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Samsung 910N Service Manual
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Samsung 910N Service Manual

Tft-lcd monitor
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Table of Contents

See also: User Manual , Manual Del Usuario
SERVICE
TFT-LCD MONITOR
Simple Stand
Pivot Stand
TFT-LCD MONITOR
Chassis
Model
MJ15AS*
510N
MJ15BS*
510T
MJ17AS*
710N
MJ17BS*
710T
MJ19AS*
910N
MJ19BS*
910T
Manual
10. PCB Layout
12. Panel Description
CONTENTS

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Summary of Contents for Samsung 910N

  • Page 1: Table Of Contents

    Chassis Model MJ15AS* 510N MJ15BS* 510T MJ17AS* 710N MJ17BS* 710T MJ19AS* 910N MJ19BS* 910T Manual CONTENTS 1. Precautions 2. Product Specifications 3. Disassembly & Reassembly 4. Alignments & Adjustments 5. Troubleshooting 6. Exploded View & Parts List 7. Electrical Parts List 8.
  • Page 2 ❈ This Service Manual is a property of Samsung Electronics Co., Ltd. Any unauthorized use of Manual can be punished under applicable International and/or domestic law. Samsung Electronics Co.,Ltd. 416, Maetan-3Dong, Yeongtong-Gu, Suwon City, Kyungki-Do, Korea,443-742 Printed in Korea P/N : BN82-00087S-00 http://itself.sec.samsung.co.kr...

  • Page 3: 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 circuit board. Disconnect the AC power and DC power jack before servicing.

  • Page 4: 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 5: Product Specifications

    2 Product Specifications 2-1 MJ15AS*/MJ15BS*/MJ17AS*/MJ17BS* Specifications Item LCD Panel TFT-LCD panel, RGB vertical stripe, normally black transmissive, 15-Inch viewable, 0.297 (H) x 0.297 (V) mm pixel pitch Scanning Frequency Horizontal : 31 kHz ~ 61 kHz (Automatic) Vertical : 50 Hz ~ 75 Hz Display Colors 16.2 Million colors Maximum Resolution...
  • Page 6 2 Product Specifications 2-2 MJ19AS*/MJ19BS* Specifications Item LCD Panel TFT-LCD panel, RGB vertical stripe, normally black transmissive, 19-Inch viewable, 0.297 (H) x 0.297 (V) mm pixel pitch Scanning Frequency Horizontal : 31 kHz ~ 61 kHz (Automatic) Vertical : 55 Hz ~ 76 Hz Display Colors 16.2 Million colors Maximum Resolution...

  • Page 7: Pin Assignments

    2 Product Specifications 2-3 Pin Assignments Sync Type Separate Pin No. Green Blue DDC Return (GND) GND-R GND-G GND-B DDC Power Input (+5V) Self Raster Bi-Dr Data (SDA) H-Sync. V-Sync. DDC Clock (SCL) Sync Type Pin No. Rx2- Rx2+ No Connection No Connection DDC Clock (SCL) DDC Data (SDA)

  • Page 8: Timing Chart

    2 Product Specifications 2-4 Timing Chart This section of the service manual describes the timing that the computer industry recognizes as standard for computer-generated video signals. Mode VGA2/ VGA3/ 70 Hz 60 Hz Timing 720 x 400 640 x 480 fH (kHz) 31.469 31.469...

  • Page 9: Disassembly & Reassembly

    3 Disassembly and Reassembly This section of the service manual describes the disassembly and reassembly procedures for the MJ15AS*/MJ17AS*/MJ19AS*/MJ15BS*/MJ17BS*/MJ19BS* TFT-LCD 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 10 3 Disassembly and Reassembly 3-2 Reassembly Reassembly procedures are in the reverse order of disassembly procedures. 6. Remove 7 screws, 4 hexa screws from the boards and lift up the boards. Caution : When repairing panel only, disconnect just LVDS cable, Panel-Lamp / Wire marked in circle in the picture without removing the screws on board in order to lift the board up.

