View Full Version : Wameco (WMC) CRT-1 video board - looking for a manual and information

Frank S
October 30th, 2014, 10:22 AM
I got an mostly unpopulated Wameco CRT-1 board from eBay.
This board contains a Z80 processor and an EPROM, 6845 controller, CRT8002 Character Gen, RAM for the processor and RAM for Video.
Without an manual and the code in the EPROM it is impossible to get this board to life.
Anybody there has information about this board?


October 30th, 2014, 10:26 AM
FWIW, I took a look over on s100computers.com, and they have a picture of the board here:


Sadly, no documentation there, but perhaps if someone looks at the board they may recognize it.


Frank S
October 30th, 2014, 10:30 AM
Here is an picture of my board.

October 30th, 2014, 11:44 AM
Looks just like the video board on the page that SMP posted. You might try some of the mailing lists (cctalk, N8VEM, etc).

Frank S
February 1st, 2015, 11:11 PM
No luck with getting the manual.
But i got a second complete board with EPROM.

February 2nd, 2015, 12:02 PM
Hi All;
I You were me, is it if I were You..
May I suggest, at least Documenting What You do have and do know..
Write out on Paper or whatever, What Ic is in each U number.. and its flavor, Plain, LS, etc..
Also, If You can't Read the Eprom, ask and have someone who can read the eprom for you and Document it contents, and tells us what the Eprom is, 2716, 2708, etc..
At least that would be a step in the right direction, for everybody..


Frank S
February 2nd, 2015, 10:26 PM
Hi Marty,
That is also that what i want to do.
I have read the EPROM data first (see attached files) and do a first raw disassembling.
HEX-FILE (www.schieschke.de/Wameco/WMC_CRT2_JAN_30.hex)
ASM-FILE (www.schieschke.de/Wameco/WMC_CRT2_JAN_30.asm)