J
John Robertson
Guest
Well, I'm hunting for someone with one of these in-circuit kits that was
designed by Bill Green from Radio-Electronics (Dec, 1987) as mine has
failed to to battery failure on the CMOS RAM. Turned out that the entire
operating system was retained by a single Dallas like CMOS RAM with a
battery in the base (equivalent to the DS1230-140 256K X 8) and the
battery has failed...and I didn't back up the device back when I picked
it up in 2005. It has since sat in storage and when I pulled it out
today to try it out nothing happened and so checking the RAM voltage
found it to be 0.3VDC - not much use now.
Bill Green has since passed away and there appears to be nothing
remaining of the estate pertaining to this device according to a good
friend of his.
So, all I can hope for is someone has one of these small kits floating
around and that it still works and they can read Dallas RAM devices...
In any case, check your old test gear for batteries and back up code!
Link to PDFs on the kit:
ftp://ftp.flippers.com/ALPHA/AlphaElectronics/
John :-#(#
--
(Please post followups or tech enquiries to the newsgroup)
John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9
Call (604)872-5757 or Fax 872-2010 (Pinballs, Jukes, Video Games)
www.flippers.com
"Old pinballers never die, they just flip out."
designed by Bill Green from Radio-Electronics (Dec, 1987) as mine has
failed to to battery failure on the CMOS RAM. Turned out that the entire
operating system was retained by a single Dallas like CMOS RAM with a
battery in the base (equivalent to the DS1230-140 256K X 8) and the
battery has failed...and I didn't back up the device back when I picked
it up in 2005. It has since sat in storage and when I pulled it out
today to try it out nothing happened and so checking the RAM voltage
found it to be 0.3VDC - not much use now.
Bill Green has since passed away and there appears to be nothing
remaining of the estate pertaining to this device according to a good
friend of his.
So, all I can hope for is someone has one of these small kits floating
around and that it still works and they can read Dallas RAM devices...
In any case, check your old test gear for batteries and back up code!
Link to PDFs on the kit:
ftp://ftp.flippers.com/ALPHA/AlphaElectronics/
John :-#(#
--
(Please post followups or tech enquiries to the newsgroup)
John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9
Call (604)872-5757 or Fax 872-2010 (Pinballs, Jukes, Video Games)
www.flippers.com
"Old pinballers never die, they just flip out."