SportsArt Fitness T611 Repair Manual
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SportsArt Fitness T611 Repair Manual

Sportsart fitness t611 treadmill
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T611 Repair Manual (Electronics)

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Summary of Contents for SportsArt Fitness T611

  • Page 1 T611 Repair Manual (Electronics)

  • Page 2: Table Of Contents

    3-8-2. Troubleshooting – Fuse Broke after Motor Moves –T611 3-8-3. Troubleshooting – Fuse Broke after Use – T611 3-9-1. Troubleshooting – ERR-1 Appears before Motor Moves – T611 3-9-2. Troubleshooting – ERR-1 Appears after Motor Moves – T611 3-10-1. Troubleshooting – ERR-3 – T611 3-11-2.
  • Page 3 4-4-1. Inspection and Measurement – Motor Voltage Measurement – T611 4-5-1. Inspection and Measurement – Incline Voltage Measurement – T611 4-6-1. Inspection and Measurement – VR Voltage Measurement – T611 4-7-1. Inspection and Measurement – Incline Motor and VR Calibration – T611...

  • Page 4: Product Picture - T611

    1-1. Product Picture – T611 1-1-1...

  • Page 5: Overlay - T611

    1-2. Overlay – T611 1-2-1...

  • Page 6: Component Placement - T611 Display Board

    1-3. Component Placement – T611 Display Board Telemetry heart rate receiver board Display board 1-3-1...
  • Page 7 1-3. Connections-T611 Bridge Board HTR board Bridge board To Safety key board Soft key 1-3-2...

  • Page 8: Component Placement - T611 Lower Compartment

    1-3. Component Placement – T611 Lower Compartment Drive board Transformer Optic sensor Motor Filter Incline VR set DC incline motor 1-3-3...

  • Page 9: Display Block Diagram - T611

    1-4. Display Block Diagram – T611 Telemetry Display receiver board board Safety key Bridge Key pad board Sensor L HTR board Sensor R Motor FUSE Filter Drive Optic sensor board Transformer Thermal sensor Inductor (220v) Incline motor Incline VR 1-4-1...

  • Page 10: Cable Connections - T611 Display Board

    1-5. Cable Connections – T611 Display Board To bridge board To telemetry heart rate receiver board To drive board To bridge safety key board To bridge board soft key 1-5-1...
  • Page 11 1-5. Connections-T611 Bridge Board To Display To HTR board To Safetykey board 1-5-2...

  • Page 12: Cable Connections - T611 Drive Board

    1-5. Cable Connections – T611 Drive Board M+,M- To motor To power supply AC1, AC2 To motor thermal sensor To transformer To display board To display board To VR set To incline motor To optic sensor 1-5-3...

  • Page 13: Led Indicators - T611 Display Board

    1-6. LED Indicators – T611 Display Board LED1 power indicator Lit indicates 5 VDC power supply. 1-6-1...

  • Page 14: Indicator Leds - T611 Drive Board

    1-6. Indicator LEDs – T611 Drive Board LED 4 M-Temp Lit indicates motor temperature is too hot. Transformer fuse LED 2 Lit indicates VCC power supply. LED6 INC-UP Lit indicates incline is LED 3 EMG operating upward. Lit indicates motor circuit error.

  • Page 15: Electronic Specifications - T611

    1-7. Electronic Specifications – T611 Details Notes Specification 110V / 220V Exterior power supply DC motor (with internal thermal switch) With brushes Motor With heat protection 3.0 Hp Optic sensor Infrared optic sensor KPH: 0.8 - 16.0(KPH) Speed range MPH: 0.5 –10.0(MPH)
  • Page 16 2-1. Electronic Malfunction Troubleshooting Table – T611 Malfunction Circumstance Inspection and test points Components to Notes replace Safety key Put safety key in place. 1. Inspect the cable connections on the lower part of the display Safety key board malfunction Display has no reaction.

  • Page 17: Electronic Malfunction Troubleshooting Table - T611

    2-1. Electronic Malfunction Troubleshooting Table – T611 Malfunction Circumstance Inspection and test points Components to Notes replace Incline Incline position on display 1. Inspect all cable connections. 1. VR position is differs from actual position. 2. Inspect drive board incline VR voltage across red and green 2.
  • Page 18 2-1. Electronic Malfunction Troubleshooting Table – T611 Malfunction Circumstance Inspection and test points Components to Notes replace ERR 7 ERR7 appears at startup. 1. Inspect the incline VR cable connection. 1.VR 2. Usually ERR7 indicates the display is stuck at either the highest 2.
  • Page 19 2-1. Electronic Malfunction Troubleshooting Table – T611 Malfunction Circumstance Inspection and test points Components to Notes replace Telemetry No heart rate reading, 1. This error statement appears when the display IC does not 1. Heart rate heart rate please check transmitter receive the HRC signal.

  • Page 20: Troubleshooting

    Troubleshooting Model: T611 Malfunction: Safety key malfunction Circumstance: Put the safety key in place. The display shows no reaction. “Safety key” appears. Possible cause: Safety key board malfunction Troubleshooting: 1. Inspect the safety key magnet. 2. Inspect bridge board connections.
  • Page 21 Troubleshooting Model: T611 Malfunction: No start up. Unit does not operate. Circumstance: Turn unit power on. The power indicator does not light. Possible cause: Incoming power supply or component malfunction. Troubleshooting: 1. Inspect the power cable connection. 2. Inspect cable connections under the motor cover.
  • Page 22 Troubleshooting Model: T611 Malfunction: No start up. Unit does not operate. LED1 power indicator Circumstance: Turn unit power on. The power indicator does not light. Lit indicates incoming 5V Possible cause: 1. AC power supply enters the drive board, goes through power supply.
  • Page 23 Troubleshooting Model: T611 Malfunction: Telemetry heart rate malfunction Circumstance: Telemetry heart rate malfunction Possible cause: 1. Transmitter battery voltage is too low. 2. Telemetry receiver board malfunction 3. Environmental interference, possibly from lights HR LED or speakers Troubleshooting: 1. Replace the transmitter strap or its batteries.
  • Page 24 Troubleshooting Model: T611 Malfunction: Key malfunction – soft keys Circumstance: Press display keys. Display shows no reaction, or keys operate continually. Possible cause: 1. Bridge board soft key connections are not connected properly. 2. Soft keys are bad. Troubleshooting: 1. Inspect bridge board soft key connections.
  • Page 25 Troubleshooting Model: T611 Malfunction: Incline does not operate up or down. Circumstance: Press incline keys. Incline does not operate up or down. Possible cause: 1. Cables are not connected properly. 2. Drive board or VR malfunction. Troubleshooting: 1. Inspect all cable connections.
  • Page 26 Troubleshooting Model: T611 Inspect the display cable connections and program Malfunction: Incline position malfunction Circumstance: The incline setting and actual incline position differ. Possible cause: 1. VR wear 2. Display board incline setting circuit malfunction Troubleshooting: 1. Inspect all cable connections.
  • Page 27 Troubleshooting Model: T611 Malfunction: HTR malfunction Circumstance: Contact heart rate (HTR) value malfunction Possible cause: 1. HTR cable malfunction 2. HTR board malfunction 3. Display cable connection malfunction Troubleshooting: 1. Inspect the display cable connections. HTR cable connection 2. Inspect bridge board HTR cable connections.
  • Page 28 Troubleshooting Model: T611 Malfunction: The fuse has broken. Circumstance: Turn on unit. The fuse immediately blows. Possible cause: 1. Components and the frame have an abnormal electrical short. 2. Drive board component malfunction Troubleshooting: 1. Inspect the power cord. Is the cord insulation broken and creating an electrical short? 2.
  • Page 29 Troubleshooting Model: T611 Malfunction: The fuse has broken. Circumstance: Press the speed key. Motor rotates. Fuse blows. Possible cause: 1. Motor has an abnormal, internal electrical short. 2. Drive board malfunction Troubleshooting: 1. Replace the drive board as a test.
  • Page 30 Troubleshooting Model: T611 Malfunction: The fuse has blown. Circumstance: After a period of use, the fuse suddenly breaks. Possible cause: 1. Fuse holder malfunction 2. Deck or belt wear 3. Drive board malfunction Troubleshooting: 1. Inspect the fuse and fuse holder installation.
