FUNAI BH2-M200 Service Manual page 28

FLOW CHART NO.7
Audio E-E does not appear normally.
Are the audio signals inputted to each pin of IC3302?
IC3302 2,15PIN AUDIO-IN1 (AV1)
IC3302 1,12PIN AUDIO-IN2 (AV2)
Are the audio signals outputted to Pin(3,13) of IC3302?
Are the audio signals outputted to Pin(1, 7) of IC3301?
Are the analog audio signals outputted to each pin of
CN3001?
CN3001 19PIN AUDIO (L)-OUT
CN3001 21PIN AUDIO (R)-OUT
Are the audio signals outputted to Pin(1, 7) of IC3401?
Are the analog audio signals inputted to each pin of
IC3004?
IC3004 54PIN AUDIO (L)-OUT
IC3004 49PIN AUDIO (R)-OUT
Are the analog audio signals outputted to each pin of
IC3004?
IC3004 61,62PIN AUDIO-OUT 1 (AV1)
IC3004 58,59PIN AUDIO-OUT 2 (AV2)
Are the audio signals outputted to the specific output
terminal?
Are the audio signals outputted to the audio terminal
(JK3001)?
Are the audio signals outputted to the audio terminal
(JK3501)?
Are the audio signals outputted to the audio terminal
(JK3001)?
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Check the line between audio input terminal and
each pin of IC3302, and service it if defective.
No
IC3302 2,15PIN
IC3302 1,12PIN
No
Is +12V voltage supplied to Pin(16) of IC3302?
Yes
Replace IC3302.
No
Is +8V voltage supplied to Pin(8) of IC3301?
Yes
Replace IC3301.
No
Replace the BD Mechanism Assembly or BD/HDD
Main CBA Unit.
No
Is +12V voltage supplied to Pin(8) of IC3401?
Yes
Replace IC3401.
Check each line between each pin of IC3401 and each
pin of IC3004, and service it if defective.
No
→
IC3401 7PIN
→
IC3401 1PIN
Is 5V voltage supplied to Pin(5, 9, 13, 24, 28, 30, 43)
No
of IC3004?
Is 12V voltage supplied to Pin(29) of IC3004?
Yes
Replace IC3004.
No
Check the periphery between Pin(61,62) of IC3004
and the audio terminal (JK3001), and service it if defective.
Check the periphery between Pin(58,59) of IC3004 and
No
the audio terminal (JK3501), and service it if defective.
No
Check the periphery between Pin(1,7) of IC3401 and
the audio terminal (JK3001), and service it if defective.
1-12-7
→
JK3002 AUDIO-IN1 (AV1)
→
JK3501 AUDIO-IN2 (AV2)
No
Check the P-ON+12V line and
service it if defective.
No
Check the P-ON+12V line and
service it if defective.
No
Check the P-ON+12V line and
service it if defective.
IC3004 54PIN AUDIO(L)-OUT
IC3004 49PIN AUDIO(R)-OUT
No
Check the P-ON+5V, P-ON+12V
line and service it if defective.
E4V20TR