Denon AVR-3808CI Service Manual page 38

O
Input
CVBS
Check 5VA, +5VD and +9VA.
+5VA : CW082-3,4pin
NG To troubleshooting 1.1 Power not turn
-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 1U-3800-2 VIDEO CONNECT UNIT
NG
Input Y : IC703-10in Check CX093 soldering, or DIGITAL
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
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
IC420-9,10,11pin : L(0V)
soldering, or DIGITAL UNIT flaw.
IC420-6pin : L(0V)
OK
Check soldering of IC420.
Check soldering of CW113.
Check soldering of IC703.
Check AMP settings. NG Check IC508 and CW132 soldering, or
IC603-7pin : H(5V) DIGITAL UNIT flaw.
OK
Check soldering of IC603.
OK
OK
OK
OK
OK
OK
OK
OK
38
AVR-3808CI / AVR-3808 / AVC-3808
NG
NG NG
OK
NG
NG
NG
NG
NG
NG NG
OK