3-12
V60 Ventilator Service Manual
1049766 Rev A
Chapter 3: Theory of Operation
3.2.11 Touch Screen Assembly
•
Uses a robust five-wire resistive panel.
•
Resolves touches in a configuration 0.3 x 0.3-in. matrix.
3.2.12 Nav-Ring Assembly (Rotary Adjustment)
•
Rotary adjustment used to change setting values.
•
Center push-button (on switch PCBA) to accept a value of a selected
field.
3.2.13 Power Switch Overlay
•
Includes power switch, and embedded indicators for power status,
battery charge status, and alarms.
3.2.14 Switch PCBA
•
Interconnection between rotary adjustment and UI PCBA and CPU
PCBA.
•
Provides a center push button and interface to nav-ring.
•
Connects to UI PCBA.
Touch screen assembly
Nav-ring
assembly
Power switch overlay
Switch PCBA