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SPORTS ART C51R Repair Manual

Sports art c51r; c51u fitness bike
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C51R/C51U Bike Repair Manual (Electronics)
C51R Bike
C51U Bike
Version 1; Date: 11-24-04

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Summary of Contents for SPORTS ART C51R

  • Page 1 C51R/C51U Bike Repair Manual (Electronics) C51R Bike C51U Bike Version 1; Date: 11-24-04...
  • Page 2 C51R/C51U Bike Repair Manual (Electronics) The C51R and C51U Bike Repair Manual (Electronics) was made as a troubleshooting guide for technicians in the field. Please send suggestions and comments to bob@sportsartamerica.com. Thank you. Preliminary Manual - Date: 04-15-04 Version 1 – Date: 11-24-04 – Format revised, contents updated.

  • Page 3: Table Of Contents

    C51R/C51U Bike Repair Manual (Electronics) - Contents Table of Contents Chapter 1 – Product and Component Illustrations 1-1-1. C51U Exercise Bicycle Picture 1-1-2. C51R Exercise Bicycle Picture 1-2-1. C51U Part Location: Display 1-2-2. C51R Part Location: Display 1-3-1. C51U Parts: Lower Half 1-3-2.
  • Page 4 C51R/C51U Bike Repair Manual (Electronics) - Contents Table of Contents (Continued) Chapter 3 – Product Operation 3-1-1. Start Up Operation 3-1-2. User Settings (Continued through 3-1-3) 3-1-4. Program Operation 3-1-5. Quick Start Operation 3-1-6. Resistance Operation 3-1-7. Stop Operation 3-1-8. Pause/Reset Operation 3-1-9.

  • Page 5: Table Of Contents (Continued)

    C51R/C51U Bike Repair Manual (Electronics) - Contents Table of Contents (Continued) Chapter 6 – Troubleshooting 6-1-1. Malfunction: Display Will Not Light Up (Continued through 6-1-8) 6-2-1. Malfunction: Key Operation Error (Continued through 6-2-6) 6-3-1. Malfunction: ERR 7 (Continued through 6-3-4) 6-4-1.

  • Page 6: Chapter 1 – Product And Component Illustrations

    C51R/C51U Bike Repair Manual (Electronics) - Illustrations Chapter 1 – Product and Component Illustrations 1-1-1. C51U Exercise Bicycle Picture 1-1-2. C51R Exercise Bicycle Picture 1-2-1. C51U Part Location: Display 1-2-2. C51R Part Location: Display 1-3-1. C51U Parts: Lower Half 1-3-2. C51R Parts: Lower Half 1-4-1.

  • Page 7: C51U Exercise Bicycle Picture

    C51R/C51U Bike Repair Manual (Electronics) - Illustrations C51U Exercise Bicycle Picture 1-1-1...

  • Page 8: C51R Exercise Bicycle Picture

    C51R/C51U Bike Repair Manual (Electronics) - Illustrations C51R Exercise Bicycle Picture 1-1-2...

  • Page 9: C51U Part Location: Display

    C51R/C51U Bike Repair Manual (Electronics) - Illustrations C51U Part Location: Display 1-2-1...

  • Page 10: C51R Part Location: Display

    C51R/C51U Bike Repair Manual (Electronics) - Illustrations C51R Part Location: Display 1-2-2...

  • Page 11: C51U Parts: Lower Half

    C51R/C51U Bike Repair Manual (Electronics) - Illustrations C51U Parts: Lower Half Drive Board On/Off Switch Reed Switch Wire Transformer Resistance Motor/VR Fuse 1-3-1...

  • Page 12: C51R Parts: Lower Half

    C51R/C51U Bike Repair Manual (Electronics) - Illustrations C51R Parts: Lower Half Reed Switch Wire On/Off Switch Drive Board Transformer Fuse 1-3-2...

  • Page 13: C51U Display Front

    C51R/C51U Bike Repair Manual (Electronics) - Illustrations C51U Display Front 1-4-1...

  • Page 14: C51R Display Front

    C51R/C51U Bike Repair Manual (Electronics) - Illustrations C51R Display Front 1-4-2...

  • Page 15: Display Board Front

    C51R/C51U Bike Repair Manual (Electronics) - Illustrations Display Board Front 1-5-1...

  • Page 16: Display Board Back

    C51R/C51U Bike Repair Manual (Electronics) - Illustrations Display Board Back 1-5-2...

