Panasonic NB-G100P Manual page 12

The point in reassembly
Reinstall the front plate by inserting the tabs (at right and left sides) to the step mark.
6.6. Disassembling the upper heater assy. and the lower heater assy.
Disassembling the upper heater assy.
1. Remove the 2 screws E.
2. Roll out the tab locking the upper heater assy. with a pair of small
pliers.
3. Remove the upper heater assy.
Disassembling the lower heater assy.
1. Remove the 2 screws E.
2. Roll out the tab locking the lower heater assy. with a pair of small
pliers.
3. Remove the lower heater assy.
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