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
![Banging Head |O](https://www.eevblog.com/forum/Smileys/default/bangheadonwall.gif)
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
![Sad :(](https://www.eevblog.com/forum/Smileys/default/sad.gif)
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