  • Page 17: Drive Board

    C51R/C51U Bike Repair Manual (Electronics) - Illustrations Drive Board 1-6-1...

  • Page 18: Other Electronic Components (Continued Through 1-7-2)

    C51R/C51U Bike Repair Manual (Electronics) - Illustrations Other Electronic Components Part Transformer (110V) Part No. 051823020 Part Transformer (220V) Part No. 051823030 Part POLAR Receiver Part No. 111120040 Part Key Board Part No. 052420021 1-7-1...
  • Page 19 C51R/C51U Bike Repair Manual (Electronics) - Illustrations Other Electronic Components (Continued) Part On/Off Switch Part No. 000125020 Part Reed Switch Part No. 052427050 Part VR Set Part No. 051851041 1-7-2...

  • Page 20: Chapter 2 - Product Functions

    C51R/C51U Bike Repair Manual (Electronics) - Functions Chapter 2 – Product Functions 2-1-1. C51R/C51U Product Function Overview 2-1-2. Display Functions: Windows 2-1-3. Display Functions: Light Emitting Diode (LED) Indicators 2-1-4. Display Functions: Keys 2-0-0...

  • Page 21: C51R/C51U Product Function Overview

    C51U – in back of unit, faces front on frame post connected to rear stand. On/Off switch location: C51R - in front of user at about knee level; C51U - behind user, in rear of unit, below the seat.

  • Page 22: Display Functions: Windows

    C51R/C51U Bike Repair Manual (Electronics) - Functions Display Functions: Windows Main Window Shows scrolling messages and resistance illustrations MODE Window (1) MODE Window (2) TIME Lit = Shows time DISTANCE Lit = Shows HR Lit = Shows heart rate distance...

  • Page 23: Display Functions: Light Emitting Diode (Led) Indicators

    C51R/C51U Bike Repair Manual (Electronics) - Functions Display Functions: Light Emitting Diode (LED) Indicators CAL LED lit: RESISTANCE LEVEL LED lit: Shows calorie Shows resistance value DISTANCE LED lit: expenditure Shows accumulated TIME LED lit: Shows exercise distance SPEED LED lit:...

  • Page 24: Display Functions: Keys

    C51R/C51U Bike Repair Manual (Electronics) - Functions Display Functions: Keys ＜MODE＞ ＜HILL＞ ＜RANDOM＞ ＜MODE＞ Press to set MODE Press to run the Press to set random Press to set MODE (2) (1) window display of hill workout workout window display of...

  • Page 25: Chapter 3 - Product Operation

    C51R/C51U Bike Repair Manual (Electronics) - Operation Chapter 3 – Product Operation 3-1-1. Start Up Operation 3-1-2. User Settings (Continued through 3-1-3) 3-1-4. Program Operation 3-1-5. Quick Start Operation 3-1-6. Resistance Operation 3-1-7. Stop Operation 3-1-8. Pause/Reset Operation 3-1-9. Mode Operation...

  • Page 26: Start Up Operation

    C51R/C51U Bike Repair Manual (Electronics) - Operation Start Up Operation Function: 1. Start the unit. Procedure: 1. Plug power cord into the bike and appropriate wall power socket. 2. Turn on the On/Off switch. “C51” scrolls across the display. 3. Press the <START> key to operate with personal details (see User Settings on 3-1-2), or press the <QUICK START>...

  • Page 27: User Settings (Continued Through 3-1-3)

    C51R/C51U Bike Repair Manual (Electronics) - Operation User Settings Function: 1. Establish user information for USER 1 through USER 4. Procedure: 1. Establish user information as follows: (a) Press the <Start> key. The USER indicator lights, and the main window shows “1”, indicating activation of USER 1 mode, as shown on the lower left.
  • Page 28 C51R/C51U Bike Repair Manual (Electronics) - Operation 3. Establish the user time setting as follows: (a) MODE window “TIME” indicator lights. The MODE window shows the time value. (b) Press the RESISTANCE LEVEL＜▲＞/＜▼＞keys to change the time value. Press the ＜ENTER＞key to confirm your selection.

  • Page 29: Program Operation

    C51R/C51U Bike Repair Manual (Electronics) - Operation Program Operation Function: 1. Select PROGRAM operation modes. Procedure: 1. After turning on the unit and establishing user settings, press any PROGRAM key to activate that program. The illustration on the lower left shows the display with a MANUAL program selected.

