Members SLY_Z_28 Posted September 24, 2010 Members Share Posted September 24, 2010 Amp turns on and LED work on amp and on the footswitch. no sound. guitar works. guitar cable works. speakers work. All work with another amp. If I put it on channel 3 the sound is very very quiet, i mean your ear on the speaker to hear it quiet. clean channel and overdrive channel do not work it seems. Amp was working one day and just died. Any tips, tricks, diagnoses? Link to comment Share on other sites More sharing options...
Members cavemanic Posted September 24, 2010 Members Share Posted September 24, 2010 sounds like a component failed but I have fixed quite a few with bad solder joints which can have a very similar problem I'm not an amp tech thou...just an electrician Link to comment Share on other sites More sharing options...
Members Das Booty Posted September 24, 2010 Members Share Posted September 24, 2010 replace the preamp tube? Link to comment Share on other sites More sharing options...
Members Murdoch Posted September 24, 2010 Members Share Posted September 24, 2010 The fact that its power section is solid state could make any number of things. Could be a bad solder joint, could be a short in the wiring, etc. I would definitely take it to a tech and see if it could be fixed on the cheap. It might just be cheaper to buy another one, honestly. Valvestates aren't very expensive, and paying for labor may not make it worth it. Link to comment Share on other sites More sharing options...
Members SLY_Z_28 Posted September 24, 2010 Author Members Share Posted September 24, 2010 replace the preamp tube? I did try that, nothin Link to comment Share on other sites More sharing options...
Members SLY_Z_28 Posted September 24, 2010 Author Members Share Posted September 24, 2010 sounds like a component failed but I have fixed quite a few with bad solder joints which can have a very similar problem I'm not an amp tech thou...just an electrician If i were an electrician...what would i test? Link to comment Share on other sites More sharing options...
Members Krank'N Posted September 24, 2010 Members Share Posted September 24, 2010 Find a friend with good home insurance -drop it there for a couple days and then claim it was hit by lightning ! Then buy a good amp. Link to comment Share on other sites More sharing options...
Members Benjamin3156 Posted September 24, 2010 Members Share Posted September 24, 2010 I have a friend who uses a VS100 and it does the same thing. Through trial and error he noticed that when it went out he could fiddle with the loop level pot and it would come back. I don't know how or why this affected anything... but apprently there's some correlation there on his. Try it and let me know if it did anything. Link to comment Share on other sites More sharing options...
Members SLY_Z_28 Posted September 24, 2010 Author Members Share Posted September 24, 2010 Find a friend with good home insurance -drop it there for a couple days and then claim it was hit by lightning ! Then buy a good amp. hahaha! i have a mark iv already..this is my practice amp Link to comment Share on other sites More sharing options...
Members peavey_impact Posted September 24, 2010 Members Share Posted September 24, 2010 try putting a short cable inside the fx loop(s) Link to comment Share on other sites More sharing options...
Members SLY_Z_28 Posted September 24, 2010 Author Members Share Posted September 24, 2010 I have a friend who uses a VS100 and it does the same thing. Through trial and error he noticed that when it went out he could fiddle with the loop level pot and it would come back. I don't know how or why this affected anything... but apprently there's some correlation there on his. Try it and let me know if it did anything. loop level pot on the front of the amp? which channel did he try this on? Link to comment Share on other sites More sharing options...
Members Sixtonoize Posted September 24, 2010 Members Share Posted September 24, 2010 try putting a short cable inside the fx loop(s) This. I had huge problems with the FX loop in my VS8200.The jacks they used in the VS series get dirty really easily. Link to comment Share on other sites More sharing options...
Members Benjamin3156 Posted September 24, 2010 Members Share Posted September 24, 2010 loop level pot on the front of the amp? which channel did he try this on? I was thinking it was on the back, but the VS100 pictures on google have it on the front. I dunno man. Give them all a shot. Peavey Impact and Sixtonoize seem to know more about this than I do, though. I'd take their advice first. Link to comment Share on other sites More sharing options...
Members SLY_Z_28 Posted September 24, 2010 Author Members Share Posted September 24, 2010 This.I had huge problems with the FX loop in my VS8200.The jacks they used in the VS series get dirty really easily. how do i do this, step by step please? pictures would be awesome! Link to comment Share on other sites More sharing options...
Members Sixtonoize Posted September 24, 2010 Members Share Posted September 24, 2010 Just take a short cable with 1/4" ends and put it in the FX loop.If it makes your amp sound all better, then the loop jacks are dirty.If it doesn't make a difference, then you have a bigger problem. Link to comment Share on other sites More sharing options...
Members Neilrocks25 Posted September 24, 2010 Members Share Posted September 24, 2010 Just take a short cable with 1/4" ends and put it in the FX loop.If it makes your amp sound all better, then the loop jacks are dirty.If it doesn't make a difference, then you have a bigger problem. I came into say this. Link to comment Share on other sites More sharing options...
Members cavemanic Posted September 24, 2010 Members Share Posted September 24, 2010 If i were an electrician...what would i test? because most of the ones that I fixed it was an intermittent fault , sound coming in and out and stopping , then working fine I would flex the boards a little to kinda locate where the problem was . then look at the solder joints in that area and redo them if you are not an electrician I wouldnt advise to do this because even with the amp off the caps can store a nasty voltage you could try taking a cord from the preamp out into another amp if it has one and that would probably let you know if it was there (no sound still) or if sound comes out, possibly the power section of the amp Link to comment Share on other sites More sharing options...
Members Shask Posted September 24, 2010 Members Share Posted September 24, 2010 I was gonna say the tube as well. Plug the guitar into the FX return and see if you get decent clean volume. That should tell you if it is in the preamp or power amp section. Link to comment Share on other sites More sharing options...
Members SLY_Z_28 Posted September 28, 2010 Author Members Share Posted September 28, 2010 I was gonna say the tube as well.Plug the guitar into the FX return and see if you get decent clean volume. That should tell you if it is in the preamp or power amp section. all else failed...ill try this Link to comment Share on other sites More sharing options...
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