Okay of us:
That is my first try and diagnose and restore (if obligatory, however provided that obligatory) any obvious faulty (or quickly prone to grow to be faulty or fail) components on a Mac Plus unique analog board.
Proper now, the analog board is working (it is powering and offering sign to) a Mac Plus (1988) that I bought for $200 ($100 plus $100 delivery) that initially had a Unhappy Mac ROM failure black display.
I put in new ROMs, upgraded the logic board to 4 MB and the unhappy Mac turned very comfortable and booted fantastically. The logic board is in close to pristine situation, and apart from the faulty ROMS which have now been changed and the board upgraded to 4 MB, every thing runs easily and with none hiccups.
The display is ideal, no pixel failures or fade strains or different issues and the one teeny, weeny concern is a barely imperceptible distinction within the width between the left black margin and the appropriate black margin.
The opposite concern is that the inner floppy drive, which works fantastically and accepts disks and reads them faithfully, is reluctant to let go of disk once we try and eject the disk and must be prodded with a push pin. That is within the means of being fastened and we’re certain {that a} totally practical drive shall be totally repaired in brief order. No worries there in anyway.
Nonetheless, what we might actually use some assist with is the analog board. Whereas the analog board is okay and each powers and gives sign to the Mac Plus this present day, we see that it’s the unique analog board and would not look like in fairly a close to good situation because the logic board. Whereas it’s totally practical, we’re nervous that, maybe, simply maybe, a number of capacitors could also be nearing its finish of life and must be changed and repaired.
We have supplied a bunch of images to provide you a greater concept of what situation it’s presently in.
Wouldn’t it be an excessive amount of to ask you of us to have a look and tell us when you see factor(s) improper with the board that wants repairing earlier than we try and promote the re-assembled Mac Plus to some poor, unsuspecting purchaser. We all the time need our prospects to be comfortable and by no means need them to be unhappy with any buy they make from us.
Thanks for having a look and mentioning something you observe which will want consideration.
Sincerely,
Butch
Footage of Analog Board – Totally different Angles: