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Rebuilding 180c power adapter

Lanceleader

New member
Hello, I just received my first powerbook, a 180c. The laptop itself seem to have survived the trip but not the power brick, no voltage on my multimeter. When I shake it, a part rattle inside. So using instructions found on this forum I was able to open the case. I found lot of rust and what seem to be the remain of an inductor. I know I'll have to clean the board and change some capacitors but I can't find the value of that broken inductor on the board it look like it's called L102. For reference my ac adapter is the 7.5 volt 3 amp (aps-46u). Until i fix the ac adapter I won't know if the powerbook is fully working. There is a small charge left in the battery so when I press power the laptop chime and shutdown immediatly, this is a good sign ?

 

Bunsen

Admin-Witchfinder-General
Unless you're familiar with working with mains power devices and the safety issues involved, I really wouldn't recommend trying to repair it.  I would look for an off the shelf power supply rated to 3 amps 7.5V DC regulated and test the Powerbook with that.  If you don't want to sink cash into it until you know if it's working, see if you can find a friend with a lab power supply that can be set to that voltage and supply enough current.

 

Lanceleader

New member
I'll try to get pictures after I clean the board. I'll bring the laptop at work and ask my boss if I can use his lab power supply.

 
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