Editing IBook Troubleshooting (section)

== Keyboard, trackpad and drives ==
* No response from the keyboard: reset the power manager, boot from the system CD, reconnect the keyboard cable; then the keyboard and the logic board.<ref name="ssc" />
* Trackpad button has no effect (clamshell): reset the power manager; with the top case off, press the trackpad button on the charging board with a nylon tool. If that works, check how the top case is seated; otherwise the charging board, then the button actuator in the top case.<ref name="ssc" />
* Cursor erratic (Dual USB): clean the trackpad with the machine off; reset the power manager; try running on battery, and if that cures it, replace the adapter; check the trackpad cable under the RAM shield.<ref name="dusb" />
* Hard disk does not spin (clamshell): connect the adapter, disconnect USB devices, check the drive cable (pull it up evenly so the pins do not bend), then the cable, the drive and the logic board.<ref name="ssc" />