Samsung 770TFT - SyncMaster 770 TFT Service Manual

COLOR MONITORSyncMaster 770TFTManualSERVICECOLOR MONITOR CONTENTSEXIT MENUAUTO EXITABMENUAUTO1. Precautions2. Product Specifications3. Disassembly &am

3 Disassembly and Reassembly3-2 SyncMaster 770TFTMemo

SyncMaster 770TFT 4-14 Alignments and AdjustmentsThis section of the service manual explains how to use the DDC JIG to adjust the black, red, green, a

4-2-1 Main Menu4-2-1 (a) Service JIG : DV174-2-2 Sub Menu4-2-2 (a) Panel InformationNo Label DefinitionNo Label Definition4 Alignments and Adjustme

4-2-3 Adjustment ProceduresUse the following procedures whenever youreplace the AD Board, Panel, or one or both of theLamps.4-2-3 (a) When Replacing t

Memo4 Alignments and Adjustments4-4 SyncMaster 770TFT

SyncMaster 770TFT 5-15 TroubleshootingNotes: 1. Before troubleshooting, setup the PC’s display as below.• Resolution: 1280 x 1024• H-frequency: 64 kHz

5 Troubleshooting5-2 SyncMaster 770TFT5-2 No Video Check signal cable and connection.Check IC201 and related cirmit.Does the input signal appear at P

5 TroubleshootingSyncMaster 770TFT 5-3WAVEFORMS2CH1 RMS = 3.25V3CH1 RMS = 3.12V4CH1 RMS = 2.20V5CH1 RMS = 4.96V6CH1 RMS = 4.42V17CH1 RMS = 3.08V18CH1

5 Troubleshooting5-4 SyncMaster 770TFTReplace IC404.YesNoThere is video but no OSD.5-3 No OSD While pushing a front controlbutton does any pulse appea

SyncMaster 770TFT 6-16 Exploded View and Parts List

Samsung Electronics Co., Ltd. September 1999Printed in KoreaCode No.: BN68-00097A

6 Exploded View & Parts List6-2 SyncMaster 770TFTMemo

C101 2402-000176 C-AL,SMD 10uF,20%,16V,GP,TP,4.3x4.3x5.4C102 2203-000257 C-CERAMIC,CHIP 10nF,10%,50V,X7R,TP,1608C103 2203-000257 C-CERAMIC,CHIP 10nF,1

C222 2203-000257 C-CERAMIC,CHIP 10nF,10%,50V,X7R,TP,1608C223 2402-000176 C-AL,SMD 10uF,20%,16V,GP,TP,4.3x4.3x5.4C226 2203-005005 C-CERAMIC,CHIP 100nF,

C327 2203-000257 C-CERAMIC,CHIP 10nF,10%,50V,X7R,TP,1608C328 2203-000257 C-CERAMIC,CHIP 10nF,10%,50V,X7R,TP,1608C329 2203-000257 C-CERAMIC,CHIP 10nF,1

C436 2203-000292 C-CERAMIC,CHIP 10pF,5%,50V,NPO,TP,1608C437 2203-000292 C-CERAMIC,CHIP 10pF,5%,50V,NPO,TP,1608C438 2203-000292 C-CERAMIC,CHIP 10pF,5%,

C608 2203-005005 C-CERAMIC,CHIP 100nF,15%,16V,W5R,TP,1608,1.6mC609 2203-005005 C-CERAMIC,CHIP 100nF,15%,16V,W5R,TP,1608,1.6mC610 2404-000123 C-TA,CHIP

CN202 3701-001137 CONNECTOR-DSUB 10P+3P,2R,FEMALE,ANGLE,AUFCN601 3711-004130 CONNECTOR-HEADER BOX,31P,2R,0.625mm,SMD-A,AUFCN602 3711-003942 CONNECTOR-

FT501 2901-001114 FILTER-EMI SMD 25VDC,2.0ADC,100nF,3.2x1.6x1FT502 2901-001114 FILTER-EMI SMD 25VDC,2.0ADC,100nF,3.2x1.6x1FT503 2901-001114 FILTER-EMI

L115 2703-001334 INDUCTOR-SMD 1.5uH,10%,2x1.25x0.85mmL116 2703-001334 INDUCTOR-SMD 1.5uH,10%,2x1.25x0.85mmL117 2703-001334 INDUCTOR-SMD 1.5uH,10%,2x1.

