EasternPrommises

Thanks for the tip I will order one as scratching each pin with basic tweezers was so time consuming ✌️

Thank you, I gotta say soldering on this pcb was painfull, it just wouldn't stick cause of all the oxidation on the pins, and honestly when you got 100 or more solder joints and milion things to check the priority just shifts towards trying to bring the thing back to life. And the state the board was in, I honestly had my doubts, maybe thats why I didn't really try my best to make them look "pretty". It's kinda funny , even with the suck joints everything works smooth now, and 0 shorts

Powering the board outside the housing, applying some extra 5v juice to certain chips while observing different cpu/rom signals on the oscilloscoop as the board was totally dead, first repair was getting picture (checkboard, the heartbeat was back but brain was still in coma). The second repair was getting past only checkboard screen where I could at least see some error codes. Then third and the last repair after seeing error code, lead me to an issue with one of the address signals A12, traced it back and figured it was missing one connection to a second I nearby, after fixing that link I could boot into OS.

Thanks!

😂

Yes I understand , you become obsessed by it, like a tunnel vision that's how I experience it. For me it's like I have periods that I love to repair electronics and I would do that for 2-6 months and then completely stop and I would focus on things outside my work repair room, I would maybe go fixing cars, bikes or anything mechanical until I feel like I wanna step back in my room again. Totally depends on my mindset , because if I don't have an idea or purpose I just can't do it

Your comment is so true, I can relate so much. I feel like I made my self sick while at the same time fixing this "unfixable" thing. I am usually very active but this thing made me sit in the chair for hours and hours, I can still feel the pain in my ribs and hips.

I wish it was just recap, the visible /invisible damage on this board was insane even simple soldering was painful cause of the oxidation on the pins which had to be manually cleaned one by one, not taking into consideration wel maybe over 50 traces fixed + extra wires and way more then +100 ic pins that had to be checked for continuity / shorts. I suspect this thing was soaked onder water as the metal frame underneath was full of rust as wel

Yeah, it's been fixed , some of the pictures posted are from before ✌️

That was before picture, it is fully operational now.

I did a lot of modern laptop repairs before, it's only been recently that I started doing vintage stuff, like Sega Dreamcast, Gamegear and basically anything I get my hands on, Boom boxes etc. I was planning to repaint this Macintosh, but now I am doubting if I should do it cause if I sell it cause of lack of space it might be that collectors prefer the old vintage look. I am still thinking if I should do it or not. It's now in full working stats, booting to the OS, screen position fixed this morning as well, really happy with how it turned out .

Thank you so much😇

One thing is for sure, I would never do this again. I would wake up in the middle of the night , 2am - 3 am just to finish it, so many times that I almost gave up. It would been far easier to buy empty pcb and transfer everything over but then it wouldn't been original 🤣

Will keep that in mind ✌️

Hey there, I have the same laptop. Do u have any schematics for it? I am curious to know what kind of yellow battery this is, with the battery disconnected it's giving around 11v at the 2 pin connector. This seems a lot if it's only a BIOS battery usually they are 3v. Also I am curious about the adapter pin out, it has 4 pins and since I don't have the original adapter I am trying to make another one myself. Any other useful information are welcome. Thanks!