Emerson LC320EM1 User Manual

8-7 FL10.3TR
[ 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?
Ye s
Ye s
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.
Ye s
No
No
No
Are the audio(L/R) signals outputte
d to the Pin(1, 2)
of CN801 and CN80
2?
Are the audio(L/R) signals outputte
d to the audio
output terminal?
Check IC801 and their periphery circuit, and
service it if defective.
CN801: SP(L)
CN802: SP(R)
JK871: AUDIO(L)-OUT
JK872: AUDIO(R)-OUT
No
Ye s
Are the audio(L/R) signals inputted to each pin of
CN301?
Replace Digital Main CBA Unit.
Check the line b
etween Pin(6, 8) of CN301 and
Pin(1, 44) of IC801, and
service it if defec
tive.
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 ser
vice it if
defective.
Pin(6) :
Pin(8) :
Pin(2) :
Pin(4) :
AMP(L)-OUT
AMP(R)-OUT
AUDIO(L)-OUT
AUDIO(R)-OUT
No

Emerson LC320EM1 Specifications

General

Brand	Emerson
Model	LC320EM1
Category	LCD TV
Language	English