Search results

Maybe try the other ram again and clip R8 if the other ram is 1mb simms. http://oldcomputer.info/apple/Plus/index.htm

Hmmm, yeah I don't use that version any more. Thanks though. This is what I use nowadays:

Sure, I use designspark. And then I do OSHpark for prototypes and then itead or jlcpcb for production.

I can design a pcb for you if you want.

Yeah I’d like to make or buy a few. I think for most people the problem with scsi2sd is the price. Maybe you can call it Econoscsi? ScsiEmu? Scuzduino? Stm32scsi? Auduscsi? Some call the stm32 board the “blue pill” board so maybe bluescsi?    lastly if I was given the choice between no...

Bright Vertical Line Possible solutions: Check/Reflow P1 Check/Reflow L2 Check/Reflow L3 Test/ Replace C15 Test/ Replace R19 Bright Horizontal Line Possible solutions: Check/Reflow P1 Check/Replace U2

If you bend the leads on the 1/2 AA holder out a little bit it will fit without any addon board.

I don't want to be negative, but the only board I've ever recovered after a battery explosion is the Mac Classic, the area around the battery for the classic is not nearly as dense. But you have a schematic, check for continuity and go from there.

I might suggest to try disconnect the hard drive and see if it changes.

I think one time I had a bad trace going to ul1 with similar symptoms. Also, what's going on with UJ4 pin 33?

I mean how about something like this: https://www.digikey.com/en/products/detail/allegro-microsystems/ACS758LCB-100B-PFF-T/2042746 Using a diode so it will only register current in one direction.

Maybe you can use a current monitor IC and a diode?

Maybe UA5? The sound chip generates the reset signal, also, make sure one of the buttons isn't stuck down. Look here: https://drive.google.com/file/d/1arROEuXR8cY_02zv6NjKSsXKv1A3WtYE/view?usp=sharing

Look here for more info: https://www.downtowndougbrown.com/2015/03/explanation-of-the-macintosh-iiiix-power-onoff-circuit/

do you have any more kits?

Thanks

There is an early and later/ low rfi version. Out of all of my machines I've only encountered 1 or 2 of the older type.

I have a 32gb sata ssd in mine with a convertor. Works like a charm. CF to IDE adapters simply don't work on Performa 630 type machines.

If I'm not mistaken, LC 580 boards have both. I wrote a thread about adding a dos board to my LC580.

Does sound work at all?