  • Page 30: Quick Start Operation

    C51R/C51U Bike Repair Manual (Electronics) - Functions Quick Start Operation Function: 1. Start exercising quickly, without setting user details. Procedure: 1. After starting up the unit, the display shows “C51”. 2. Press the＜QUICK START＞key. The display appears as shown below. Note that PROGRAM LEDs do not light.

  • Page 31: Resistance Operation

    C51R/C51U Bike Repair Manual (Electronics) - Operation Resistance Operation Function: 1. Set and show resistance levels. Procedure: When the RESISTANCE LEVEL LED lights: 1. Press the RESISTANCE LEVEL<▲>key. Values in the RESISTANCE LEVEL window (lower left) increase. Actual resistance increases.

  • Page 32: Stop Operation

    C51R/C51U Bike Repair Manual (Electronics) - Operation Stop Operation Function: Stop unit operation. Operation: 1. When the＜STOP＞key is pressed, the display dot matrix shows “T”. TIME and DISTANCE LEDs light, and their respective values appear (lower left). 2.TIME and DISTANCE values appear simultaneously for 4 seconds.

  • Page 33: Pause/Reset Operation

    C51R/C51U Bike Repair Manual (Electronics) - Operation Pause/Reset Operation Function: 1. Operate pause and reset functions. Procedure: 1. Press the＜PAUSE/RESET＞key. The word “PAUSE” scrolls across the display (lower left). Press the＜START＞key or start exercising to recover the time count. 2. Press and hold the＜PAUSE/RESET＞key for two seconds. “C51” scrolls across the display (as shown on the right).

  • Page 34: Mode Operation

    C51R/C51U Bike Repair Manual (Electronics) - Operation Mode Operation Function: 1. Show values for TIME, HR, RESISTANCE LEVEL, WATTS, DISTANCE, CAL SPEED, RPM, SCAN. Procedure: 1. Press the left ＜MODE＞ key to see values for TIME, HR, RESISTANCE LEVEL, WATTS, SCAN (lower left).

  • Page 35: Chapter 4 - Wire Connections

    C51R/C51U Bike Repair Manual (Electronics) - Connections Chapter 4 – Wire Connections 4-1-1. Display Board Wire Connections 4-1-2. Drive Board Wire Connections 4-0-0...

  • Page 36: Display Board Wire Connections

    C51R/C51U Bike Repair Manual (Electronics) - Connections Display Board Wire Connections POLAR DISPLAY BOARD KEY BOARD BOARD DRIVE BOARD 4-1-1...

  • Page 37: Drive Board Wire Connections

    C51R/C51U Bike Repair Manual (Electronics) - Connections Drive Board Wire Connections POWER DISPLAY BOARD CORD ON/OFF SWITCH DRIVE BOARD RESISTANCE VR & MOTOR TRANSFORMER REED SWITCH WIRE 4-1-2...

  • Page 38: Chapter 5 - Component Placement

    C51R/C51U Bike Repair Manual (Electronics) - Placement Chapter 5 – Component Placement 5-1-1. Component Placement on the Display Board 5-1-2. Display Board LED Placement 5-1-3. Display Board Cable Connections 5-2-1. Drive Board Component Placement 5-2-2. Drive Board LED Placement 5-2-3. Drive Board Wire Connections...
  • Page 39 C51R/C51U Bike Repair Manual (Electronics) - Placement Component Placement on the Display Board 5-1-1...
  • Page 40 SPORTS ART INDUSTRIAL CO., LTD. C51R/C51U Display Board LED Placement and Explanation DISTANCE RESISTANCE LEVEL WATTS SPEED TIME SCAN SCAN HILL MANUAL RANDOM INT1 INT2 5-1-2...
  • Page 41 SPORTS ART INDUSTRIAL CO., LTD. C51R/C51U Display Board Cable Connections To drive board To POLAR board To HTR cable (not used in North American Market) To key board 5-1-3...

  • Page 42: Drive Board Component Placement

    C51R/C51U Bike Repair Manual (Electronics) - Placement Drive Board Component Placement 5-2-1...

  • Page 43: C51R/C51U Bike Repair Manual (Electronics) - Placement

    C51R/C51U Bike Repair Manual (Electronics) - Placement Drive Board LED Placement LED1 - Power Indicator LED2 - Motor Power Indicator Lit indicates power to Lit indicates power is available the board. to the motor. LED4 – Level Down Indicator When lit, VR motor operates.