  • Page 31 Troubleshooting Model: T611 Malfunction: Error 1 Malfunction: Press the speed key. Speed engages. Before the motor rotates, Error 1 appears. Possible cause: 1. Motor does not rotate. Drive board or motor malfunctions. Troubleshooting: 1. Inspect all cable connections. 2. Inspect the display board IC connection.
  • Page 32 Troubleshooting Model: T611 Inspect the display cable connections and the IC Malfunction: Err 1 connection. Circumstance: Press Speed key. Motor rotates. Err1 appears. Possible cause: 1. Motor rotates optic sensor malfunctions Troubleshooting: 1. Inspect all cable connections. 2. Inspect whether CLK indicator on drive board flashes.
  • Page 33 Troubleshooting Model: T611 Malfunction: Err 3 Circumstance: Display speed and actual speed differ. Possible cause: 1. Optic wheel teeth or optic sensor malfunction 2. Drive board malfunction Troubleshooting: 1. Inspect whether optic wheel teeth are missing. 2. Replace the optic sensor as a test.
  • Page 34 Troubleshooting Model: T611 Inspect the display cable connections and program Malfunction: Err 7 IC connections. Circumstance: Display shows ERR 7. Possible cause: 1. Drive board or VR malfunction made the incline stick at highest or lowest level. Troubleshooting: 1. Turn on unit power. Do not press any keys.
  • Page 35 Troubleshooting Model: T611 Malfunction: ERR 10 IGBT Circumstance: The walk belt suddenly rotates quickly. Possible cause: 1. Drive board IGBT has an electrical short. The protective circuit fails. 2. The protective circuit fails, prompting the error code. This cause is unlikely.
  • Page 36 Troubleshooting Model: T611 Malfunction: SERVICE REQUIRED TREADMILL SHUTTING DOWN STOPPING Circumstance: Display shows “SERVICE REQUIRED TREADMILL SHUTTING DOWN STOPPING”, the motor overheat error. Possible cause: 1. Motor is excessively hot; overheat protective circuit operates. Troubleshooting: 1. Inspect the motor thermal switch and fold-up switch cable connections.
  • Page 37 Other Topics Model: T611 Item: KPH/MPH unit selection, USER ID ON/OFF, total distance, total time, display board/drive board program versions Method: 1. Do not put the safety key in place. Press and hold the <CHANGE> key for three seconds to enter the basic parameter setting mode.
  • Page 38 Other Topics Model: T611 Item: Error Code Table : Display board main program has not received the optic sensor signal. : Display setting and actual speed differ. : The display detected that the incline VR voltage is too high or too low, indicating that the incline is stuck in the wrong position.
  • Page 39 Inspection and Measurement Inspection point: T611 optic wheel, optic sensor Inspection method: 1. Inspect the optic wheel placement. The optic wheel should rotate in the center of the optic sensor. It should not touch the optic sensor. 2. Inspect whether optic wheel teeth have broken.
  • Page 40 Inspection and Measurement Inspection point: T611 transformer Inspection method: 1. Inspect whether the transformer fuse has blown. 2. Measure transformer voltage. 3. Set the multi-meter to the AC setting. Place probes as follows: Transformer cables Voltage red-red or blue-blue (input...
  • Page 41 Inspecting and Measuring Inspection point: T611 motor brushes Inspection method: 1. Inspect motor brushes. A. Inspect brush length. If brushes are shorter than 0.7mm, replace the brushes. B. Inspect the brush surface. It should be smooth. If there are grooves, the commutator might be faulty.
  • Page 42 Inspection and Measurement Inspection point: T611 motor voltage test at the drive board Inspection method: 1. Select the VDC setting on the multi-meter. Place probes on M+M- connectors on the drive board. 2. Press the SPEED<▲> key. The motor should operate, allowing you to measure motor voltage.
  • Page 43 Inspection and Measurement Inspection point: T611 incline voltage measurement at the drive board Inspection method: 1. Do not press any key. Incline indicators do not light. The drive board does not emit voltage to the incline motor. The incline motor does not operate.
  • Page 44 Inspection and Measurement Inspection point: Measuring VR voltage on the drive board Inspection method: 1. Select the VDC setting on the multi-meter. Place probes on the VR set red-green wires. 2. If the VR voltage fluctuates widely, the VR is bad. Replace it. Incline key Drive board VR voltage Incline position...
  • Page 45 Inspection and Measurement Inspection point: Incline motor and VR calibration Inspection method: I. Calibration goals Adjust the incline set tube to the red calibration line. Adjust the VR voltage across red and green wires to 1.20V. II. Calibration steps: Step 1. Adjust the incline tube to the red calibration line as follows: A.

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