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On a trip to new Mexico this weekend I also visited el Paso to say hello to a guy that literally had a container full of vintage mac stuff about two years ago. I scored back then great he literally just wanted the stuff gone but I could only fit so much in my corolla lol . Any way I was on the...

You are probably referring to the micron xceed card :)

Ya that's what I'm afraid of I'll have to poke it with a continuity meter to see if it's gonna be a big hassle. The real question here is, are there schematics floating around somewhere outthere for this board ? :)

It looks like it might be worth a shot to redo the components, only a few of the pads were totally burned most still had copper after scraping at the pads. I have an LCII i can borrow all ICs from except for U29 (mc68hc70531dw). For the experts, is this one i can get from another common board...

Ya but the enclosure is in good shape and even with the keyboard/mouse I guess selling those off I could at least break even. Those ebay prices for these things are all over the place. I'm still glad I got it, just wished I would have payed less for it lol Edit: I guess you meant the $400 prize...

Well i cleaned it as well as possible  and unsoldered the battery cover to clean the corrosion (see pic), might be salvageable but don't have the time for it now since it will require several IC replacements and figuring out broken traces if any. I would have preferred to stay with the original...

I have a couple of 575s, but will this require a major mod or just plug and play? I'm cleaning the board with acetone and swabs but I can already see several ICs will need to be replaced and several burned pads bypassed if this thing is ever going to be revived, not sure the effort is worth it.

Sad news :( unfortunately once I got a chance to open it up, worst nightmare an exploded battery. Any compatible logic boards outhere ? that can be substitued other than another mactv board since those aren't found very often unfortunately.

Finally found one, been on the lookout for quite a while but Austin's Craigslist finally came through. Guy said it was not workin but looked good cosmetically, it has original software, original black keyboard, and black mouse! Only thing missing was the remote control but he told me he would...

Thanks for that technight, I just got me a cheap oscilloscope this weekend (birthday present from wife :) ) now looking forward to tackling this board some more. Even got me a cheap USB based logic analyzer! But that's still in its way. I'll update this thread if anything new develops!

I did a good check with magnifying glass and even traced a good chunk of connections using schematics found at this forum but everything checked out. So I see why everyone says cold solder joints and traces are rarely a problem. I have two working 512ks somewhere in my pile. When I get some free...

Found an old article from byte magazine that lists a logic diagram, perhaps it can be of some use here :)

I'll have to see if an SE or a SE/30 donor board will have compatible chips ( i have two of those from leaked battery units), id hate to pull them from my working plus :)

This post reminds me of a 128K upgraded to 512k I got a while ago. After a good cleanup dusting and reflowing cold joints in analog board it got a similar screen. I actually always heard a very loud and clear bong with the screen flashing but vertical lines. Almost as if it was a flashing disk...

Hmm that might as well be it, the only laptops I've used have been post 2000 so that could be. My initial taught was that since this laptop is so old perhaps the screen is meant to work like this :) . I ended up with a stack of 20 powerbooks on one of my conquests and have been ignoring repairs...

You are so right about that, the rosin core flux actually spilled a bit into the screen and it looked like a small blob on the screen ( I always taught you can never use too much flux but in this case i did lol). I didn't realize this until i turned it on, the fix up actually made it look worse...

Ok, just finished a full recap on two of my powerbooks 100s. Got a little lazy and just used Uni's cap reference page since I just got too excited and pulled every cap off without making a cap reference sheet :) I replaced all caps on logic board, daughter card, and LCD screen. Except the ones...

Very glad to hear the haul went smoothly :)