Onkyo DV-SP404 Service Manual page 28

DECK DOES NOT ACCEPT
OPEN/CLOSE
Is the voltage at pins 3,18 and
19 of IC2301 about DC6V ?
Yes
Is the lose connection
at CP2302 to DECK ?
No
Change DVD LOADER.
TROUBLESHOOTING GUIDE
No
Yes
D-2
Check P.CON 6V line of
POWER BLOCK.
Check CP2302
connection to DECK.