4.2.2 Changing the Backup Battery
Remove the case as previously described. The backup battery is held in a retainer on the Main PCB. Observe polarity
when replacing the battery.
4.2.3 Access to Printed Circuit Boards
1.
Remove the case as previously described. While applying slight pressure to the side retaining clips, lift the Main PCB away
from the chassis.
2.
While applying slight pressure to the side retaining clips, lift the Keypad PCB away from the chassis.
MCUK991001C8
Service Manual
DISASSEMBLY / REASSEMBLY INSTRUCTIONS
Figure 4.4: Battery Polarity
Figure 4.5: Main PCB removal
Figure 4.6: Keypad PCB removal
Section 4
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Issue 1
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