This is the user manual for Apple's PowerBook G4 15
The guide introduces the PowerBook G4 15‑inch notebook, covering its basic functions such as the power button, keyboard, touchpad, and built‑in speakers. It explains how to adjust screen brightness, volume, keyboard illumination, and how to use function keys and the numeric keypad.
Additional sections describe optional features like AirPort Extreme/Bluetooth connectivity, external video support, and installing accessories. Safety instructions, battery handling, and troubleshooting tips are also included to help users get the most out of their device. This manual is written in Chinese.
Press the brightness control key to increase or decrease the display brightness.
Press the Num Lock key; the green light on the keyboard lock indicator will turn on.
When the PowerBook is in sleep mode, the sleep indicator light flashes white.