Nautilus StairMaster ClubTrack 2100 Series Service Manual page 40

Troubleshooting Flowcharts
No Display
There is no
Console display.
No
Is DS3 lit?
Yes
Check that
voltages between
TP7 (GND) and
pin 1 of P1 and
TP7 and pin 8 of
P1 on VSD Board
are 18VDC.
Is the
Replace the VSD
No
voltage
good?
Yes
Remove Console,
and disconnect J4
harness on
Console
Processor PCB.
Check that the
voltage between
pins 1 (black) and
2 (brown) and pins
2 and 8 (purple) of
the wire harness
reads 18VDC.
Is the
No Replace the Main
voltage
good?
Yes
Replace the
Processor PCB.
End
36
Check fuses F1,
F3, and F4 on
Configuration
Plate Assembly.
Are the fuses
Remove P14 on
the VSD Board.
Board
Check that the
voltage between
the red and black
wires reads
End
Replace the VSD
Cable.
Replace the blown
No
good? fuse.
Yes
End
14VAC.
Is the Replace the
No
voltage Configuration
good? Plate Assembly.
Yes
Board.
End
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ClubTrack 2100 Series Treadmill Service Manual