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Symptom Probable Cause Corrective Action Recommended Tools
NO RESISTANCE
750E, 750EA
Console Set
Defective Cables
Power Resistance
• Remove console bolts to access 7-pin
connector. Do not disconnect console
set.
• Enter DA (resistance) test mode.
(Page 3).
• Press + key to force .7 VDC out of
panel.
• Set meter for DC Volts. Measure
between #2 pin and #4 pin at 7- pin
connector.
• Is .7 VDC present? No- replace console
set. If present, continue on.
--------
• Remove right mast cover and handlebar.
• Measure between the #2and #4 wires at
the 7 –pin connector on
the lower board.
• Is .7 VDC present? No- replace cable
for console. If present, continue on.
--------
• DO NOT PEDAL.
• Set meter for resistance. Disconnect 3-
pin connector at the lower control board.
Measure resistance between #1 pin and
#3 pin.
• Resistance should be 10 ohms, +/- 1
ohm.
• If less than 10 Ohms- replace power
resistance. If resistance checks OK,
continue on.
--------
• DO NOT PEDAL.
• Remove main body cover, set meter for
continuity.
• Disconnect brake cable from brake and
lower board.
• Check continuity of all wires in cable.
• Check for cross continuity- this would
indicate multiple shorts in the cable.
• No continuity? Replace Brake cable.
• Yes continuity? Replace lower board.
Note:
Multi-meter
Support Services 800-883-8783 Mon-Fri 8:30am-5:00pm Central Time Zone Fax: 636-272-7148
Page 4
You must pedal at least
30 RPM when
performing any voltage
test. You may require the
assistance of another
person when performing
voltage checks.