Recent content by MajorMar

Thanks @DJ Sures for asking the question. I was pulling my hair out on this one all day. Also, Thanks @guidol for making that tool! Way better than that old Japanese one.

I picked this up the other day, but I can't find much information on it. The label on the back says "Product Research Organization - Model 1000 Video Typewriter". I have seen a similar one on Ebay, but it was branded CooperVision and had both "video in" and "video out". Mine appears to have...

I just picked this up, but it didn't come with a power supply and I am having a hard time finding a service manual to know the pinout of the power plug. Apparently, it expects 7.5V and 5.6V. I am not sure what kind of DIN socket this is either. Any help is much appreciated.

Well, low and behold I get 14V across C23 while it is disconnected from the main board which is what I expected! I had replaced C23, a few bad resistors, one bad transistor, and a diode in my troubleshooting but didn't see any voltage because I wasn't measuring it correctly. As you deduced from...

I picked up a Teknika MJ-22 Monitor at a recycle center and it's in really bad shape, so of course I am going to see if I can get it going again :) However, I can find virtually nothing on Google in terms of a manual for this monitor or even information about the company. Does anyone here have...

Thanks! I probably would have put 3.3V on there otherwise. I took the time to trace the power connections from the ISA bus just to make sure my pinout was right. Then I hacked up my old ATX PS and tested it out. I am getting the right voltages, but it doesn't boot up. I will play around with it...

So I got a hold of this no-name 286 MB. Seems to be similar to this one http://www.uncreativelabs.de/th99/m/U-Z/33636.htm I want to test it out, but then I realized there were no keyed slots in the motherboard power pin sockets like I am used to seeing with AT systems. The board says PS2 near...

Just a note that may be of interest to others. After considering the hardness issue of latex and examining the paint on some other projects I have done in the past, I decided to try out this latex paint hardener from Crown. You can get it direct or have it shipped to a Home Depot. When it comes...

I am starting down this path as well. After thoroughly cleaning I am still left with monitor rubber feet marks and some bare metal. I didn't know about Pantone 413 so I thought I would try getting some samples made at Ace Hardware just to see if they would match at all. My plan is to match as...

Does anyone have a link to the manual for the Hercules GB200 card? It seems fairly common, but I can't seem to find a copy of the actual manual. Thanks in advance!

Update2: (Solved) It turns out the problem was in the card edge to 34 pin header converter I was using. After testing it on my "newer" PC with similar results it was obviously down to a problem on that converter board. Turns out pin 32 was not making a good connection. Which makes sense in...

I have been working on a problem for the past few weeks and I haven't been able to find a solution. Essentially, I can't get my 5150 to boot from a Gotek drive with FlashFloppy except for 180K disk images (i.e. IBM-DOS 2.11). I have read in the forums that even newer versions of DOS should run...