Epson C8230 Manual de Serviço descarregar pdf (Página 43)

43

PG-C30XE

Checking the OSD circuit and its peripheral circuits

Display OSD on the screen.

Yes

No

Are there signals at pins (56), (58),

(71) and (72) of IC8048?

IC8029 or its peripheral circuit faulty.

Yes

No

Are there signals at pins (12), (14)

thru (17) and (20) of IC8048?

IC8048 or its peripheral circuit faulty.

Yes

No

Are there signals at pins (23) thru

(42) of IC8048?

IC8046, IC8047 or their peripheral

circuit faulty.

IC8048 or its peripheral circuit faulty.

IC8001 circuit faulty.

Checking the remote control

Yes

No

Run the remote control. Are there

signals at pin (59) of CON4 (P8405)

connector?

output PWB faulty.

TROUBLE SHOOTING TABLE FOR PC I/F UNIT-6

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