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Samsung SyncMaster 800TFT manual

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Table of contents for the manual

  • Page 1

    COLOR MONITOR SyncMaster 800TFT (T oshiba Panel) Manual SER VICE COLOR MONITOR CONTENTS 1. Precautions 2. Product Specifications 3. Disassembly & Reassembly 4. Alignments & Adjustments 5. T roubleshooting 6. Exploded View & Parts List 7. Electrical Parts List 8. Block Diagram 9. Wiring Diagram 10. Schematic Diagrams[...]

  • Page 2

    1-1-1 Warnings 1. For continued safety, do not attempt to modify the circuit board. 2. Disconnect the AC power and DC power jack before servicing. 1-1-2 Servicing the LCD Monitor 1. When servicing the LCD Monitor, Disconnect the AC line cord from the AC outlet. 2. It is essential that service technicians have an accurate voltage meter available at [...]

  • Page 3

    1-2-1 General Servicing Precautions 1. Always unplug the unit’s AC power cord from the AC power source and disconnect the DC power jack before attempting to: (a) remove or reinstall any component or assembly. (b) disconnect PCB plugs or connectors. (c) connect a test component in parallel with an electrolytic capacitor. 2. Some components are rai[...]

  • Page 4

    2 Product Specifications 2-1 Specifications LCD Panel TFT-LCD panel, RGB vertical stripe, normally white transmissive, 18-Inch viewable, 0.28 mm pixel pitch Scanning Frequency Horizontal : 30 kHz to 81 kHz (Automatic) Vertical : 56 Hz to 85 Hz (~XGA), 76 Hz (SXGA) Display Colors 16.7 Million colors Maximum Resolution Horizontal : 1280 Pixels @ 81 k[...]

  • Page 5

    2 Product Specifications 2-2 SyncMaster 800TFT 2-2 Pin Assignments Sync Type Pin No. 15-Pin D-Sub & 13W3 Signal Cable Connector Separate Composite 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Red Green Blue GND DDC Return (GND) GND-R GND-G GND-B No Connection Self Raster GND Bi-Dr Data (SDA) H-Sync V-Sync DDC Clock (SCL) Red Green Blue GND DDC Return (G[...]

  • Page 6

    2 Product Specifications SyncMaster 800TFT 2-3 QR S P O Video Sync Sync Horizontal Vertical CD E P O B A Video Sync Sync Separate Sync 2-3 T iming Chart This section of the service manual describes the timing that the computer industry recognizes as standard for computer-generated video signals. C D A O E B P Video Sync Sync Video Q R S A : Line ti[...]

  • Page 7

    2 Product Specifications 2-4 SyncMaster 800TFT Memo[...]

  • Page 8

    3-1-1 Removing the Stand 1. Remove 4 screws on the Stand. 3-1-2 Main Body Disassembly 1. Remove 4 screws on the Rear Cover. 2. Pull the Rear Cover up and off the monitor. 3. Remove 4 screws on the BRKT-VESA and Remove the BRKT-VESA. 4. Remove 16 screws on the PCB Shield and remove the Shield. 5. Remove 7 screws on the Main PCB and 2 screws on the I[...]

  • Page 9

    Memo 3 Disassembly and Reassembly 3-2 SyncMaster 800TFT[...]

  • Page 10

    SyncMaster 800TFT 4-1 4 Alignments and Adjustments This section of the service manual explains how to use the DDC JIG to adjust the black, red, green, and blue levels of the FPD when you replace the AD Board, and how to update the microprocessor when you change the Panel or Lamp(s). 4-1 Required Equipment The following equipment is necessary for ad[...]

  • Page 11

    4-2-1 Main Menu 4-2-1 (a) Service JIG : DV18 4-2-2 Sub Menu 4-2-2 (a) Panel Information No Label Definition No Label Definition 4 Alignments and Adjustments 4-2 SyncMaster 800TFT Monitor On Time Total hours that the monitor has been actively functioning. Panel Cycle The total number of times the Panel has been turned ON. Time Total in Hours that th[...]

