C546i Self Powered Elliptical Fitness Crosstrainer
Page 28
Procedure 6.5 - Troubleshooting Hand Held Heart Rate
Circuit Description
The hand held heart rate system is actually a dual system, that is, it can accept a heart rate
signal from either the hand held heart rate contacts on the unit’s handlebar or from a Polar heart
rate chest strap transmitter. Refer to Diagram 6.5 and verify that no jumpers are equipped on
J13, J14, J15 or J16. Also, verify that there is a jumper equipped on the internal chest strap
setting. The internal chest strap setting is the two left hand pins on the three pin connector as
shown below in Diagram 6.5. These settings allow the heart rate system to operate on the
internal chest strap receiver with the chest strap heart rate priority. That is, if both a chest strap
and hand heart rate signal is being received, the system will accept the chest strap signal and
ignore the hand held signal. If a chest strap signal is not being received, the system will accept
the hand held signal.
Note:
There are four typical failure modes for the hand held/chest strap heart rate system. They are:
1 - hand held is normal - no chest strap reading; 2 - no hand held reading - chest strap normal;
3 - no hand held or chest strap reading; 4 - constant or intermittent readings when neither hand
held or chest strap are in use.
Diagram 6.5 - Hand held/chest strap heart rate PCA
Normal hand held reading - No chest strap reading
1.
Access the diagnostic program (Procedure 3.2). Advance to the heart rate display portion of
the diagnostic program. Verify that a chest strap signal is not being accepted with either a
Polar heart rate test transmitter or a known good chest strap transmitter. If this reading is
good, skip to step 3.
2.
Using a Polar heart rate test receiver, verify the operation of the chest strap transmitter
furnished with the unit. If the Polar heart rate test receiver does not receive a signal, replace
the chest strap transmitter.
J13
J14
J15
J16
5 Vdc
Gnd
Lower Right
Upper Right
Upper Left
Lower Left
HR Output
o o o
Internal Chest
Strap Setting
