8-10
A91F3TR
[ Audio Signal Section ]
Check SP801,SP802 and their periphery circuit,
and service it if defective.
Are the audio(L/R) signals inputted to the Pin(1, 44)
of IC801?
Are the audio(L/R) signals inputted to the Pin(3, 5)
of IC871?
Yes
Yes
Audio is not outputted normally.(Audio input)
FLOW CHART NO.1
Are the audio(L/R) signals inputted to Pin(2, 15)
of IC771?
Check the line between Pin(2, 15) of IC771 and
input terminal(JK753, JK754), and service it if
defective.
Yes
No
No
No
Are the audio(L/R) signals outputted to the Pin(1, 2)
of CN801 and CN802?
Are the audio(L/R) signals outputted to the audio
output terminal?
Check IC801 and their periphery circuit, and
service it if defective.
CN802: SP(L)
CN801: SP(R)
JK871: AUDIO(L)-OUT
JK872: AUDIO(R)-OUT
No
Yes
Are the audio(L/R) signals inputted to each pin of
CN301?
Replace Digital Main CBA Unit.
Check the line between Pin(6, 8) of CN301 and
Pin(1, 44) of IC801, and service it if defective.
Check the line between Pin(2, 4) of CN301 and
Pin(3, 5) of IC871, and service it if defective.
No
Check the line between Pin(1, 7) of IC871 and audio
output terminal(JK871, JK872), and service it if
defective.
Pin(6) :
Pin(8) :
Pin(2) :
Pin(4) :
AMP(L)-OUT
AMP(R)-OUT
AUDIO(L)-OUT
AUDIO(R)-OUT
No
Summary of Contents for 32MF339B/F7
Page 63: ...10 8 A91FSSCM2 Power Supply 2 4 Schematic Diagram LC321SSX 32MF369B F7 ...
Page 64: ...10 9 A91FSSCM3 Power Supply 3 4 Jack Schematic Diagram LC321SSX 32MF369B F7 ...
Page 65: ...10 10 A91FSSCM4 Power Supply 4 4 Schematic Diagram LC321SSX 32MF369B F7 ...
Page 68: ...10 13 A91F3SCF Function Schematic Diagram LC320SLX 32MF339B F7 LC320SSX LC320EMX LC320EMXF ...
Page 69: ...10 14 A91FSSCF Function Schematic Diagram LC321SSX 32MF369B F7 ...
Page 71: ...10 16 A91FSSCIR IR Sensor Junction Schematic Diagram LC321SSX 32MF369B F7 ...
