Instruction manual

Controller Board (CMX)
155
Controller Board (CMX)
Removal
CAUTION To prevent electrostatic damage to electronic components, always wear
a properly grounded static wrist strap when you handle circuit boards.
1. Make a configuration printout of all saved configurations. (Refer to the
User’s Manual.)
2. Prepare the printer for maintenance (page 106).
3. Cabinet Models: Remove the paper path (page 177).
Pedestal Models: Remove the top cover assembly (page 161).
4. Remove the expansion-CT board, if it is installed (page 162).
Remove the PrintNet Ethernet interface assembly, if it is installed (page
185).
5. Disconnect all cable connectors from the controller board. (See page
220.)
6. Loosen but do not remove the two screws securing the controller shield
near serial cable connector J201.
7. Loosen but do not remove the screw securing the controller shield to the
bottom of the card cage, on the left side near the card cage fan.
CAUTION Do not separate the CMX controller board from the controller shield. The
shield serves as a stiffener and ground plane, and is an integral part of
the CMX controller board assembly.
8. Slide the controller board assembly to the left until the keyway clears the
screw securing the controller board to the bottom of the card cage. Lift the
controller board out of the printer.
Installation
CAUTION To prevent electrostatic damage to electronic components, always wear
a properly grounded static wrist strap when you handle circuit boards.
NOTE: P5X05B, P5X10, P5014, and P5X15 printers must use the 40 MHz
CMX controller board.
1. Position the controller board in the card cage, shield side down,
component side up. Engage the screw on the bottom of the card cage in
the keyway in the controller shield. Slide the board to the right until the
serial cable connector J201 on the controller board lines up with the
cutout in the card cage. (See page 220.)
2. Tighten the two screws securing the controller shield near serial cable
connector J201.
3. Tighten the screw securing the controller shield to the bottom of the card
cage.
4. Connect all cable connectors to the controller board, using the
Interconnection Diagram in Appendix A as your guide.