49
Voltage Tests
Variance in voltage affects treadmill performance. Here is how to trace the voltage into and out of the
8700 series treadmill.
Confirm incoming voltage: 120/220 VAC where the line cord attaches to treadmill. It could be; relay board, lower SCR board, terminal block or lower harness.
Confirm
Confirm 10 VDC (for 110v) and 20 VDC (for 220v) out of Motor Control Board per mile per hour. See example
Example: (Speed set @ 3.0mph)
SCR: Measure between MTR+ and MTR-
PWM: Measure between A+ and A-
In both of these examples we have should have a voltage reading of 30VDC for 110v and 60VDC for 220v @3mph.
Confirm incoming voltage: 120VAC between L1 and L2 wires on PWM. For 115v and 230v rated PWM’s acceptable variance is + or - 8%.
SCR lower boards (CLUB & LTD) acceptable variance is + or - 10%.
Confirm incoming voltage: