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6300/6310 Treadmill Electronics Repair Manual – Heart Rate
HTR Cable/Handlebar Test Procedure
A lack of continuity or a short in the wiring between the HTR board and handlebars could result in either
no heart rate reading, intermittent readings, or bad heart rate readings.
Follow directions below to test the 5-pin HTR cable. (1) Turn off unit power. Remove the 5-pin cable from the HTR board.
(2) Set multimeter to read continuity. (If your multimeter does not have an audible continuity setting, set your
meter to the 200 OHM setting. A reading of 0 ohms is direct continuity. No reading or OL (open line), indicates no
continuity.) Place probes as indicated in Fig. 1 and 2 below. (3) Normal readings are shown in the charts below.
Fig. 1. Place red probe on points here. Fig. 2. Place black probe on points here.
Continuity Test Short Test
a to A Conductivity GND to A No Conductivity
b to B Conductivity GND to B No Conductivity
c to C Conductivity GND to C No Conductivity
d to D Conductivity GND to D No Conductivity
GND to Frame No Conductivity
Note: Around Oct. 2004, HTR handlebars changed. One contact plate was used on each side. The picture shows two plates,
one on top, one on the bottom, on each side. Testing is similar, but two wires will be open – not conductive.
HR.05
B
D
C
GND
a
c
b
d
A
Left
Right