  • Page 44: Drive Board Wire Connections

    C51R/C51U Bike Repair Manual (Electronics) - Placement Drive Board Wire Connections to display transformer to resistance VR/motor to power to reed cord switch 5-2-3...

  • Page 45: Chapter 6 - Troubleshooting

    C51R/C51U Bike Repair Manual (Electronics) - Troubleshooting Chapter 6 – Troubleshooting 6-1-1. Malfunction: Display Will Not Light Up (Continued through 6-1-8) 6-2-1. Malfunction: Key Operation Error (Continued through 6-2-6) 6-3-1. Malfunction: ERR 7 (Continued through 6-3-4) 6-4-1. Malfunction: No Resistance Motor Movement (Continued through 6-4-4) 6-5-1.

  • Page 46: Malfunction: Display Will Not Light Up (Continued Through 6-1-8)

    C51R/C51U Bike Repair Manual (Electronics) - Troubleshooting Malfunction: Display Will Not Light Up Turn on unit power switch. Display board does not beep, and display does not light up. Operation Diagram DISPLAY BOARD POWER CORD DRIVE BOARD TRANSFORMER ON/OFF SWITCH...
  • Page 47 C51R/C51U Bike Repair Manual (Electronics) - Troubleshooting Normal Operation Order Part Operation Power Cord 1.The cord supplies power from the wall power socket to the unit. Fuse and Fuse 1.Power passes through the fuse. The fuse protects components. When Holder current is too high, the fuse breaks.

  • Page 48: Troubleshooting

    C51R/C51U Bike Repair Manual (Electronics) - Troubleshooting Troubleshooting Order Part Troubleshooting 1.Inspect the connection of the power cord to the bike and wall socket. Inspect wall Power Plug socket voltage. 1.Inspect the fuse holder and spring. Inspect the fuse. Fuse and 2.Put in a good fuse and test for power past the fuse.
  • Page 49 C51R/C51U Bike Repair Manual (Electronics) - Troubleshooting Transformer Voltage Test Test Configuration 6-1-4...
  • Page 50 C51R/C51U Bike Repair Manual (Electronics) - Troubleshooting Transformer Power Test Procedure 1.Make sure that transformer wires are connected to the drive board at the CN2 connector. 2. Put the multimeter on the 500 VAC setting. Turn on unit power. 3. Put multimeter probes on like-colored wires, starting with the two red wires (120V markets), or the two blue wires (220V markets), as shown below.
  • Page 51 C51R/C51U Bike Repair Manual (Electronics) - Troubleshooting Drive Board VCC Voltage Test Procedure 1. Turn on unit power. Power switch lights. 2. Under normal conditions, drive board LED1 and LED2 indicators light. Troubleshooting If drive board LED1 and LED2 power indicators do not light, investigate as follows: 2.Inspect whether CN1 is connected properly.
  • Page 52 C51R/C51U Bike Repair Manual (Electronics) - Troubleshooting Display Board VBB Circuit Voltage Test Test VBB circuit voltage across L7 and L8. Test Procedure 1. Turn on unit power. Drive board LED1 and LED2 light. 2. Put the multimeter to the 20 VDC setting. Place probes on inductors L7 and L8 as shown.
  • Page 53 C51R/C51U Bike Repair Manual (Electronics) - Troubleshooting Display Board VCC Circuit Voltage Test Test VBB circuit voltage across L1 and L6. Test Procedure 1. Turn on unit power. Drive board LED1 and LED2 light. 2. Put the multimeter to the 20 VDC setting. Place probes on inductors L1 and L6 as shown.

