IBM Portable PC (Model 5155): Part 2 - Power Supply

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Australia The Clueless Engineer
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Published on ● Video Link: https://www.youtube.com/watch?v=EJn2euQOOhk


Duration: 21:31
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This is a bit of a tedious one. Pulled the power supply out. Definitely seems to be a "no user serviceable parts" module - if it fails, just replace the whole unit.

Looks like just four more bolts to unscrew and then I'll be able to work on the main circuit board, replacing the electrolytics.

There's an X2 capacitor across the active & neutral AC input - looks okay ... as least it ain't a RIFA ... but will replace as a precaution.

Don't particularly want to have to dismantle this thing again in the near future!



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