This is how my PowerBook 145B screen looks like:
From what I've been reading about PowerBook screens I think that all those "weird" lines in the screens and faded parts are due to bad capacitors, am I right?
But what about that black part in the top-left side of the screen?? That doesn't...
Last week I got a non-working Powerbook 145b for 20€ (~23USD).
The first thing I did was to test the power supply, which was giving a good 7.8V.
I saw that the battery was still in place and I feared the worst. When I took it out my suspicions were confirmed: corrosion.
It was looking...
Yeah, that looks quite nasty. I wouldn't be surprise if there are broken traces on the board due to that corrosion.
Last week I got a 145B looking like that one (or worse) and it had some broken traces:
Just an update on this:
I kept persevering and I got it working!
I tried many different things really.
I saw that the terminals where the battery gets connected were a bit corroded so I desoldered it to see if there was any damage under it.
I couldn't see much but when I put it under the...
To be honest I didn't think it was the main boards because they look pristine:
I was also worried about the pram battery, but I don't think it can cause that problem, right? hmmm
I'll check the main boards better in case I can find something wrong.
Yeah, that ribbon cable seems very fragile... it was the first thing I tested for continuity expecting one of the paths to be broken. But it seems all good.
I removed the display from the plastic cover and it's a huge PCB, but no signs of caps in the back. Or do you mean I should remove the...
Got a Powerbook 180 and it is not showing anything on the screen:
I've searched in the forum and I've found this user with the same issue:
I've also read that it may be an issue with bad capacitors and I have seen some people replacing the caps in other Powerbooks of the 100s...