GE Vivid E9

GE H EALTHCARE
D IRECTION GA091568, R EVISION 5 VIVID E9 S ERVICE M ANUAL
5 - 22 Section 5-4 - Top Console with LCD monitor and Operator Panel
5-4-2-2 Operator Panel block diagram
The VIVID E9 Operator Panel is a complex user interaction device with several sub devices. This
includes a trackball with buttons, an alphanumeric keyboard, a custom keyboard, and a touch panel
overlay. See the diagram below for a simplified view of how these devices are interconnected.
The custom keyboard is the main controller for the operating panel. It interfaces all of the additional
rotaries, push buttons, potentiometers etc. It also connects to the touch panel overlay and handles the
push events from this.
Additionally the custom keyboard also interfaces the trackball buttons. These buttons generate events
for both the trackball device and the custom keyboard.
Other functions of the custom keyboard are:
• Volume control for the audio amplifier located in the host system.
• LCD display adjustments: Backlight.
• Download of firmware
• Controlling backlighting of all buttons and knobs, including the A/N keyboard.
Figure 5-11 Operator Panel block diagram
Display
driver
LCD Screen
Touch overlay
A/N keyboard
Custom keyboard
Trackball
USB ports (front)
USB
HUB
USB port to Main
Display
USB connection
to/from host
PWR 48V
On/Off
USB port (rear)