Start-Up.circuit.testing - Nautilus R916 Service Manual

Start-Up
Circuit
Testing
Connect external
power supply
Does
Console turn No
on?
Yes
Unplug external
power supply
Confirm the
magnetic pick-up
on the alternator is
mounted such that
its face is parallel
and within 1mm of
every fin on the
speed disk
Adjustment
No
required?
Yes
Tighten magnetic
pick-up securely,
and confirm the
sensor is free of
contact from the
sensor
Unplug the speed
sensor from the
27451 at J2
Have a helper
pedal bike at 25
RPM or greater
while measuring
the AC voltage on
J2 pins 1 and 2
Voltage
measure 4VAC No
or more?
Yes
Replace 27451 Replace the
PCB magnetic pick-up
Using the Battery
Charge Testing
section as a
reference, confirm
operation of
external power
supply and
external power
cable
9V +/- 10%
measured on TP1?
Yes
~8V
measured on J5
#1?
Yes
Perform continuity
check on main
interface cable,
pins 1 and 10
Continuity
OK?
Yes
Replace console
Nautilus® Commerical Series Bike Service Manual
Start-Up Circuit Testing
No
No
Replace 27451
PCB
General bike
electrical testing
No
Replace or repair
main interface
cable
General bike
electrical testing
31