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How to replace the internal battery, Kmc-47gps/48gps – Kenwood KMC-47GPS User Manual

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KMC-47GPS/48GPS

HOW TO REPLACE THE INTERNAL BATTERY

If a Cold Start occurs frequently (the transceiver cannot

start GPS positioning after the transceiver is turned ON)
even though the transceiver has been continuously used, the
internal battery may be degraded. When the internal battery
terminal is less than 1.4V after charging, use the following
procedure to replace the internal battery.
CAUTION: THE OPERATOR MUST WEAR AN ANTISTATIC
BAND WHEN REPLACING THE BUILT-IN BATTERY IN OR-
DER TO PREVENT STATIC DISCHARGE. THE INSTALLED
IC MAY BE DAMAGED BY A DISCHARGE OF STATIC
ELECTRICITY.

1. Remove the KMC-47GPS/48GPS from the transceiver

and 4 screws on the rear panel.

3. Remove the GPS unit installed in the upper part of the mi-

crophone.
CAUTION: DO NOT DAMAGE CABLES WHEN REMOV-
ING THE GPS UNIT.

5. Reinstall the GPS unit, packing and cover.

Note: Remove cables connected to the GPS unit, if need-
ed.

4. Remove the internal battery in the GPS unit by using the

soldering iron. Replace the battery with a new battery.
CAUTION: BE SURE THE POLARITY OF THE BATTERY
BEFORE INSTALLING IT.

2. Remove the cover and packing.

Packing

Cover

GPS Unit

GPS Unit

Capacitor

Internal Battery

Internal Battery