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TROUBLESHOOTING GUIDE

THE PICTURE APPEARS,

BUT THE AUDIO DOES NOT

APPEARS.

Is SP WIRE CONNECTOR

connected?

Is there signal at wave

(SP.Lift) and wave

(SP.Right)?

Is there signal at pins 1

and

of IC YD

1517

(F)?

Connect SP WIRE

CONNECTOR.

Change SPEAKER.

Check IC YD1517(F) and

peripheral circuit.

Yes

and

of IC YD

1517

(F)?

peripheral circuit.

Yes

Is there signal at pins 4

and 6 of IC YD1517(F)?

Check IC YD1517(F) and

peripheral circuit.

Yes

Change IC YD1517(F).

Is there voltage at pin 7

of IC YD1517(F)

+12VDC?

Check D514 and peripheral

circuit.

Yes

JVC LT-22HG45E Service Manual

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