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Printhead Replacement
Removal
Reassembly
COMM Board Replacement
Revision E
Maintenance: Disassembly Guidelines
1.
Remove the top cover following the procedure above.
2.
Using a Phillips head screw driver, remove the two screws that hold the
printhead to the printhead mounting plate.
3.
Open the writer assembly, disconnect and remove the printhead.
1.
Record the resistance value of the new printhead.
2.
Connect the new printhead to the ribbon cable.
3.
Hold the new printhead FIRMLY in place against the two metal tabs on the
printhead mounting plate, then tighten the two screws.
4.
Replace the top cover and power up the unit.
5.
Go to the Setup menu and enter the new printhead resistance value.
6.
Run a Writer Test test (See Chapter 5).
Use the following procedure to replace the communications board.
1.
Remove the AC power cable and battery.
2.
Using a Torx #10 screwdriver, remove the two screws from the panel
surrounding the LAN and modem ports.
3.
Grasp the side edges of the communications board and work it back and forth in
the slot as you pull it out along its rails.
MAC 5500 resting ECG analysis system
2020299-020
5-19
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