Denon AVR-3808CI Service Manual page 36

N
Input
S
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.
Input Y : IC412-13pin
NG
Input C : IC418-13pin
Output Y : IC412-3pin
Output C : IC418-3pin
OK Check soldering of IC412 and IC418.
Check input/output of AMP.
Input Y : IC407-3pin
NG Check soldering of IC407, IC408 and
Input C : IC408-3pin
surrounding parts.
Output Y : IC407-1pin
Output C : IC408-1pin
OK
Check input/output of analog SW.
Input Y : IC414-3pin
NG
Input C : IC414-13pin
Output Y : IC414-4pin
Output C : IC414-14pin
OK
Check input/output of AMP.
Input Y : IC402-3pin
NG
Input C : IC402-5pin
Output Y : IC402-1pin
Output C : IC402-7pin
OK
Check cable between main unit and
monitor or Check monitor.
Unless specified, 1U-3800-1 A.VIDEO UNIT part.
Check analog SW settings.
IC412-9,10,11pin : L(0V)
NG Check IC505,IC508 and CW132
IC412-6pin : L(0V)
soldering, or DIGITAL UNIT flaw.
IC418-9,10,11pin : L(0V)
IC418-6pin : L(0V)
OK
Check analog SW settings. Check IC505 and CW132 soldering, or
NG
IC414-9,10,11pin : H(+5V) DIGITAL UNIT flaw.
OK
Check soldering of IC414.
Check soldering of IC402.
OK
OK
OK
OK
OK
36
AVR-3808CI / AVR-3808 / AVC-3808
NG
NG NG
OK
NG
NG NG
OK
NG