SportsArt Fitness XT20 Cross Trainer Repair Manual
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SportsArt Fitness XT20 Cross Trainer Repair Manual

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XT20 Cross Trainer Repair Manual
SPORTSART INDUSTRIAL CO., LTD.

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Questions and answers

Clark B Fetzer
January 18, 2025

How to fix a squeaky pedal crank axle

0
2 comments:
Erhat Harnstein
April 28, 2025

@Clark B Fetzer U most likely have a damaged ball bearing. Its easy to replace and worth it. but u need to take the Axle off which can be tough without proper tools. Kind Regards Erhat

1
bombardino crocodilo
April 29, 2025

@Clark B Fetzer Thanks

0
lois
July 24, 2025

Where do you plug in charger on the sports art XT20 when it won't continue to cycle (turns off). I have a charger, don't know where to plug in

0

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Summary of Contents for SportsArt Fitness XT20 Cross Trainer

  • Page 1 XT20 Cross Trainer Repair Manual SPORTSART INDUSTRIAL CO., LTD.

  • Page 2: Table Of Contents

    Contents 1. Component Recognition 1-1-1. XT20 Picture 1-2-1. XT20 Display 1-3-1. XT20 Lower Body (Rear) 1-3-2. XT20 Lower Body (Front) Note: XT10 and XT20 are mechanically and 1-4-1. XT20 Display electronically identical. The only difference is in 1-5-1. XT20 Display Board (Front) their displays.
  • Page 3 Contents 4. Block Diagrams 4-1-1. XT20 Display Board Wire Connection Block Diagram 4-1-2. XT20 Drive Board Wire Connection Block Diagram 5. Connections and Components on Boards 5-1. Display Board 5-1-1. XT20 Display Board Wire Connection Block Diagram 5-1-2. XT20 Display Board Component Placement 5-1-3.
  • Page 4 Contents 6. Error Messages 6-1-1. Unit Does Not Start when Keys Are Pressed. (Continued on 6-1-2.) 6-2-1. Move the Pedals or Arms; The Display Does Not Light. (Continued on 6-2-2.) 6-3-1. Move the Pedals or Arms; The Display Leg or Arm RPM Window Shows 0. (Cont. 6-3-2.) 6-4-1.

  • Page 5: Xt20 Picture

    XT20 Picture 1-1-1...

  • Page 6: Xt20 Display

    XT20 Display 1-2-1...

  • Page 7: Xt20 Lower Body (Rear)

    XT20 Lower Body (Rear) Electro- magnet Drive board Flywheel alternator Reed switch and magnet 1-3-1...

  • Page 8: Xt20 Lower Body (Front)

    XT20 Lower Body (Front) Reed switch AC alternator Flywheel Battery Electro- magnet 1-3-2...

  • Page 9: Xt20 Display

    XT20 Display 1-4-1...

  • Page 10: Xt20 Display Board (Front)

    XT20 Display Board (Front) 1-5-1...

  • Page 11: Xt20 Display Board (Back)

    XT20 Display Board (Back) 1-5-2...

  • Page 12: Xt20 Specification Table

    XT20 Specification Table Function Specifics Model Telemetry heart rate Heart rate 65% HR target XT20 80% HR target Moving prompts or illustrations Main window XT20 Dot matrix 5*5*8 LED two-color dot matrix (red/green) Work Lever（LEG）/ Work Lever（ARM） Mode window XT20 CALORIES / CAL / HR / DISTANCEMETS / WATTS LEG RPM / TIME / ARM RPM MANUAL / RANDOM / CARDIO / WT LOSS /...

  • Page 13: Xt20 Display Window Functions

    XT20 Display Window Functions Heart rate Shows 65% HR target Main window Shows actual heart rate Shows prompts and Shows 80% HR target illustrations Leg work level Arm work level Shows leg resistance Shows arm resistance level value level Calorie METS Shows calorie burn Shows METS and...

  • Page 14: Xt20 Display Key Functions

    XT20 Display Key Functions ＜MANUAL＞ Keys directly determine settings ＜RANDOM＞ Automatic random resistance ARM WORK LEVEL＜▲＞/＜▼＞ changes Set ARM resistance level ＜CARDIO/WT LOSS＞ Automatic control according to heart rate setting ＜CONDITIONING＞ Automatic physical conditioning program (1) ＜ADVANCED CONDITIONING＞ Automatic physical conditioning program (2) ＜START＞...

  • Page 15: Battery Start Up

    1. Battery Start Up Function: 1. Use battery power to activate the unit. Operation: 1. Press <START>. The display shows “XT20” and starts operating as shown below. 3-1-1...

