Recent content by jmellidg

Hi thanks for your answer. After days of fight I realized that the problem was in the HD configuration. I changed two things, the scsi ID from 1 to 0, and a parameter to start the disk always or just when system call. I'm not an expert in scsi business but now works. Thank you very much 

Hi, I've recently repair a LC III macintosh. It had a 500 Mb Quantum Apple disk, but ir doesn't work. I change the disk with an IBM 1 GB. I tried to install several times system 7.5, and I did, but when I shut down the computer, the HD didn't boot up. I have to start up from a diskette and then...

Hi guys, I need your help My problem right now it's a "whup-whup" or "flup-flup" noise when the mac is turning on. I'm going to tell you the story I bought a macintosh 512k with a dove MaSnap (scsi and memory) expansion card. I'm an european 220 V user and the Mac Power Supply is 110 V. I use...

Hi, thank you for your fast response, I test several times to power on the 512 changing the SIMMS in the macSnap, try to reinsert the ROM chips, I think that I startup the mac at least 4 or 5 times with no issue. My first problem was when I swap the logic boards. As soon as I get home attach...

Hi, I'm a vintage macs loving and I'm very proud of fix a lot of 8 different classic macs (reading the great books of Larry Pina!!!). I have skills in soldering and I'm learning about electronics by practice. Until now, I have a high degree of success!! until now. I'm the owner of a 512Ke that...

Today, when I returned home, the mac works fine, at least for a couple of minutes. I'm going to resolder J1, L2, C1, and the flyback... anything else?

Hi Everybody I'm learning to fix old macs, and this time I work in a very well looking SE. The problema was a tinny brilliant unique vertical line in the middle of the screen. I thought that the problem was the conventional one, related with a bad solder or capacitor in the analog board...