  • Page 11: Alignments & Adjustments

    4 Alignments and Adjustments This section of the service manual explains how to use the RS232 JIG. This function is needed for AD board change and program memory (IC110) change. 4-1 Required Equipment The following equipment is necessary for adjusting the monitor: •...

  • Page 12: Service Function Spec

    4 Alignments and Adjustments 4-6 Service Function Spec. 4-6-1 How to Display Service Function OSD 1. The value for brightness and contrast should be changed to zero. 2. Within 5 seconds, press the 3. Service function OSD will be displayed. ❇...
  • Page 13 4 Alignments and Adjustments 4-6-3 How to Control Service Function OSD •After change the panel or lamp, you must reset service function OSD. •The case of panel change After changeing the panel, press the menu key within 5 seconds,. Then, panel Ch. No increases one step and the panel time information is reset to zero. Simultaneously, other information is reset to zero (Upper/Lower lamp, Panel cycle).
  • Page 14 4 Alignments and Adjustments Memo MJ15AS*/MJ17AS*/MJ19AS*/ MJ15BS*/MJ17BS*/MJ19BS*...

  • Page 15: Troubleshooting

    5 Troubleshooting Notes: 1. Before troubleshooting, setup the PC’s display as below. • Resolution: 1024 x 768 • H-frequency: 61 kHz • V-frequency: 75 Hz 2. If no picture appears, make sure the power cord is correctly connected. 3. Check the following circuits. •...
  • Page 16 5 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 17 5 Troubleshooting 5-2-1 No Video (ANALOG) Check signal cable connection and power. X400 oscillate properly? Is there R, G, B input at R100, R101 and R103? Is there Hsync, Vsync waveform at Pin 100, 1 of IC 400? Is there Hsync, Vsync waveform at Pin 43, 44 of IC 200? Does the output signal appear at Pin 17~20, 22~27 of CN400?
  • Page 18 5 Troubleshooting WAVEFORMS MJ15AS*/MJ17AS*/MJ19AS*/ MJ15BS*/MJ17BS*/MJ19BS*...

  • Page 19: No Video (Digital)

    5 Troubleshooting 5-2-2 No Video (DIGITAL) Check signal cable connection and power. X400 oscillate properly? Is there R, G, B input at R110, R112, R114, R111, R113 and R115? Is there waveform at R11, R117? Does the output signal appear at Pin 17~20, 22~27 of CN400? There are DC 5V at Pin 1, 2 and 3 of CN400?
  • Page 20 5 Troubleshooting WAVEFORMS MJ15AS*/MJ17AS*/MJ19AS*/ MJ15BS*/MJ17BS*/MJ19BS*...
  • Page 21 6 Exploded View and Parts List ❈ You can search for updated part codes through ITSELF web site. URL : http://itself. sec. samsung.co.kr 6-1 MJ15AS* MJ15AS*/MJ17AS*/MJ19AS*/ MJ15BS*/MJ17BS*/MJ19BS*...

  • Page 22: Exploded View & Parts List

    6 Exploded View & Parts List 6-2 MJ15BS* MJ15AS*/MJ17AS*/MJ19AS*/ MJ15BS*/MJ17BS*/MJ19BS*...
  • Page 23 6 Exploded View & Parts List 6-3 MJ17AS* MJ15AS*/MJ17AS*/MJ19AS*/ MJ15BS*/MJ17BS*/MJ19BS*...
  • Page 24 6 Exploded View & Parts List 6-4 MJ17BS* MJ15AS*/MJ17AS*/MJ19AS*/ MJ15BS*/MJ17BS*/MJ19BS*...
  • Page 25 6 Exploded View & Parts List 6-5 MJ19AS* MJ15AS*/MJ17AS*/MJ19AS*/ MJ15BS*/MJ17BS*/MJ19BS*...
  • Page 26 6 Exploded View & Parts List 6-6 MJ19BS* MJ15AS*/MJ17AS*/MJ19AS*/ MJ15BS*/MJ17BS*/MJ19BS*...

