Samsung MO15P Series Service Manual
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Samsung MO15P Series Service Manual

Samsung MO15P Series Service Manual

Tft-lcd monitor
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SERVICE
TFT-LCD MONITOR
TFT-LCD MONITOR
MO15P*
Manual
CONTENTS
10. Panel Description
CONFIDENTIAL

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Summary of Contents for Samsung MO15P Series

  • Page 1: Table Of Contents

    CONFIDENTIAL TFT-LCD MONITOR MO15P* 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. Schematic Diagrams 10. Panel Description...
  • Page 2 Samsung Electronics Co.,Ltd. 416, Maetan-3Dong, Paldal-Gu, Suwon City, Kyungki-Do, Korea. Printed in Korea P/N : BN81-00034A-00 http://www.samsungmonitor.com (SyncMaster Worldwide) http://www.samsung-monitor.com (SyncMaster USA) http://www.sec.co.kr/monitor (Korea)

  • Page 3: 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 4: 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 5: Product Specifications

    CONFIDENTIAL 2 Product Specifications 2-1 Specifications Description Item Analog Digital LCD Panel TFT-LCD panel, RGB vertical stripe, normally white transmissive, 15-Inch viewable, 0.297 pixel pitch Scanning Frequency Horizontal : 30 kHz ~ 61 kHz (Automatic) Vertical : 56 Hz ~ 75 Hz Display Colors 16,2 Million colors Maximum Resolution...

  • Page 6: 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 7 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 8 CONFIDENTIAL 2 Product Specifications 2-3-2 Supported Modes (1) MO15P*...
  • Page 9 CONFIDENTIAL 2 Product Specifications 2-3-2 Supported Modes (2) MO15P*...
  • Page 10 CONFIDENTIAL 2 Product Specifications 2-3-2 Supported Modes (3) MO15P*...

  • Page 11: Disassembly And Reassembly

    CONFIDENTIAL 3 Disassembly and Reassembly This section of the service manual describes the disassembly and reassembly procedures for the MO15P* 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 12 CONFIDENTIAL 3 Disassembly and Reassembly 4. Remove 2 flat head 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.
  • Page 13 CONFIDENTIAL 3 Disassembly and Reassembly 9. Remove the 4 screws of panel. 10. Turn the monitor for face down and open the Cover Rear from top area. 11. Disconnect the function cable from the connector of main board. 12. Remove the 3 screws of shield. MO15P*...
  • Page 14 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 15 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 16 CONFIDENTIAL 3 Disassembly and Reassembly Memo MO15P*...

  • Page 17: Troubleshooting

    CONFIDENTIAL 4 Troubleshooting Notes: 1. Before troubleshooting, setup the PC’s display as below. • Resolution: 1024 x 768 • H-frequency: 48 kHz • V-frequency: 60 Hz 2. If no picture appears, make sure the power cord is correctly connected. 3. Check the following circuits. •...
  • Page 18 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 19 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 20 CONFIDENTIAL 4 Troubleshooting WAVEFORMS MO15P*...
  • Page 21 CONFIDENTIAL 5 Exploded View and Parts List MO15P*...

  • Page 22: Exploded View & Parts List

    CONFIDENTIAL 5 Exploded View & Parts List Memo MO15P*...

