Hi, this my first message here on the list and so I may say
"Hello, It is nice to be able to join so uncomplicated to this list and to
be able to exchange itself with you over the miraculous computers of the
Some of my systems are shown at www.8bit-matrix.net
<http://www.8bit-matrix.net/> . If you would like then do not hesitate to
have a look at you them there.
But now my actual problem.
I have a SuperBrain in my collection which has an electronically problem. So
I need the schematics for repair. I found some on the net but these are
really unreadable because they are scanned in very low resolution an
When I have gotten the system the keyboard decoder chip (KR3600-XXX) was
death. After I have installed a replacement the SB becomes running. After
few minutes this chip was broken again and the screen driver was possibly
gone with it.
I have some experience and equipment to figure out electronically problems
for repair. But without a readable schematics it would cost to much time.
So I'm full of hope that someone here supports me to getting back this
system to a proper and running state.
By the way, is there a replacement (self-made GAL-XXX eg.) or source to get
one original KR3600-XXX chip?