Denon AVC-4310 - S-Video Input Troubleshooting (Path L); S-Video Input Path L Troubleshooting Steps

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AVR-4310CI/AVR-4310/AVC-4310
※ Unless specified, 8U-210063-1 A.VIDEO UNIT part.
L
Input
S
YES
Check ± 5VA and +5VD.
+5VA : CY152-13,14pin
-5VA : CY152-12pin
+5VD : CX141-1pin
NG
To troubleshooting 1.1 Power not
turn on.
OK
Check input/output of analog SW.
Input Y : IC102-13pin
Input C : IC106-13pin
Output Y : IC102-3pin
Output C : IC106-3pin
NG
Check analog SW settings.
IC102-9,10,11pin : L(0V)
IC102-6pin : L(0V)
IC106-9,10,11pin : L(0V)
IC106-6pin : L0V)
NG
Check IC301, IC303 and CX141
soldering, or DIGITAL UNIT flaw.
OK
OK
Check soldering of IC102 and IC106.
Check input/output of AMP.
Input Y : IC113-5pin
Input C : IC114-5pin
Output Y : IC113-7pin
Output C : IC114-7pin
NG
Check soldering of IC113, IC114
and surrounding parts.
OK
Check input/output of analog SW.
Input Y : IC104-2pin
Input C : IC104-15pin
Output Y : IC104-3pin
Output C : IC104-13pin
NG
Check analog SW settings.
IC104-10pin : L(0V)
IC104-9pin : H(+5V)
NG
Check IC301 and CX141 solder-
ing, or DIGITAL UNIT flaw.
OK
OK
Check soldering of IC104.
Check input/output of AMP.
Input Y : IC111-3pin
Input C : IC111-5pin
Output Y : IC111-1pin
Output C : IC111-7pin
NG
Check soldering of IC111.
OK
Check cable between main unit and mon-
itor or Check monitor .