Analogue-sequencer

>   Well, I dug in today to try and figure out my display issue.  Ive 
> got V+ around 4.9v at pin 2 and the display brightness V+ is there at 
> pin 3 which varies with the trim pot.
> 
>   The P3 does boot up, and I can run it (tribute to Colin when 
> something as complex as this is also simple enough to run without a 
> display:)
> 
>   Anyway, is there anything else I could check?

I'm pretty sure you've got a dead module.
I'd say it was the driver circuitry rather than the PLED matrix itself.
Excessive brightness causes a more rapid reduction of the PLED pixel output,
but I don't think it would be to blame for the failure in this case as teh
fading affects each pixel depending on how long it has been switched on for.

>   Anyone in the US know where to get an 88x44mm LCD in blue or red or 
> something exciting?  

The white on blue modules I've got now look like this -
http://www.sequentix.com/images/p3-lcd-blue.jpg
They do look nice, though still not as nice as PLED, and without the
instantaneous response time.

The makers page is here...
http://www.lcd-module.de/eng/doma/doma.htm

Unfortunately they don't list a US supplier, but the outline of the module
is a standard type, so you should be able to find something similar.
LCD modules are quite a bit thicker than the PLED module, so you need longer
mounting screws and spacers to fit the mounting posts in a production case.
Earlier PCB sets may also need a little bit of width shaved off the function
key board.

Best regards,
Colin Fraser
Sequentix Music Systems Ltd
http://www.sequentix.com