6-7
When External Input, No Audio Output
DISC PLAY Audio Out
is normal?
Check 'When Playing Disc, No Audi o Output'
YES
NO
Check JACK JK701,JK702 and other circuits
IC702 ñ 17,18pin
No Audio Signal input ?
YES
NO
When AV1 Input
REAR JACK is okay?
YES
NO
Check ADC Data path :IC702 - 6pin
=> IC503 -5pin => IC503 -6pin => IC301 -199pin
IC703,704 - 7pin
Audio swiching is okay ?
YES
NO
Check IC703, IC704 (AUDIO SWITCH)
& Check Control signal from MICOM IC501
Tuner - 2pin : High, 4pin : Low
AV1 - 2pin : High, 4pin : High
AV2 - 2pin : Low , 4pin : Low
Check signal path from RCA JACK to IC703,704
When AV2 Input
PIM02,PMI02 -27,29p in
are okay?
YES
NO
Check Connector PIM02 & PMI02
When AV2 Input
PMJ01,PJM01-2,3pin
are okay?
YES
NO
Check Connector PMJ01 & PJM01 and Cable
w
w
w
.
x
i
a
o
y
u
1
6
3
.
c
o
m
Q
Q
3
7
6
3
1
5
1
5
0
9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
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