Ren Ren
New Member
I'm losing output power intermittently...
The M-50 has been purring right along with no real problems after adjusting the DC offset and idling current were adjusted to within specs.
Then, this morning, I get no output to either set of speakers. The protection indicator lights at this time.
I fiddled with the speaker select and speaker on/off switches and it came back on. It dropped out again maybe 15 minutes later. I shot some DeOxit into the switches and it snapped to life. Again, after a time it has dropped out. I have double checked the speaker wires for shorts assuring none were present.
Are those relays a weak point as well? I had tapped on them and it came to life from it...once. Could not duplicate any of these "fixes" to a certainty of the problem. It's boggling me.
What else would trigger the protection circuit. No burnt parts smelled or eyeballed.
Any direction here would be cool. I have the service manual here in front of me.
Rennie
The M-50 has been purring right along with no real problems after adjusting the DC offset and idling current were adjusted to within specs.
Then, this morning, I get no output to either set of speakers. The protection indicator lights at this time.
I fiddled with the speaker select and speaker on/off switches and it came back on. It dropped out again maybe 15 minutes later. I shot some DeOxit into the switches and it snapped to life. Again, after a time it has dropped out. I have double checked the speaker wires for shorts assuring none were present.
Are those relays a weak point as well? I had tapped on them and it came to life from it...once. Could not duplicate any of these "fixes" to a certainty of the problem. It's boggling me.
What else would trigger the protection circuit. No burnt parts smelled or eyeballed.
Any direction here would be cool. I have the service manual here in front of me.
Rennie
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