If i had to guess, i think c0ckroach poo killed your gauge! There is suspecious matter inside that when mixed with moisture may have been a catylist which has done some damage to the copper on the PCBA. The suspect area has been repaired but im hesitent to force the needle off the meter for further inspection under that area as its resisting removal. It has the voltage regulator section of the circuit under there but w/out being able to get the needle off the dial, inspection for further damage / cleaning / repair is impossible.
So, are there c0ckroaches in those parts? If so, :Flip:
So, are there c0ckroaches in those parts? If so, :Flip: