Recent content by roelofw

Got the card working in one of my 5155's! My 'original' sixpack expansion card didn't work. I replaced the chips from the sixpack. Now 640kb again. No further documentation found, but no further need for it

I found a company in the Netherlands who sells EEproms, and can also program it. :cool: Which eeprom I need? Is this the correct one ? https://www.heinpragt.nl/?product=tms27c64-12jl-eprom-2764

Thanks for the reply. The fact that the beep hadn't to do with the high voltage was also my first initial thought. No, I read about it, and I wished that I had the materials to do that. I think (and do hope) that the diagnostic ROM will give me some clue about the real problem. I thought...

Sorry that it took a few days before I could work on it again. I've measured the voltages while connected to the motherboard and the HDD + FDD: The white gives -10.5 The blue -16.10 The voltage is constant. No drops after power on. The others are in range.

Thanks for your quick reply! Yes, exact the same beep. Even if I remove all the cards out of the slots. You are right. The reason of 'I think' was because it was a while ago that I measured the voltages. I took today pictures of all the voltages: Red 1: 5.57v Red 2: 5.58v Red 3: 5:57v...

Hello, For many years I do have a VTech laser Turbo XT, which I would love to repair. The PC did worked fine. For many years every now and then I booted the system. (Only twice a tantalum from a card was blown, but that was an relatively easy fix) But.. the system will not boot any longer. I...

Any information on this card?