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Axcelerator 5 bass active EQ schematic?

alpho

Gold Supporting Member
Mar 10, 2017
47
66
Tucson, AZ
I have a Peavey Axcelerator 5 Bass, with active VFL pickups and an active Bass/Treble EQ. A short in the wiring overheated the electronics and the battery. The bass stopped working.

I wanted to fix it fast by replacing the circuit board. Peavey Support doesn't have any more parts for this long-obsolete bass, understandably. I found a wiring diagram on the Peavey users' forum, but I haven't found a schematic yet.

I was going to start the repair with a wholesale recapping of the circuit board, but the capacitors are tiny monolithics and the codes printed on them are barely legible. If I can read the code, I'm having no luck deciphering it. A capacitor says "KRU 412." The "412" is 4.1nF, but what is "KRU"? Another capacitor says "KKW 349," which is a 3.4pF capacitor but what is "KKW?"

Another problem I have is that for some of the capacitors, there isn't an exact value available as a replacement. For example, the closest value I have found to the 4.1nF capacitor is 3.9nF. Is that close enough? Probably, but I'd like to see the schematic so I could at least judge the effect if I change the value.

So I need at least a parts list that shows the specified component values. I want a schematic to see the components' functions. Peavey Support hasn't answered my request for a schematic, so I presume they haven't kept a copy.

Long story short: Does anybody have a schematic for the active bass/treble filter circuit board for this bass?

I'll welcome expert advice on how to interpret capacitor codes, but I'm not ready yet for a discussion on what went wrong.
 

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