Search results

Glad you got it working! One of the brilliant, but maybe overlooked items in that picture is how you placed your board on the bottom of your inverted case as an ersatz bench. Elevated, non-conductive, no worrying about putting the board in correctly each time - nice! Great work with the PSU also!

I use a drop of liquid electrical tape. Like zigzagjoe mentioned, there is enough resistance and the drop just marks it, like obsolete said.

Your favorite search engine should be able to provide results - search for this: Mac 550 Service Source One of the first couple of links shown for me was https://www.macdat.net/files/pdf/apple/servicesource/macintosh_lc_520-550-575.pdf

They definitely are! I've had an eBay search for both, for a while now, but haven't seen one come up yet. (it does get me weekly false positives though)

Cool! The gameplay looks awesome in greyscale!...still kicking myself for not getting a clear case when they were out.

Also, the T2 (transformer) terminals can look brown and be ok, but on the photo here they appear nearly black. Look closely for signs that the windings or attachments could be burned or separated.

"For use with : Apple Macintosh and Lisa." - because no other computer would use 120 volts in the states. ;) Nice job on the board, maybe cover it with UV-curable solder mask, if that's ok for a surge suppressor.

I think its great that we now have the option to do so, if we wish - I have over half a dozen Macs with replacement drives and at least five more 'on deck' to be completed as time permits. But I also have plenty more that keep on chugging away with spinning disks, since some are more durable...

...and yes I bought this in spite of the cost. Back four years ago when I bought these, other SCSI solutions were more expensive than they are now and definitely harder to work with, so in the scheme of things it seemed like a better deal than it would be now. A part of me also wanted to test...

It sounds like you have taken care of everything you can and I was actually hoping for you to have a different PSU, since there is a recap kit for the ASTEC one, which makes sourcing the caps a lot easier. Having a list is one thing, but trying to look them all up, get the right diameters and...

It will need to get re-capped soon. (sorry, but you already noticed the cruddy connections - they are evident in the pictures near the caps) The floppy issues could be that it needs cleaning if you have not cleaned/re-lubed it yet. My II/IIx/IIfx floppy drives all needed this type attention...

Since I have just completed re-recapping my IIx, and I (finally) have it running and starting normally, I have a couple thoughts, but first, I'd like a bit more information - which PSU do you have (Sony or Astec)? Also, it looks like they did not replace the axial caps (they need to be replaced...

Congratulations! Its a Macintosh! I'm guessing most of these need some TLC to keep them running at this point, and you are definitely doing a great job with this one. You handled the memory replacement well, which gave me courage to tackle a fix I was hesitant to try. I just have to add that...

Great, simple, fix. Glad its working again!

Good luck with that and I am really happy to see this potential, additional support! That product saved so many of my original Mac files, and their resource forks as self-expanding archives so they weren't completely lost. I had archived a bunch of things with CompactPro back in the day...

After you have the case open... Seriously, not too bad if you've messed about, changing RAM in the PB line. You will want a copy of the 165c -180c Service Source as a guide, but basically: Remove the main battery, I/O door, take out 5 screws (sometimes 4 if the one in the back was lost)...

As 3lectr1cPPC stated, there is a Lithium coin cell that's soldered to the interconnect board and I have seen that battery corrode, leak and cause minor damage to the interconnect board in several models. Not trying to alarm you, or start anything, just making sure that you know the potential...

That little plus sign is there across two board revisions that I have laying about and I've never noticed that, until you pointed it out! Across two revisions its not likely an error - and the polar cap does appear to be a choice... I'm planning to use parts from the burned board along with...