Orban OPTIMOD 8400 - Page 181

OPTIMOD-FM OPERATION
4-7
E) If you have not done so, reassemble the front panel according to step 20 on page 4-
7.
Be sure that you have plugged into the display board all of the cables that
you unplugged when you disassembled the front panel.
F)
Replace the PC Card boards.
a) Carefully plug the rear PC Card board into its socket on the main board.
b) Replace the two screws that hold the rear board to the vertical shield plate.
c) Carefully plug the front PC Card board into its socket on the main board.
d) Replace the screw and nut holding the front board to the angle bracket that is
part of the display shield assembly.
G) Replace the plug connecting a wiring harness and the two plugs connecting ribbon
cables to the main board.
H) Replace the power supply by plugging it in from the rear of the chassis and fasten-
ing it with six screws.
20. Reassembling the Front Panel
A) Replace all knobs on the rotary encoder board.
B) Remount the rotary encoder board on its four standoffs with the screws removed in
the previous step.
C) If necessary, remount the LED board on its two standoffs.
The notch in the board mates with one of the standoffs supporting the LCD
display.
D) If necessary, remount the LCD display on its four standoffs.
The shield plate should now have three assemblies mounted on it: the rotary
encoder board, the small LED board, and the LCD display.
E) Mount the shield plate on the main front panel assembly.
a) Move the plate along the axis of the rotary encoder (at a 45 degree angle to the
main front panel assembly) so that the rotary encoder goes straight through its
clearance hole.
b) Replace and tighten the six screws that fasten the shield plate to the front panel.
Before tightening the screws, be sure that the joystick and both pushbutton
switches protrude through the main panel normally, and that there is no
binding when you operate any control.
F)
If necessary, replace the headphone amplifier board and fasten it to the front panel
using one screw (in the hole closest to the display) and one threaded standoff (in