  • Page 27: Electrical Parts List

    7 Electrical Parts List ❈ You can search for updated part codes through ITSELF web site. URL : http://itself.sec.samsung.co.kr/ 7-1-1 MJ15AS* Main PCB Parts Level Loc. No. Code No. MJ15AS E27-MJ15AS BN94-00527D 0204-002420 CIS3 0204-002426 CIS4 3701-001219 CN101 3711-004712 CN600 6003-000117 IP/PCB+BRKT/PCB 6003-000117...
  • Page 28 7 Electrical Parts List Level Loc. No. CodeNo. 2203-005005 C423 2203-005005 C424 2203-005065 C603 2203-005005 C604 2203-005005 C605 2203-005065 C606 2402-001042 C607 2203-005005 C608 2402-001042 C609 2203-005005 C610 2402-001042 C611 2402-001042 C612 3711-005543 CN200 3711-005470 CN400 0403-001411 D100 0401-001056 D101 0401-001056 D103 0401-001056...
  • Page 29 Level Loc. No. Code No. 2007-000074 R237 R-CHIP 2007-000084 R238 R-CHIP 2007-000074 R239 R-CHIP 2007-000074 R240 R-CHIP 2007-000078 R241 R-CHIP 2007-000074 R242 R-CHIP 2007-000077 R243 R-CHIP 2007-000090 R244 R-CHIP 2007-000074 R247 R-CHIP 2007-000090 R400 R-CHIP 2007-000090 R401 R-CHIP 2007-000078 R402 R-CHIP 2007-000821 R403...
  • Page 30 7 Electrical Parts List 7-1-2 MJ15AS* Others Level Loc. No. Code No. BN91-00785H 0203-001598 6001-000125 SH/COV+PAN 6003-000117 SH/COV+BRKT/PCB BN39-00244A BN39-00507A BN39-00523B BN96-01058A BN92-00709A BN68-00614A LABEL BN92-00809Q BN96-01108A ACCESSORY 6003-001185 STAND/BASE 6009-001442 STAND/BASE 6902-000110 STAND/BASE 6902-000336 STAND/BASE BH68-20366B STAND/BASE BN61-00048A STAND/BASE BN61-00821A STAND/BASE BN61-00824A...
  • Page 31 Level Loc. No. Code No. 3711-004712 CN600 CONNECTOR-HEADER 6003-000117 IP/PCB+BRKT/PCB SCREW-TAPTITE 6003-000117 M/PCB+BRKT/PCB SCREW-TAPTITE BN97-00354K MICOM ASSY MICOM 0903-001347 IC200 IC-MICROCONTROLLER BN82-00114L A/S MICOM BN97-00358S ASSY SMD 3301-000314 BD100 BEAD-SMD 3301-000314 BD101 BEAD-SMD 3301-000314 BD102 BEAD-SMD 3301-000314 BD103 BEAD-SMD 3301-000314 BD104 BEAD-SMD 3301-000314...
  • Page 32 7 Electrical Parts List Level Loc. No. Code No. 0401-001056 D101 0401-001056 D103 0401-001056 D105 0402-001080 D600 3301-001145 FT600 0406-001061 IC106 1103-001023 IC201 1003-001674 IC400 0505-001772 IC600 1203-003209 IC601 BN41-00412A MP1.0 0501-002080 Q601 2007-000821 R106 2007-001164 R107 2007-001164 R108 2007-001164 R109 2007-001164 R118...
