Xterra ET94 Service Manual
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Xterra ET94 Service Manual

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Summary of Contents for Xterra ET94

  • Page 2 WARNING: ALWAYS UNPLUG THE TREADMILL FROM THE ELECTRICAL OUTLET BEFORE SERVICING THE UNIT.

  • Page 3: Table Of Contents

    TABLE OF FIGURES Figure 1 Operational Flowchart ..........6 Figure 2 Console Layout............23 Figure 3 Mechanical Layout ..........23 Figure 4 Main Controller information & voltages....24 Figure 5 Function JK1 connector on Main Controller... 24 Figure 6 Wiring Diagram............25 Figure 7 Schematic Diagram ..........
  • Page 4 DESCRIPTION LECTRICAL ONFIGURATION Note: Electrical servicing of this treadmill is limited to board level replacement. 1612275 TREADMILL COMPONENTS Safety key: To fits on the Console that activate all functions. If no safety key, console can not be controlled. Console: Interface that controls all functions of the treadmill. Main controller: The circuit board consist of the DC power supply and takes input from the console and output appropriate voltages that...
  • Page 5 General Information CONSOLE Contains touch controls of buttons and LCD Display. MAIN CONTROLLER Include power supply motor driver control circuit and incline 、 control circuit. TREADMILL MOTOR It’s a variable speed on 0-90 volt DC motor. Have three wires red, black and green. If there is positive of DC voltage on the Red wire (M+) the treadmill motor will turn clockwise.

  • Page 6: Figure 1 Operational Flowchart

    Figure 1 Operational Flowchart...
  • Page 7 OPERATION INDOW ISPLAY OFF MODE When user doesn’t insert the SAFETY KEY on the console, the treadmill enters the OFF Mode and all windows will appear blank. READY MODE When the treadmill is ON and SAFETY KEY is inserted in console, the message window will show “SELECT A PROGRAM OR PRESS START TO BEGIN WORKOUT”...
  • Page 8 UNCTION SPEED Display the current speed in Mile per hour. DISPLAY range is 0.0 to 99.9 MPH. WORK range is 0.5 to 12.0 M. Press “FAST” or ”SLOW” to adjust speed, each increment and decrement is 0.1 M. INCLINE Display the incline position from 0 to 15. DISPLAY range is 0 to 99.
  • Page 9 PROGRAM / LAPS Display the total working lap quantity on LAPS window. PROGRAM state display in Dot Matrix window, have speed and incline profile. Pressing “SELECT” button will toggle between them. DISPLAY range is 0 to 99. WORK range is 0 to 99. Displays total lap quantity.
  • Page 10 UNCTION UTTON READY MODE SAFETY KEY: Put safety key in position to power on the computer. When safety key is pulled away from its position, the computer will be automatically shut down. STOP button: Non-function. START button: Pressing “ START ” button to start treadmill, START ”...
  • Page 11 m) Disable button: To turn on or turn off “FAST S LOW” or 、 “U D OWN” buttons control function on the handlebar at the P 、 same time. RUN MODE a) SAFETY KEY: When safety key is pulled away from its position, the computer will be automatically shut down.
  • Page 12 ALIBRATION ROCEDURE CALIBRATION Turn on power. “START” and “FAST” button at the same time. Press and hold Inserts the SAFETY KEY on console, all windows will appear blank. Km/Mile Mode: Press “STOP” button to exchange to Mile Mode (English) in SPEED window and the value is M. Set wheel size: Press “FAST”...

