There Is No Heart Rate Signal - Technogym Bikerace Service Maintenance Manual

6.7. THERE IS NO HEART RATE SIGNAL

This error occurs when the receiver is not working or when it does not receive the power supply
from the CPU board.
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) Place the tester probes between pins 1 (signal) and 3 (ground) (corresponding to the red and
black wires) of the 4-pin cardio receiver connector: the voltage should be +5 Vdc.
(2) Place the tester probes between pins 1 (signal) and 3 (ground) (corresponding to the red and
black wires) of connector CN3 on the display CPU board: the voltage should be +5 Vdc.
Page 6.14
THERE IS NO
CARDIO SIGNAL
Is the supply voltage on the
receiver connector correct?
NO
Is the supply voltage on
connector CN3 of the CPU board
correct.
NO
Replace the display CPU
board
BIKERACE: Service & Maintenance Manual - rev. 1.1
1
YES
Replace the receiver
2
YES
Replace or repair cable
BK-7