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YES
1. Check wiring between motor control board,filter
choke and drive motor.
2. Check for broken choke or shorted
capacitor.
3. Check voltage going to motor directly at points 3 and 4 on
terminal block.
Check voltage output on the KB-TSM at points A+
and A-.
If motor has input voltage but does not turn, Check brushes /
replace motor.
( Drive Motor
#70014)
*Applies to Sprint 2 Only.
SYMPTOM
Elevation System not
functioning
If the Elevation system
works,
but the display is
erratic or
incorrect, check
elevation
potentiometer
calibration.
Disconnect the 6-pin
connector
between the motor and the
wiring
harness. Check for the
following,
on the harness side:
1. 120 VAC between (orange) and (white) wires when the
"UP" switch is
engaged,and 0 VAC when the switch
is disengaged.