  • Page 12

    4-2-3 Adjustment Procedures Use the following procedures whenever you replace the AD Board, Panel, or one or both of the Lamps. 4-2-3 (a) When Replacing the AD Board 1. Before replacing the AD Board, read all Panel information data by using the Read button on the DDC Control JIG. 2. Remove the old AD Board and replace it with a new board. 3. Perfor[...]

  • Page 13

    1. To display the Service Function OSD, push and hold in for 8 seconds the Left and Right arrow buttons on the front panel of the monitor. 2. If the Panel has been replaced during this servicing, use the Up or Down arrow button on the front panel to highlight the Panel row on the table. Increment the Change No. value by pushing and holding in (for [...]

  • Page 14

    4 Alignments and Adjustments SyncMaster 800TFT 4-5[...]

  • Page 15

    SyncMaster 800TFT 5-1 5 T roubleshooting Notes: 1. Before troubleshooting, set up the PC’s display as below. • Resolution: 1280 x 1024 • H-frequency: 64 kHz • V-frequency: 60 Hz 2. If no picture appears, confirm the power cord is correctly connected. 3. Check the following circuits. • No raster appears: Stand PCB, Main PCB • 12V develop[...]

  • Page 16

    5 Troubleshooting 5-2 SyncMaster 800TFT 5-2 No Video Check signal cable and connection. Check TFT-LCD panel and Inverter. Check IC201 and related circuit. Does the outpus signal appear at RA403 and R411 of IC406? (LDTGB, LVSYNCB, LHSYNCB, LCKBB) Is the output of Pins 1, 17 of IC501 High ? Yes No Yes No Does the analog video signal appear at R211, R[...]

  • Page 17

    5 Troubleshooting SyncMaster 800TFT 5-3 WA VEFORMS 4 CH1 RMS = 2.20V 5 CH1 RMS = 4.96V 6 CH1 RMS = 4.42V 8 CH1 RMS = 3.24V 9 CH1 RMS = 2.50V 2 CH1 RMS = 3.25V 3 CH1 RMS = 3.12V 7 CH1 RMS = 3.20V 10 CH1 RMS =960mV 1 CH1 RMS = 3.26V[...]

  • Page 18

    5 Troubleshooting 5-4 SyncMaster 800TFT Replace IC404. Yes No There is video but no OSD. 5-3 No OSD While pushing a front control button does any pulse appear at Pin 12 of IC404? WA VEFORMS Does input signal appear at the Pins 2, 5 and 10 of IC404? Check IC405 and related circuit. Check IC404 and related circuit. Yes No 11 12 13 11 CH1 RMS = 4.18V [...]

  • Page 19

    SyncMaster 800TFT 6-1 6 Exploded View and Parts List[...]

  • Page 20

    6 Exploded View & Parts List 6-2 SyncMaster 800TFT[...]

  • Page 21

    6 Exploded View & Parts List SyncMaster 800TFT 6-3[...]

  • Page 22

    6 Exploded View & Parts List 6-4 SyncMaster 800TFT Memo[...]

  • Page 23

    - BN91-00013X PROCESS-DV18MST(TSB) “DV18MST,DAVINCH(TSB),-,-” C101 2402-000176 “C-AL,SMD” “10uF,20%,16V,GP,TP,4.3x4.3x5.4” C102 2203-000257 “C-CERAMIC,CHIP” “10nF,10%,50V,X7R,TP,1608” C103 2203-000257 “C-CERAMIC,CHIP” “10nF,10%,50V,X7R,TP,1608” C104 2402-001044 “C-AL,SMD” “100uF,20%,25V,-,TP,8.3x8.3x6.3” C105 240[...]

