WTD: TMS2532, HN462532 or 2732 EPROMs

From: Philip Pemberton <philpem_at_dsl.pipex.com>
Date: Sun Dec 22 17:54:00 2002

Ethan Dicks wrote:
> --- Philip Pemberton <philpem_at_dsl.pipex.com> wrote:
>> Hi,
>> Well, it looks like the deadbeat seller who was supposed to be
>> selling me the HN462532 EPROMs has vanished...
> Ow! That sucks.
Indeed it does...

> I have a quantity of used 2732s available, but you will probably be
> happier with 2532s (less work). They are available from BG Micro for
> $2 each...
Complete with a $15 shipping charge. Oh, *great*. This just keeps on getting

BTW, does anyone know what the current consumption of a "raw" Jupiter Ace
is? Mine's drawing about 700mA from the mains PSU. I've repaired a load of
PCB tracks and pads with 30AWG wirewrap wire and I've succeeded in getting a
constant display. It does alternate in some areas, but the chip select out
pin on the LS138 (the one that goes to the video RAMs) is pulsing, so I
guess that's normal. The machine demonstrates no reaction whatsoever to
keyboard input. Grr... If this continues, I'm going to raid what little I've
saved up for a new monitor and use it to fix this annoying machine. I shall
not be beaten by a chunk of fiberglass, copper, silicon and plastic! I still
need five case locking pins though. Anyone got a dead Ace (I'm thinking
cooked tracks or cascade failure) that has a full complement of case pins.
If all else fails I'll add a pack of 3mm nylon bolts to my Farnell order...

Received on Sun Dec 22 2002 - 17:54:00 GMT

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