Denon AVR-4810CI Service Manual page 39

B
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 : IC102-13pin
Input C : IC106-13pin
Output Y : IC102-3pin
Output C : IC106-3pin
OK
Check input/output of AMP.
Input Y : IC113-5pin
Input C : IC114-5pin
Output Y : IC113-7pin
Output C : IC114-7pin
OK
Check output to 8U-310030 DIGITAL
UNIT.
Output Y : CX111-9pin
Output C : CX111-11pin
OK
Check input of video driver
Input Y : IC305-2pin
Input C : IC305-4pin
OK
Check output of video driver.
Output V : IC305-36pin
OK
Check input/output of analog SW.
Input : IC108-14pin
Output : IC108-13pin
OK
Check input/output of AMP.
Input : IC112-5pin
Output : IC112-7pin
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.
IC102-9,10,11pin : L(0V)
NG
IC102-6pin : L(0V)
IC106-9,10,11pin : L(0V)
IC106-6pin : L(0V)
OK
Check soldering of IC102 and IC106.
Check soldering of IC113, IC114
NG
and surrounding parts.
NG
Check soldering of CX111.
Check CX151 soldering, or
NG
DIGITAL UNIT flaw.
NG
Check soldering of IC305.
Check analog SW settings.
NG
IC108-10pin : H(+5V)
IC108-9pin : L(0V)
OK
Check soldering of IC108.
NG
Check soldering of IC112.
39
AVR-4810CI/AVR-4810
Check IC301, IC303 and CX141
NG
soldering, or DIGITAL UNIT flaw.
Check IC301 and CX141 solder-
NG
ing, or DIGITAL UNIT flaw.