Hello

I'm here to discuss about clock.

I have a Beocenter 9300 that power on, open and close doors, but not enable the speaker output.

The relay is ok, the problem is in the IC1 of the amplifier PCB, it doesn't receive the clock at pin 3 so I started to go backwards in the circuit to check where the clock disappear, in the Base of TR7 of PCB 40 there is an orrible signal, nothing to do with a "square" signal or similar...

The same in the P32-2 of PCB 3... even if the connector is disconnected and the signal is sent directly to the oscilloscope.

So this is my question, does someone know how this signal appears correctly on the screen?

Could be damaged the IC 10 of pcb 3? Is usual?

Thanks a lot

Eugenio

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