PC2/PC2X Disassembly/Assembly
Top Enclosure
4-11
4. The flat ribbon cables connected to J601 and J602 use wire trap connectors. The shielding
has been removed from the end of these cables to expose the wires. The wires are directly
inserted into these connectors.
Lift up the sides of each connector. This unlocks the trap to free the cable wires. Gently
pull each cable up out of the connector. Note the marking (red or black) on each cable that
indicates the connection to Pin 1; you’ll need to reconnect the marked edge of the cable to
Pin 1 when you replace the Front Panel Board.
5. Remove the cable locking clip and disconnect the flat ribbon cable at J604 on the Front
Panel Board. Be sure to set the cable locking clip safely aside so that you can install it
when you reconnect the cable.
Note: The flat ribbon cable at location J604 was disconnected following the procedure to
remove the Connector Board. It is not necessary to disconnect it from the Front Panel
Board. However, if you are replacing the Front Panel Board with a replacement board, be
sure to disconnect the cable and connect it to the replacement board.
6. Five of the screws that secure the right enclosure support wall also secure the front panel
edge of the Front Panel Board. You have already removed the enclosure support wall, but
two screws remain securing this edge of the board. See Figure 4-8, and remove the two
remaining screws.
Figure 4-8 Front Panel Board, screw locations
7. Remove the six screws that secure the three PC board clamps (two screws per clamp).
These screws also secure the rear panel edge of the Front Panel Board.
Ref. Name Cable Type Destination
J601 IBBB flat ribbon Button Board/Wheel Assembly
J602 FP Bridge flat ribbon Slider Board
Table 4-3 Front Panel Board cables
PC board clamps and screws
Front panel edge screws
J604
J601
J602
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