Motus M990T, Service Manual

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10
SYMPTOM PROBABLE CAUSE CORRECTIVE ACTION
Electromagnetic interference from television sets, cell phones,
refrigerator, or motor driven exercise equipment. Keep the treadmill away from the probable cause until
the heart rate readings are accurate.
RF energy source from another chest straps.
Keep another chest strap away more than 1 meter until
the heart rate readings are accurate.
Heart rate reading is
abnormally high or is
displayed even when
Chest Strap or
Contact Heart Rate
sensors are not in
use.
Contact Heart Rate cables are pinched at handle bars. Replace damaged cables.
Chest strap electrodes are not wet enough to sense accurate
heart rate.
Dampen the Chest strap electrodes with tap waters.
The distance between cardio equipments are too close. Maintain the distance more than 30 cm.
Chest strap electrodes are out of monitoring range.
Make sure the chest strap is within 60cm from Wireless
HR PCB.
Chest strap battery is discharged. Replace chest strap or the battery.
Chest strap electrodes are not laid flat or horizontally across
your skin. Make sure the chest strap electrodes lies flat and
horizontally across your skin.
Faulty chest strap. Replace chest strap.
Faulty Wireless HR PCB. Replace Wireless HR PCB.
Heart rate reading
using wireless chest
strap is erratic or not
displayed
Defective cable or bad connection between Wireless HR PCB
and MPU PCB.
Check the cable and connection is no problem.
Faulty CHR PCB. Replace CHR PCB
Dirty handlebar sensors. Wipe stainless steel sensors with a clean soft cloth.
Defective cable or bad connection between CHR PCB and MPU
PCB.
Check the cable and connection is no problem
Contact Heart Rate
reading is erratic or
not displayed .
User may have an unusual heart rate condition. Let different user grasp sensors to detect any variances.