Ventilator UI Theory of Operation
1 - 34 0070-10-0683 AS3000™ Service Manual
1.7.2 Display
The display is a 10.4 inch TFT LCD
5. ON/OFF Backlight ENABLE
6. DIM Contrast adjust
Power of 232 Isolator, J9
PIN NAME FUNCTION
1. 5V Power 5V
2. NC No connection
3. GND Ground
COM1/2
PIN NAME FUNCTION
2 RXD 232RXD TO PC104 INPUT
3 TXD 232TXD TO PC104 OUTPUT
5 GND Ground
Test Point Definition
DESIGNATOR NAME FUNCTION
T5 +5V Logic Power 5V
T6 P12V Power 12V
T9 PWBUS Power Bus
LED Designation
DESIGNATOR STATUS FUNCTION
LT1 GREEN/BLINK Keyboard ready
Backlight Power, J2 (Continued)
PIN NAME FUNCTION