Wireless Heart Rate Does Not Work; Possible Sources Of Interference Signals Include, But Not Limited To - Precor TRM10/GEN06 Service Manual

Figure 19: Hand Held - Chest Strap Heart Rate PCA

Wireless Heart Rate Does Not Work

1 Verify wireless heart rate with a known good chest strap transmitter
or test transmitter. If the heart rate reading is erratic,
incorrect, or absent, continue with step 2.
NOTE: It may be necessary to lean in closer to the console at first to
allow receiver to begin to acquire a heart rate signal.
2 Verify that the HHHR board has the correct operating voltage.
Connect a voltmeter to VCC and Ground on the Power/Signal connector.
The voltage should read between 4.5 and 5.5VDC.
3 Identify other sources of wireless interference signals in close
proximity to the unit (such as Wi-Fi networks, cordless phones,
etc.).
NOTE: Wi-Fi network is transmitting in close proximity to the treadmill
the heart rate system MAY pick it up. Using an ohmmeter, verify that
upper and lower PCAs have a good electrical path to chassis ground.
4 If the above procedures do not correct the problem, replace the
heart rate board.

Possible sources of interference signals include, BUT NOT LIMITED TO:

 Wi-Fi Network Routers
 Cordless Telephones
 Cell Phones
 Electronic Dog Fences
 Garage Door Remotes
 Noisy AC feeds
 Florescent light ballasts
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