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I found this in my old old old old newsgroups posts: >The Apple HD20 used a DB-19 connector on an olive-colored cable. If you >have a DB-25 connector on a gray cable, you probably have the conversion >kit that somebody (MacBottom?) sold to convert the drive to the world's...

The drive is in my hometown ! I will bring it back though, even if it's broken. It'S really an odd mod... I also have pretty saucy cards in my IIgs, such as a 286 card...

Later cartridges seems to be quite rare... I havn't seen them ever.

It'S like, timing wise: Bong-Grey screen for less than half a sec, sad mac. The grey screen has artifacts

Even with no floppy drive connected, I end up with the same result. I know the sound of the floppy, and I can swear it'S not accessing it.

Hi. Just to follow up... I tried to reseat the Roms, no success: Still the same artifacts on the screen. I guess one memory chip is really bad... :-(

You don't really need the software. But I have the floppies... I may send you a copy if you want.

Does anyone have them ? FYI the TechStep is a diagnostic machine for old macs.... It can test Hardware directly. http://www.forcedperfect.net/hardware/other/techstep/

I have three of those. One is non working and one has a rare scsi conversion board. The conversion was done by a weird company at the time. The drive id the same rodime, but the Bridgeboard brings the drive to SCSI instead of Floppy. Oh, and one of them I got on ebay a long time ago, It had...

I know I can interchange the board with one of my 512k, however, many machines of my collection are stashed in my grandmother's basement in my hometown. I'm taking them back to montreal as I get more storage here in montreal. As for the machine: I got it from an old lady. I doubt it was used...

I have artifacts in the screen as well. I really think one memory chip is bad. I will toy on that this weekend. I will first try the rom thing, then I will just heat the solder on the memory chips. Thanks for the advices. I will post results here.

Hi. I looked closely at the Logic Board tonight and it is in good physical condition. No leaked capacitor. I removed the battery and still no go. The code under the sad mac is 040003. According to This page it means that the MOD3 Memory test failed on chip 3... I'm not too keen to replace...

Hi. I took my Mac 128k original out of storage. It nows shows sevral artifacts in the screen (Lines) and I get the sad mac immediately after the startup sound. Since the case is perfect and the scren is pristine (Phosphor is still blue). I would really like some tips on how to fix it. It's...