  • Page 24

    C218 2203-000257 “C-CERAMIC,CHIP” “10nF,10%,50V,X7R,TP,1608” C219 2402-000176 “C-AL,SMD” “10uF,20%,16V,GP,TP,4.3x4.3x5.4” C222 2203-000257 “C-CERAMIC,CHIP” “10nF,10%,50V,X7R,TP,1608” C223 2402-000176 “C-AL,SMD” “10uF,20%,16V,GP,TP,4.3x4.3x5.4” C226 2203-005005 “C-CERAMIC,CHIP” “100nF,10%,16V,X7R,TP,1608” C230[...]

  • Page 25

    C325 2203-005005 “C-CERAMIC,CHIP” “100nF,10%,16V,X7R,TP,1608” C326 2203-005005 “C-CERAMIC,CHIP” “100nF,10%,16V,X7R,TP,1608” C327 2203-000257 “C-CERAMIC,CHIP” “10nF,10%,50V,X7R,TP,1608” C328 2203-005221 “C-CERAMIC,CHIP” “15nF,10%,50V,X7R,TP,1608,-” C329 2203-005221 “C-CERAMIC,CHIP” “15nF,10%,50V,X7R,TP,1608,-”[...]

  • Page 26

    C436 2203-000280 “C-CERAMIC,CHIP” “0.01nF,0.5pF,50V,NP0,TP,1608” C437 2203-000280 “C-CERAMIC,CHIP” “0.01nF,0.5pF,50V,NP0,TP,1608” C438 2203-000280 “C-CERAMIC,CHIP” “0.01nF,0.5pF,50V,NP0,TP,1608” C439 2203-000280 “C-CERAMIC,CHIP” “0.01nF,0.5pF,50V,NP0,TP,1608” C440 2203-005005 “C-CERAMIC,CHIP” “100nF,10%,16V,X7R[...]

  • Page 27

    C609 2203-000257 “C-CERAMIC,CHIP” “10nF,10%,50V,X7R,TP,1608” C610 2203-000257 “C-CERAMIC,CHIP” “10nF,10%,50V,X7R,TP,1608” C611 2203-000257 “C-CERAMIC,CHIP” “10nF,10%,50V,X7R,TP,1608” C612 2203-000257 “C-CERAMIC,CHIP” “10nF,10%,50V,X7R,TP,1608” C613 2203-000260 “C-CERAMIC,CHIP” “10nF,10%,50V,X7R,TP,2012” C620 [...]

  • Page 28

    CN102 3711-002050 CONNECTOR-HEADER “BOX,10P,1R,1.25mm,SMD-A,SN” CN301 3711-004070 CONNECTOR-HEADER “BOX,30P,1R,1.25mm,SMD-A,SN” D101 0402-001098 DIODE-RECTIFIER “SK34,40V,3.0A,SMC,TP” D102 0402-001098 DIODE-RECTIFIER “SK34,40V,3.0A,SMC,TP” D103 0401-001056 DIODE-SWITCHING “MMBD4148SE,75V,600mA,SOT-23,TP” D104 0401-001056 DIODE-S[...]

  • Page 29

    FT403 2901-001114 FILTER-EMI SMD “25VDC,2.0ADC,-,100nF,3.2x1.6x1” FT404 2901-001114 FILTER-EMI SMD “25VDC,2.0ADC,-,100nF,3.2x1.6x1” FT406 2901-001114 FILTER-EMI SMD “25VDC,2.0ADC,-,100nF,3.2x1.6x1” FT407 2901-001114 FILTER-EMI SMD “25VDC,2.0ADC,-,100nF,3.2x1.6x1” FT408 2901-001114 FILTER-EMI SMD “25VDC,2.0ADC,-,100nF,3.2x1.6x1” [...]

  • Page 30

    L105 2703-001778 INDUCTOR-SMD “3.3UH,20%,3.2X2.5X2.2MM” L107 BN27-20001A COIL-CHOKE L108 2703-001778 INDUCTOR-SMD “3.3UH,20%,3.2X2.5X2.2MM” L109 2703-001334 INDUCTOR-SMD “1.5uH,10%,2x1.25x0.85mm” L110 2703-001334 INDUCTOR-SMD “1.5uH,10%,2x1.25x0.85mm” L111 2703-001778 INDUCTOR-SMD “3.3UH,20%,3.2X2.5X2.2MM” L112 2703-001334 INDUC[...]

