Service manual

5. DISASSEMBLY AND ASSEMBLY
5.26 Service Manual BSM-4100
Replacing the Lithium Battery
Perform the following procedure after the “Removing the DPU Board” procedure.
CAUTION
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• Use a glove to handle the new lithium battery. If you touch it with your
bare hand, it may cause an increase of resistance at the battery
terminals and shorten the lifetime.
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• Never charge, short-circuit, disassemble, deform, heat, or throw the
battery into fire. This may cause overheating, explosion, or fire.
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• Before disposing of the battery, cover it with insulation tape to prevent
short circuit between the positive and negative terminals. Otherwise,
the battery may heat, explode or burn if the battery is disposed of with
other batteries or electrically conductive materials.
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• Discard used batteries according to your local laws.
1. Replace the lithium battery on the MAIN board with a new one as shown
below.
2. After the battery replacement, check the continuity between the battery
terminal and receptacle terminal with a multimeter or digital voltmeter.