Technogym Run MED - There Is no Heart Rate Signal

RUN MED: Service & Maintenance Manual - rev. 1.0
Page 6.34
6.12. THERE IS NO HEART RATE SIGNAL
6.12.1. TELEMETRIC RECEIVER HFU
The machine displays this error if:
1. electromagnetic noise saturate the HR receiver which does not display any value due to a
specific SW filter which cut every signal, greater than 220 bpm;
2. the receiver is not working properly;
3. the receiver is not supplied by the display board.
THERE IS NO HR
SIGNAL
Does the supply voltage
correctly reach the input to the
receiver?
Replace the receiv er
2
3
YES
Is the supply v oltage correct at
the output of the display board?
Replace cable TRM-28
Replace the display board
NO
YES
NO
Carry out the
troubleshooting procedure
"THE TELEMETRIC
SIGNAL IS INCORRECT"
1
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:
(1) Carry out the troubleshooting procedure 6.13. “The telemetric hr signal is incorrect”.
(2) Place the tester probes across pins 1 and 3 of connector CN1 of the receiver. The measured
value should be +5 Vdc.
(3) As for step (2) but across pins 1 and 8 of connector CN8 on the display board.