Welch Allyn Spot Vital Signs LXi Service Manual page 68

58 Disassembly and Repair
3. Remove the four screws from the mounting plate and save the fish paper. This
exposes the circuit board.
4. Remove the three Torx screws (T10) on the board (one on bottom and one on either
side of the probe well cover) and lift the board out of the housing and orient the part
as shown.
5. Disconnect all connectors and replace with a new board.
To replace the temperature connector, remove the one screw holding the temperature
board and connector. Verify the fish paper is properly mounted upon reassembly.
When replacing the SpO2/blood pressure housing, verify the orange and white twisted
wire is pushed as far into the
wires to stretch when the SpO2/blood pressure housing is inserted.
handle housing as possible. Failure to do so can cause the
Welch Allyn Spot Vital Signs LXi