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Samsung MO15E Series Service Manual

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SERVICE
TFT-LCD MONITOR
TFT-LCD MONITOR
MO15E*
Manual
CONFIDENTIAL
CONTENTS

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Summary of Contents for Samsung MO15E Series

  • Page 1: Table Of Contents

    CONFIDENTIAL TFT-LCD MONITOR MO15E* 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: 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 Item Description LCD Panel TFT-LCD panel, RGB vertical stripe, normaly white, 15-Inch viewable, 0.297 mm pixel pitch Scanning Frequency Horizontal : 31 kHz ~ 60 kHz (Automatic) Vertical : 56 Hz ~ 75 Hz (Automatic) Display Colors 16.2 M 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 MO15E* 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: 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 6: Exploded View & Parts List

    CONFIDENTIAL 5 Exploded View and Parts List MO15E*...

  • Page 7: Electrical Parts List

    CONFIDENTIAL 6 Electrical Parts List 6-1 Main PCB Parts Loc. No. Code No. Description Specification Remarks BN94-00302A ASSY PCB MAIN MO15ES BH73-60304E RUBBER-SUPPORT MO15PS,CR V0,6*6*6.4,BLACK BN39-00002A CBF-HARNESS -,60,BLU/WHT,-,26,- BN39-00251A LEAD CONNECTOR ASSY MO15ES,UL1571#30,UL/CSA,20P,#30,12507HS-20,12507HS-20,BK,40MM,1571#30,SJ01-01-33 BN44-00066A INVERTER MO15PS,SIC581,48KHZ,14VDC,2.6MARMS,6.1MARMS,48KHZ,140*50*8.0,4LAMP BN70-00264A PLATE-BRKT GROUND MO15PS,SECC,-,T0.8,-,-,-,-,MO15PS BN72-00307A PLATE-PCB MO15PS,ABS+PC,IV16,-,-,5V,-,-,-...

  • Page 8: Block Diagram

    CONFIDENTIAL 7 Block Diagram MO15E*...

  • Page 9: Wiring Diagram

    CONFIDENTIAL 8 Wiring Diagram 8 Wiring Diagram MO15E*...

  • Page 10: Schematic Diagrams

    CONFIDENTIAL 9 Schematic Diagrams 9-1 Schematic Diagram IC100 +14V LM2596S-3.3 +3.3V +3.3V IC201 GND1 NC7SZ14M5X PANEL_3.3V A_H*V_SYNC IC101 H*V_SYNC MS_3.3V SI9933ADY-T1 L101 C204 C220 53uH D100 100nF R101 10uF SK34 *PANEL_EN D1_1 R102 C107 C100 C101 C102 C103 R100 C104 D2_1 *DPMS_ON 100uF...

