Sansui HDLCD1909 Servisní příručka stáhnout pdf (Strana 21)

TROUBLESHOOTING GUIDE

THE PICTURE APPEARS,

BUT THE AUDIO DOES NOT

APPEARS. (AT RF MODE)

Is CD301 connected?

Is there signal at pins

1 and 4 of CD301?

Is there signal at pins

2 and 4 of IC301?

Connect CD301.

Change SP301 and SP302.

Check IC301 and peripheral

circuit.

Yes

E-2

Is there signal at pins

A3 and C4 of IC2801?

Change TU5801.

Check R2836, R2837 and

peripheral circuit.

Yes

Is there signal at pin

5 of TU5801?

Check IC2801 and peripheral

circuit.

Yes

E-2

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Sansui HDLCD1909 Servisní příručka Strana 21