SportsArt Fitness C520U Repair Manual
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SportsArt Fitness C520U Repair Manual

Sportsart fitness c520u/c531u exercise bikes repair manual
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C520U/C531U Repair Manual

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Summary of Contents for SportsArt Fitness C520U

  • Page 1 C520U/C531U Repair Manual...

  • Page 2: Table Of Contents

    1-3-1. Block Diagram - C520U/C531U Electronics 1-4-1. Wire Connections - C520U/C531U Display 1-4-2. Wire Connections - C520U/C531U Drive Board 1-5-1. LED Indicators - C520U / C531U Display Board 1-5-2. LED Indicators - C520U/C531U Drive Board 1-6-1. C520U/C531U Display Specifications 2-1-1. Display Malfunction Troubleshooting Table - C520U/C531U 2-1-2.

  • Page 3: Display Picture - C520/C531

    1-1. Display Picture - C520U/C531U 1-1-1...

  • Page 4: Component Placement - C520U/C531U Display

    1-2. Component Placement - C520U/C531U Display HTR board Display board HR telemetry receiver board 1-2-1...

  • Page 5: Component Placement - C520U/C531U Lower Body

    1-2. Component Placement - C520U/C531U Lower Body Electro- Battery magnet Drive board Reed switch Flywheel with built-in alternator 1-2-2...

  • Page 6: Block Diagram - C520U/C531U Electronics

    1-3. Block Diagram - C520U/C531U Electronics Sensor – L Display HTR board HR receiver Board Sensor – R board Electro-magnet Alternator Drive Board Battery Reed switch Battery charger 1-3-1...

  • Page 7: Wire Connections - C520U/C531U Display

    1-4. Wire Connections - C520U/C531U Display To HTR contact plates (left and right) To drive board To display LED1 Display power To HTR supply board To HR receiver 1-4-1...

  • Page 8: Wire Connections - C520U/C531U Drive Board

    1-4. Wire Connections - C520U/C531U Drive Board To electro-magnet To alternator To battery charger To display board To battery To reed switch 1-4-2...

  • Page 9: Led Indicators - C520U / C531U Display Board

    1-5. LED Indicators - C520U / C531U Display Board Power Indicator LED1 Lit indicates there is incoming power. 1-5-1...

  • Page 10: Led Indicators - C520U/C531U Drive Board

    1-5. LED Indicators - C520U/C531U Drive Board Exterior battery charger fuse F3 Alternator fuse F1 Drive board power Lit indicates there is incoming power. CLK Indicator LED flashes when pedals move. Battery charge Lit indicates there is incoming power to recharge the battery.

  • Page 11: C520U/C531U Display Specifications

    1-6. C520U/C531U Display Specifications Contents Notes Specification AC alternator Power supply 6.4 VA battery Backup power Battery automatically recharges or can be recharged via an exterior supply charger. Electro-magnet Resistance Reed switch Speed detection Resistance LEVEL 1 - LEVEL 20...

  • Page 12: Display Malfunction Troubleshooting Table - C520U/C531U

    2-1. Display Malfunction Troubleshooting Table - C520U/C531U Malfunction Circumstance Inspection and Test Points Suggested Notes Components Cannot The display is not 1. Inspect cable connections. 1. drive board start unit lit; I pedal the 2. Inspect drive board fuse. fuse bike;...
  • Page 13 Telemetry heart Telemetry heart 1. Inspect heart rate transmitter and its batteries. Replace 2. telemetry rate detection rate malfunction batteries if batteries haven’t been replaced for a long time. heart rate malfunction 2. Inspect heart rate receiver board cable connections. transmitter 3.

  • Page 14: Malfunction: Unit Will Not Start (Alternator)

    Troubleshooting Model: C520U/C531U Malfunction: Unit will not start (alternator). Display power indicator LED1 Circumstance: Pedal on the unit; the display does not light. Possible causes: 1. Wires are not connected. 2. Drive board is malfunctioning. Troubleshooting: 1. Inspect wire and bridge board connections.

  • Page 15: Malfunction: Unit Will Not Start (Battery)

    Troubleshooting Model: C520U/C531U Malfunction: Unit will not start (battery). Circumstance: Display shuts off when no one pedals. Inspect IC Possible causes: 1. Wires are not connected. 2. Battery voltage is too low. Troubleshooting: 1. Inspect all wire and bridge board connections.

  • Page 16: Malfunction: No Rpm Value

    Troubleshooting Model: C520U/C531U Malfunction: No RPM value Circumstance: 1. No RPM value appears. 2. When you pedal the display shows no response. Possible causes: 1. Reed switch and magnet 2. Wires are not connected. Troubleshooting: 1. Inspect reed switch and magnet.

  • Page 17: Malfunction: No Resistance

    Troubleshooting Model: C520U/C531U Malfunction: No resistance Circumstance: Pedal the unit. There is no resistance. Possible causes: 1. Wires are not connected. 2. Drive board is defective. Troubleshooting: 1. Inspect all cable connections. 2. Inspect whether RPM value appears when one pedals.
  • Page 18 Troubleshooting Model: C520U/C531U Malfunction: Resistance is excessive. Circumstance: Pedal the bike; resistance is excessively heavy. Possible causes: 1. There is an electrical short in the cables. 2. Drive board components have an electrical short. Troubleshooting: 1. Inspect all cable connections. Inspect cables for damage.

  • Page 19: Malfunction: Telemetry Heart Rate Malfunction

    Troubleshooting Model: C520U/C531U Malfunction: Telemetry heart rate malfunction Circumstance: Heart rate value does not appear. Possible causes: 1. Telemetry transmitter batteries. 2. Heart rate receiver board malfunction. 3. Environmental interference, possibly from lights or speakers. Troubleshooting: 1. Replace the heart rate transmit- ter strap or its batteries.

  • Page 20: Malfunction: Htr Heart Rate Malfunction

    Troubleshooting Model: C531U HTR board indicator LEDs Malfunction: HTR heart rate malfunction Name Explanation Circumstance: Hold HTR contacts with both hands; LED1 Telemetry Flashes to indicate incoming telemetry signal. Heart rate values are incorrect. LED2 HTR contact Lights to indicate hands on contact plates. Possible causes: 1.

  • Page 21: Mechanical Maintenance Schedule - C531U/C520U

    4-1. Mechanical Maintenance Schedule - C531U/C520U Item Inspect and maintain Daily Weekly Monthly Wipe clean unit ◎ exterior. Level unit. ◎ Inspect screws. ◎ Inspect pedals for ◎ noise. Inspect seat height ◎ adjustment. Inspect seat fore/aft ◎ adjustment. 4-1-1...

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C531u

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