10. FRONT PANEL ASSEMBLY REMOVAL AND
REPLACEMENT
This procedure provides instructions for removing and re-
placing the Site Master front panel assembly. With the front
panel assembly removed, the LCD display, keypad PCB,
keypad membrane, and main PCB assemblies can be re-
moved and replaced.
1.
Place the Site Master face up on a work surface.
2.
Remove the four rubber corner bumpers by care-
fully sliding the bumpers off of the case corners
(Figure 12).
3.
With the bumpers removed, the access holes for the
case screws are revealed. Use a Phillips screwdriver
to remove the four screws securing the two halves
of the Site Master case together.
4.
Carefully lift up on the right side (as viewed from
the front) of the front half of the case and begin to
separate the two halves.
CAUTION
Do not force or pull the two halves of the
case apart as there are delicate cables at-
tached between the two halves that must be
disconnected first.
5.
Carefully depress the latch tab and disconnect the
LCD display cable from J12 on the main PCB.
6.
Carefully disconnect the keypad interface cable
from J1 on the main PCB.
7.
Carefully disconnect the LCD display backlight ca-
ble from J15 on the main PCB.
8.
Remove the front panel assembly.
9.
Reverse the above steps to replace the front panel
assembly.
NOTE
The corner bumpers only mount one way.
That is, the raised area inside one end of
the bumper (Figure 14) is made to conform
to the contour of the front cover only.
Site Master S113BQ MM
9
Figure 12.
Removing the Corner Bumpers
RAISED AREA
Figure 14.
Corner Bumper Detail
J1
J15
J12
Figure 13.
Site Master Front Panel Cable Connections
