5-14 MAC™ 3500 Resting ECG Analysis System Revision L
2021337-036
Maintenance: Keyboard/Top Cover Assembly Removal & Reassembly
Keyboard/Top Cover Assembly Removal & Reassembly
Removal of Keyboard/Top Cover Assembly
NOTE
Removal of the keyboard/top cover assembly is
required in order to replace the
following:
Printhead assembly (Refer to “Printhead Assembly Replacement” on page
4 5-18.)
Main PCB board (Refer to “Main CPU Board Replacement” on page 4
5-22.)
Acquisition PCB (Refer to “Acquisition Board Replacement” on page 4
5-19.)
1. Remove the battery as described in “Batte
ry Replacement”.
2. Turn the unit over so the bottom side is up and remove the two Torx fasteners
show
n in the figure below.
3. Turn the unit right side up and press the w
riter button and raise the top of the
uni
t.
4. Remove the five Torx fasteners from inside the paper tray.
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