luismcr wrote on 2020-08-27, 13:14:Viva, […]
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Xicor wrote on 2019-09-27, 17:15:Managed to pickup this goodies : […]
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Managed to pickup this goodies :
Sim_Check.jpg
A DRAM tester, and a very good at it. The cool thing is that it has a NEC v20 inside ....
Sim_Check_02.jpg
"don't turn it on, take it a part"..... Had to, 110v tranny had to be replaced.
Also a ultra rare diagnostics card for Schneider Euro-PC .... maybe 2 of them of different test types :
EuroPc_diag_mod2.0.jpg
EuroPc_diag.jpg
A PSU for Schneider EuroPC .... in good condition:
EuroPc_PSU.jpg
Viva,
Chamo-me Luís Rodrigues, sou de Santarém e tenho um EuroPC avariado que não consigo dar com a avaria.
Já perdi imenso tempo com o mesmo e estou quase a desistir de repará-lo.
Pelo que vejo no seu post tem duas placas de diagnóstico para o Euro PC .
Está interessado em vender alguma ou eventualmente alugar uma delas para eu tentar uma ultima tentativa de raparo do mesmo.?
o meu email é lusimcrodrigues@hotmail.com
Com os melhores cumprimentos,
Luís Rodrigues
Hello Luís, I'm going to respond in English so I don't break the rules.
Unfortunately I'm not interested in selling, and I doubt the utility of the card because i think they are intended to test the first variant. The diagnostic cards assumes that the machine maintains a limited capability (that's why they have roms), similarly to the ibm Supersoft/Landmark Diagnostic ROM's (http://www.minuszerodegrees.net/supersoft_lan … dmark%20ROM.htm). In my 2 machines the damage was so sever that they fail to execute.
The second iteration of the euro PC has a lot of differences that may play against :
1 Memory "encoding" (not really but different glued logic) of 640k
2 The "big jim" (cpld of sorts) that controls setup of video modes,joystick/mouse port, and select lines
3 U7 (also cpld of sorts), that I don't have a clue of the function
4 keyboard/reset controller (68705 masked microcontroller in my euro-PC)
5 The Euro-pcII has a strange dc-dc converter onboard
And the most important reason is that I'm still working on a new MB for the Euro-PC (not the II). I will have some goodies coming in the next month that may push to the conclusion of the project. I will create a new topic as soon as I put my Frankenstein of a programmer working correctly to burn the 68705-u3.
Be patient, don't give up! Just to make a new MB I had to check every single via and pad multiple times, and still managed to make some mistakes , but then again, that's how you learn.