  • Page 31

    R108 2007-000090 R-CHIP “10Kohm,5%,1/16W,DA,TP,1608” R201 2007-000113 R-CHIP “33ohm,5%,1/16W,DA,TP,1608” R202 2007-000113 R-CHIP “33ohm,5%,1/16W,DA,TP,1608” R203 2007-001167 R-CHIP “75ohm,5%,1/16W,DA,TP,1608” R204 2007-000113 R-CHIP “33ohm,5%,1/16W,DA,TP,1608” R205 2007-001167 R-CHIP “75ohm,5%,1/16W,DA,TP,1608” R206 2007-000[...]

  • Page 32

    R311 2007-000071 R-CHIP “22ohm,5%,1/16W,DA,TP,1608” R312 2007-000080 R-CHIP “2Kohm,5%,1/16W,DA,TP,1608” R313 2007-000080 R-CHIP “2Kohm,5%,1/16W,DA,TP,1608” R316 2007-000090 R-CHIP “10Kohm,5%,1/16W,DA,TP,1608” R317 2007-000090 R-CHIP “10Kohm,5%,1/16W,DA,TP,1608” R343 2007-000090 R-CHIP “10Kohm,5%,1/16W,DA,TP,1608” R401 2007-0[...]

  • Page 33

    R519 2007-000074 R-CHIP “100ohm,5%,1/16W,DA,TP,1608” R520 2007-000084 R-CHIP “4.7Kohm,5%,1/16W,DA,TP,1608” R521 2007-000084 R-CHIP “4.7Kohm,5%,1/16W,DA,TP,1608” R522 2007-000084 R-CHIP “4.7Kohm,5%,1/16W,DA,TP,1608” R523 2007-000084 R-CHIP “4.7Kohm,5%,1/16W,DA,TP,1608” R524 2007-000074 R-CHIP “100ohm,5%,1/16W,DA,TP,1608” R525[...]

  • Page 34

    R606 2007-000084 R-CHIP “4.7Kohm,5%,1/16W,DA,TP,1608” R607 2007-000074 R-CHIP “100ohm,5%,1/16W,DA,TP,1608” R609 2007-000072 R-CHIP “47ohm,5%,1/16W,DA,TP,1608” R610 2007-000072 R-CHIP “47ohm,5%,1/16W,DA,TP,1608” R611 2007-000072 R-CHIP “47ohm,5%,1/16W,DA,TP,1608” R612 2007-000072 R-CHIP “47ohm,5%,1/16W,DA,TP,1608” R613 2007-0[...]

  • Page 35

    RA412 2011-000002 R-NETWORK “22ohm,5%,63mW,L,CHIP,8P,TP” RA413 2011-000002 R-NETWORK “22ohm,5%,63mW,L,CHIP,8P,TP” RA414 2011-000002 R-NETWORK “22ohm,5%,63mW,L,CHIP,8P,TP” RA415 2011-000002 R-NETWORK “22ohm,5%,63mW,L,CHIP,8P,TP” RA416 2011-000002 R-NETWORK “22ohm,5%,63mW,L,CHIP,8P,TP” RA417 2011-000002 R-NETWORK “22ohm,5%,63mW,[...]

  • Page 36

    8 Block Diagram SyncMaster 800TFT 8-1 D'SUB V ideo Switch (IC201) ADC/ Pre-AMP/PLL (IC300) Scaling Engine (IC406) Video1 13W3 Video2 OSD (IC404) Sync Separator (U8) OSD Control OSD Signal R G B DC_DC DC 12V dVsync H-Sync SOG V H DC 5V R_digital G_digital B_digital R_digital G_digital B_digital H_sync V_sync Data Enable Dot CLK LVDS signal R/G/[...]

