Service manual

C762, C764, C764i Stairclimber
Page 24
Procedure 6.1 - Troubleshooting the Lower and Upper
Ribbon Cables
Fault Isolating the Lower Ribbon Cable
1. Turn off the climber with the circuit breaker, then unplug the power cord from the wall outlet.
WARNING
Before continuing with this procedure, review the Warning and Caution statements listed in
Section Nothings you Should Know.
2. Using the screwdriver, remove the two screws that secure the power entry module to the
climber frame. Pull the module out of the climber.
3. Disconnect the lower ribbon cable from the lower PCA.
4. Slide the enclosure collar up on the column.
5. Disconnect the lower ribbon cable from the upper ribbon cable (see Diagram 6.1).
6. Connect the spare ribbon cable between the lower PCA and the upper ribbon cable.
7. Check the operation of the climber as described in Section Four.
8. Disconnect the spare ribbon cable from the lower PCA and the upper ribbon cable.
9. If the climber operated correctly when the spare ribbon cable was installed...
THEN... OTHERWISE...
The original lower ribbon cable is The original lower ribbon cable is not
bad; install a new cable as described bad; continue with the next step.
in Procedure 7.10.
Fault Isolating the Upper Ribbon Cable
10. Remove the screws that secure the display housing to the display base plate.
11. Push each set of tabs towards the edges of the base plate as you lift the display housing.
Note:
Turn over the display housing and support it on the display base plate while you perform the
following steps.