D & DG BOARD FAULTS
Fault diagnosis method
- Disconnect D5 Connector.
- Enter to the Test Pattern.
Is OSD on screen? If Yes; enter to the test pattern. Is pattern displayed OK ? If NO, D-Board is faulty. If Yes, DG board is faulty.
Is OSD on screen? After disconnect D5 connector, Power On the set. Is test pattern is displayed OK. If NO, D-Board is faulty. If Yes, DG board is faulty.
White pattern and test patterns are generated by IC9500 of D-Board. When these patterns are normally displayed on the screen, it can be seem good processing circuit between D-Board and Panel Drive Circuit.
Screen Shots:
D-Board fault
Faulty D-board
Faulty DG board
Faulty DG Board
Faulty DG Board
Faulty DG Board
Faulty DG Board
