AC Power Board, Volume Display Board, & Tank Valve Motor
Component
Measurement
Location
Black
Lead
Red
Lead
Reading
Unit of
Measure
State
AC Power Board
J2 on Backplane Pin 12 Pin 1 120 VAC
AC power board removed, rover
power on, system idle
F3 on Board
Fuse
end
Fuse
end
0 Ohm Fuse removed, rover power off
F4 on Board
Fuse
end
Fuse
end
0 Ohm Fuse removed, rover power off
LED D2 n/a n/a n/a n/a
LED lights when vacuum system
button is pressed (on)
Volume Display Board J1 on Board
Pin 6 TP3 3.3 VDC Rover power on, system idle
Pin 6 Pin 1 5 VDC Rover power on, system idle
Tank Valve Motor
J1 - Motor Side
Pin 5,
Brown
Pin 3,
Yellow
5 VDC Rover power on, system idle
Pin 5,
Brown
Pin 4,
Blue
1.1 VDC Rover power on, system idle
1.1 - 2.0 VDC
Changing tank valve position,
power on (Auto)
1.1 - 2.0 VDC
Magnet at varying distances, power
on (Manual)
J1 - Wire Harness
Side
Pin 1,
Black
Pin 2,
Red
1.0 - 12.0 VDC
Harness disconnected, changing
tank valve position, power on
5-11