52
Y Series TechBook
How to replace the upper extension board on the in.yt
Warning!
Before starting removal
procedure be sure to:
• Turn off electric
power to the unit
Using a Phillips screwdriver,
loosen the 6 screws that
hold the cover in place
Identify each wire coming
from the main board and
remove them from the
extension board
Remove the control cable
from the upper board
Disconnect the incoming
conductors from the
screw lug terminal
Remove the inlink cables
Identify and remove all
the output power cord
from the AMP assembly
brackets left and right
Remove the strain relief
covers, left and right, and
remove cords Do the
same for the strain relief
brackets Remove screws
from the AMP assembly
brackets Remove the 2
green grounding screws
Remove the inlink
bracket
Remove the screw from
the bottom left side of
the PCB Slide the circuit
board downwards to
disengage it from the
upper PCB holder tab
Put the new circuit board
in place by engaging it
into the PCB holder tab
Secure the board with
the bottom lefthand side
screw Put the 2 green
grounding screws back in
place Reinstall the inlink
bracket with its 2 screws
Reinstall the 2 AMP
assembly brackets and the
strain relief brackets Put
all of the output power
cords back in place and
secure them by reinstalling
the strain relief covers
Plug the inlink cables
and control cables from
the main board back in
Reinstall all the remaining
conductors coming from
the main control board
Reconnect the incoming
conductor to the screw
lug terminal Reinstall the
cover and secure it with
the 6 screws
