37
AVR-3310CI/AVR-3310/AVR990/AVC-3310
※ Unless specified, 8U-210081-1 A.VIDEO UNIT part.
B
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 : L(0V)
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 output to 8U-310039 DIGITAL
UNIT.
Output Y : CX111-9pin
Output C : CX111-11pin
NG
Check soldering of CX111.
OK
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.
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Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
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