  • Page 54: Malfunction: Key Operation Error (Continued Through 6-2-6)

    C51R/C51U Bike Repair Manual (Electronics) - Troubleshooting Malfunction: Key Operation Error After turning on the unit, the display operates as if keys were pressed, even though no key was pressed. Or the user presses a key, but the display shows no reaction.
  • Page 55 C51R/C51U Bike Repair Manual (Electronics) - Troubleshooting Possible Reasons for Malfunction 1. The key has a “short,” so its circuit is conductive when the key is not pressed. Command signals are then issued when they should not be issued. 2. The key is stuck “open,” so its circuit is not conductive when the key is pressed. When you press the key nothing happens.
  • Page 56 C51R/C51U Bike Repair Manual (Electronics) - Troubleshooting Key Test 1. Test for “short” when the key is not pressed: (a) Put multimeter to the ohm setting. Place probes on two points on one side of the key. (b) Normal reading when the key is not pressed down: OL or “open” as shown on the lower left.
  • Page 57 C51R/C51U Bike Repair Manual (Electronics) - Troubleshooting Display Board Connectors and IC Notes: When a key activates even though it has not been pressed, disconnect connector CN4 from the display board. If the problem desists and the cable is good, the key is at U1 Main Program IC fault.
  • Page 58 SPORTS ART INDUSTRIAL CO., LTD. Display Board Key Test 1. Test for “short” when the key is not pressed: (a) Put multimeter to the ohm setting. Place probes on two points on one side of the key as shown. (b) Normal reading when the key is not pressed down: OL or “open” as shown on the lower left.
  • Page 59 C51R/C51U Bike Repair Manual (Electronics) - Troubleshooting Key Definition Illustrations Display Board Key Circuit Board Hill Interval 1 Level Up Start Random Enter Mode Mode Level Down Manual Interval 2 Pause/Reset Stop Quick Start 6-2-6...
  • Page 60 C51R/C51U Bike Repair Manual (Electronics) - Troubleshooting Malfunction: ERR 7 When either the display main IC does not detect resistance VR voltage or the voltage exceeds the range, ERR7 appears on the display. Operation Diagram DISPLAY BOARD SIGNAL DRIVE BOARD...
  • Page 61 Data Cable 1.Inspect the data cable and its connections on the drive board and the display board and at the hub board on C51R. Also, make sure that VR wires are in place properly. Display Board 1. Inspect whether the main program IC U1 is in place properly. See 6-2-4.
  • Page 62 C51R/C51U Bike Repair Manual (Electronics) - Troubleshooting VR Output Voltage at the Drive Board Test Configuration 6-3-3...
  • Page 63 C51R/C51U Bike Repair Manual (Electronics) - Troubleshooting VR Output Test Procedure 1. Put multimeter to the 20 VDC voltage setting. Place probes on the VR connector, CN4, white and blue wires. 2. Turn on unit power. Normal voltage reading: 0.4 to 4.6 VDC.

  • Page 64: Malfunction: No Resistance Motor Movement (Continued Through 6-4-4)

    Description Display 1.If the key beeps when pressed, assume that the signal was sent. Data 1.Inspect the cable and connections. On C51R, inspect the hub board connections. If Cable issue occurred just after installation, inspect cable connections in the pedestal.
  • Page 65 C51R/C51U Bike Repair Manual (Electronics) - Troubleshooting Motor Voltage Test Test Configuration 6-4-2...
  • Page 66 C51R/C51U Bike Repair Manual (Electronics) - Troubleshooting Motor Voltage Test Procedure 1. Put multimeter to the 20 VDC setting. Place probes on the VR wires (brown and orange) on the drive board as shown on 6-4-2. 2.Turn on unit power. The display lights up.
  • Page 67 C51R/C51U Bike Repair Manual (Electronics) - Troubleshooting Motor Ohm Test Test Configuration Test Procedure 1. Disconnect the CN4 wire connector from the drive board. 2. Put the multimeter to the ohm setting. Place probes on the motor green and orange wires as shown.

  • Page 68: Malfunction: Polar Heart Rate Error (Continued Through 6-5-4)

