Denon AVR-4810CI Service Manual page 43

E
Input
CVBS
YES
Check ± 5VA and +5VD.
+5VA : CY152-13,14pin
-5VA : CY152-12pin
+5VD : CX141-1pin
OK
Check input/output of analog SW.
Input : IC110-13pin
Output : IC110-3pin
OK
Check input/output of AMP.
Input : IC115-3pin
Output : IC115-1pin
OK
Check input/output to OSD driver input
signal selector.
Input : IC202-5pin
Output : IC202-4pin
OK
Check input/output of OSD driver.
Input : IC201-15pin
Output : IC201-13pin
OK
Check input/output of buffer AMP.
Input : IC203-3pin
Output : IC203-1pin
OK
Check input/output of analog SW.
Input : IC105-15pin
Output : IC105-3pin
OK
Check input/output of AMP.
Input : IC112-3pin
Output : IC112-1pin
OK
Check cable between main unit and mon-
itor or Check monitor.
※ Unless specified, 8U-210063-1 A.VIDEO UNIT part.
To troubleshooting 1.1 Power not
NG
turn on.
Check analog SW settings.
NG
IC110-9,10,11pin : L(0V)
IC110-6pin : L(0V)
OK
Check soldering of IC110.
NG
Check soldering of IC115.
Check analog SW settings.
NG
IC202-9,10,11pin : L(0V)
OK
Check soldering of IC202.
Check soldering of IC201 and
NG
surrounding parts.
NG
Check soldering of IC203.
Check analog SW settings.
NG
IC105-11pin : L(0V)
IC105-10pin : H(+5V)
OK
Check soldering of IC105.
NG
Check soldering of IC112.
43
AVR-4810CI/AVR-4810
Check IC301, IC303 and CX141
NG
soldering, or DIGITAL UNIT flaw.
Check IC303 and CX141 solder-
NG
ing, or DIGITAL UNIT flaw.
Check IC303 and CX141 solder-
NG
ing, or DIGITAL UNIT flaw.