Welch Allyn Medical Diagnostic Equipment Crib Toy LXi User Manual

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Disassembly and Repair
Welch Allyn Spot Vital Signs LXi
Pump Disassembly
1.
Snip the wire ties (2 places).
2.
Disconnect the pneumatic tubing and unhook the wiring.
3.
Replace with a new pump.
RS232-Communication Circuit Board Disassembly
1.
Remove the pneumatic connector and associated hoses from the pump and the two 
screws in the rear housing. Remove the associated hoses.
2.
Release the catch and remove the cover and inner handle assembly.
3.
Remove the connection port panel.
4.
Remove the two screws inside the back housing and the ribbon cable that hold the 
RS232 board in place. Take care since the connector is easily broken.
5.
Slide the board straight out and remove the wire harness.
6.
Replace with a new circuit board.
Note
For proper blood pressure operation, replace the pump using only the Welch Allyn  
specifed part.
To assure patient electrical isolation, route the pump wires through the rear 
housing clip feature (near the pump terminals) and held in place with a tiewrap to 
the holes in the rear housing at the back of the battery compartment.
To assure patient electrical isolation, do not modify the length of the pump wires.