6.11 Alarm Speaker Removal/Installation - Nellcor NPB-190 Service Manual

6.11 ALARM SPEAKER REMOVAL/INSTALLATION

Installation
Caution: When installing the UIF PCB, hand-tighten the five screws to a
maximum of 10 inch-pounds. Overtightening could strip out the inserts in
the top case, rendering them unusable.
7. Place the UIF PCB in the top case.
8. Install the five screws in the UIF PCB.
9. Lift up on the outer shell of J5 on the UIF PCB until it clicks. Insert the
keypad ribbon cable into J5 of the UIF PCB. Slide the outer shell of J5
down until it clicks.
10. Connect the speaker cable to J3 of the UIF PCB.
11. Slide the Display PCB into the grooves in the top case being careful to align
the male pins from the Display PCB to connector J4 on the UIF PCB.
12. Complete the procedure in paragraph 6.5.
Removal
1. Complete the procedure described in paragraphs 6.2 and 6.4.
2. Disconnect the speaker wire harness for J3 on the UIF PCB (see Figure 6-
10).
3. Pull the holding clip towards the center of the monitor and lift the speaker
from the top housing.
Section 6: Disassembly Guide
6-11