  • Page 33 Level Loc. No. Code No. 2007-000090 R600 R-CHIP 2007-000090 R602 R-CHIP 2007-000074 R603 R-CHIP 2007-000090 R604 R-CHIP 2801-003773 X400 CRYSTAL-SMD 0403-001411 ZD100 DIODE-ZENER 0403-001411 ZD101 DIODE-ZENER 0403-001411 ZD102 DIODE-ZENER 0403-001411 ZD103 DIODE-ZENER 0403-001411 ZD104 DIODE-ZENER 0403-001411 ZD200 DIODE-ZENER 7-2-2 MJ17AS* Others Level Loc.
  • Page 34 7 Electrical Parts List Level Loc. No. Code No. BH69-40321A BN68-00129A BN69-00123L BN69-00140T BN69-00617K BN69-00741A BN92-01052V BN96-01192V UNIT/ACCESSORY 0203-000214 ACCESSORY 3903-000085 ACCESSORY 6902-000110 ACCESSORY AA68-40065B ACCESSORY BH68-00261F ACCESSORY BH68-00261R ACCESSORY BH68-00344C ACCESSORY BN59-00048A ACCESSORY BN96-01171A ACCESSORY BH68-00376L BN59-00420A BN92-01057Y BH68-00530E BN69-00806E E29-MJ17ASAB 7-3-1 MJ19AS* Main PCB Parts...
  • Page 35 Level Loc. No. Code No. 2203-005005 C114 C-CER,CHIP 2203-000236 C116 C-CER,CHIP 2203-000998 C117 C-CER,CHIP 2203-005005 C200 C-CER,CHIP 2203-005437 C201 C-CER,CHIP 2203-005005 C203 C-CER,CHIP 2203-005437 C205 C-CER,CHIP 2203-005065 C206 C-CER,CHIP 2203-000257 C221 C-CER,CHIP 2203-000257 C222 C-CER,CHIP 2203-000189 C224 C-CER,CHIP 2203-005005 C400 C-CER,CHIP 2402-001042 C401...
  • Page 36 7 Electrical Parts List Level Loc. No. Code No. 2007-000113 R138 2007-000113 R139 2007-000070 R200 2007-000090 R202 2007-000090 R203 2007-000084 R204 2007-000084 R205 2007-000084 R206 2007-000084 R207 2007-000084 R208 2007-000084 R209 2007-000084 R210 2007-000084 R211 2007-000084 R212 2007-000090 R214 2007-000084 R216 2007-000084 R217...
  • Page 37 7-3-2 MJ19AS* Others Level Loc. No. Code No. BN90-00329T BN96-01193B BN90-00641D 6003-000337 C/R+STD BN96-01055B BN61-00377A BN63-01215B BN90-00642Q 6003-001086 C/F+C/R BN96-01057F BN61-01243A BN63-01214C BN64-00288C BN67-00120A BN96-01111A BN91-00403C BN07-00128A BN91-00784T BN44-00113A BN61-01103A BN91-00785C 0203-001598 BN39-00244A BN39-00506A BN39-00523C BN61-01234A 6003-000117 SH/COV+BRKT/PCB 6003-000276 SH/COV+C/F 6001-000364 SH/COV+PAN BN96-01060A...
  • Page 38 7 Electrical Parts List 7-4 MJ15BS*/MJ17BS*/MJ19BS* Different Circuit Part List Loc. No Code C111 2203-001402 C-CERAMIC,CHIP C113 2203-001402 C-CERAMIC,CHIP C119 2203-001402 C-CERAMIC,CHIP C120 2203-001402 C-CERAMIC,CHIP C123 2203-001402 C-CERAMIC,CHIP C125 2203-001402 C-CERAMIC,CHIP C126 2203-005005 C-CERAMIC,CHIP C127 2203-001402 C-CERAMIC,CHIP C128 2203-001402 C-CERAMIC,CHIP CN102 3701-001173 CONNECTOR-DSUB...

