Minelab GPX-4500 Instruction Manual page 9

Assembly
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1 Place the battery into the battery harness pouch.
2 Connect the headphones and the power cable to
Note: The illustration shows
the battery orientated for
a user holding the detector
with their left hand.
Caution: The battery should initially be charged
for 8 hours before use.
Connecting the Battery Pack:
the appropriate sockets in the battery.
Caution: Never re-wire your headphones so that
they are similar to the external speaker as the
audio level may damage your hearing.
Note: After market Making use of the GPX-4500 Amplifier:
accessory boosters may
In previous Minelab detectors if a speaker was used,
not operate in conjunction
instead of headphones, the audio level would be
with this built in amplifier.
significantly reduced. Now, the new Minelab Lithium
However, the detectors
Ion battery contains an additional amplifier which
'Target Volume' adjustment
automatically increases the audio level when a
allows you to adjust the
correctly wired speaker is used.
target signal volume and
The new Minelab Lithium Ion battery will
threshold, so accessory
automatically detect if headphones or a speaker is in
boosters are unlikely to
use and adjust the audio level accordingly.
be needed.
See wiring diagram below for correct speaker to
audio jack wiring.
Not connected
External Speaker
Ring Tip
13