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ps/note N45 SL power supply

Older ThinkPads from the 300, 500, 600, 700 Series, iSeries, Transnote etc.
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solidpro
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ps/note N45 SL power supply

#1 Post by solidpro » Tue Sep 13, 2022 9:45 am

Hi

Just wanted to stick this here for future reference. I have 2 x N45 SL machines which I was unable to test without the original power supply made by Nagano Japan. The power supply has a few part numbers on it:

150-557-01
92F8808
92F8832

It's almost impossible to find, so I built my own. The connector is a very unusual 4 pin connector which is a bit bigger than a S-Video or PS2 male connector. However if you remove the outer shield from either of those, it'll fit, with the S-Video connector having the key in the right position.

If you look directly at the socket on the side of the PS/Note, the top left hole is GND and the bottom 2 pins either side are 22v +
One is for battery and one for 'power' but I found you have to power both for the machine to turn on, whether it has a battery or not. I tested with a variable power supply and it draws a max of about 1.4amps so you need anything +19 / 2a really and you should be in business.

cheers
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