Recent content by mapomme

Thank you all, I'll keep you posted.

Thank you tigerstorm to encourage me. Sinve the last post, I may have an other idea. I have an other mubus graphic card, when I plug it on the slot C sometime the mac does not start. Now I suspect the nubus bus. When I recapped the logic board, I notice some corrosion on the UH1, and it seems to...

Interested too - no pressure 😁

Well... I made some progress, I changed the crystal, and now each time the mac boots correctly and loads Mac OS 7.6.1 in black and white mode. Unfortunately, it usually freezes few seconds after the "desktop" is fully loaded. Several times, I was able to go to monitors control panel, and try to...

Hello, sorry for the late reply, I'm using that kind of thing. Very convenient. Sensor Sony IMX307, 100x

I turned around U501 and took pictures as you suggested, for reference I also took a picture (IMG_0007) at the opposite of the crystal location. I'll conduct few continuity checks later on and I'll probably give an IPA bath to the whole thing. I agree the crystal casing looks bad. I'll try to...

C502 looks good. Also, I tested it "in situ" and for what it worth with my multi-meter : no shortcut. I gave a bath to the EPROM, and tried again : same issue. Except that once I got a crash sound of the mac. Can I try without the EPROM ?

thanks, for you replies, I appreciate. please see high resolution pics as suggested, it's the best I can do for now.

Thanks for the advice, all pins are ok. I made a detailed visual inspection, can't find/see anything wrong. One easy thing might be the replacement of the 30yo tantalum capacitor.

Hello, I have a IIci (20Mb RAM, BlueSCSI, fresh reccap + new power supply) with Mac OS 7.5.5 working fine. Just bought a Radius Precision Color 8-24X (unknown condition) and I'm not having expected results. I tried it in different slots with the same issue. The IIci starts, sound is ok, usual...