Session 500 problem

Carl Dvorcek · From: Texas, USA

My 500 recently developed an intermittent problem. From out of nowhere it starts popping like a machine gun going off. Pop Pop Pop Pop Pop Pop Pop, very rapidly, then stops indefinitely. I suspect a capacitor but haven't had the time to tear the amp down. Anyone ever heard this reaction from a Peavey product?

thanks,
Carl

Jack Stoner · From: Kansas City, MO

Check the power supply caps. The Session 500's are relatively old and the filter caps would be a good place to start (even if it doesn't fix your problem).

I had a problem with the one I had, it would lose volume and the limiter lamp would come on. The power supply voltages, on the output transistors, were only 3 volts low, but it turned out to be the filter caps.

[This message was edited by Jack Stoner on 23 July 2000 at 09:12 AM.]

Bill Terry · From: Bastrop, TX

Carl,
I had a Nashville doing the same thing, turned out to be a cracked PCB solder joint in my case.

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bterry.home.netcom.com

Bob Metzger · From: Waltham (Boston), MA, USA

Get a schematic and check the voltages throughout the power supply, paying special attention to those filter caps.

Bob

Mike Brown · From: Meridian, Mississippi USA

Jack's suggestions are the same as ours. Let us know if we can assist. Toll free in the U.S. at 1-877-732-8391.

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