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Main CPU Board
Removal of CPU Board
Reassembly of CPU Board
Revision E
Maintenance: Disassembly Guidelines
NOTE
Before you begin, save the current System Setups to an SD card and print
System Setup report. This will be used to restore the system setups after
replacement of the CPU board.
1.
Remove the battery.
2.
Remove the top cover assembly following the procedures in
page 5-9.
3.
Remove the display/keyboard assembly following the procedures in
Keyboard Assembly"
on page 5-11.
4.
Disconnect all remaining cable connections to the main PCB. These include
cables to the following:
power supply
printhead
battery connect PCB
acquisition module cable
5.
Remove the COMM board.
6.
With a TORX driver, remove the mounting screws holding the main PCB in
place. They are located around the outside edges of the main PCB. Set screws
aside for mounting new board.
7.
Remove the harness cable.
8.
Lift the main PCB from the unit.
1.
Insert the new CPU board in place and mount using the screws set aside during
disassembly.
2.
Reassemble the top cover and display/keyboard assemblies by reversing the
steps for removal.
3.
Insert rear bezel into slot on back of MAC 5500 assembly as shown below.
MAC 5500 resting ECG analysis system
2020299-020
"Top Cover"
on
"Display/
5-13
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