Read Sharp XG-NV4SE (serv.man5) Service Manual online
35
XG-NV4SE/SM
XG-NV40SA
XG-NV40SA
TROUBLE SHOOTING TABLE
(Continued)
No audio output
Yes
No
Check the input, the switching circuit
of IC3303 and IC3304, and their
peripheral circuit,SC3001,SC1502,etc.
of IC3303 and IC3304, and their
peripheral circuit,SC3001,SC1502,etc.
Are there audio signal inputs at pin
(2) of IC1411?
(2) of IC1411?
Yes
No
Check the IC1411 control voltage,and
its peripheral circuits.
its peripheral circuits.
Are there audio signal outputs at pin
(2) of P5508?
(2) of P5508?
Yes
No
Check IC7301 and its peripheral
circuits.
circuits.
Are there audio signal outputs at pin
(6) of IC7301?
(6) of IC7301?
Check IC7301 and its peripheral
circuits, and the SP connectors and
speakers.
circuits, and the SP connectors and
speakers.
If the voltage at pin (7) of IC7301 is
not as specified, check Q5501,
Q5502 and their peripheral circuits.
not as specified, check Q5501,
Q5502 and their peripheral circuits.
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