SportsArt Fitness C575U, Repair Manual

Page: 18 / 24

Troubleshooting Troubleshooting Troubleshooting Troubleshooting
Model: C575R
Malfunction: No resistance.
Circumstance: I pedal on the bike, but there is no resistance.
Possible causes: 1. Display has no RPM value.
2. There is no output voltage from the alternator.
3. Drive board is defective.
Troubleshooting: 1. Inspect whether the display receives the RPM
signal.
2. Inspect whether the alternator can start the unit.
3. Inspect all cable connections.
4. Inspect the F2 fuse on the drive board. Measure alternator
output voltage. Or replace the drive board as a test.
5. Inspect electro-magnet wire connections.
3-3-2
Drive
Board
Display
board
Electronic
Magnet
Speed
sensor
Speed sensor
Blue-blue
Level voltage（V）
LEVEL 1 3 v
LEVEL 10 11 v
LEVEL 20 18 v
Alternator
Electronic-magnet