    C51R/C51U Bike Repair Manual (Electronics) - Troubleshooting Malfunction: Polar Heart Rate Error The user puts on the Polar strap. But there is no Polar heart rate reading, or reading differs from the actual heart rate. Operation Diagram DISPLAY POLAR POLAR...
  • Page 69 C51R/C51U Bike Repair Manual (Electronics) - Troubleshooting Possible Causes of Malfunction 1. Polar transmitter malfunction: No heart rate is detected or transmitted. 2. Polar receiver malfunction: The heart rate signal is not received. 3. Interference is disrupting POLAR receiver operation.
  • Page 70 C51R/C51U Bike Repair Manual (Electronics) - Troubleshooting Testing the Polar Heart Rate Function Polar Function Emblem Heart Rate Window HR Indicator Lights Polar strap. Two heart rate sensors are on side not shown. The transmitter is encased under the Polar logo.
  • Page 71 C51R/C51U Bike Repair Manual (Electronics) - Troubleshooting Test Procedure 1. Put on the Polar strap, making sure it makes good contact with your skin. 2. Turn on unit power. Sit on the bike seat within 2 1/2 feet from the display.
  • Page 72 C51R/C51U Bike Repair Manual (Electronics) - Troubleshooting Malfunction: Heart Touch Rate (HTR) Reading Error Hold onto the HTR handlebar. The display does not show any heart rate reading. Do not hold onto the HTR handlebar. The display shows a heart rate reading.
  • Page 73 C51R/C51U Bike Repair Manual (Electronics) - Troubleshooting Normal Operation Order Part Operation 1.Hold onto the HTR handlebars with both hands. Handlebars 2.Handlebars detect the user’s heart rate. HTR Handlebar 1.The left and right HTR handlebar wires transmit the heart rate to Wires the heart rate board.
  • Page 74 C51R/C51U Bike Repair Manual (Electronics) - Troubleshooting Troubleshooting Order Part Troubleshooting 1. Clean the HTR handlebars. Handlebar 2. Test the HTR cables. 1. Inspect whether the HTR handlebar cable is broken or crimped. Cable 2. Test the HTR wire. 1. Inspect the LEDs on the HTR board when the handlebars are held.
  • Page 75 C51R/C51U Bike Repair Manual (Electronics) - Troubleshooting HTR Board Test HTR Board LED Placement and Definitions LED1 LED2 LED3 LED4 LED Definitions Color Name Explanation LED1 POLAR Heart Rate Flashes to indicate incoming POLAR heart rate signal. LED2 Green HTR Handlebar Lights when someone holds the heart rate grips.
  • Page 76 C51R/C51U Bike Repair Manual (Electronics) - Troubleshooting HTR Board Test HTR Board LED Placement and Definitions LED1 LED2 LED3 LED4 LED Definitions Color Name Explanation LED1 POLAR Heart Rate Flashes to indicate incoming POLAR heart rate signal. LED2 Green HTR Handlebar Lights when someone holds the heart rate grips.
  • Page 77 C51R/C51U Bike Repair Manual (Electronics) - Troubleshooting Test Procedure 1. When the HTR handlebars are not held, the HTR board LEDs do not light. 2. Hold the HTR handlebars with both hands; LED2 on the HTR board lights. 3. LED3 flashes to indicate that the HTR handlebar signal is entering the board.
  • Page 78 C51R/C51U Bike Repair Manual (Electronics) - Troubleshooting Testing the HTR Cable (5-pin cable to HTR handlebars) Test Procedure: 1. Do not turn on unit power. Disconnect the HTR board 5-pin cable connector. 2. Put multimeter to the 200 ohm setting or audible continuity setting.

  • Page 79: Malfunction: Fuse Breaks (Continued Through 6-7-2)

    C51R/C51U Bike Repair Manual (Electronics) - Troubleshooting Malfunction: Fuse Breaks 1. Turn on unit power. Display indicators do not light. Main fuse is broken. 2. Replace the fuse. Turn on unit power again. The fuse breaks again. Operation Diagram DISPLAY BOARD...
  • Page 80 C51R/C51U Bike Repair Manual (Electronics) - Troubleshooting Fuse Holder Operation When the amp draw exceeds the fuse spec, the fuse breaks. Its breaking protects other components from damage. Drive board component failure is the most common cause of broken fuses.
  • Page 81 C51R/C51U Bike Repair Manual (Electronics) - Troubleshooting Fuse Holder Operation When the amp draw exceeds the fuse spec, the fuse breaks. Its breaking protects other components from damage. Drive board component failure is the most common cause of broken fuses.

  • Page 82: Malfunction: No Speed Count (Continued Through 6-8-2)

    C51R/C51U Bike Repair Manual (Electronics) - Troubleshooting Malfunction: No Speed Count When you pedal on the bike, the speed does not appear on the display. Speed Count Operation Operation Diagram Order Part Description DISPLAY Flywheel Pedal on the bike. The flywheel rotates.
  • Page 83 If not, replace the reed switch. (Confirm that the magnet attracts metal and the attractive side faces the reed switch.) Data Inspect the cable and connections. On C51R, inspect the hub board connections. If Cable issue occurred just after installation, inspect cable connections in the pedestal.

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