Answered in line below, thanks for your replay. - Jeff
Ju>>st a couple of quick things:
1. Have you tried a cold boot to clear out any bad data in the memory?
Just tried, not change.
2. Is the LCD contrast adjustment working?
Yes
3. If the LCD is going dark it usually means the processor has reset it, if
it did not there would be garbage bits on the LCD, and the beep is a normal
part of the boot. Once it is powered on hit return this should enter
BASIC, then type beep and enter. The unit should beep. This would indicate
the unit is booting but the there might be a problem with the LCD.
The reset line seems to be working. The LCD is in the reset
but not initialized state which is all black.
4. You could also check the Electrolytic Cap on the reset line it may of
leaked too which could impact the reset timing.
C90 is the only electrolytic that seems to be part of the
reset circuitry. I have not changed it and it is of the same manufacture as
the other ones that did leak. Interesting how it is all caps of that one
brand/series that leak.
5. The new NiCd might need some more time to charge up.
The NiCad is removed which I think should be OK as I should
still get VS?
