Peavey Renown 212 Solo Series

[Chuck Gibson]

I have an Peavey Renown 212 solo series amp that had the high gain jack come loose and slip inside the amp. I was able to pull it back through the face of the cabinet and put a new nut on it but the high gain side would no longer work. The low side works just fine. I opened the amp up to check for loose wires and the high gain jack ( three lug jack) only has one green wire going to it and it has a jumper wire tying it in to another lug on that same jack. The last lug on that jack looks like it had a wire soldered to it but it is broke off. (I bought the amp new many years ago and no one has worked on it) There is not a loose wire there for me to solder back to the lug. The low gain jack right next to it has a red wire and a white wire going to separate lugs on it. The third lug on that low gain jack does not appear to have ever had anything soldered to it. Is there another wire that should be soldered to that high gain jack? I checked the high gain jack with an ohmeter and all three lugs show continuity to ground. Is that right? The jack looks fine on the outside but could it be shorted on the inside?
Thanks in advance.

[g1]

It's correct that it reads like that on your meter if nothing is plugged into it.
Check those 2 wires going to the low jack, one of them should be going nowhere at the other end and that is your mystery wire that connects to Hi.

[Chuck Gibson]

It's correct that it reads like that on your meter if nothing is plugged into it.
Check those 2 wires going to the low jack, one of them should be going nowhere at the other end and that is your mystery wire that connects to Hi.

Interesting. I plugged a guitar chord into the high jack and it changed the readings just as you described.

There are four wires bundled together in one larger black insulated wire. They start from a three pronged plug that begins at the circuit board and leads to the back of the low and high jacks. The wires coming out of the plug are as follows: One terminal has a white wire. One terminal has a red wire. The last terminal has a green wire as well as a bare wire coming from the same terminal.

The low jack has the red wire and white wire running to it.

The high jack has the green wire running to it with a jumper wire connecting another terminal on that same jack. NOW....The bare wire ends where the black insulation stops instead of running out to connect to anything.

Should that bare wire be extended to hook up to that last terminal?

That would mean that all of the wires connected to that one jack come from the same source.
Maybe when that jack slipped inside of the amp the bare wire melted back or something...

Thank you so much for helping me. I will be away from the computer tomorrow so it will be Thursday before I can get back with you on any other advice you guys share...

[g1]

The bare wire is just a shield and is correct the way it is (disconnected at one end).
My best guess is there was a short piece of wire between the jacks that has broken off and been removed or fell out of the chassis.
The wire will go from the lug on the high jack which is missing it's wire, to either the white or red wire on the low jack (which ever connects to R2 on linked schematic, if it is correct version for your unit).
If you can post some good pics of the way the 2 jacks are wired now, that will help.

http://music-electronics-forum.com/a...12-scheme-.pdf

[cjenrick]

does it look like this pic? looks like there is a green for gnd for both jacks, the two hots are white and red,

you could hard wire that jack if the connector cable is barfed up,

hit and git solder so you do not loosen up the pin

[g1]

From that pic, low jack white (middle lug) connects via short white wire to tip lug on Hi jack (the one missing it's wire for OP).
Green connects only to Hi jack and lo jack gets ground via chassis.

[Chuck Gibson]

does it look like this pic? looks like there is a green for gnd for both jacks, the two hots are white and red,

you could hard wire that jack if the connector cable is barfed up,

hit and git solder so you do not loosen up the pin

[ATTACH=CONFIG]43868[/ATTACH]

BINGO! That is it! Thank you!!!

[Chuck Gibson]

From that pic, low jack white (middle lug) connects via short white wire to tip lug on Hi jack (the one missing it's wire for OP).
Green connects only to Hi jack and lo jack gets ground via chassis.

Got it! I ran a jumper wire from the low jack white lug to the lug with the missing wire and I have sound. I will never understand how that wire came loose from two places and disappeared...BUT... stranger things have happened.. I will disassemble and solder me another wire where it needs to be.

I can't thank you guys enough! You are awesome!

[Enzo]

Your first post answered that. The nut came loose and the jack fell away inside. People tried to tighten the nut at some point and probably spun the jack, tearing the wire off. That would be my working scenario.