Troubleshooting
Model: C520U/C531U
Malfunction: Telemetry heart rate malfunction
Circumstance: Heart rate value does not appear.
Possible causes: 1. Telemetry transmitter batteries.
2. Heart rate receiver board malfunction.
3. Environmental interference, possibly from
lights or speakers.
Troubleshooting: 1. Replace the heart rate transmit-
ter strap or its batteries.
2. Inspect heart rate receiver board connections.
3. Inspect the HTR board LEDs.
3-6-1
Display
board
HR receiver
board
Telemetry heart rate receiver board
