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Here is the CP88 EPROM image. Both of mine are identical.

I never recommend shotgunning a repair. The chances of doing more damage is always there. If you add a new problem, by breaking an unseen trace or...

Just curious if your Model 1 rev G Motherboard had Version 1.3 ROMS. I updated my Older Model 1 from Ver 1.1 ROMS to Ver 1.3 ROMS to get rid of...

8088 IBM: http://cgi.ebay.com/124544943121 8088 IBM: http://cgi.ebay.com/203261342009 386 IBM: http://cgi.ebay.com/124544957272 486 Generic:...

Thanks! I definitely appreciate it. I have uploaded high resolution photos to this iCloud shared album. I wish that I could just post high res...

Sure, not a problem. I'll get right to it.

Sorry for making so many posts in the thread - but I had a 'hunch' regarding the video problem and it seems to work out. The RAM containing the...

Just had a thought and checked the specifications. The N* Advantage uses hard sectored disks. Do you have any of these? If not, they are now...

Kaypro's are by far the easiest to find, and the monitors are not that small. They are really perfectly clear and large enough to see, even for us...

All I need now is to find the external hard drive and we could be “Cooking on Gas” ��

Don't know how easy it is to find a Rainbow, but you could also look for an Epson QX-10 Z80 (CP/M 2.2) or QX-16 Z80/8088 (CP/M & MS-DOS) if you want...

Would replacing the two diodes be a shot in the dark attempt at a fix for someone not skills in troubleshooting this problem?

Hallo I'm reopening this old discussion because I read that you have the disk for M111. I would like to have a copy of it. Also, I've read that...

I am between meetings at the moment. Assuming BASIC4 (and a non-CRTC machine) - here is a simple test program: Source: ORG $E000 ; EDIT...

Alignment is an issue but not much of a problem in the short term. The machine could still write a floppy that it could read it just wouldn't be...

I think they are writing, not reading but all the RAS/CAS etc are OK. Now they would only WRITE not READ if you had a short to ground on nWE... so...

I am looking at the schematic. Which chips did you move around? I assume that the RAM chips are in sockets then? There could be a number of...

Just had a look at the User manual. You should get the message "LOAD SYSTEM" on first powering up. Hit the <RETURN> key to boot from drive #1...

"Thank you for visiting Mitsubishi Electric's global website. This is the webmaster of Mitsubishi Electric's customer support department. Since...

Excellent. You're awake early! I assume you are using BASIC4? It matters as the entry point into the EDIT ROM is different for each version of...

Looks like it was listed in May 2020, indicating the not so huge demand, and the chance of getting it for at least half price or less.

Yes, I have a burner and 2716s on hand. I don’t know much 6502 assembly but I have an interest to learn and some experience with other instruction...