emulatorII-list

I just tried these EPROMS in my working EII and the EPROMS are OK.

Also, if I switch on this faulty EII without either EII fitted, same symptoms. Ie All LEDs on and black blocks on LCD



--- In emulatorII-list@yahoogroups.com, "hazchem88" <analoguesolutions@...> wrote:
>
> Just got an EII yesterday. 
> 1st few times switched on, it got to boot screen, and no further.
> So I opened up, reseated a few memory ICs around what I think is first segment (IC13 area?) - used some deoxit and replaced.
> 
> Then this time, it booted up and all seemed good. A Bank loaded. I then tried to load a bank from another floppy, started loading, then after a bit froze and blanks screen.
> 
> Since then I have removed and reseated just about every IC on the digital board.
> 
> Generally all I get is black blocks on the top row of the LCD, nothing on second. And usually ALL of the LEDs lit.
> about 1/10 times I might get the boot screen, but no further (doesnt try to read discs).
> 
> So in theory most of the machine is OK since I got as far as loading 1 bank.
> 
> Wondering if this is a bad connection somewhere.
> 
> Maybe RAM/Scanner problem?
> 
> Can any suggest anything I can try?
> Which Ram ICs should I check first,
> Any tips appreciated.
> I am very good with electronics, however, not too familiar with EIIs (but learning fast!)
> 
> 
> 
> BTW, oddly, my boot up screen is unique(?)
> 
> 
>   **Emu 3-1 SC ***
> Mulhouse 1-02-90
> 
> custom? maybe just the message has been changed? (maybe Mulhouse is one of the previous owners?)
>