I thought your Lisa had no logic/mother board? Edit: I love Lisas, but I cannot justify spending US$1000 on a computer I can't upgrade/repair (10 000 volts on a CRT).

BREAKING NEWS!!!! With some spare parts I could test my Widget drive. And.... It is alive!!! The Lisa boots up nicely from it. So my efforts to revive it a succes! See pictures: …

47Hz: which makes sense, in order to bring the line frequency back into the correct range, you have to lower the refresh rate. Higher refresh rates require a faster beam to scan th…

uniserver said: the one thing i do not like about the 640x480 mod, is the 47HZ refresh rate... i mean 60hz is bad enough. seems when i get mystified A/B's in the caps are ex…

techknight said: the guy who figured out the 640x480 mod, I have no idea how he figured it out. Maybe it came from an internal apple employee, or repair guy. Hard to say.  …

I would think that IF a platinum face plate exists from the original design it would be an ED model sold in Europe. Seems education models had the most variants over there. I almos…

Fair enough, I've never seen reference to a platinum original face plate or bezel and (sorry) am not convinced it exists, would love to be proved wrong (gives me another variant to…

Only in rumor and conjecture does an original face-plate design exist in platinum. Same for the original keyboard (without numeric pad). That is not to say they do not exist, just …

I think I can already answer this question BUT here goes. In my collection I have a Colour Classic and a Color Classic. As far as I know, same model numbers too but I will double …

Does anyone have any photographic evidence of the existence of this one: M0001D Macintosh 512ke (platinum color, original style face, no stamping on front) I can't say I have ever…

It might have been hot 25 or more years ago and they removed anything with a number not knowing the difference between serial and FCC labels. unity said: Hmmm... Well I a…

One of these days... when I get time... HAHAHAHAAHA.... I need to go through and compare the two analog boards and figure out the differences. 

Funny http://www.ebay.com/itm/Vintage-APPLE-Macintosh-Classic-Model-MO420-Computer-With-keyboard-mouse-1991-/251961675256

I would date-code the analog board.

OK, good to know.  I just wanted to make sure I wasn't messing up a prototype before I started stealing parts.

Datecodes make it seem unlikely to be a prototype. The 512K was released in '84 but the IC date codes there are all from late 1985, such as 8547, 8543, 8598 and another 8543.

the one thing i do not like about the 640x480 mod, is the 47HZ refresh rate... i mean 60hz is bad enough. seems when i get mystified A/B's in the caps are extra cooked.           …

Well in theory only the mobo could be a proto. The rest would not be, just an unlabeled case.

There are two electrolityc capacitors on the inverter board, one is a 47uf 16V, the other is a 33uf 10V

I'll examine it more closely when I get home.  I couldn't see anything that was different, except for the text on the motherboard.  But I only have 1 other 512k to compare it to. …

The Q800's PSU might not be able to handle two PC Cards. I would recap the PSU First. If the PC Cards can do background processing, then maybe it can be done. Like Trash80toHP_Min…

Perfect! I did have M0420 in the list at one point, but could not find a visual example of one for sure. So this helps a bunch!

360alaska said: Actually it has been done before: http://www.fenestrated.net/~macman/CC575/ Click to expand... 360alaska.... Wow!!!  While I do not like taking a dremel to…

Byrd.....  Thank you for your post.  If I had a schematic of a Color Classic analog board, I could figure some of this out for my self, but I can not seem to find or buy any docume…