTIAL 3 Disassembly and Reassembly This section of the service manual describes the disassembly and reassembly procedures for the MO17P*/MO17E* 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. 2.

  • Page 5: Troubleshooting

    CONFIDENTIAL 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 6: Exploded View & Parts List

    CONFIDENTIAL 5 Exploded View and Parts List MO17P*/MO17E*...

  • Page 7: Electrical Parts List

    CONFIDENTIAL 6 Electrical Parts List 6-1-1 MO17P* Main PCB Parts Loc. No. Code No. Description Specification Remarks BN94-00356A ASSY PCB MAIN MO17PS CIS1 0201-001223 ADHESIVE-TS HT-130S,RED,700+/- 50,- CIS2 0202-001044 SOLDER-WIRE. S63S-W3.0,S63S,D3,63Sn/37Pb,- CIS4 0202-001046 SOLDER-WIRE FLUX CF-110VH-2A,-,-,-,- CIS5 0202-001162 SOLDER-CREAM RMA-20-21L,S63,-,SN63/PB36.6/AG0.4,FLUX9.5% CIS6 0202-001222 SOLDER-WIRE FLUX...

  • Page 8: Block Diagram

    CONFIDENTIAL 7 Block Diagram 7-1 MO17P* MO17P*/MO17E*...

  • Page 9: Wiring Diagram

    CONFIDENTIAL 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 MO17P*/MO17E*...

  • Page 10: Schematic Diagrams

    CONFIDENTIAL 9 Schematic Diagrams 9-1 Schematic Diagram +5V_M DVDD_3.3V AVDD_2.5V DVDD_2.5V AVDD_3.3V +5V_M R301 4.7K R324 R302 RA303 1/16W 120ohm ER[0:7] DER[0:7] ER(7) DER(7) 1/16W DGND AGND AGND ER(6) DER(6) (1%) 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...

