I was playing my electric (uke) today and suddenly slowly lost the sound. Then I was trying to get it back, I realized I can get sound if the plug is only halfway in to the input jack. But it doesn't stay in that way, so...
I took the jack out, to see what it looks like... it has two lines (soldered to terminals) going in and inside the shaft of it there are two "hook"-like bent-in metal plates. It appears that I can get a sound connecting to either of the lines coming in, and when the plug is halfway in, it only touches one of the hooked metal plates. (Also it seems that the tip of the guitar cord plug is the active part, and the shaft is not.)
Help! What gives? How does this thing really work? How do I fix it? I could bend the metal plates either way, I tried bending them tighter, didn't work, tried loosening them didn't work.
Thanks in advance!
The socket on the instrument, into which the plug goes, is usually a very simple springy arrangement for the signal side that's supposed to make contact with the plug tip when its inserted, while the sleeve through which the plug is inserted provides the ground contact on the plug's barrel. For this arrangement to work as a means of making the electrical connections BOTH must be making proper contact. If only one contact is present, and its the signal without ground ... then that will usually produce a hum, while if its ground without signal then you'll get nothing at all.
Basically its a job of elimination. Try a different cable first. If still no-go then start to look at the sockets. Sounds like you're already trying the instrument socket. If its the amp socket at the other end then try to prove it by a test using a different amp! Problems with amp input sockets are rather more complicated to sort out, probably requiring a tech, so eliminate the easy things first!!
"I feel more like I do now than when I first came on" (Ronnie Scott, Maidstone)
Yeah, I did check with different cable and amp. Same result.
OK, if I connect with either RED of WHITE, I get signal and hum. Like you said.
If I insert the cord plug in, I get silence. If I got hum, I would understand that one of the connections is not made. But why silence? Should the RED go to tip and the WHITE to shaft, and now both are connecting to tip? Would that be a possible cause?
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