R207 2007-001167 R-CHIP 75ohm,5%,1/16W,DA,TP,1608R208 2007-000113 R-CHIP 33ohm,5%,1/16W,DA,TP,1608R209 2007-001167 R-CHIP 75ohm,5%,1/16W,DA,TP,1608R21

1-1-1 Warnings1. For continued safety, do not attempt to modify thecircuit board.2. Disconnect the AC power and DC power jackbefore servicing.1-1-2

R307 2007-000090 R-CHIP 10Kohm,5%,1/16W,DA,TP,1608R310 2007-000071 R-CHIP 22ohm,5%,1/16W,DA,TP,1608R311 2007-000071 R-CHIP 22ohm,5%,1/16W,DA,TP,1608R3

R515 2007-000074 R-CHIP 100ohm,5%,1/16W,DA,TP,1608R516 2007-000074 R-CHIP 100ohm,5%,1/16W,DA,TP,1608R517 2007-000074 R-CHIP 100ohm,5%,1/16W,DA,TP,1608

RA303 2011-000002 R-NETWORK 22ohm,5%,1/16W,L,CHIP,8P,STRA304 2011-000002 R-NETWORK 22ohm,5%,1/16W,L,CHIP,8P,STRA305 2011-000002 R-NETWORK 22ohm,5%,1/1

CN1 3711-002050 CONNECTOR-HEADER BOX,10P,1R,1.25mm,SMD-A,SNOP4 0601-001036 LED ROUND,GRN/YEL,4.75mm,565/585nmOP5 0601-001036 LED ROUND,GRN/YEL,4.75mm,

7 Electrical Parts List7-14 SyncMaster 770TFTLCD BN07-10001D LCD LT17OX2-131, 404*322.5*25,IPSPROCESS-PBA UNIT BN94-00022B ASS’Y PCB DV17MSSS/CABLE BN

8 Block DiagramSyncMaster 770TFT 8-1D'SUBVideoSwitch(IC201)ADC/Pre-AMP/PLL(IC300)ScalingEngine(IC406)Video113W3Video2OSD(IC404)Sync Separator(U8)

8 Block Diagrams8-2 SyncMaster 770TFTMemo

SyncMaster 770TFT 9-19 Wiring Diagram121110123456789GNDGNDBL_CNTBL_ONGNDGNDGND14V_BL+5VGND14V_BL14V_BLCN103121110123456789GNDGNDBL_CNTBL_ONGNDGNDGND14

9 Wiring Diagram9-2 SyncMaster 770TFTMemo

10-1 SyncMaster 770TFT10 Schematic Diagrams10-1 Signal Input Part Schematic Diagram

1-2-1 General Servicing Precautions1. Always unplug the unit’s AC power cord from theAC power source and disconnect the DC PowerJack before attemptin

10 Schematic DiagramsSyncMaster 770TFT 10-210-2 Scaler Chip Part Schematic Diagram12111411CH1 RMS = 4.18V12CH1 RMS = 3.26V14CH1 RMS = 4.7V

10 Schematic Diagrams10-3 SyncMaster 770TFT41231516171810-3 Power input Part Schematic Diagram2CH1 RMS = 3.25V15CH1 RMS = 3.08V16CH1 RMS = 3.08V17CH1

10 Schematic DiagramsSyncMaster 770TFT 10-410-4 Micom Part Schematic Diagram

10 Schematic Diagrams10-5 SyncMaster 770TFT7891010-5 A/D Converter Part Schematic Diagram8CH1 RMS = 3.24V7CH1 RMS = 3.20V10CH1 RMS = 960mV9CH1 RMS = 2

2 Product Specifications2-1 SpecificationsLCD Panel TFT-LCD panel, RGB vertical stripe, normally black transmissive, 17-Inch viewable, 0.264 (H) x 0.2

2 Product Specifications2-2 SyncMaster 770TFT2-2 Pin AssignmentsSyncTypePin No.15-Pin D-Sub & 13W3 Signal Cable ConnectorSeparate Composite1234567

2 Product SpecificationsSyncMaster 770TFT 2-3QRSPOVideoSyncSyncHorizontalVerticalCDEPOBAVideoSyncSyncSeparate Sync2-3 Timing ChartThis section of the

2 Product Specifications2-4 SyncMaster 770TFTMemo

3-1-1 Removing the Stand1. With a pad beneath it, stand the monitor on itsfront with the screen facing downward andthe base close to you. Make sure no