  • Page 11: Panel Description

    CONFIDENTIAL 10 Panel Description Maker VENDOR P/N PANEL_CODE PANEL_ABB STICKER_CODE Remarks LT140X1-002 BN07-00004A BN68-00187A LT150XS-L01 BN07-00009A BN68-00187B LT150XS-L01-B BN07-00022A BN68-00187C LTM150XS-L02 BN07-00005A BN68-00187D LT181E2-132 BN07-00001A BN68-00187E LT150XS-T01 BN07-00010A BN68-00187F LTM181E3-132 BN07-00019A BN68-00187G LT170E2-131 BN07-10001D BN68-00187H LT181E2-131 BN07-10001E BN68-00187J LTM170E4-L01 BN07-00018A BN68-00187K LTM240W1-L01 BN07-00015A...
  • Page 12 CONFIDENTIAL Copyright Trademarks © 2002 by Samsung Electronics Co., Ltd. Samsung is the registered trademark of Samsung Electronics Co., Ltd. All rights reserved. MO17P*/MO17E* and Macmaster Cable Adapter This manual may not, in whole or in part, be are trademarks of Sansung Electronics Co., Ltd.
  • Page 13 CONFIDENTIAL 10 Panel Description Memo 10-2 MO17P*/MO17E*...
  • Page 14 CONFIDENTIAL 9 Schematic Diagrams MO17P*/MO17E*...
  • Page 15 CONFIDENTIAL 9 Schematic Diagrams 9-2 Schematic Diagram +5V_SW D213 D212 BZX84C5V1 BZX84C5V1 IC201 +3.3V R218 R219 Close to respective power pins D214 NM24C02M8 C207 QZX363C5V6 FT405 100nF 1/16W 1/16W TP499 C410 C411 C412 BLM41P600S R220 100nF 100nF 100nF DDC_SCL DDC_SDA PANEL_5V R221 C413...
  • Page 16 CONFIDENTIAL 9 Schematic Diagrams MO17P*/MO17E*...
  • Page 17 CONFIDENTIAL 9 Schematic Diagrams 9-3 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 4.7K Q101 22uF C111 C112 C113...
  • Page 18 CONFIDENTIAL 9 Schematic Diagrams Memo MO17P*/MO17E*...
  • Page 19 CONFIDENTIAL 8 Wiring Diagram Memo MO17P*/MO17E*...
  • Page 20 CONFIDENTIAL 7 Block Diagrams 7-2 MO17E* MO17P*/MO17E*...
  • Page 21 CONFIDENTIAL 6 Electrical Parts List Loc. No. Code No. Description Specification Remarks C145 2203-005005 C-CERAMIC,CHIP 100nF,10%,16V,X7R,TP,1608 C146 2203-005005 C-CERAMIC,CHIP 100nF,10%,16V,X7R,TP,1608 C147 2203-005005 C-CERAMIC,CHIP 100nF,10%,16V,X7R,TP,1608 C148 2203-005005 C-CERAMIC,CHIP 100nF,10%,16V,X7R,TP,1608 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...
  • Page 22 CONFIDENTIAL 6 Electrical Parts List Loc. No. Code No. Description Specification Remarks C351 2203-005005 C-CERAMIC,CHIP 100nF,10%,16V,X7R,TP,1608 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,NP0,TP,1608 C358 2203-000626 C-CERAMIC,CHIP 0.022nF,5%,50V,NP0,TP,1608 C359 2203-000384 C-CERAMIC,CHIP 0.015nF,5%,50V,NP0,TP,1608 C410 2203-005005 C-CERAMIC,CHIP 100nF,10%,16V,X7R,TP,1608 C411 2203-005005 C-CERAMIC,CHIP...
  • Page 23 CONFIDENTIAL 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 24 CONFIDENTIAL 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...
  • Page 25 CONFIDENTIAL 6 Electrical Parts List Loc. No. Code No. Description Specification Remarks R413 2007-000072 R-CHIP 47ohm,5%,1/16W,DA,TP,1608 R414 2007-000072 R-CHIP 47ohm,5%,1/16W,DA,TP,1608 R415 2007-000072 R-CHIP 47ohm,5%,1/16W,DA,TP,1608 R416 2007-000072 R-CHIP 47ohm,5%,1/16W,DA,TP,1608 R417 2007-000072 R-CHIP 47ohm,5%,1/16W,DA,TP,1608 R418 2007-000072 R-CHIP 47ohm,5%,1/16W,DA,TP,1608 R419 2007-000072 R-CHIP 47ohm,5%,1/16W,DA,TP,1608 R420 2007-000072 R-CHIP...
  • Page 26 CONFIDENTIAL 6 Electrical Parts List 6-1-2 MO17P* Others Loc. No. Code No. Description Specification Remarks BN90-00385A ASSY COVER FRONT MO17PS C/F+C/R 6003-000282 SCREW-TAPTITE BH,+,B,M3,L8,ZPC(BLK),SWCH10 BN96-00102A ASSY COVER P-FRONT MO17PS,ABS HB,BK07 6003-000117 SCREW-TAPTITE BH,+,B,M3,L6,ZPC(YEL),SWRCH18A BN59-00310A BOARD-FUNCTION ASS’Y MO17PS,FUNCTION ASS’Y BN63-00349A COVER-FRONT MO17PS,ABS HB,BK07 BN64-00052A KNOB-FUNCTION...
  • Page 27 CONFIDENTIAL 6 Electrical Parts List Loc. No. Code No. Description Specification Remarks BN92-00547A ASSY BOX MO17PS BH68-00329C LABEL BAR CODE -,ALL,TCO99,DOMESTIC,ART-PAPER 90G,-,WHT,BLACK,-,-,- BH75-10529C UNIT-HANDLE/PACKING S/M170MP,PE-LD,PE-HD,-,WHITE,- BN72-60001A LEVER TOP LSD210TL,PE-LD,WHITE,TFT_LCD BN72-60002C LEVER BOTTOM S/M170MP,PE-HD,BLUE BN69-00372A S/M172T,W/W,CB-SW4,WHT,OFFSET,A-1,L473*W399*H122 BN92-00548A ASSY LABEL MO17PS BN68-00309B LABEL RATING MO17PS,EDC,SYNC,PE,T0.05,90,45,PE NATURE,SILVER/GUNMETAL BN92-00549A...
  • Page 28 CONFIDENTIAL 6 Electrical Parts List 6-2-1 MO17E* Main PCB Parts Loc. No. Code No. Description Specification Remarks BN94-00357A ASSY PCB MAIN MO17ES CIS1 0201-001223 ADHESIVE-TS HT-130S,RED,700+/- 50,- CIS2 0202-001044 SOLDER-WIRE. S63S-W3.0,S63S,D3,63Sn/37Pb,- CIS4 0202-001046 SOLDER-WIRE FLUX CF-110VH-2A,-,-,-,- CIS5 0202-001162 SOLDER-CREAM RMA-20-21L,S63,-,SN63/PB36.6/AG0.4,FLUX9.5% CIS6 0202-001222 SOLDER-WIRE FLUX...
  • Page 29 CONFIDENTIAL 6 Electrical Parts List Loc. No. Code No. Description Specification Remarks C146 2203-005005 C-CERAMIC,CHIP 100nF,10%,16V,X7R,TP,1608 C147 2203-005005 C-CERAMIC,CHIP 100nF,10%,16V,X7R,TP,1608 C148 2203-005005 C-CERAMIC,CHIP 100nF,10%,16V,X7R,TP,1608 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 2402-001042 C-AL,SMD...
  • Page 30 CONFIDENTIAL 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,NP0,TP,1608 C358 2203-000626 C-CERAMIC,CHIP 0.022nF,5%,50V,NP0,TP,1608 C359 2203-000384 C-CERAMIC,CHIP 0.015nF,5%,50V,NP0,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...
  • Page 31 CONFIDENTIAL 6 Electrical Parts List Loc. No. Code No. Description Specification Remarks IC201 1103-000129 IC-EEPROM 24C02,256x8BIT,SOP,8P,150MIL,1 IC203 0803-000117 IC-TTL 74F14,INVERTER,SOP,14P,150MIL, IC301 1003-001506 IC-LCD CONTROLLER GM2120,PQFP,208P,28X28MM,-,-,TR,PLASTIC,3.45V,0TO+70CC,1.6W,2.4V,SXGA LCD CONTRO IC302 1102-001097 IC-EPROM 27C010,128KX8BIT,PLCC,32P,-,90NS,5V,10%,PLASTIC,0TO+70C,0.1MA,CMOS,TR IC302_SOCK 3704-000249 SOCKET-IC 32P,PLCC,SN,1.27mm IC303 1203-001212 IC-VOL. DETECTOR 7029,SOT-89,3P,-,PLASTIC,-,500 IC305 1103-001023 IC-EEPROM...
  • Page 32 CONFIDENTIAL 6 Electrical Parts List Loc. No. Code No. Description Specification Remarks R302 2007-001935 R-CHIP 820ohm,5%,1/16W,DA,BK,1608 R321 2007-000090 R-CHIP 10KOHM,5%,1/16W,DA,TP,1608 R322 2007-000090 R-CHIP 10KOHM,5%,1/16W,DA,TP,1608 R324 2007-000090 R-CHIP 10KOHM,5%,1/16W,DA,TP,1608 R329 2007-000090 R-CHIP 10KOHM,5%,1/16W,DA,TP,1608 R330 2007-000090 R-CHIP 10KOHM,5%,1/16W,DA,TP,1608 R331 2007-000074 R-CHIP 100ohm,5%,1/16W,DA,TP,1608 R334 2007-000074 R-CHIP...
  • Page 33 CONFIDENTIAL 6 Electrical Parts List Loc. No. Code No. Description Specification Remarks R691 2007-000072 R-CHIP 47ohm,5%,1/16W,DA,TP,1608 R692 2007-000072 R-CHIP 47ohm,5%,1/16W,DA,TP,1608 R693 2007-000072 R-CHIP 47ohm,5%,1/16W,DA,TP,1608 R694 2007-000072 R-CHIP 47ohm,5%,1/16W,DA,TP,1608 R695 2007-000072 R-CHIP 47ohm,5%,1/16W,DA,TP,1608 R696 2007-000072 R-CHIP 47ohm,5%,1/16W,DA,TP,1608 R697 2007-000072 R-CHIP 47ohm,5%,1/16W,DA,TP,1608 R698 2007-000072 R-CHIP...
  • Page 34 CONFIDENTIAL 6 Electrical Parts List 6-2-2 MO17E* Others Loc. No. Code No. Description Specification Remarks BN90-00386A ASSY COVER REAR MO17PS BN96-00143A ASSY COVER P-REAR MO17PS/ES,ABS HB,BK07 BN63-00350A COVER-REAR MO17PS,ABS HB,BK07 BN73-00020A RUBBER-FOOT MO15PS/ES,RUBBER,T 1.5,BLK BN90-00390A ASSY COVER FRONT MO17ES C/F+C/R 6003-000282 SCREW-TAPTITE BH,+,B,M3,L8,ZPC(BLK),SWCH10...
  • Page 35 CONFIDENTIAL 6 Electrical Parts List Loc. No. Code No. Description Specification Remarks BH68-00329C LABEL BAR CODE -,ALL,TCO99,DOMESTIC,ART-PAPER 90G,-,WHT,BLACK,-,-,- BH75-10529C UNIT-HANDLE/PACKING S/M170MP,PE-LD,PE-HD,-,WHITE,- BN72-60001A LEVER TOP LSD210TL,PE-LD,WHITE,TFT_LCD BN72-60002C LEVER BOTTOM S/M170MP,PE-HD,BLUE BN69-00371A S/M172B,W/W,CB-SW4,WHT,OFFSET,A-1,L473*W399*H122 BN92-00555A ASSY LABEL MO17ES BN68-00310B LABEL RATING MO17ES,EDC,SYNC,PE,T0.05,90,45,PE NATURE,SILVER/GUNMETAL BN92-00556A ASSY ACCESSORY MO17ES...
  • Page 36 CONFIDENTIAL 5 Exploded View & Parts List Memo MO17P*/MO17E*...
  • Page 37 CONFIDENTIAL 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 38: No Video [Digital

