ADJUSTMENTS AND
MAINTENANCE
UT-MT-0972_1.0_19-09-2022 (EN)
Use and Maintenance Manual
LED PAPI 66
30
4.5
Replacement of the PCBA LED Driver Board
Before carrying out any intervention on the fixture, cut off all external power sources and
place appropriate work-in-progress warnings on the systems.
Wait for the discharging time (at least 5 minutes) and check using appropriate instruments
that there are no residual energies before accessing the electrical equipment.
The PCBA LED Driver Board is a complete spare part: when ordering always communicate the model and the
options installed on the LHA device.
Disconnect the supply cables of the LHA unit. Remove the upper cover of the fixture (1a) and access the electronic
box (1b) (see related paragraph in the chapter “ADJUSTMENTS AND MAINTENANCE”).
Unscrew the screws and remove the cover (2a) of the electronic box internal to the fixture.
