Okay, I got a scan of the video PCB from Duncan and it looks like my
total chip count now is 27 for the content of the ASIC... 25 Standard
TTL and 2 PROMs.
I will post status as I come along.
Jess Askey wrote:
> this is the PCB that duncan had... I traded him for it... it has no
> large video/graphics ROM's on it (the CPU PCB has all the ROMS) and
> all the PROM's are the same as production. The ASIC is implemented in
> TTL. The board is not solder masked and has several hand fixes on
> traces etc. It must be a late prototype boardset. The CPU PCB that I
> have with it is a stock I,Robot CPU PCB.
>
> Unfortunately, the CPU PCB is bad in my set. I 'borrowed' a couple
> other CPU PCB's from Duncan so I could troubleshoot this as the
> problem lies on the CPU and not the video boardset. I should have
> borrowed an additional video PCB (production) so I could compare
> better but I guess I wasn't thinking that far ahead.
>
> thanks
>
> jess
>
>
> peter jones wrote:
>> let me get this right,
>>
>> you have an iceworld pcb,
>> and it's different or has a discrete version of the video-chip?
>>
>> i have an irobot pcb that was stickered as iceworld with no
>> differences at all, so you must have an early prototype.
>>
>> what does it play, does it have iceworld eproms on it???
>>
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Received on Sat Sep 2 01:47:22 2006
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