Cubic Communications CDR-3250 - 5-6.7 Keypad Board; 5-6.8 Keypad; Display Module; 5-6.10 Power;Volume Knob

CDR-3250/80 TECHNICAL MANUAL
Issue 2.2 5-9
CAUTION
CAUTION
3. Using no. 1 Phillips screwdriver remove 2
screws from remote control board inside
module (if installed).
4. Lift remote control board with ribbon cable
from module (if installed).
5. Disconnect keyboard ribbon cable.
6. Disconnect display ribbon cable.
7. Disconnect shaft encoder cable.
8. Replace cover on module.
9. Using a 7/64 inch Allen wrench, loosen 8 Allen
screws from module.
10. Pull module from motherboard connector.
11. To replace, reverse removal procedures.
When reinstalling Digital module
cover, ensure ribbon cable from
Remote Control board is routed
correctly. Ribbon cable may be
damaged if pinched between cover
and module housing or
components.
5-6.6 Remote Control Board (optional).
1. Remove bottom cover.
2. Using no. 1 Phillips screwdriver remove all
screws from Digital module cover.
3. Using no. 1 Phillips screwdriver remove 2
screws from remote control board inside Digital
module.
4. Lift remote control board from module.
5. Remove ribbon cable from board.
6. To replace, reverse removal procedures.
5-6.7 Keypad Board.
1. Remove bottom cover.
2. Remove cable from Keypad board.
3. Using 3/16 inch wrench, remove 6 nuts and
attaching hardware from board.
4. Lift board from unit.
5. Ensure rubber conductive keypad remains in
place in front panel assembly.
6. To replace, reverse removal procedures.
5-6.8 Keypad.
1. Remove bottom cover.
2. Remove cable from Keypad board.
3. Using 3/16 inch wrench, remove 6 nuts and
attaching hardware from board.
4. Lift board from unit.
5. Remove rubber conductive keypad from front
panel assembly.
6. To replace, reverse removal procedures.
5-6.9 Display Module.
1. Remove top and bottom cover.
2. Remove top cover from Digital module.
3. Disconnect ribbon cables from Digital module
board connecting to Keypad and Display
module.
4. Replace Digital module cover.
5. Using no. 2 Phillips screwdriver, remove
screws on each side of chassis securing front
panel to chassis. On CDR-3250, also remove 2
screws from center of front panel near main
adjustment knob.
In the next step be careful not to
stress wires attached to front
panel assembly components.
Wires or connectors may break.
6. Carefully rotate top of front panel assembly
away from chassis about 1 inch. Push front
panel assembly down slightly, then rotate top
of front panel assembly away from chassis to
reach components on rear of front panel.
7. Using 1/4 inch nut driver, remove 3 nuts and
attaching hardware securing module to front
panel.
8. Lift module from unit.
9. To replace, reverse removal procedures.
5-6.10 Power/Volume Knob.
1. Using 0.05 inch Allen wrench, loosen set-
screws, and remove knob from shaft.
2. To replace, reverse removal procedures.
5-6.11 Main Adjustment Knob.
1. Using 1/16 inch Allen wrench, loosen set-
screws, and remove knob from shaft.
2. To replace, reverse removal procedures.
Courtesy of http://BlackRadios.terryo.org