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| PowerBook 180 no power (x2) |
Posted by: JRL on 2018-05-06 21:51:23
So 2 of the PB 180s I picked up lately don't power up. One seems to make a small "blip" noise about every 5 seconds or so, the other has the screen turn on for about <1 sec. This is with both main batteries removed.
Are there any fuses I should be on the lookout for on this MB? Thanks!
-Jeff
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Posted by: Byrd on 2018-05-06 23:50:57
First I'd check the PSU, and recap/recalibrate it under load.
There is a fuse near the DC jack on the motherboard that often dies, and can be replaced with some thick gauge wire; I did have a link but am not on my usual computer right now to find.
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Posted by: MikeatOSX on 2018-05-07 04:45:04
Are these PB 180 or 180c?
If PB 180c they need a good 3 ampere (24W) power supply and will only start for 1 sec with less than 3 ampere.
So did mine.
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Posted by: JRL on 2018-05-08 21:37:52
Verified that the psu isn't the problem - correct output. I'll keep a lookout for the fuse, thanks!
@MikeatOSX It's a 180 (not 180c)
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Posted by: register on 2018-05-28 15:36:29
I found the female power connector soldered to the 180's mainboard to easily cause a slack joint. It can be damaged by bending the contacts, the solder pads in the mainboard can become loose, and also the contacts may corrode from the 3 A uptake of the PowerBook. My first PowerBook was pulled from my knees by the cable and fell just onto the plug. Both the cable and the jack broke. I fixed the power adapter with a new cable and a new plug (a flexible rubber stage quality microphone cable is appropriate for this purpose, and you can choose from many colours), and also soldered a new jack onto the mainboard. That solved any power problems in this machine for quite a long time, until all of the batteries died.
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Posted by: techknight on 2018-05-29 15:32:14
Verified that the psu isn't the problem - correct output. I'll keep a lookout for the fuse, thanks!
@MikeatOSX It's a 180 (not 180c)
Is that voltage taken under load? Thats where it really counts.
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