Samsung DVD-VR320/XEF Manual page 34

Troubleshooting
6-2
Key Operation or
Remote Control Error
Is the measurement of
NO
power with in normal value?
YES
NO
XT602 8MHz
oscillation is normal?
YES
NO
Check the circuity
around IC601 reset?
YES
NO
Check the soldering
around IC601 good?
YES
NO
Key operatious such
as STOP,PLAY,OPEN
are normal?
YES
End repairs
Check power and front connector
Check the circuity around the clock
Check the circuity around
IC601 reset
Check the soldering around the
IC601
Check the circuity around the swith.
check the condition of commmunication
with Main Micom
(IC601,52,66,11,42,44,RRQ,SRQ,SCLK,
DATA-IN,DATA-OUT)
STOP,PLAY,OPEN
Key operatious are
normal?
YES
Change IC701
Samsung Electronics