SPORTS ART C51R, Repair Manual

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C51R/C51U Bike Repair Manual (Electronics) - Troubleshooting
Test Procedure
1. When the HTR handlebars are not held, the HTR board LEDs do not light.
2. Hold the HTR handlebars with both hands; LED2 on the HTR board lights.
3. LED3 flashes to indicate that the HTR handlebar signal is entering the board.
4. LED4 flashes to indicate that the HTR board is sending a heart rate signal to the display board.
5. Within ten seconds, the heart rate value is displayed in the display PULSE window.
Troubleshooting
If not as above, see the troubleshooting chart shown below.
Order Condition Cause of Malfunction Associated Parts
1 D3 does not light POLAR receiver has no heart rate
input
POLAR transmitter, POLAR receiver,
cables
2 D4 does not light HTR no one is holding the
handlebar HTR handlebar, Cable from handlebar to
HTR board
3 D5 does not light No input from handlebars HTR handlebar, Cable from handlebar to
HTR board
4 D6 does not light HTR board is not sending signal HTR board
5 Display does not
show a heart rate
reading
HTR board signal is not sent to the
display 3-pin cable, display board
6-6-5