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Instruction Manual
IM-106-910Xi, Original Issue
November 2010
6-13
Xi Advanced Electronics
Replacing Front Panel Assembly without CPU Board
1. Loosen the four screws securing the Xi cover. The screws are captive
and do not need to be completely removed.
2. Swing the Xi cover down to expose the inner components.
3. Disconnect the 14-pin ribbon cable going to the Power Supply board. A
new cable is supplied in the replacement kit and should be used if the
old one is damaged.
4. Disconnect the 10-pin ribbon cable(s) going to the I/O Board(s). One
new cable is supplied in the replacement kit and should be used if either
of the ribbon cables are damaged.
5. Remove the wire hinge from the right side of the Xi cover. A paper clip or
similar device can be inserted into the hole on the left side of the cover
to push the hinge out of the cover. A new hinge pin is supplied in the
replacement kit and should be used if the old one is damaged.
6. Place the front panel assembly on the bench. Remove the 4 screws
securing the CPU board to the front cover.
NOTE
Prior to disassembly, observe the position of the plastic bumper with rubber
insert as it is installed over the CPU board. The two longer screws are used
on the top edge of the CPU board passing through the bumper.
7. Lift the CPU board off of the front cover using care not to damage the
board.
8. Disconnect the keypad overlay ribbon cable from the CPU board.
Discard the used front cover with the keypad overlay attached.
9. The keypad window on the new front panel may be supplied with interior
and exterior protective membranes. Remove the protective membranes
prior to final assembly and use of the Xi enclosure.
NOTE
Prior to assembly, it is recommended that the inside of the keypad overlay
window and LCD display window be gently cleaned to remove fingerprints
and accumulated dust.
10. Clean the inside of the keypad overlay window and LCD display window
to remove fingerprints and accumulated dust. Use only a soft cloth; do
not use any detergents or chemicals.
11. Connect the keypad overlay ribbon cable on the new front panel
assembly to the CPU board. Use care not to damage the board.
12. Position the CPU board in place in the front panel assembly.
The new front panel assembly may be supplied with protective clear membranes over the
interior and exterior of the window. Failure to remove the exterior protective membrane may
cause the display to appear distorted. The membrane may be difficult or impossible to
remove after extended use at elevated temperatures.