Panasonic KX-TDA600 - Hybrid IP PBX Control Unit Max. 1008 Ports Installation Manual page 100

2.2 Installation of the Hybrid IP-PBX
2.
Push the release lever in the direction of the arrow, so that the PSU engages securely with the
connector on the back board.
Release Lever
3.
Turn the 4 screws clockwise, in the order indicated by the numbers 1 to 4, to fix the PSU.
Screws
Replacing the Power Supply Unit
1.
Unplug the AC power cord.
100 Installation Manual
Back Board
3 2
4
1