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Author Topic: peavey musician series 400  (Read 349 times)

plen

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peavey musician series 400
« on: August 06, 2020, 06:55:55 PM »
i bought a peavey musician series 400 amp about a year ago. i played it for about half an hour then i got a lot of distortion. i turned it off. when i put it back on it would not come on. it just gave a putting sound from the amp and blew the fuse, anyone have any ideas where to look.

thanks.

Enzo

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Re: peavey musician series 400
« Reply #1 on: August 06, 2020, 09:29:19 PM »
BLows fuses?  Start at the start.  DISCONNECT any speaker, if it still blows fuses, then check for shorted output transistors.

joecool85

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Re: peavey musician series 400
« Reply #2 on: August 07, 2020, 08:58:16 PM »
Sounds like shot power supply capacitors to me and/or rectifying diodes.  Regardless, before trying to turn it back on, open it up and look for any burn marks etc.  If all looks good, then build a quick light bulb limiter, plug it into that and start taking voltage measurements with a digital multimeter (we can help here).

Light bulb limiter: https://www.ssguitar.com/index.php?topic=2093.0
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Jazz P Bass

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Re: peavey musician series 400
« Reply #3 on: August 08, 2020, 01:09:50 AM »
!!!"  DISCONNECT any speaker"!!!