Johnson JAR-5100, Service Manual

Page: 17 / 79

No RPM is displayed during the exercise
(JPC/B/S/E)
Possible causes:
1. Console cable is
damaged or the console
cable is not connected
properly.
2. Console is damaged.
u
(3 for JPC/B)
3. Control board is
damaged
u
(4,5&6 for JPC/B)
4. Speed sensor is
misaligned(for JPS/E)
5. Poor connection of the
sensor.
6. Sensor is damaged(for
JPS/E)
Fix:
1. Remove the console and check if the terminal of
console cable is connected properly to the console.
u
If it is not connected well.
Ø
Connect the terminal properly.
Ø
If cable is damaged, replace it with a new one.
2. Console is damaged, replace it with a new one.
3. Open the side covers of the fitness then replaces the
control board with a new one.
4.
Check if the sensor is misaligned.
If it is, place the
sensor in the correct position.
5. Open the side covers of the stepper and check if the
connection of the sensor is connected properly.
u
If it is not connected well.
Ø
Connect the terminal properly.
u
If cable is damaged, replace this with a new one
6.
Sensor is damaged, replace it with a new one
2-2 Revision: 1.0 Date: 2001/06/01