Panasonic KX-TDA30 Installation Manual page 45

2.
Turn the 4 screws anticlockwise to loosen them.
Screws
3.
Pull the release lever in the direction of the arrow to disconnect the PSU from the back
board.
Release Lever
4.
Replace the PSU.
Current PSU
New PSU
5.
Follow the steps in "Installing the Power Supply Unit".
2.2 Installation of the Hybrid IP-PBX — KX-TDA100/KX-TDA200
Back Board
Installation Manual 45