Denon AVC-4310 - Component Input Troubleshooting (Path C); Component Input Path C Troubleshooting Steps

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AVR-4310CI/AVR-4310/AVC-4310
※ Unless specified, 8U-210063-1 A.VIDEO UNIT part.
C
Input
COMPONENT
YES
Check ± 5VA, +5VD and +9VA.
+5VA : CY152-13,14pin
-5VA : CY152-12pin
+5VD : CX141-1pin
+9VA : CY152-15pin
NG
To troubleshooting 1.1 Power not
turn on.
OK
Check input/output of COMPONENT
selector.
Input Y : IC501-48pin
Input Cb : IC501-2pin
Input Cr : IC501-4pin
Output Y : IC501-27pin
Output Cb : IC501-24pin
Output Cr : IC501-21pin
NG
Check IC501 and CX141
soldering, or DIGITAL UNIT flaw.
OK
Check input/output of AMP.
Input Y : IC503-1pin
Input Cb : IC503-3pin
Input Cr : IC503-5pin
Output Y : IC503-13pin
Output Cb : IC503-11pin
Output Cr : IC503-9pin
NG
Check IC503 soldering, or AMP
settings.
IC503-7pin : H(5V)
OK
OK
Check soldering of IC503 and
surrounding parts.
Check output to 8U-310030 DIGITAL
UNIT.
Output Y : CX111-7pin
Output Cb : CX111-5pin
Output Cr : CX111-3pin
NG
Check soldering of CX111.
Check input of video driver
Input Y : IC305-2pin
Input C : IC305-4pin
NG
Check CX151 soldering,
or DIGITAL UNIT flaw.
OK
Check output of video driver.
Output V : IC305-36pin
NG
Check soldering of IC305.
OK
Check input/output of analog SW.
Input : IC108-14pin
Output : IC108-13pin
NG
Check analog SW settings.
IC108-10pin : H(+5V)
IC108-9pin : L(0V)
NG
Check IC301 and CX141 solder-
ing, or DIGITAL UNIT flaw.
OK
OK
Check soldering of IC108.
Check input/output of AMP.
Input : IC112-5pin
Output : IC112-7pin
NG
Check soldering of IC112.
OK
Check cable between main unit and mon-
itor or Check monitor.