Congratulations, and to top it off, you found the problem yourself.
It’s been thirty years since I dealt with clipping those resistors. I’m not
surprised it didn’t occur to me.
My Mac Plus is my first Mac, upgraded from a “Fat Mac” (512K Mac). I
ultimately did all three upgrades, the 800K flo
Quick update! After inspecting the all the board thoroughly again. I found
that the resister for recognising 256k Ram has been clipped off! The
previous owner must have installed 4Mb Ram on the machine. And I sholder it
back, everything works fine!
How I wish he has told me that! Now I am on th
Floppy EMU arrived, running as normal, but same issue occurred. This rules
out the software issue. I did try different System boot disk images.
Try clipping 3 AA batteries in serial, no love either.
So now I think it is the ram. I have ordered some 4Mb upgrade online.
Hopefully with installing
Thanks Clark. I suspect the floppy issue myself. But I do not have another
working floppy to try out. Though I have ordered the Floppy EMU and that
should really take care the both issues. If with any luck that works out, I
will try to create some working floppy with it.
PRAM is indeed out of b
In descending order of likelihood:
File problem on the boot floppy
Bad floppy
Problem with the floppy drive
Dirty
Dried out lubrication
Corrupt PRAM
Low / Dead / Missing PRAM battery
Memory problem
Clark Martin
A designated driver on the information Super Highway
> On Mar 7, 2018
Hi everyone, I quite new with vintage mac here!
In fact I just pick up this Mac Plus from a seller labeling as part. I turn
on the machine and it chimes and show the question mark floppy and I put a
system 6 disk in and it will start booting. Everything sounds correctly
until it just stops.
It
