Peavey Backstage Plus 35W Guitar Amp
Posted: 04 Mar 2015, 06:20
Hi Everyone,
I've just recently been given a Peavey Backstage Plus 35W Solid State guitar amp for nothing, and I'm currently working on it to get it back to a useable state, so, what's wrong with it?
Well, the original speaker is a no-worker but the rest of the amp seems to work fine, I verified this by plugging my pair of headphones into the headphone socket, I get normal sound through my headphones but no sound through the speaker....
I've managed to find what I think should be a good replacement on the Musician's Friend website, the replacement speaker I have selected and ordered online is a 10 inch Jensen C10Q speaker.
Also managed to find some good/readable schematics for it online too......
The other thing wrong with the amp is R63, a 22 Ohm /1W resistor, is burnt out so I'll be replacing R63 with a new one.....
The only other thing the amp needs is all the pots sprayed with contact cleaner, which I've already done.....
Finally, one mod I'm going to make to the amp is to replace the original power indicator led with a blue one......
Another mod I'm going to do is replace all the 4558 op amp ICs with TLO72CP.......
And also make a footswitch for the amp as well.....
Anyway, just thought I would post the schematics for any one interested in downloading a copy:
I've just recently been given a Peavey Backstage Plus 35W Solid State guitar amp for nothing, and I'm currently working on it to get it back to a useable state, so, what's wrong with it?
Well, the original speaker is a no-worker but the rest of the amp seems to work fine, I verified this by plugging my pair of headphones into the headphone socket, I get normal sound through my headphones but no sound through the speaker....
I've managed to find what I think should be a good replacement on the Musician's Friend website, the replacement speaker I have selected and ordered online is a 10 inch Jensen C10Q speaker.
Also managed to find some good/readable schematics for it online too......
The other thing wrong with the amp is R63, a 22 Ohm /1W resistor, is burnt out so I'll be replacing R63 with a new one.....
The only other thing the amp needs is all the pots sprayed with contact cleaner, which I've already done.....
Finally, one mod I'm going to make to the amp is to replace the original power indicator led with a blue one......
Another mod I'm going to do is replace all the 4558 op amp ICs with TLO72CP.......
And also make a footswitch for the amp as well.....
Anyway, just thought I would post the schematics for any one interested in downloading a copy: