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Onkyo M-504 Powers On But No Sound
Powers on but protection/servo light/relay kicks off so there is no sound, cant find anything burnt ...

Part Missing On Amplifier M-504
I have a Onkyo M-504 since more than 25 years and recently lost the cap on top of the "Power" on/off...

I Need My M-504 Repaired. Any Recommendations?
https://www.manualslib.com/manual/302391/Onkyo-M-504.html#manualhttps://elektrotanya.com/onkyo_m-504...

Onkyo M-504 Powers On But No Sound
YourOnkyo M-504 device powers on and no sound because of some of the cables are not properly connect...

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