#1
Everytime I play I have to jiggle the amp cable jack, the one thats on the guitar, otherwise it cuts out. Even when I move around, then the sound will come in and out. So I sent the guitar in for a service, and told him about the issue, and he says it should be alright now. But it isn't. From what I can make out though, is that the guitar's wiring is all good, but the cable jack is screwed up. Anybody have any ideas?
#2
Try a different cable - it may be that that's screwed.

If that doesn't work, take it back to where you had it serviced and get them to do it properly this time, as they didn't do it right originally you shold be able to get it done free this time around.
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