  • Page 23: Electrical Parts List

    CONFIDENTIAL 6 Electrical Parts List 6-1 Main PCB Parts Loc. No. Code No. Description Specification Remarks BN91-00311B ASSY LCD GD15NS,-,-,- BN07-00043A LTM15C458,GH15LS,6BIT_FRC,331.6*254.7*12.5,16.1M,60,0.297*0.297,0~40,3.3,TOSHIBA BN91-00339A ASSY CHASSIS MO15PS BN94-00299A ASSY PCB MAIN MO15PS IC303 1203-001212 IC-VOL. DETECTOR 7029,SOT-89,3P,-,PLASTIC,-,500 BN39-00258A LEAD CONNECTOR ASSY MO15PS,UL1589#30,UL/CSA,20P,#30,12507HS-20,12507HS-20,BK,45MM,1589#30,CORE BN44-00066A INVERTER...
  • Page 24 CONFIDENTIAL 6 Electrical Parts List Loc. No. Code No. Description Specification Remarks C144 2203-005005 C-CERAMIC,CHIP 100nF,10%,16V,X7R,TP,1608 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 2203-005005 C-CERAMIC,CHIP...
  • Page 25 CONFIDENTIAL 6 Electrical Parts List Loc. No. Code No. Description Specification Remarks C303 2203-001086 C-CERAMIC,CHIP 0.005nF,0.25pF,50V,NP0,TP,1608 C304 2203-005005 C-CERAMIC,CHIP 100nF,10%,16V,X7R,TP,1608 C350 2402-000108 C-AL,SMD 10uF,20%,16V,WT,TP,4.3x4.3x5.4 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...
  • Page 26 CONFIDENTIAL 6 Electrical Parts List Loc. No. Code No. Description Specification Remarks FT404 3301-001145 CORE-FERRITE BEAD AB,4.5x1.6x1.6mm,-,- FT405 3301-001145 CORE-FERRITE BEAD AB,4.5x1.6x1.6mm,-,- IC101 1203-000404 IC-DC/DC CONVERTER 34063,SOP,8P,150MIL,PLASTIC,1.0/1.3V,-,0TO+70C,4.0MA,-,ST IC103 1203-001447 IC-POSI.FIXED REG. 2596,TO-263,5P,-,PLASTIC,3.135 IC104 1203-001890 IC-VOLTAGE REGULATOR 3961,SOT223-5,5P,-,PLASTIC,2.5V,-,-40to+125C,800mA,-,TR IC201 1103-000129 IC-EEPROM 24C02,256x8BIT,SOP,8P,150MIL,1 IC202 1103-000129...
  • Page 27 CONFIDENTIAL 6 Electrical Parts List Loc. No. Code No. Description Specification Remarks R218 2007-000092 R-CHIP 15Kohm,5%,1/16W,DA,TP,1608 R219 2007-000092 R-CHIP 15Kohm,5%,1/16W,DA,TP,1608 R220 2007-000074 R-CHIP 100ohm,5%,1/16W,DA,TP,1608 R221 2007-000074 R-CHIP 100ohm,5%,1/16W,DA,TP,1608 R222 2007-000090 R-CHIP 10KOHM,5%,1/16W,DA,TP,1608 R223 2007-000074 R-CHIP 100ohm,5%,1/16W,DA,TP,1608 R224 2007-000074 R-CHIP 100ohm,5%,1/16W,DA,TP,1608 R225 2007-000074 R-CHIP...
  • Page 28 CONFIDENTIAL 6 Electrical Parts List Loc. No. Code No. Description Specification Remarks R601 2007-000090 R-CHIP 10KOHM,5%,1/16W,DA,TP,1608 R602 2007-000090 R-CHIP 10KOHM,5%,1/16W,DA,TP,1608 R603 2007-000090 R-CHIP 10KOHM,5%,1/16W,DA,TP,1608 R604 2007-000090 R-CHIP 10KOHM,5%,1/16W,DA,TP,1608 R605 2007-000090 R-CHIP 10KOHM,5%,1/16W,DA,TP,1608 R606 2007-000090 R-CHIP 10KOHM,5%,1/16W,DA,TP,1608 R607 2007-000074 R-CHIP 100ohm,5%,1/16W,DA,TP,1608 R608 2007-000074 R-CHIP...

  • Page 29: Block Diagram

    CONFIDENTIAL 7 Block Diagram MO15P*...
  • Page 30 CONFIDENTIAL 7 Block Diagrams Memo MO15P*...

  • Page 31: 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 CN201 CN504 MO15P*...
  • Page 32 CONFIDENTIAL 8 Wiring Diagram Memo MO15P*...

  • Page 33: 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 ER(6) DER(6) DGND AGND AGND (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 34 CONFIDENTIAL 9 Schematic Diagrams 9-2 Schematic Diagram +5V_SW D213 D212 BZX84C5V1 BZX84C5V1 IC201 R218 R219 D214 NM24C02M8 C207 QZX363C5V6 100nF 1/16W 1/16W R220 +14V R221 AGND AGND AGND R222 1/16W R223 CHK_DSUB PGND BKLT_EN1 R224 A_V_SYNC +14VDC R225 +14VDC A_H*V_SYNC +3.3V PANEL_3.3V Close to respective power pins...
  • Page 35 CONFIDENTIAL 9 Schematic Diagrams MO15P*...
  • Page 36 CONFIDENTIAL 9 Schematic Diagrams 9-3 Schematic Diagram +5V_M +5V_M +3.3V PANEL_3.3V +5V_SW +14V +5V_M +14V_INV IC101 MC34063ACD R101 R108 0.33 L112 IC105 101uH SI9933ADY-T1 R109 L101 D1_1 101uH *PANEL_EN D2_1 R107 R105 R106 4.7K Q101 C111 C112 C113 C114 C116 KSC1623-Y 100nF OFF_SW...

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