The PowerBook 180's logic board and screen are all solid-state. The only electrolytic capacitors in the entire system that may need replacing is a single one on the LCD Inverter Board, and a single one on the trackball. There is a second cap on the inverter board, but it is a purple solid polymer capacitor that has no liquid electrolyte in it. These rarely fail.
Click on an image to view the full-size version of it.
Images provided by @GRudolf94 on 68kMLA.org
Home < Capacitor Reference Library < PowerBook 180