Panasonic KX-NS500 - Page 11

3. Slide the top cover then lift it off.
Closing the Top Cover
1. Place the top cover onto the PBX. Then slide the top cover until it closes properly.
2. Turn the screws clockwise to tighten.
CAUTION
For safety reasons, close the top cover and tighten the screws before operating the PBX.
Getting Started 11
2.1 Opening/Closing the Top Cover