Philips 862478 - Manual (Page 129)

Disassembly Procedures
Disassembly 7-5
Removing the
Navigation
Wheel
3 Disconnect both battery lug terminals to release the battery.
4 When you re-insert the battery, verify that the battery is inserted the correct way
and the polarity is correct (see figure below).
Step Action
Black
Red
Step Action
1 Firmly grasp both sides of the wheel and pull straight back from the monitor.
The wheel should slip off the encoder shaft. If the wheel does not slip off the
encoder shaft, use the needle-nose pliers and pull the wheel.
2 For further disassembly, use the 10 mm socket wrench to unscrew the brass hex
nut.