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LeeMorgan
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Joined: May 22 2008 - 1:20pm
Carver M500T Meters - Repair

I need to find somebody who knows the inner workings of an old Carver M500T amplifier. Over these many years, the meters aren't equal anymore. One is noticeably higher than the other one, when there is music. Both return to 0 when there is no music being amplified. It seems there should be a pot that I can adjust, or something, but I don't see one. Anybody have any ideas on how to make these equal again?

Thanks in advance,

Lee

KBK
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Re: Carver M500T Meters - Repair

when meters become old, they can bind from oxidation in their 'needle bearing' mechanisms, which is the type of 'pivot point' that the meters use/have. This is the usual failure point. attempting to repair them can be difficult, but it can be done. The alternative is new meters..which might be tricky to find.

LeeMorgan
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Re: Carver M500T Meters - Repair

It is not mechanical age, but rather stupid human error (mine, I think). Some years back, I think I mis-calibrated them. It was so long ago, I can't remember what I did. I wish I did...

KBK
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Re: Carver M500T Meters - Repair

Then it is likely a tech with a scope, signal generator, and load can calibrate the meters to the standard they are meant to be set for. I expect it's peak watts, not RMS average.

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