https://assets.peavey.com/literature/ma ... 0mixer.pdf
Question for techs and/or knowedgeable electronics dudes.
Have an old 80s prolly worthless Peavey 900 passive mixer. If some of you would look at this diagram and see if a fuse is somewhere in the circuit, I'd appreciate it.
I looked at the diagram with my limited understanding but do not see a fuse anywhere nor is one visible anywhere on the mixer panel.
I'm not above opening it up and inspecting it but I really wouldn't know what to look for unless there is a fuse in there.
It's just an old mixer that I use in my music room to run audio through for practice so I don't expect too much.
Anyway, I unpugged the thing from power and cables with the switch on while working on some stuff and subsquently plugged it back in the same way without realizing it and now it won't power up.
Thanks for reading.
Could be the power supply or something in the circuit was blown.
Old Peavey 900 Mixer fuse in power circuit ?
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Jerry Overstreet
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Old Peavey 900 Mixer fuse in power circuit ?
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Dennis Detweiler
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Re: Old Peavey 900 Mixer fuse in power circuit ?
There should be a fuse holder on the back of the mixer near the power cable (wire)? Looks like a black button that pushes and turns (spring loaded). There could be a fuse on the circuit board inside also. Those are easy to spot, metal clips about an inch apart with a fuse bridging the two clips. Replace with the same type and amperage.
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Jerry Overstreet
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Re: Old Peavey 900 Mixer fuse in power circuit ?
Maybe internally, but there is no fuse anywhere on the outside of any of the panels. Guess I'll pull in apart and have a look see when time allows. Probably toast.
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Jerry Overstreet
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Re: Old Peavey 900 Mixer fuse in power circuit ?
K, so there is a 3AG fuse soldered in the power line that passes a continuity test. The power cord also tests good on ea. leg to the switch along with the switch best I can tell.
And that's about the extent of my knowledge. Don't see anything obvious on the board traces. I suspect the transformer, but do they just go bad? I'm not sure if I need to be testing anything else under power though.
Probably not worth a repair bill but I can strip it for lots of good knobs, jacks etc. later on.
And that's about the extent of my knowledge. Don't see anything obvious on the board traces. I suspect the transformer, but do they just go bad? I'm not sure if I need to be testing anything else under power though.
Probably not worth a repair bill but I can strip it for lots of good knobs, jacks etc. later on.