HP ProBook 4525s Notebook PC - Maintenance and Service Guide

Component Description
(2) RJ-11 (modem) jack (select models only) Connects a modem cable.
(3) Optical drive (select models only) Reads optical discs and, on select models, also writes to optical
discs.
(4) Optical drive light (select models only) Blinking: The optical drive is being accessed.
(5) AC adapter light
●
On: The computer is connected to external power and the
battery is charging.
●
Off: The computer is not connected to external power.
(6) Power connector Connects an AC adapter.
14 Chapter 2 External component identification