Problème d'amplificateur original le fp 10000 q

[Viselecentre]

Yes it's possible with the amplifier off but to locate where the relay is, you will have to turn on the amplifier, unless you are lucky enough to find it on the power supply board.

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it is not possible to bring it back to the repairer and tell him the defect found so that he can finish his first job?

J'ai trouvé la carte d'alimentation et je pense avoir trouvé le relais , il y a une vise dessus