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Symptom Probable Cause Corrective Action Recommended Tools
IRREGULAR OR
NO DISPLAY
500R, 500U
DC Adaptor
Adapter Plug or
Jack
Control Panel
Cables
• Connect DC Adapter to 110 VAC power
supply.
• Look for printed output on adapters
label. If greater than 9 VDC computer
board may be damaged.
• Test for 9VDC output. If not 9 VDC
then replace adaptor.
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• Connect DC plug to Bike. Does it seat
into the socket properly? If not- replace
adapter or jack.
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• Check DC voltage between pins 2 and 4
for 9 VDC on 5PB. (Page 18)
• If 9 VDC is found replace the Control
Panel.
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• Perform continuity checks on all upper
and lower cables.
• Replace defective cables.
• If cables OK- replace DC Jack.
Multi-meter
Support Services 800-883-8783 Mon-Fri 8:30am-5:00pm Central Time Zone Fax: 636-272-7148
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