  • 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 a registered trademark and MO15E* and MacMaster Cable Adapter are All rights reserved. trademarks of Samsung Electronics Co., Ltd. This manual may not, in whole or in part, be...
  • Page 13 CONFIDENTIAL 10 Panel Description Memo 10-2 MO15E*...
  • Page 14 CONFIDENTIAL 9 Schematic Diagrams MO15E*...
  • Page 15 CONFIDENTIAL 9 Schematic Diagrams 9-2 Schematic Diagram MS_3.3V L301 C305 C306 L302 1.5uH 22uF 100nF 1.5uH V_SYNC H_SYNC R302 C320 C321 C322 C323 C324 C325 1/16W 100nF 100nF 100nF 100nF 100nF 100nF IC602 RC1117ST-3.3 C307 C308 22uF 100nF R312 IC301 R300 KIA431AF-RTF VOUT...
  • Page 16 CONFIDENTIAL 9 Schematic Diagrams MO15E*...
  • Page 17 CONFIDENTIAL 9 Schematic Diagrams 9-3 Schematic Diagram MS_3.3V L400 1.5uH PANEL_3.3V C400 L401 C401 C402 100uF 1.5uH 100uF 10nF L403 1.5uH L402 1.5uH DER(7:0) C407 IC401 470nF DS90C385MTD DER(4) TXIN4 DER(7) DER(3) TXIN5 TXIN3 DER(5) DER(2) TXIN6 TXIN2 DEG(0) TXIN7 GND5 DER(1) GND1...
  • Page 18 CONFIDENTIAL 9 Schematic Diagrams MO15E*...
  • Page 19 CONFIDENTIAL 8 Wiring Diagram Memo MO15E*...
  • Page 20 CONFIDENTIAL 7 Block Diagrams Memo MO15E*...
  • Page 21 CONFIDENTIAL 6 Electrical Parts List Loc. No. Code No. Description Specification Remarks C311 2203-000888 C-CERAMIC,CHIP 4.7nF,10%,50V,X7R,TP,1608 C312 2203-000257 C-CERAMIC,CHIP 10nF,10%,50V,X7R,TP,1608 C313 2203-000257 C-CERAMIC,CHIP 10nF,10%,50V,X7R,TP,1608 C314 2203-000888 C-CERAMIC,CHIP 4.7nF,10%,50V,X7R,TP,1608 C315 2203-000888 C-CERAMIC,CHIP 4.7nF,10%,50V,X7R,TP,1608 C316 2402-000135 C-AL,SMD 22uF,20%,16V,GP,TP,5.3x5.3x5.4 C317 2203-005005 C-CERAMIC,CHIP 100nF,10%,16V,X7R,TP,1608 C318 2203-000280 C-CERAMIC,CHIP...
  • Page 22 CONFIDENTIAL 6 Electrical Parts List Loc. No. Code No. Description Specification Remarks C507 2203-000626 C-CERAMIC,CHIP 0.022nF,5%,50V,NP0,TP,1608 C508 2402-000108 C-AL,SMD 10uF,20%,16V,WT,TP,4.3x4.3x5.4 C509 2203-001652 C-CERAMIC,CHIP 470nF,+80-20%,16V,Y5V,TP,1608 C510 2203-005005 C-CERAMIC,CHIP 100nF,10%,16V,X7R,TP,1608 C511 2203-000384 C-CERAMIC,CHIP 0.015nF,5%,50V,NP0,TP,1608 C512 2203-000384 C-CERAMIC,CHIP 0.015nF,5%,50V,NP0,TP,1608 C513 2203-001652 C-CERAMIC,CHIP 470nF,+80-20%,16V,Y5V,TP,1608 C600 2203-000189 C-CERAMIC,CHIP...
  • Page 23 CONFIDENTIAL 6 Electrical Parts List Loc. No. Code No. Description Specification Remarks MP1.0 BN41-00161A PCB MAIN MO15ES,FR4,4L,120*100*1.0,MO15ES Q600 0501-000342 TR-SMALL SIGNAL KSC1623-Y,NPN,200mW,SOT-23,TP,135-270 Q601 0501-000342 TR-SMALL SIGNAL KSC1623-Y,NPN,200mW,SOT-23,TP,135-270 Q701 0501-000342 TR-SMALL SIGNAL KSC1623-Y,NPN,200mW,SOT-23,TP,135-270 R100 2007-000084 R-CHIP 4.7Kohm,5%,1/16W,DA,TP,1608 R101 2007-000090 R-CHIP 10KOHM,5%,1/16W,DA,TP,1608 R102 2007-000090 R-CHIP...
  • Page 24 CONFIDENTIAL 6 Electrical Parts List Loc. No. Code No. Description Specification Remarks R409 2007-000072 R-CHIP 47ohm,5%,1/16W,DA,TP,1608 R410 2007-000072 R-CHIP 47ohm,5%,1/16W,DA,TP,1608 R411 2007-000070 R-CHIP 0ohm,5%,1/16W,DA,TP,1608 R500 2007-000077 R-CHIP 470ohm,5%,1/16W,DA,TP,1608 R501 2007-000090 R-CHIP 10KOHM,5%,1/16W,DA,TP,1608 R502 2007-000074 R-CHIP 100ohm,5%,1/16W,DA,TP,1608 R503 2007-000074 R-CHIP 100ohm,5%,1/16W,DA,TP,1608 R504 2007-000090 R-CHIP...
  • Page 25 CONFIDENTIAL 6 Electrical Parts List 6-2 Others Loc. No. Code No. Description Specification Remarks BN90-00304A ASSY COVER FRONT MO15PS BN90-00053B ASSY COVER FRONT MO15PS,ABS HB,BK07,ANALOG BN90-00305A ASSY COVER REAR MO15PS BN90-00054B ASSY REAR MO15ES,ABS HB BK07 BN90-00306A ASSY STAND MO15PS BN90-00056B ASSY STAND MO15PS,ABS HB,BK07,ANALOG...
  • Page 26 CONFIDENTIAL 5 Exploded View & Parts List Memo MO15E*...
  • Page 27 CONFIDENTIAL 4 Troubleshooting 4-2 No Video Power indicator is green. Does the H-sync Does the clock pulse Does the pulse appear pulse appear at appear at Pin 78 of IC300? at Pin 8 of IC501? Pin 38, 39 of IC300? Replace X501 or Does the clock pulse check its related circuit.
  • Page 28 CONFIDENTIAL 4 Troubleshooting WAVEFORMS MO15E*...
  • Page 29 CONFIDENTIAL 4 Troubleshooting 4-3 No OSD There is video but no OSD. Press exit key for more than 5 seconds to do the factory preset. While pushing a front control Do the pulses appear at Pin2 button, does any pulse appear and Pin3 of CN600 while pushing a front control button? at Pin 16, 17 of IC501?
  • Page 30 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 31 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. MO15E*...
  • Page 32 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. Remove the screw and slide the lamp unit.
  • Page 33 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 34 CONFIDENTIAL 3 Disassembly and Reassembly Memo MO15E*...

  • Page 35: Pin Assignments

    CONFIDENTIAL 2 Product Specifications 2-2 Pin Assignments Sync 15-Pin Signal Cable Connector Type Separate Composite Sync-on-green Pin No. Green Green Green + H/V Sync Blue Blue Blue GND (DDC Return) GND (DDC Return) GND (DDC Return) GND-R GND-R GND-R GND-G GND-G GND-G GND-B...

  • Page 36: Timing Chart

    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. Table 2-1 Timing Chart Mode VESA VGA1/70 Hz VGA3/60 Hz VGA2/70 Hz 640/72 Hz 800/60 Hz 640/75 Hz 800/56 Hz...
  • Page 37 CONFIDENTIAL 2 Product Specifications Table 2-1 Timing Chart Continued Mode VESA 640/67 Hz 832/75 Hz 1024/60Hz 1024/70Hz 1024/75Hz 800/72 Hz 800/75 Hz 1024x768 1024x768 1024x768 640 x 480 832 x 624 800 x 600 800 x 600 Timing fH (kHz) 35.000 49.726 48.077...

  • Page 38: 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 39 Samsung Electronics Co.,Ltd. 416, Maetan-3Dong, Paldal-Gu, Suwon City, Kyungki-Do, Korea. Printed in Korea P/N : BN81-00034C-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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