Capacitor Reference - PowerBook 150

The PowerBook 150 has no electrolytic capacitors on the logic board. This means that the only caps you will have to replace will be those on the Display, the trackball, and the display inverter board. Failing inverter board caps can introduce inconsistent backlight/contrast behavior even after the LCD itself has been recapped.

The LCD capacitors are frequently replaced with ceramic capacitors. These may work, but have been shown to result in drifting contrast on certain LCD displays. This is caused by ceramic capacitors' characteristic where the capacitance varies based on voltage load. As such, I would recommend replacing them with tantalum caps instead.

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LCD

PowerBook 150 LCDs were sourced from two vendors - Sharp and Casio. Despite this, both use the same capacitors.

Value	Count	Type
3.3uf 35v	8	Low Profile Surface-Mount Electrolytic

Reference Images

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Backlight Inverter Board

Value	Count	Type
47uf 25v	1	Radial Electrolytic

Reference Image

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Trackball

Value	Count	Type
10uf 16v	1	Radial Electrolytic

Reference Image

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