Technogym Spazio Forma - The Inverter Display Does Not Show any Error

SPAZIO FORMA: Service & Maintenance manual - rev. 1.0
Page 6.21
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 there an alarm signal
asserted at the output of the
driv er board?
NO
YES
2
No error displayed
Replace the inv erter
1
Is there an alarm signal
asserted at the inv erter
output?
YES
Is there an alarm signal
asserted at the input to the
driv er board?
Check and/or replace cable
SF-7
Replace the driv er interf ace
board
NO
YES
Is there an alarm asserted at
the input to the display ?
Check and/or replace cable
SF-21A
NO
YES
Replace the CPU board
3
5
Is there an alarm on trailing
connector CN28?
YES
Check and/or replace cable
SF-12
NO
4
NO
Follow the procedure step by step to correctly diagnose the problem. Take particular care with the
checks highlighted by circled numbers, which are described in detail below: