23 Dec
2017
23 Dec
'17
1:08 a.m.
Hi Mattis,
On Dec 23, 2017, at 12:08 AM, Mattis Lind via cctalk
<cctalk at classiccmp.org> wrote:
Anyhow, the VT52 boards are dead. ? The terminal uses 4 pieces
of 256 by 4 bipolar PROMs for a total of 512 bytes of microprogram.
Has anyone dumped the contents of these so I could verify them?
I have a restored VT52. Taking a peek, I see these PROMs are socketed, so I can pull mine
this weekend and give them a read for you no problem.
I actually had a lot of trouble with a flaky oscillator when I was working through my
VT52, but it sounds like your?s is going fine if you are observing the whole timing chain
including video sync?
cheers,
?FritzM.