21
KEY SENSORS AND KEY LIGHTS
WIRING DIAGRAM
AACE13017
From Power
Distribution
Board
AACB13000
Key Controller
Board
CE13003
CE13021
CE13002
CE13021
CE13001
CE13021
CE13000
CE13021
AACB3400A
Normally Blocked - so LED is ON
Once key is pressed, Sensor is not
blocked, so LED is OFF
AACE13021
A
A
C
E
1
3
0
3
2
A
A
C
E
1
3
0
3
3
Each Red and Black wires
go up to the marquee to
power marquee key lights
Key Lights
Four sets of LED’s
per this example
Key Sensors
Four sets of sensors
per this example
A5CBL5900
USB Communication
to Motherboard
Red LED is Power.
Yellow LED is ON
when board is com-
municating to the
motherboard via USB
cable
