HP 8753E Service Manual page 551

Tools Required
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ESD (electrostatic discharge) grounding wrist strap
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soldering iron with associated soldering tools
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Removal
1. Remove the A9 CPU/PIG board (refer to "A9 CPU Board" in this chapter).
2. Unsolder and remove AOBTl from the A9 CPU/PIG board.
Battery A9BTl contains lithium. Do not incinerate or
puncture this battery. Dispose of the discharged battery in
a safe manner.
Replacement
1. Make sure the new battery is inserted into the A9 board with the correct
polarity.
Warning
Replace only with the same or equivalent type
recommended.
2. Solder the battery into place.
3. Replace the A9 CPU/PIG board (refer to "A9 CPU Board" in this chapter).
14-36 Assembly Replacement and Post-Repair Procedures
DO NOT THROW BAlTERIES AWAY BUT
COLLECT AS SMALL CHEMICAL WASTE.