No Audio Output - Sharp XG-NV2SB Service Manual

XG-NV2SB
TROUBLE SHOOTING TABLE

No audio output

Are there audio signal outputs at pins
(5) and (27) of SC6001?
Are there audio signal outputs at pins
(1) and (2) of P1403?
Are there audio signal outputs at pins
(4) and (6) of IC7301?
If the voltage at pin (7) of IC7301 is
not as specified, check Q5501,
Q5502 and their peripheral circuits.
No
Yes
No
Yes
No
Yes
Check IC7301 and its peripheral
circuits, and the SP connectors and
speakers.
38
(Continued)
Check the input, the video-unit
switching circuit of IC6001 and IC
6002, and their peripheral circuits.
Check the amplifier of IC305 and
IC306 and their peripheral circuits,
the IC1409 control voltage, the P1501
connectors, etc.
Check IC7301 and its peripheral
circuits.