Need help on beolab1 (red, short green, red, no sound)

[69er]

Hi folks,

I acquired two broken Beolab 1.

one was easy to fix (tweeter).

the other one is more complicated.

speakers are (now) ok. The ptb ntc also.

I cross installed components between the two and now I know, the faulty component is on the (bigger) amplifier board.

Nothing visually defective.

a lot of parts on this board, so could anyone please give me a hint, what to measure and exchange?

behavior: goes on red, then for a second on green, then stays red. No sound.

When changing this board it works, so the malfunction needs to be here.

thanx in advance

69er

[69er]

Any expert for Beolab 1 available?
best regards

69er

[69er]

Nobody, who knows how to fix that thing?

[nbohemen]

I had the same problem. I had it fixed by a specialist in Utrecht, the Netherlands.

[Valve1]

What country are you in ? There might be a local specialist repair available.

[69er]

I am in Germany. @nbohemen: Could You please share the contact in Utrecht with me?
Best regards

69er

[Author]

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