Sierra Wireless 800TFT specifications No OSD, Waveforms

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5 Troubleshooting

5-3 No OSD

There is video but no OSD.

Does input signal appear

1112 13 at the Pins 2, 5 and

10 of IC404?

Yes

While pushing a front control button does any pulse appear at Pin 12 of IC404?

Yes

Replace IC404.

No

No

Check IC405 and related circuit.

Check IC404 and related circuit.

WAVEFORMS

11

CH1 RMS = 4.18V

12

CH1 RMS = 3.26V

13

CH1 RMS = 3.26V

5-4	SyncMaster 800TFT

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Contents Color Monitor Precautions Safety PrecautionsServicing Precautions Electrostatically Sensitive Devices ESD PrecautionsProduct Specifications SpecificationsPin Assignments Type Pin No 13W3 Separate CompositeTiming Chart IBM VesaMemo Disassembly and Reassembly DisassemblyReassembly Disassembly and Reassembly Alignments and Adjustments Using the DDC Control JIGRequired Equipment Main Menu Sub Menu Adjustment Procedures Using the OSD Service function Service Function Menu ScreenAlignments and Adjustments SyncMaster 800TFT Troubleshooting No PowerNo Video AD-SDA, AD-SCLWaveforms No OSD WaveformsExploded View and Parts List Exploded View & Parts List Exploded View & Parts List SyncMaster 800TFT Memo Electrical Parts List Main PCB PartsElectrical Parts List Remarks C436 CIS CN102 FILTER-EMI SMD Chip Electrical Parts List R311 Electrical Parts List Chip Network RA412 RA413 RA414 RA415 RA416 RA417 RA418 X401 X501 Video Switch Block DiagramBlock Diagrams Wiring Diagram Memo Schematic Diagrams Signal input Part Schematic DiagramScaler Chip Part Schematic Diagram 10-3 Micom Part Schematic Diagram 10-5 A/D converter Part Schematic Diagram BN68-00049R-01 Exploded View and Parts List Exploded View & Parts List Exploded View & Parts List SyncMaster 800TFT Memo Schematic Diagrams Scaler Chip Part Schematic Diagram 10-3 Micom Part Schematic Diagram 10-5 A/D converter Part Schematic Diagram