Denon AVR-3808CI Service Manual page 27

G
Input
CVBS
Check 5VA and +5VD.
+5VA : CW082-3,4pin NG To troubleshooting 1.1 Power not turn
-5VA : CW082-1,2pin on.
+5VD : CW132-1pin
OK
Check input/output of analog SW.
NG
Input : IC421-13pin
Output : IC421-3pin
OK
Check input/output of AMP.
NG
Input : IC409-3pin
Output : IC409-1pin
OK
Check input/output of analog SW.
NG
Input : IC413-1pin
Output : IC413-15pin
OK
Check input/output of AMP.
NG
Input : IC403-5pin
Output : IC403-7pin
OK
Check cable between main unit and
monitor or Check monitor.
Unless specified, 1U-3800-1 A.VIDEO UNIT part.
Check analog SW settings.
Check IC505, IC508 and CW132
NG
IC421-9,10,11pin : L(0V)
soldering, or DIGITAL UNIT flaw.
IC421-6pin : L(0V)
OK
Check soldering of IC421.
Check soldering of IC409.
Check analog SW settings. Check IC505 and CW132 soldering, or
NG
IC413-9,10,11pin : H(5V) DIGITAL UNIT flaw.
OK
Check soldering of IC413.
Check soldering of IC403.
OK
OK
OK
OK
OK
27
AVR-3808CI / AVR-3808 / AVC-3808
NG
NG NG
OK
NG
NG NG
OK
NG