    CONFIDENTIAL 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 37of IC401? Is Pin 2(BKLT_EN) of IC203 High? Check TFT-LCD panel and Inverter. Check IC301 and related circuit.
  • Page 39 CONFIDENTIAL 4 Troubleshooting WAVEFORMS MO17P*/MO17E*...
  • Page 40 CONFIDENTIAL 3 Disassembly and Reassembly 4. Remove 2 screws on the hinge mounting. Do not remove the screw for cable clamp. 5. Disconnect the stand cable from socket and remove stand assembly. 6. Remove 2 screws of cover rear. 7. Open the cover rear by using opening jig.
  • Page 41 CONFIDENTIAL 3 Disassembly and Reassembly 9. Seperate shield ass’y and panel ass’y. 10. Remove screws on main board and inverter board. MO17P*/MO17E*...
  • Page 42 CONFIDENTIAL 3 Disassembly and Reassembly 3-2 Replacement Order of Lamp Assemblies 1. After confirm there is nothing on the disk Turn the LCD module over and put it on a flat desk set to the ground. 2. Push down the stopper and slide the lamp unit.
  • Page 43 CONFIDENTIAL 3 Disassembly and Reassembly 4. Please fix the new lamp units on the LCD module : opposite process 2 and 3 Replacement of lamp unit should be done at the power off state and recommanded clean bench condition. 3-3 Reassembly Reassembly procedures are in the reverse order of Disassembly procedures.
  • Page 44 CONFIDENTIAL 3 Disassembly and Reassembly Memo MO17P*/MO17E*...

