I posted this IIvi over on the trading post, but I figured I'd ask here about this specific problem. When it went away in storage about 10 years ago, the colours on the display we…

YES PLEASE!

Ok, so it sounds like my basic idea will work. Good enough for me. I'll try it on the 520 I don't care about just in case.

The Maxell 650MB CD-Rs came yesterday, as did the floppy drive and HDI-30 to DB-25 SCSI adapter. The PowerBook and the AC adapter are coming Monday (18 May 2015). I found the Clams…

Techknight I have a 2400c battery apart and still intact!!!! I prepped it for rebuild eventually.. It just has the top cover nicely removed with little damage.. I will take a few p…

I did dig this old thread up: https://68kmla.org/forums/index.php?/topic/7704-powerbook-520-power-pinouts/ Sadly all the pictures are gone, but it pretty much explains everything…

I havent tried it recently. I vaguely recall screwing around with a generic power supply on a 520 long long ago when mine died. Back when I was actively dicking around with these m…

the lighting is too dark, and the pictures are too blurry to make out anything useful, but its possible the PCB circuitry is similar/same to make heads and tails of my battery.  B…

Seriously, no one?

I remember that Applied Engineering Accelerator, Dr. Levinson  had it (along with many others), it was quite a card! I managed to get the RocketChip Manual off archive.org. The si…

Again... sorry it isn't for the 2400. You'll have to find a battery out someone willing to Crack one and take pics

External port traces run through the internal one first... except for one or two. I forget which.

My accelerated Apple IIe makes a higher pitched beep, though I believe Applied Engineering made documents available for writing software to be Accelerator Aware.  Ultima V, for exa…

that is funny your external port works.  but the internal one doesn't.    Techknight knows dead scsi traces oh so well.

I would double check polarity on your caps, and then just retouch all the solder points once more, make sure everything is good.

Nope. Open traces.

Yes I connected two different known good drives internally. An 80MB and 350MB. The drives are seen and will boot the system when I put them in an external SCSI enclosure and connec…

Can I assume you tried a different internal drive?

Hello all,  I recently recapped an SE/30 motherboard. I cleaned the board with a toothbrush and soap and hot water, let it dry for a week or more and then replaced the capacitors.…

On the 3400c's lithium battery board, the black wire is the neg lead; red is the pos; the two white wires connect to tabs between the 2nd and 3rd and 3rd and 4th (I think) cells - …

ok. But it isnt going to help i dont think.... Also when I do figure this out, i will have to reprogram the EEPROM to reset the cell counter so it doesnt think its still "dead"

Send a picture

My 2400C battery was gutted by a previous owner, with no hide and a hair of a picture or diagram anywhere on where the wires go.  So, this might be a long shot, but does anyone ha…

Substituting an ATX supply for the MDD supply is very doable, but there are two issues. First, physical fit.  The MDD supply is long and low, not boxy.   With some hunting you can…

I think its a coined name/brand. But honestly it doesnt matter as long as the reflective die is silver, as it reflects full spectrum without much color distortion, Now granted the …