Recent content by Ruud

Is there a possibility to scan it, please?

The PC10/20-III does output POST codes on the LPT port. So you can see if there is changing something. Change = life. If there is no change, you can pull line A10 of the ISA bus, IOCHRDY to Ground -before- powering the system up. This will stop the CPU right at its first instruction at address...

FYI: in the Netherlands TV broadcast over the air has been stopped years ago. And you only find a few FM radio stations. Most use DAT now.

That was already announced HERE.

Very interesting, thank you!

A 25-pin to 9-pin serial cable? I only see one pin in the bottom row and I expected at least two, 7 = RTS and 8 = CTS. I don't know if Commodore Made/rebadged modems. If so, there is a possibility. Regarding a video connector: vertical sync would be missing.

Weird, I disassembled the board so I could add an 8087. I had to disassemble it because the holes were all filled up with solder. If I had seen a battery, I would have desoldered it. Must check it again.

Thank you for the good explanation!

I forgot to answer that one: it is a connector to attach an external floppy disk drive. Floppy - flex(ible). But no idea where to find one.

If I understood correctly it is a RAM-drive. I'm still busy figuring out how to operate it.

I read there were complaints that these sources did not assemble. I found this YouTube movie explaining how to do it. I would like to repeat it but I'm not a Linux user. At 01:50 a sed command is used to replace some bytes with something else. But I don't understand with what exactly. Can...

The few pictures I found on internet were vague but at least I know now it is a SBC. If you have better pictures, please share them. Then a warning: the 6530 was a Commodore made custom IC and the ones you found don't have to be ones for a JOLT. Anyway, if others are interested in your replica...

Nowadays IMHO the most likely culprit is the PLA.

Some time ago I found the sources of TP6 and yesterday I decided to try to recreate TP6. It seems several TPUs are missing and so far I was able to recreate them, mostly with the help from PAS files from TP5.5. But I got stuck on Views.tpu. The only one I have is from Turbo-Vision and is not...

I have never heard of this machine, something American? Links would be welcome. IMHO at least schematics are needed. Or a machine that can be re-engineered. And what is known of the software? Once known, the hardware can be discussed. (No, I don't need another projects but I'm always tempted by...