  • Page 13: Troubleshooting

    TROUBLESHOOTING WARNING: ALWAYS UNPLUG THE TREADMILL FROM THE ELECTRICAL OUTLET BEFORE SERVICING THE UNIT. GENERAL Do a visual check of all wiring and connections looking for chafed wires or lose connections. Make sure any wiring is safely positioned and/or secured away from moving parts.
  • Page 14 TROUBLESHOOTING MATRIX Condition Reason Solve When turn on power, 1. Power cord isn’t plugged into outlet. 1. Plug the power cord into outlet. ON/OFF switch isn’t lit. 2. Power cord isn’t plug into unit. 2. Plug the power cord into unit. 3.
  • Page 15 4. Replace 12PIN computer cable. 5. Fuse on controller is blown. 5. Replace fuse or controller. 6. Varistor on controller is blown. 6. Replace varistor or controller. 7. Reed switch of console is broken. (open) 7. Replace reed switch or console. 8.
  • Page 16 treadmill can’t stop. LCD not bright, incomplete 1. LCD light is broken. 1. Replace with new LCD or console. or imperfect. 2. Power to console too low. 2. Check AC power is 110-120V. 3. Check power to console. 4. Replace lower controller. LCD displays not bright, 1.
  • Page 17 voltage between black and white wires of the 6. 12 PIN computer cable connected improperly. sensor. DC voltage requires over 4 , *Speed sensor cable was When the magnet is too far away, there is broken,(open) console can’t 7. 12 PIN computer cable is broken. no output voltage.
  • Page 18 “E2” during training. 1. Check the 3 pins cable of the incline motor. 1. Position sensor value of incline motor is wrong. INCLINE window displays “----”. TIME window display 1. EEPROM is broken. 1. Replace with new console and calibrate it. “Err”...
  • Page 19 3 The connector of SPEED CABLE (UPPER) or 3. Connect cable again. SPEED ADJUSTMENT SWITCH/W/CABLE is damaged. Speed button just can press 4. Button of SPEED ADJUSTMENT SWITCH is broken. 4. Replace with new buttons. FAST, can’t press SLOW. 5. The connector of SPEED CABLE (UPPER) or SPEED ADJUSTMENT SWITCH/W/CABLE is damaged.
  • Page 20 damaged. Hand pulse lost its function. 1. Hands not on the hand pulse sensors or only one hand on 1. Two hands hold the hand pulse. (No pulse displayed on sensor. monitor) 2. The connector of HANDPULSE W/WIRE and Console 2.
  • Page 21 under treadmill. Noise under motor cover. 1. Worn brushes or bearings on motor. 1. Replace with new motor. 2. Front roller bearings are defective. 2. Replace with new front roller. 3. Drive belt is misadjusted (too tight or too loose). 3.
  • Page 22 CONTROLLER DEBUGGING FORM Indicator LED Function Condition Reason Solve Motor speed Normal on when start is pressed. Console have not send Check computer cable of 12PIN connector. Fault condition is start be pressed & signal to controller. Replace set-up. LED off. POWER Controller power If DC voltage is normal, it would be...

  • Page 23: Figure 2 Console Layout

    DIAGRAMS AND SCHEMATICS Figure 2 Console Layout Figure 3 Mechanical Layout...

  • Page 24: Figure 4 Main Controller Information & Voltages

    Figure 4 Main Controller information & voltages Figure 5 Function JK1 connector on Main Controller...

  • Page 25: Figure 6 Wiring Diagram

    Figure 6 Wiring Diagram...

  • Page 26: Figure 8 If Treadbelt Slips

    APPENDIX A TREADBELT ADJUSTMENT The treadbelt has been factory pre-adjusted, however if during the operation: 1/4 T U R N Figure 8 If Treadbelt slips The treadbelt is too loose: Tighten both rear roller adjusting bolts 1/4 turn clockwise using allen wrench 1/4 TURN Figure 9 If tread belt shifts too far to the Right a) Set the treadmill speed to 3.5 mph/5.6 km.

  • Page 27: Figure 10 If Tread Belt Shifts Too Far To The Left

    1/4 TUR N Figure 10 If tread belt shifts too far to the Left a) Set the treadmill speed to 3.5 mph/5.6 km. b) Tighten the left adjusting bolt a 1/4 turn clockwise using allen wrench c) Wait 15 seconds: if no change; turn the right adjusting bolt a 1/4 turn counter-clockwise using allen wrench d) Repeat steps b and c until belt is centered IMPORTANT...
  • Page 28 APPENDIX B TREADMILL LUBRICATION Your treadmill should require little maintenance other then periodically applying lubricant. Lubricating under the treadbelt will ensure superior performance and extend its life expectancy. HOW TO CHECK TREADBELT FOR PROPER LUBRICATION Lift one side of the treadbelt and feel the top surface of the treadboard If the surface is (slick) to the touch, then no further lubrication is required If the surface is dry to the touch, apply one packet of lubricant HOW TO APPLY LUBRICANT...

  • Page 29: Figure 11 Resetting Reset Switch

    APPENDIX C Tripped Normal Figure 11 Resetting Reset switch RESET SWITCH RESETTING If the red button of reset switch is tripped, it will protrude out from the face of the switch. Press in the red button of the switch. If the red button of reset switch is not tripped, that means normal.

  • Page 30: Figure 12 Fuse Replacement

    APPENDIX D Figure 12 Fuse replacement FUSE REPLACEMENT If your treadmill loses power or will not start, check the fuse located on the motor controller. DANGER: Turn the power switch off and unplug the treadmill to reduce the risk of an electric shock Remove the motor cover Remove and replace the fuse on the motor controller Replace the motor cover...
  • Page 31 APPENDIX E SPEED SENSOR ADJUSTMENT If the monitor does not display speed or distance the speed sensor and magnet may be misaligned. Follow these steps to check and realign. Remove the motor cover Check the spacing and alignment between the magnet on the right side of the front roller and the speed sensor on the frame.

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