Denon AVR-3808CI Service Manual page 14

Q Q
3 7 6 3 1 5 1 5 0
C
Input
COMPONENT
Check 5VA, +5VD and +9VA.
+5VA : CW082-3,4pin
To troubleshooting 1.1 Power not turn
NG
-5VA : CW082-1,2pin
on.
+5VD : CW132-1pin
+9VA : CW082-8pin
OK
Check input/output of COMPONENT
selector.
Input Y : IC601-48pin
Input Cb : IC601-2pin Check IC601 and CW092
NG
Input Cr : IC601-4pin soldering, or DIGITAL UNIT flaw.
Output Y : IC601-34pin
Output Cb : IC601-32pin
Output Cr : IC601-30pin
OK
Check input/output of AMP.
Input Y : IC602-1pin
Input Cb : IC602-3pin
NG
Input Cr : IC602-5pin
Output Y : IC602-13pin
Output Cb : IC602-11pin
Output Cr : IC602-9pin
Check soldering of IC602 and
OK
T E
L 1 3 9 4 2 2 9 6 5 1 3
surrounding parts.
Check output to 1U-3799 DIGITAL UNIT.
Output Y : CW112-5pin NG
Output Cb : CW112-3pin
Output Cr : CW112-1pin
1U-3800-2 VIDEO CONNECT UNIT.
Check input of video driver NG
Check CX093 soldering,
Input Y : IC703-8pin
or DIGITAL UNIT flaw.
Input C : IC703-2pin
OK
Check output of video driver.
NG
Output V : IC703-27pin
OK
Check input/output of analog SW.
NG
Input : IC419-14pin
Output : IC419-13pin
OK
Check input/output of AMP.
NG
Input : IC405-5pin
w w w Output : IC405-7pin
OK
Check cable between main unit and
.
monitor or Check monitor.
Unless specified, 1U-3800-1 A.VIDEO UNIT part.
Check AMP settings. Check IC508 and CW132 soldering, or
NG
IC602-7pin : H(5V) DIGITAL UNIT flaw.
OK
Check soldering of CW112.
1U-3800-2 VIDEO CONNECT UNIT
Check soldering of IC703.
Check analog SW settings.
Check IC506 and CW132 soldering, or
NG
IC419-10pin : H(+5V)
DIGITAL UNIT flaw.
IC419-9pin : L(0V)
OK
Check soldering of IC419.
Check soldering of IC405.
x a o
y
i
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8
OK
OK
OK
Q Q
3 7 6 3
OK
OK
OK
OK
u 1 6 3
.
14
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9 2 4 9 8
NG
NG
NG
OK
1 5 1 5 0 8 9 2 4
NG
NG
NG
NG
OK
NG
m
c o
AVR-3808CI / AVR-3808 / AVC-3808
2 9 9
NG
9 8 2 9 9
NG