Denon AVR-4810CI Service Manual page 44

F
Input
S
YES
Check ± 5VA and +5VD.
+5VA : CY152-13,14pin
-5VA : CY152-12pin
+5VD : CX141-1pin
OK
Check input/output of analog SW.
Input Y : IC103-13pin
Input C : IC107-13pin
Output Y : IC103-3pin
Output C : IC107-3pin
OK
Check input/output of AMP.
Input Y : IC113-3pin
Input C : IC114-3pin
Output Y : IC113-1pin
Output C : IC114-1pin
OK
Check input/output of MIX AMP.
Input Y : IC116-3pin
Input C : IC116-1pin
OK
Check input/output to OSD driver input
signal selector.
Input : IC202-3pin
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
IC103-9,10,11pin : L(0V)
IC107-9,10,11pin : L(0V)
OK
Check soldering of IC103 and IC107.
Check soldering of IC113, IC114
NG
and surrounding parts.
NG
Check soldering of IC116.
Check analog SW settings.
NG
IC202-9,10,11pin : H(+5V)
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.
44
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.