A doozy of a solder problem

[Lane777Turgeon]

Hey guys.
So I repair instruments, but I'm not super strong with electronics. I have this customer who soldered everything using acid core solder.
The neck bridge pickup has stopped working fairly suddenly, with a weak signal.
So, this solder has been on there for years, so it's probably already done damage?
Gimme some ideas to repair this.

 

[LoveThatBass]

All the electronics (pots, wiring, capacitor will have to be replaced. The wiring from the pickups will need to be trimmed back at least an inch until you see bright copper or silver color with NO corrosion to get past the damage caused by acid core solder.

 

[Lane777Turgeon]

All the electronics (pots, wiring, capacitor will have to be replaced. The wiring from the pickups will need to be trimmed back at least an inch until you see bright copper or silver color with NO corrosion to get past the damage caused by acid core solder.

I thought so. Would removing the old pieces ruin my solder tip?