Hello everyone, I have a Mark levinson model "86280-0W690" and I would like to repair it myself since the repair cost is high and I have a little experience repairing but I need the help of someone with experience, my amplifier does not send signal to the speakers, the amplifier turns on and allows you to increase the volume on the radio but does not send sound to the speakers someone to help me I will leave several images of the model
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Hmmm, I think the amp talks (most likely) CAN with the rest of the car electronics. I believe the only way to proceed with the repair is to obtain the schematics. Then, you should be able to do basic checks (voltages, logic level signals...). Curly one... it seems 🙂