  • Page 37

    8 Block Diagrams 8-2 SyncMaster 800TFT Memo[...]

  • Page 38

    SyncMaster 800TFT 9-1 9 Wiring Diagram 1 2 3 4 5 6 7 8 9 12V_BL 12V_BL 12V_BL GND GND BL_ON BL_ON GND BL_CNT BL_CNT NC NC CN103 1 2 3 4 5 6 7 8 9 12V_BL GND GND GND 12V_BL 12V_BL CN1 VDD VDD VDD GND GND GND VSELLVDS VcontlN DGND RxOIN3+ RxOIN3- RxOCLKIN+ RxOCLKIN- RxOIN2+ RxOIN2- RxOIN1+ 1 2 3 4 CN301 CN201 1 2 3 4 5 6 7 8 9 10 RED BLUE GREEN GND G[...]

  • Page 39

    9 Wiring Diagram 9-2 SyncMaster 800TFT Memo[...]

  • Page 40

    10-1 SyncMaster 800TFT 10 Schematic Diagrams 10-1 Signal input Part Schematic Diagram 5 6 5 CH1 RMS = 4.96V 6 CH1 RMS = 4.42V[...]

  • Page 41

    10 Schematic Diagrams SyncMaster 800TFT 10-2 10-2 Scaler Chip Part Schematic Diagram 11 12 13 2 3 1 4 4 CH1 RMS = 2.20V 2 CH1 RMS = 3.25V 3 CH1 RMS = 3.12V 1 CH1 RMS = 3.26V 11 CH1 RMS = 4.18V 13 CH1 RMS = 3.26V 12 CH1 RMS = 3.26V[...]

  • Page 42

    10 Schematic Diagrams 10-3 SyncMaster 800TFT 10-3 Power input Part & LCD panel interface part Schematic Diagram[...]

  • Page 43

    10 Schematic Diagrams SyncMaster 800TFT 10-4 10-4 Micom Part Schematic Diagram[...]

  • Page 44

    10 Schematic Diagrams 10-5 SyncMaster 800TFT 8 7 9 10 10-5 A/D converter Part Schematic Diagram 8 CH1 RMS = 3.24V 7 CH1 RMS = 3.20V 10 CH1 RMS = 3.24V 9 CH1 RMS = 3.20V[...]

  • Page 45

    Samsung Electronics Co., Ltd. May 2000 Printed in Korea P/N : BN68-00049R-01[...]

  • Page 46

    SyncMaster 800TFT 6-1 6 Exploded View and Parts List[...]

  • Page 47

    6 Exploded View & Parts List 6-2 SyncMaster 800TFT[...]

  • Page 48

    6 Exploded View & Parts List SyncMaster 800TFT 6-3[...]

  • Page 49

    6 Exploded View & Parts List 6-4 SyncMaster 800TFT Memo[...]

  • Page 50

    10-1 SyncMaster 800TFT 10 Schematic Diagrams 10-1 Signal input Part Schematic Diagram 5 6 5 CH1 RMS = 4.96V 6 CH1 RMS = 4.42V[...]

  • Page 51

    10 Schematic Diagrams SyncMaster 800TFT 10-2 10-2 Scaler Chip Part Schematic Diagram 11 12 13 2 3 1 4 4 CH1 RMS = 2.20V 2 CH1 RMS = 3.25V 3 CH1 RMS = 3.12V 1 CH1 RMS = 3.26V 11 CH1 RMS = 4.18V 13 CH1 RMS = 3.26V 12 CH1 RMS = 3.26V[...]

  • Page 52

    10 Schematic Diagrams 10-3 SyncMaster 800TFT 10-3 Power input Part & LCD panel interface part Schematic Diagram[...]

  • Page 53

    10 Schematic Diagrams SyncMaster 800TFT 10-4 10-4 Micom Part Schematic Diagram[...]

  • Page 54

    10 Schematic Diagrams 10-5 SyncMaster 800TFT 8 7 9 10 10-5 A/D converter Part Schematic Diagram 8 CH1 RMS = 3.24V 7 CH1 RMS = 3.20V 10 CH1 RMS = 3.24V 9 CH1 RMS = 3.20V[...]