SPORTS ART C51R, Repair Manual

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C51R/C51U Bike Repair Manual (Electronics) - Troubleshooting
No Speed Count Troubleshooting
Order Part Description
1
Drive
Board
LED 5 should flash every time the reed switch passes the magnet. If not, inspect the
following. See 5-2-2.
2 Cable Inspect the reed switch cable for continuity. Inspect connections.
3
Reed
Switch
Set the multimeter to audible continuity. Place probes on the ends of both reed switch
wires. Spin the flywheel. When the magnet passes the reed switch, the reed switch
should activate (a click sound can be heard), the multimeter should beep, indicating
continuity. If not, replace the reed switch. (Confirm that the magnet attracts metal and
the attractive side faces the reed switch.)
4
Data
Cable
Inspect the cable and connections. On C51R, inspect the hub board connections. If
issue occurred just after installation, inspect cable connections in the pedestal.
5
Display
Board
Inspect the main IC for proper connection. See 6-2-4.
6-8-2