Recent content by Maccollector

Hi, does anyone know where I can get battery housing terminals replacements ... I took off old corroded one and currently soaking them in the vinegar to remove some of the greenish corrosion

I saw on eBay AB for sale but this one was 120v that was plugged into 240 volts. What is the possible damage here

Oh and I found 3rd one...C37. that must be X2 rifa

Are these Y2 rifas? I believe X2 rifas are thicker ones

will this one do the job https://au.mouser.com/ProductDetail/Diotec-Semiconductor/MR824?qs=OlC7AqGiEDnJbrrCozntTQ%3D%3D

Voltage?

Research suggests it is a 100v 1A diode but my board is 240v does that matter?

Are you talking about CR1 diode above flyback converter?

I have some Y2 riffa caps. Will they be sufficient enough considering this machine will be turned on periodically

I am ordering all electrolytic capacitors, but was curios ( i did not check) what are riffa capacitors values; This is 240v board

I did adjust it and it seems stable I did it without proper tools.. and it goes like this. Turn the screw, start the mac, check voltage . One thing is that my 12v rails now sits at 12,7. Does this point out to capacitor issue?

And for the record, 5v rail at floppy connector sits @ 4.5 but does not fluctuate during power cycle. 12v rail sits @12.01 at wholes 7 & 8

So those thermal images do not seem out of ordinary .. Only asking as I don't know what is getting hot. If a leave it off for a while it will boot and stay at floppy drive with question mark logo for few minutes before starts power cycling Where and how to check voltage if you can tell me please

Also I am trying to upload a 7 sec vid will this link work

I have recently obtained Macintosh plus in a poor state . After cleaning corrosion from the analogue board , board ran fine but now it seems to be power cycling when it get hot, Some diodes are getting very hot and resistors. Are these meant to get hot or not. I have some thermal images and...