Hi all
So managed to dust up 2 old fluke 75 dmm's at 40$ a pop
They were advertised as have drifting vdc messuraments, so in my head worst case I get one Worning out of the del or 2 that has some problem areas but besides that working.
Get Them home and power them on and they are all over the place in all ranges
might just have bought two pairs of really expensive testleads.
I ohmed most of the resistors and none are broken, dono the correct values on them. Then i cleaned the pcb with IPA and put in a new 9v battery. Still all over the place
Looks like the there is some charge building and tjen dropping off.
Any one have any ideas.
The is a big ic on the back that say's fluke on it, please dont tell that have released the magic blue smoke
Lars