When i plug my guitar in to my roland cube-20x it makes noise but doesnt pick up my guitar. i have pluged my guitar into another amp and it works so its the amp not the guitar.

SOURCE: Getting Static noise when plugged in to amp

This is a very common problem that I have repaired for many friends. Sometimes the guitar jack becomes loose and gets rotated to the point where the wire breaks and/or touches the cord plug when it's inserted into the jack. You need to remove the access plate/panel at the back of the guitar body and see if the wire is broke or twisted. You may only have to loosen the jack retaining nut and rotate the jack to get the twist out or you may have to remove the jack and resolder the wire back in place. If its broke make sure to solder back on the proper terminal--the one with solder already on it and not the one that the cord plug touches when its inserted. Retighten the jack nut by firmly holding the jack from access side so it doesn't rotate again and cause that undesirable STATIC sound. Hope this helps.

SOURCE: Static Noise from guitar amp.

I take it you have made sure that both the cable to the distortion box from the guitar and the cable to the amp are both good. From the description you give, it sounds like there is no signal getting to the pedal. If the cable is good, then the next likely suspect would be the input jack on the fuzz box. Try wiggling it a little with the guitar cable in place to see if it is loose. Some input jacks are unbelievably cheap and flimsy. A crackling sound (static like) is almost always a bad connection. If it was the output jack, I would think that the guitar signal would come through a least a little bit, but you might want to try wiggling that one, too, if the input jack isn't the culprit.

Another possibility to check is the battery, but this doesn't seem as likely. Some effects units devour batteries, especially units that use 9V batteries. I have a multi effect pedal that kills a 9V in about an hour.

SOURCE: electric guitar pick up doesnt work?

se3veral things have to be ruled out, start with the cord that your using to your amp, is it good? next is the volume on both the guitar and amp also good, the last thing that should be wrong is the pickup itself unless a wire is broken off of it, you can usally check this from somewhere on the back of the guitar, if all the wires are good, check the two volume controls and on the back of the amp check the wires going to the speaker.

SOURCE: Marshall MG10 cd guitar amp picks up radio frequency?

First of all I would call the radio station and let the know that there over modulating just a bit.this has happened to me a few times even on my tel/phone. I use to get WOKO on my amp. You can try and move the amp to diffrent location , reverce the polarty switch on the back , not much more you can do. But watch out when you here music comming from you toster your in big trouble, just kidding. Good luck DFD

SOURCE: Amplifier not working

It is more likely that your input jack component is broken or damage you would have to take it apart because your circuit board may need a look at to check for damage and you will need a new input jack