I've had an LC II board setting around for quite some time with a few pads pulled on it. It was really nasty but I some how managed to get it to start up after a really ugly recap.
Had to bridge C21 across, turn C15 and C22 a little sideways.... I know the image is a bit blurry, but you get...
So I took a long break from my collection and never got around to fixing this issue.
I have a PowerBook 160 that doesn't seem to keep its contrast steady. Messing around with the slider will fix it, but it constantly gets brighter, then dim.
That board looks familiar... ;)
If it helps, this board worked fine until I tried recapping it with a cheap Weller soldering iron. Those tips just don't last :p . I struggled around C2, so I could have damaged something in that area. The first boot after the recap gave me a death chime along...
I was able to boot from a floppy. Sure enough it wasn't able to detect the hdd. I shut it down. Took out the motherboard to look at it. Put it back in. Hdd decides to work again... Monitor went from a yellow tint to normal after running for a bit. Hard to tell, but there is some flickering that...
I got this Color Classic about a year or so ago. It would start up fine but it had this weird issue with the screen being one color until it warmed up a little. I decided to pull it out today and fire it up to see what would happen. I recapped the motherboard last year also.
Here is what I...
I need to get some ram. I struggled to find enough vram to get video. I also need to make a system 7 disk as I see system 6 hangs at "Welcome to Macintosh".
I am going to try to keep this easy to understand. Hopefully some of this information below is useful for elfen, even though he is not receiving the death chime.
My story: I got this computer about a few months ago. I cleaned the board, recapped, and still had a death chime indicating ram...
I'll get some pics and some drawings up soon. I got to resolder my wire because it came undone. I guess that's what I get for using the smallest wire I possibly can lol. I still don't understand why apple would have like 8 vias right under a cap.
I stuck my Late 2006 17" back in the original box. Not only did my display have the lines but 1/3 of the screen is a big block of nothing. On top of that my slot loading drive won't eject and the hard drive failed. I replaced the hard drive but never used it much because of the other issues.
Time to give this one more try. I noticed that the corrosion that I attempted to clean off of U5 is still there pretty bad.
So I gave it another scrub and no luck. Im still guessing that the problem is somewhere in this area since it was the worst when I originally cleaned the board. As far...
So I am finally back to working on my 475, the one I posted about back in December. Still the same death chime issue. I decided to hunt down the data sheet for the on board ram, which is Samsung brand. It was actually easy to find. Maybe I can hunt down this issue soon.
No hard drive. No video. The one time that it didn't death chime I didn't have a monitor hooked up. I put a floppy in but I couldn't hear if it was doing anything.
After the recap, still doesn't work. Happy chime then instant death chime. A few lucky times of using the red button on the motherboard, I didn't get a death chime.
All the caps off, gave it a bath last night, new caps tonight. Crossing fingers. Still can't seem to scrub off a little bit of corrosion on one of the chips. If it doesn't boot, may have to replace that next. Its not too bad.
I wiggled 3 off and they came off fine. Just takes so long to wiggle. I used tap water on my Color Classic board but then washed it off in alcohol. I guess I should get some distilled water and some kind of container to wash it in.