  • Page 45: Pin Assignments

    CONFIDENTIAL 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 46 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 Definition of Terms "Activer"Video Blanking Video Back Top/Left "Addressable"Video...
  • Page 47 CONFIDENTIAL 2 Product Specifications 2-3-2 Supported Modes (1) MO17P*/MO17E*...
  • Page 48 CONFIDENTIAL 2 Product Specifications 2-3-2 Supported Modes (2) MO17P*/MO17E*...
  • Page 49 CONFIDENTIAL 2 Product Specifications 2-3-2 Supported Modes (3) MO17P*/MO17E*...
  • Page 50 CONFIDENTIAL 2 Product Specifications 2-3-2 Supported Modes (4) MO17P*/MO17E*...
  • Page 51 CONFIDENTIAL 2 Product Specifications Memo MO17P*/MO17E*...

  • Page 52: Servicing Precautions

    CONFIDENTIAL 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 53 Samsung Electronics Co.,Ltd. 416, Maetan-3Dong, Paldal-Gu, Suwon City, Kyungki-Do, Korea. Printed in Korea P/N : BN82-00074A-00 http://www.samsungmonitor.com (SyncMaster Worldwide) http://www.samsung-monitor.com (SyncMaster USA) http://www.sec.co.kr/monitor (Korea)

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