Recycling; Battery; Display - HP ProBook 4540s Maintenance And Service Manual

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Recycling

Battery

When a non-rechargeable or rechargeable battery has reached the end of its useful life, do not
dispose of the battery in general household waste. Follow the local laws and regulations in your area
for battery disposal.
HP encourages customers to recycle used electronic hardware, HP original print cartridges, and
rechargeable batteries. For more information about recycling programs, see the HP Web site at http://
www.hp.com/recycle.

Display

WARNING!
backlight to avoid damaging this component and causing exposure to the mercury.
CAUTION:
components intended for recycling purposes are the LCD panel and the backlight. When you remove
these components, handle them carefully.
NOTE: Materials Disposal. This HP product contains mercury in the backlight in the display
assembly that might require special handling at end-of-life. Disposal of mercury may be regulated
because of environmental considerations. For disposal or recycling information, contact your local
authorities, or see the Electronic Industries Alliance (EIA) Web site at http://www.eiae.org.
This section provides disassembly instructions for the display assembly. The display assembly must
be disassembled to gain access to the backlight (1) and the liquid crystal display (LCD) panel (2).
NOTE: The procedures provided in this chapter are general disassembly instructions. Specific
details, such as screw sizes, quantities, and locations, and component shapes and sizes, can vary
from one computer model to another.
The backlight contains mercury. Exercise caution when removing and handling the
The procedures in this chapter can result in damage to display components. The only
Battery 157