I would check the two 10uF caps that sit on the -5V line in the analog
section and replace - they always seem to be bad. There are two further
ones on the +5V that should be replaced too. I would personally just
replace all the electrolytic caps to eliminate them as a source of the
problem.
The -
Thanks
I have re-inspected the traces around the power supply caps and it looks clean,
I have also used lots of IPA and Q-tips to clean the area anyway but still have
the issue. I actually do see a low resistance (from 7 ohms to a couple hundred
ohms) from VEE to Ground, even with display disco
