I'm in the processes of restoring a TRS-80 model 4 gate array and have located one of the problems causing the system to hang at startup and only show garbage on the screen. The FDC timing chips is dead and sends a hold signal to the CPU which was also bad …

Found this interesting article today, some guy figured out how to make DIY rom chips and refresh them at will.https://www.downtowndo... …

System was intended for use in retail outlets.Back in the day, Nintendo issued demo units to retailers which allowed them to show off multiple NES games on a single system. The Nintendo M6 is one such example.The M6 is comprised of a central console which …

I'm still working on my nemesis mb. I keep going back to it and I have been gradually testing and fixing issues over the course of 12 months. The nature of the fault has remained the same in that I get a continuous beep. I think the board at some point ma …

$130 plus shipping. Offers welcomed as I am unsure on price, most seem to go for around $140-$150 range. Just want to be fair in my price for the community. This unit is very clean. Would not mind a trade towards someone's spare supergun if possible . B …

My Cruis'n Exotica came to me with a dead PCB (missing some ROM chips so not for sure), got a replacement that works. Also, the installed steering PCB was for a Cruis'n USA (of course that didn't work). It had the original Cruis'n USA …

HiAfter a bit of a break from messing with BBC’s I’ve got to the point where I want to try and get mine working.I spent lots of time (years!) trying to fix a friends one, and got so far, but learnt A LOT.Now to mine. After I refurbed the caps in the P …

Can you fine folks help me out with this? I'm not sure what to even ask for this, but I'd like to see it into the hands of someone that will use it! Thanks! …

Can you fine folks help me out with this? I'm not sure what to even ask for this, but I'd like to see it into the hands of someone that will use it! Thanks! …

I am working on a Franklin Ace 1000 Apple ii+ clone that I picked up recently. While I have successfully repaired several other systems, I have never owned or worked on an Apple or clone system previously. Before booting it, I installed a new power supply …

Hello! As the title states, I'm looking for some help flashing a pair of EPROMs for my SX-64. I recently picked this machine up, but the ROMs for the kernel and floppy were missing. I can only assume that the previous owner had JiffyDos, or something simi …

Hi all, me again. I am really appreciative of everyones help with things so far. Unfortunately one of my problems got worse!  The machine has never liked sitting since trying to resurrect it, if I leave it overnight unplugged, the next day it will often …