Title
Replacing the Power Conditioning Board on an L-880(L), L-881(L) Precision Approach Path Indicator Lights (PAPI)
URL Name
Replacing-the-Power-Conditioning-Board-on-an-L-880-L-L-881-L-Precision-Approach-Path-Indicator-Lights-PAPI
Summary
This article provides the complete step-by-step procedure for safely removing and replacing the Power Conditioning Board (part number 88-00400) in the Light Head Assembly of the L-880(L) and L-881(L) LED Precision Approach Path Indicator system.

Content

Safety and Preparation

De-energize the system using the circuit breaker.

Removal Procedure

Remove the Top Cover.
Remove the Left Cover.
Disconnect all harnesses from the Power Conditioning Board.
Note the position of the ground wire under the upper left screw.
Remove the 4 mounting screws.
Remove the Power Conditioning Board.

Installation of New Board

Install the new Power Conditioning Board with the 4 screws, making sure to replace the ground wire under the board with the upper right screw.
Plug in all harnesses.

Reassembly and Power-Up

Replace the Left Cover.
Replace the Top Cover.
Re-energize the system.

Airport Lighting Company | L-880(L), L-881(L) Precision Approach Path Indicator Lights (PAPI)  

Precision Approach Path Indicator Lights