Search found 28 matches

by GozdniJezek
12 Jun 2019 13:56
Forum: GENERAL DISCUSSIONS
Topic: MTX 512 (debugging thread)
Replies: 73
Views: 15497

Re: MTX 512 (debugging thread)

Apologies, the current state of the machine is: I have not changed the configuration of the memory (it runs in 64 mode with that weird doughter board). The only change has been general cleaning of the pins. You're not bold, i'm preaty shure you all have vastly more experiance than me, and you have m...
by GozdniJezek
12 Jun 2019 10:46
Forum: GENERAL DISCUSSIONS
Topic: MTX 512 (debugging thread)
Replies: 73
Views: 15497

Re: MTX 512 (debugging thread)

Sorry for my ignorance, can you please elaborate what R10 is and where might i find it? Is it a resistor or something else? It would seem, it would be a good idea to check the voltages on the board at this point. Thank you.
by GozdniJezek
12 Jun 2019 10:16
Forum: GENERAL DISCUSSIONS
Topic: MTX 512 (debugging thread)
Replies: 73
Views: 15497

Re: MTX 512 (debugging thread)

Hello, yesterday i was again thinkering with the machine. 1.As promised the picture of the underside of the custom PAL board. IMG_20190611_155201.jpg IMG_20190611_160810.jpg 2.) I have cleaned all of the socked IC pins and made some progress: IMG_20190611_170054.jpg IMG_20190611_165815.jpg -at the b...
by GozdniJezek
10 Jun 2019 14:16
Forum: GENERAL DISCUSSIONS
Topic: MTX 512 (debugging thread)
Replies: 73
Views: 15497

Re: MTX 512 (debugging thread)

Thank you for the answers. 1.) If that will be ready to use or as a kit with all the components (preprogrammed ROMs) I would be interested in purchasing it. 3.) I will check the manual thank you both. 5.) I would like the high level schema (i'm not shure if this is the correct term for it), so i can...
by GozdniJezek
10 Jun 2019 08:56
Forum: GENERAL DISCUSSIONS
Topic: MTX 512 (debugging thread)
Replies: 73
Views: 15497

Re: MTX 512 (debugging thread)

First of all, sorry for late reply and thank you for your answers. 1.) Regarding EEPROMs it sounds like a good idea but the friend does not have an EEPROM burner yet. So this suggestion will have to wait, I'm also reluctant in modding the machine before i get it to a working order. (However i saw so...
by GozdniJezek
08 Jun 2019 11:11
Forum: GENERAL DISCUSSIONS
Topic: MTX 512 (debugging thread)
Replies: 73
Views: 15497

Re: MTX 512 (debugging thread)

4.) PL50?? (middle one from the three, right of Z80)(i can't read the schematic- where can I find one in hi res?) has been replaced at some point as the soldering marks are clearly visible. IMG_20190604_115706.jpg IMG_20190604_115713.jpg 5.) When i turn the computer on i get the following picture on...
by GozdniJezek
08 Jun 2019 11:07
Forum: GENERAL DISCUSSIONS
Topic: MTX 512 (debugging thread)
Replies: 73
Views: 15497

MTX 512 (debugging thread)

Hello, i have recently bought a MTX 512 in untested state, it will need some love before it will be in its full working order and cosmetic appearance. :) 1.) it's missing the left blank key (the q was removed by me prior to taking the picture), if i understand correctly i can replace it with modern ...
by GozdniJezek
08 Jun 2019 09:00
Forum: INTRODUCE YOURSELF
Topic: Please Introduce yourself...
Replies: 22
Views: 9468

Re: Please Introduce yourself...

Hello everybody. I'm a 30 year old software developer, with passion for history from Slovenia. I did not own any original 8 bit in my childhood (my first computer was a 486 pc), but got into 8-bit micros while watching 8-bitGuy, Retro Man Cave and similar channels on Youtube. :) I currently own 2 C6...