Datatrain Resurection

Hi

So while cleaning the basement I came across my old Datatrain DPC-1000, its a PC/XT 8088 at the blazing speed of 4Mhz. Wouldn't you know it the battery had corroded and destroyed some traces around the Battery circuit, but after soldering in a new battery and a couple of new resisters/diodes the PC posted with only one beep (Good).

(not pretty)

After assembling the PC I added in the EGA Wonder800 card and my WD MFM controller.


But here is where I have run into some trouble... I have the original documentation (hee hee) and set the proper jumpers on the EGA card but it is only outputting these horizontal lines... now this is NOT a new behavior for this PC as when my parents purchased the PC for me in 1988 it had the same issue. I vaguely remember it taking me months to get it working (I was only 13 at the time ) and I was not really sure what I was doing. Here is what the screen looks like.



If anyone can offer any suggestions I would appreciate it, I do not have access to other 8-bit graphics cards or TTL monitors, but I am trying to hack together a cable to hook into my old NEC Multisync.


This is the machine that began my love of computers and I am looking forward to getting it in running condition again (after this one comes the WANG mini I got from C.F.B. Nanaimo when they closed the base)... Thanks for any help!!!

Well, although I have a DPC-1000 and a DPC-2112 (both of which I use as test jigs), unfortunately, my last EGA Wonder 800 just went to a company in Germany, so, I can't really test it out and see if I can advise you any longer.

That's a pretty weird pattern and I can't say I've ever seen anything like it, especially seeing as there is no text whatsoever. What kind of monitor are you using?

I do have a Paradise EGA card though and a monitor that takes EGA input, so, over the next couple of days, I'll see what I can do about hooking it all up and seeing what I get,

Thanks for the reply Druid6900

I am using the DC353S EGA monitor. The image is always slightly different, sometimes with a faint cursor ticking away with the RAM check. Even in text mode the monitor just displays the pattern only in green/black. I am hoping someone goes... "oh yah its just ***" otherwise I will have to start looking for weak solder joints. Thanks for taking the time to check druid6900 .

Oh and if you know, could you tell me what the DIP SWITCH settings are that are on the back of the DPC-1000 motherboard?

Try setting the 800's switches to "EGA" per the web site http://www.uncreativelabs.net/hwinfo/ati.htm

modem7 said:

Try setting the 800's switches to "EGA" per the web site http://www.uncreativelabs.net/hwinfo/ati.htm

Click to expand...

Hi, I have tried a couple of these already, I have set the switches to EGA (because I have an XT I have to change switch 5 and 6 to ON according to the Notes section, it didn't work so I tried it the other way) then I have tried it with and without the switch 8 "Enhanced" mode. Jumpers on the card are all set correctly.

Thanks