  • Page 39: Block Diagram

    8 Block Diagram 8-1 MJ15AS*/MJ17AS*/MJ19AS* ANALOG Block Diagram MJ15AS*/MJ17AS*/MJ19AS*/ MJ15BS*/MJ17BS*/MJ19BS*...
  • Page 40 8 Block Diagrams 8-2 MJ15BS*/MJ17BS*/MJ19BS* DIGITAL Block Diagram MJ15AS*/MJ17AS*/MJ19AS*/ MJ15BS*/MJ17BS*/MJ19BS*...
  • Page 41 10 PCB Layout 10-1 MJ15AS* ANALOG PCB MJ15AS*/MJ17AS*/MJ19AS*/ MJ15BS*/MJ17BS*/MJ19BS* Loc. No. Description DIODE D100 DIODE-ZENER 60.5 16.0 D101 DIODE-SWITCHING 78.3 12.3 D103 DIODE-SWITCHING 73.6 12.2 D105 DIODE-SWITCHING 68.0 12.4 D600 DIODE-RECTIFIER 10.5 46.1 ZD200 DIODE-ZENER 107.1 11.3 ZD600 DIODE-ZENER 17.1 69.6 IC105 DIODE-TVS...
  • Page 42 10 PCB Layout 10-2 MJ15BS* DIGITAL PCB 10-2 Loc. No. Description DIODE D100 DIODE-ZENER 60.5 16.0 D101 DIODE-SWITCHING 78.3 12.3 D102 DIODE-SWITCHING 43.4 14.0 D103 DIODE-SWITCHING 73.6 12.2 D104 DIODE-SWITCHING 43.3 19.6 D105 DIODE-SWITCHING 68.0 12.4 D106 DIODE-SWITCHING 37.1 19.9 D107 DIODE-SWITCHING 31.0...
  • Page 43 10 PCB Layout 10-3 MJ17AS*/MJ19AS* ANALOG PCB MJ15AS*/MJ17AS*/MJ19AS*/ MJ15BS*/MJ17BS*/MJ19BS* Loc. No. Description DIODE D100 DIODE-ZENER 60.5 16.0 D101 DIODE-SWITCHING 78.3 12.3 D103 DIODE-SWITCHING 73.6 12.2 D105 DIODE-SWITCHING 68.0 12.4 D600 DIODE-RECTIFIER 10.5 46.1 ZD200 DIODE-ZENER 107.1 11.3 ZD600 DIODE-ZENER 17.1 69.6 IC105 DIODE-TVS...
  • Page 44 10 PCB Layout 10-4 MJ17BS*/MJ19BS* DIGITAL PCB 10-4 Loc. No. Description DIODE D100 DIODE-ZENER 60.5 16.0 D101 DIODE-SWITCHING 78.3 12.3 D102 DIODE-SWITCHING 43.4 14.0 D103 DIODE-SWITCHING 73.6 12.2 D104 DIODE-SWITCHING 43.3 19.6 D105 DIODE-SWITCHING 68.0 12.4 D106 DIODE-SWITCHING 37.1 19.9 D107 DIODE-SWITCHING 31.0...

  • Page 45: Wiring Diagram

    9 Wiring Diagram +14V CN600 +14V ADJ_BL BL_EN CN102 MJ15AS*/MJ17AS*/MJ19AS*/ MJ15BS*/MJ17BS*/MJ19BS* CN400 CN101 CN200...
  • Page 46 9 Wiring Diagram Memo MJ15AS*/MJ17AS*/MJ19AS*/ MJ15BS*/MJ17BS*/MJ19BS*...

  • Page 47: Schematic Diagrams

    11 Schematic Diagrams ❈ This Document can not be used without Samsung’s authorization. Vcc_PANEL_IN 15" : +3.3V In 17"/19" : +5V In GOYA 2 M/M Only (Option) +14V_IN R600 AUDIO_EN C600 IC600 Q600 SUPLECODE 2SC2412K-Q D1 8 D1_1 R601 D2_1 R602 C603 1/16W...
  • Page 48 11 Schematic Diagrams 11-2 MJ15AS*/MJ17AS*/MJ19AS*/ MJ15BS*/MJ17BS*/MJ19BS*...

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