Ventilator UI Theory of Operation
1 - 50 046-006272-00 A7™ Service Manual
Warning Light Board Interface, J2
Touch Screen Control Board interface, J4
Display Control Signal Interface, J5
PIN NAME FUNCTION
1 12V Warning Light Board 12V Power Supply
2GND Ground
3 SDA_CPU CPU Board I2C Data Signal
4 SCL_CPU CPU Board I2C Clock Signal
5 3_3V 3.3V Power Supply
6GND Ground
PIN NAME Function
1 5V 5V Power Supply
2 RXD_TOUCH_PANEL Touch Screen Control Board Serial Port Receive Signal
3 TXD_TOUCH_PANEL Touch Screen Control Board Serial Port Transmit Signal
4GND Ground
PIN Name Function
1 LCD_EN LCD Backlight Enable
2 LCD_BR LCD Backlight Brightness Control
3 RXD_TOUCH_PANEL Touch Screen Control Board Serial Port Receive Signal
4 TXD_TOUCH_PANEL Touch Screen Control Board Serial Port Transmit Signal
5GND Ground
6 LED_AC AC Indicator Light Drive Signal
7 LED_BAT Battery Indicator Light Drive Signal
8 SDA_CPU CPU Board I2C Signal
9 SCL_CPU CPU Board I2C Signal
10 TXD_Encoder Serial Port Transmit Signal of the Display Interface Board
11 RXD_Encoder Serial Port Receive Signal of the Display Interface Board
12 Lighting Lighting Control Signal
13 USB+ USB Signal
14 USB- USB Signal
15 Lighting_12V Lighting 12 V Power Supply
16 12V 12V Power Supply
17 12V 12V Power Supply
18 GND Ground
19 GND Ground
20 GND Ground
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