Technogym Runrace - The Inverter Display Does Not Show any Error

RUNRACE : Service & Maintenance Manual - rev. 2.0
Page 6.23
6.4.9. THE INVERTER DISPLAY DOES NOT SHOW ANY ERROR
This is an anomalous error condition in which the machine display reports an error but the inverter
has not generated an error.
Is the alarm present at the
output of the interf ace board?
YES
NO
YES
2
None
Is LED DL2 on the inv erter
interf ace board illuminated?
Replace the inv erter
NO
1
Is the alarm signal present
at the inv erter output?
YES
Is the alarm signal present
at the input to the inv erter
interf ace board?
Check and/or replace cable
RN-5TQ
Replace the inv erter
interf ace board
NO
NO
YES
Is the alarm present at the
input to the display ?
Check and/or replace cable
RN-1
NO
YES
Replace the CPU board
3
5
Is the alarm present at the
f ree connector CN1?
4
YES
Check and/or replace cable
RN-2
NO