emulatorII-list

Hi
The recommendation to clean IC contacts is well off base. It is far 
better to try and diagnose the problem than attack all the chips. Did 
you take some/all the chips out to clean the pins? Possibly bent a pin 
or a chip the wrong way round? What was the original problem? As it will 
still be there...

Your EII is failing to boot from main EPROM. I would suggest starting 
with the power supply, is it providing all the correct voltages, are 
they present on the motherboard? Check the CPU and EPROM chips are 
correctly seated the right way round. Is the PCB dry and the alcohol 
gone, no shorts? Its very easy to disturb the power supply cabling 
especially on the power suppy. Be very careful as mains voltage will be 
live inside the EII. If in doubt find a good synth tech to do a repair.

Please be careful there are 7000 dollars of electronics in an EII, its 
one of the most complex electronic instruments ever made (except for an 
EIII)

Best Regards
Rob
www.emulatorarchive.com



On 14/02/2011 21:52, xxxdavidmaysxxx wrote:
>
> I'm sorry for sounding noobish, but I truly am. I really need help and 
> I'm deeply upset over my EII. I got it yesterday, it exibited some 
> problems so after reading some forums telling me to crub all the IC 
> contacts with alchohol I did. Now it doesn't do anything. When you 
> turn it on, all the leds come on, the display has all black boxes in 
> the first half of the screen and the disk drives don't do anything. 
> Its obviously an issue with the main CPU or EPROMs I'm guessing, but 
> what do you all think? Have I completely ruined it?!?
>
>