Service manual Disassembly procedure 69
b. Remove the NIBP module.
NIBP reassembly notes
The shorter tubing section contains the air filter. It connects to the pump input/suction
fitting on the outer edge of the front.
The longer tubing section contains the check valve. It connects to the pump pressure/
output fitting in the center of the pump and to the manifold on the NIBP board.
Remove and replace the speaker
1. Perform the following disassembly procedures to access the speaker:
• Remove and disconnect the battery.
• Separate the front and rear chassis.
• Disconnect and remove the main board from the rear chassis assembly.
WARNING You must characterize the NIPB module whenever you replace any
NIBP component (pump, tubing, air filter, check valve, or NIBP module).
WARNING If the NIBP module is not properly characterized, the pump could
overinflate a neonatal cuff, which could be hazardous to neonatal patients. (See
“NIBP characterization” on page 36.)
Caution Do not confuse the NIBP pump power cable connection with the
speaker cable connection. On monitors with the newer NIBP module, the
connectors are similar.
Air filter
Check valve
Output
Input
To the NIBP module
Air flow
White
Clear
Caution Avoid the following:
• Stacking or piling-up unpackaged speakers
• Placing the speaker near a magnetic field with high gauss
• Rough handling of the speaker assembly
• Placing pressure on the speaker magnet and terminal area
• Pulling on the speaker wires
• Applying direct pressure to the speaker mylar cone
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