yamaha m-60 power amp repair

tomuchwork101

Novice Member
I heard a pop come from the speaker and smelt electrical overheating coming from the yamaha m-60 power amp. Power amp still powers up but has no sound output and the protection light is on. Does anybody know a good place to start checking for the problem? Thanks in advance for any help.
 

Kapkirk

Well-known Member
Replace all internal fuses first and go from there. If the fuses are all ok then the next step will be checking the driver transistors and power resistors and look to see where something may have burnt out, there should be some evidence like marks or strong smells.
 

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