Sharp Twin Famicom controller help

[bobsarmoryseoul]

I've recently purchased a twin famicom and while everything worked fine at first I'utve decided to clean the insides of its controllers as the 2p controller had a buzzing noise because of the dirty mic parts.
After I've successfully cleaned and reassembled the 2p controller and I've done the same with the 1p controller but now my 1p controller's gone nuts.
The symptoms are that it keeps pressing the start and dpad buttons on its own, so the game would start then the game would pause and unpause randomly and the character on the screen keeps moving left or down without me actually inputting those commands.

I've attached some pictures of the controller in its current state and as far as I'm concerned I can't seem to see what's wrong with it.
Can anyone help?

[P]

Hmm this is weird, I got similar results when I made an adapter and had gotten the pins wrong.
What did you use to clean it?

The only things I can imagine happening is:

1) You left something conductive on some pins or solderpad or something so there's a short somewhere. In this case clean the whole controller PCB again using 90% isopropyl alcohol and then let it dry before you turn on the power.

2) Due to static electricity, a shortcut or something else the 4021 IC has gone haywire. In that case you would probably need to replace the 4021.

Eitherway you can always replace the whole PCB with one from a NES controller.

[bobsarmoryseoul]

I've used ethanol they sell at the pharmacy to clean the insides.
But actually something else I've found was that with the controller stripped down when I wriggle the wire the problem is fixed.
This is limited to times when the wire is held at a certain angle and also the constant wriggling of the wire causes button presses to be made.
Could this mean that one of the wires connected to the pcb has been disconnected?

[Pikkon]

The brown wire looks like it has a pinch in it,I would resolder it.

[P]

Yeah sounds like there's a loose connection in one of the wires. The wire could be broken inside or there's cracked solder like Pikkon suggests.

[bobsarmoryseoul]

Thanks for all the replies
I've managed to make the controller work again by twisting the wires that come off the pcb to somehow keep the loose parts in contact and put the casing back on.
I know it's not a permanent solution but I'm just glad I got it to work anyhow.
I think for now this will do because my soldering skill really isn't all that great and I'm afraid I'll make matters worse 

[Pikkon]

All you need to do is practice on a old pcb and make sure to use flux,your controller could very well act up again.