Capacitor Reference - PowerBook 520
The display 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.
Reference Values
Logic Board
| Value | Count | Type |
|---|---|---|
| 100uf 25v | 1 | Surface-Mount Electrolytic |
LCD (Sharp LM64P858)
| Value | Count | Type |
|---|---|---|
| 10uf 16v | 1 | Low Profile Surface-Mount Electrolytic |
| 3.3uf 35v | 8 | Low Profile Surface-Mount Electrolytic |
Backlight Inverter Board
The polymer caps very rarely fail - replace them only if you want to.
| Value | Count | Type |
|---|---|---|
| 220uf 6.3v | 1 | Low Profile Radial Electrolytic |
| 22uf 6.3v | 1 | Low Profile Radial Polymer |
| 6.8uf 25v | 2 | Low Profile Radial Polymer |
Reference Images
Click on an image to view the full-size version of it.
Logic board reference photo courtesy of AEChadwick.
Logic Board
LCD - Image from oldcrap.org
Backlight Inverter Board
Page last updated (MM/DD/YYYY): 09/30/2024
Update Reason: formatting updated
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