Maybe i have some problems with 9 and 20 pins on floppy connector?
Anybody know what the voltages or signals i need to have on these pins?
Maybe i can block floppy drive on motherboard?
eject mechanism is works good. When i use floppy boot disk and no HDD present, my mac is trying to read disk and after few seconds eject it.
But diskette is good i was try to boot another mac computer (powerbook 170) and booting from the floppy disk begins
On my Mac case is writing Super Drive...
My MAC SE almost works bit i have new very big problem ((((
floppy drive don't work and i can do anything with my system...
I make a install boot disk 1.44 mb with mac os 6.0.8, check this disk on another mac - booting ok
But my mac can't boot :(
Floppy drive (mac have syper drive) always have...
i was replace all caps on analog board but nothing happen better, all the same
I think i have problem with GND and +5 volt lines, because i have resistance between them
I think I have a damaged some SMD capacitor on board
I think this is not normal have "that" in any of capacitors on board...
I thinked and choose another way.
I have external hdd from mac 512, i was connect it to x86 pc and get image with TransMac
Then i wrote this image to clean HDD
But i have one problem, first hdd size is near 60 mb and second (clean) hdd have near 40 mb
So TransMac have error near end of writing...
I have two classic mac's: macintosh ED (trying to fix here, on another thread) and macintosh SE (super drive)
Few days ago i was trying to start my Mac SE and sure, he don't boot i and i see artefacts on screen)))
I was remove motherboard and remove all chips, then wash the board. Today i try...
First time i was reed my ROM chips and found some garbage in one chip. Another one looks good
I was write new ROM (two chips) from here:
https://github.com/Stephen-Arsenault/MacRoms
(UK Mac Plus)
Ysterday i was try to turn on my Mac without SCSI board and i can't boot and I saw nothing
Only...
Ok how i can make 512 kb of ram? Because i can replace chips and i was do this few time on another computers
but i can't make two layers of chips like now present on board
hmm sad news(
How i can change all this memory to 1 mb simm30 module? (because I can't make two layers of memory chips, like in this version) Maybe some instruction is present on internet?
Hello all!
I have old macintosh and want to fix it
This is Macintosh ED (512k) with 1 meg of ram and SCSI upgrade
When i turn it on i have this:
My board:
I have originals ROM chips but with them i have the same artefacts on screen :( With this chips i try to use another rom what i was...