Sony CDX-M9900 Mode D'emploi page 41

Replacing the lithium battery
Under normal conditions, the battery will last
approximately 1 year. (The service life may be
shorter, depending on the conditions of use.)
When the battery becomes weak, the range of the
card remote commander becomes shorter.
Replace the battery with a new CR2025 lithium
battery. Use of any other battery may present a
risk of fire or explosion.
+ side up
Notes on lithium battery
• Keep the lithium battery out of the reach of
children. Should the battery be swallowed,
immediately consult a doctor.
• Wipe the battery with a dry cloth to assure a
good contact.
• Be sure to observe the correct polarity when
installing the battery.
• Do not hold the battery with metallic tweezers,
otherwise a short-circuit may occur.
WARNING
Battery may explode if mistreated.
Do not recharge, disassemble, or dispose of
in fire.
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Removing the unit
1
Remove the protection collar.
1 Engage the release keys together
with the protection collar.
2 Pull out the release keys to remove
the protection collar.
2
Remove the unit.
1 Insert both release keys together
until they click.
2 Pull the release keys to unseat the
unit.
3 Slide the unit out of the mounting.
Orient the release
key correctly.
Face the hook
inwards.
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