Sansui HDLCD1909 Manual de servicio descargar pdf (Pagina 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 Manual de servicio Pagina 21