Denon AVR-3808CI Service Manual page 31

Q Q
3 7 6 3 1 5 1 5 0
O
Input
CVBS
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 analog SW.
NG
Input Y : IC420-13pin
Output C : IC420-3pin
OK
Check input/output of AMP.
Check soldering of IC409 and
NG
Input : IC409-5pin
surrounding parts.
Output : IC409-7pin
OK
Check output to1U-3799 DIGITAL UNIT.
NG
Output V : CW113-5pin
OK
1U-3800-2 VIDEO CONNECT UNIT.
Check input of video driver
NG
Input Y : IC703-10in Check CX093 soldering, or DIGITAL
T E
L 1 3 9 4 2 2 9 6 5 1 3
Input Cb : IC703-14pin UNIT flaw.
Input Cr : IC703-16pin
OK
Check output of video driver.
Output Y : IC703-23pin NG
Output Cb : IC703-21pin
Output Cr : IC703-18pin
OK
Check input/output of COMPONENT
selector.
Input Y : IC601-6pin
Input Cb : IC601-8pin Check IC601 and CW092 soldering,
NG
Input Cr : IC601-10pin or DIGITAL UNIT flaw.
Output Y : IC601-34pin
Output Cb : IC601-32pin
Output Cr : IC601-30pin
OK
Check input/output of AMP.
Input Y : IC603-1pin
Input Cb : IC603-3pin
NG
Input Cr : IC603-5pin
Output Y : IC603-13pin
Output Cb : IC603-11pin
Output Cr : IC603-9pin
w w w
OK
Check cable between main unit and
.
monitor or Check monitor.
Unless specified, 1U-3800-1 A.VIDEO UNIT part.
Check analog SW settings.
NG Check IC505, IC508 and CW132
IC420-9,10,11pin : L(0V)
soldering, or DIGITAL UNIT flaw.
IC420-6pin : L(0V)
OK
Check soldering of IC420.
Check soldering of CW113.
1U-3800-2 VIDEO CONNECT UNIT
Check soldering of IC703.
Check AMP settings. Check IC508 and CW132 soldering, or
NG
IC603-7pin : H(5V) DIGITAL UNIT flaw.
OK
Check soldering of IC603.
x a o
y
i
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8
OK
OK
OK
OK
Q Q
3 7 6 3
OK
OK
OK
OK
u 1 6 3
.
31
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9 2 4 9 8
NG
NG
OK
NG
NG
NG
1 5 1 5 0 8 9 2 4
NG
NG
NG
OK
m
c o
AVR-3808CI / AVR-3808 / AVC-3808
2 9 9
NG
9 8 2 9 9
NG