  • Page 16: Alternator Start Up

    2. Alternator Start Up Function: 1. Use power from the alternator to activate the unit. Operation: 1. Move the pedals or handles. The display shows “XT20” and starts operating as shown below. Left Picture Right Picture 3-1-2...

  • Page 17: Quick Start Mode

    3. Quick Start Mode Function: 1. Start exercising without inputting personal settings. Operation: 1. To start exercising, press <QUICK START> after the display shows “XT20”. The display will appear as shown below on the left. 2. Move the pedals or handles. Time accumulates from 0:00. 3.

  • Page 18: Operating From Quick Start Mode

    4. Operating from Quick Start Mode Function: 1. Exercise from QUICK START in manual mode Operation: 1. The default settings in this exercise mode follow: age is 35; weight is 75Kg/165Lb; arm resistance is 3; leg resistance is 5. 2. The course is represented by an oval track. Green dots represent area yet to cover; orange represents current location;...

  • Page 19: Leg/Arm Work Level Setting

    5. LEG/ARM Work Level Setting Function: 1. Set LEG/ARM resistance level. Operation: 1. Press the LEG/ARM Work Level ▼/▲ key on the display or press the ┼/— key on the handle to change LEG and ARM resistance settings. Left: display keys. Right: handle keys. 2.

  • Page 20: Start Mode

    6. Start Mode Function: 1. Exercise using user personal information for more accurate physical feedback readings. Operation: 1. Press <START> after the display shows “XT20” to input user information. The display appears as shown on the left. 2. To enter age and weight, press ▲\▼ keys or numbers on the bottom of the display. Press <ENTER>...

  • Page 21: Operate Programs

    7. Operate Programs Function: 1. Operate automatic programs. Operation: 1. After entering age and weight information, all program LEDs light as shown on the left. 2. Press any key (MANUAL、RANDOM、CARDIO/WT LOSS、CONDITIONING、ADVANCED CONDITIONING) as shown on the right to activate the related program. 3.

  • Page 22: Operating Programs (Cont.)

    8. Operating Programs (Cont.) Function: 1. Other program operation. Operation: 1. After entering a program (MANUAL、RANDOM、CARDIO/WT LOSS), press ▲\▼ keys on the display or handles to enter the time, then press <ENTER> to confirm your choice. 2. In CONDITIONING and ADVANCED CONDITIONING modes, press these keys again to toggle between four options, P1~P4.

  • Page 23: Stopping Programs

    9. Stopping Programs Function: 1. Program mode values and prompts. Operation: 1. In program modes, press <STOP> to halt the program. The display appears as shown on the left. 2. After stopping, the display shows total distance, calorie expenditure, and time. See right. 3.

  • Page 24: Battery Shut Off

    10. Battery Shut Off Function: 1. Automatically turn off the unit after exercising. Operation: 1. Simultaneously press <ENTER>+LEG Work Level <▼> to turn off the display. The battery circuit is disengaged, and the display shuts off as shown on the right. Picture Left Picture Right 3-1-10...
  • Page 25 11. Power Save Mode Function: 1. Start the power saving mode. Operation: 1. When there is no movement signal detected for over 30 seconds, the display automatically shuts off and a “bouncing ball” pattern appears. 2. Press <START> or move the pedals or handles to resume exercising. The display shows the previous screen as shown on the right.

  • Page 26: Show Total Distance

    12. Show Total Distance Function: 1. See total distance. Operation: 1. Simultaneously press <STOP/REST>+<ENTER>+<DISPLAY Lock> keys. The display appears as shown. K: KPH M: MPH Program nationality Total distance 3-1-12...

  • Page 27: Set Kph/Mph Mode

    13. Set KPH/MPH Mode Function: 1. Set unit operation in KPH or MPH mode. Operation: 1. At the startup screen, simultaneously press LEG Work Level <▼/▲> keys to enter the MODIFY setting. 2. Then press<▼/▲> to toggle to YES. Press <ENTER> to confirm your choice. See picture on left. 3.

  • Page 28: Xt20 Display Board Wire Connection Block Diagram

    XT20 Display Board Wire Connection Block Diagram Polar Board C-Safe Board Display Board Drive Board 4-1-1...

  • Page 29: Xt20 Drive Board Wire Connection Block Diagram

    XT20 Drive Board Wire Connection Block Diagram 控制板 Display Board 手部 腳部 Electro- 電磁鐵 電磁鐵 Electro- Magnet Magnet 磁簧感應線 磁簧感應線 Reed Switch Reed Switch 發電機 發電機 Alternator Alternator 驅動板 Drive Board 紅外線按 Battery 充電器 Infrared 鍵小板 Charger Key Board Handle 蓄電池...

  • Page 30: Xt20 Display Board Wire Connection Block Diagram

    XT20 Display Board Wire Connection Block Diagram Polar Board C-Safe Board Display Board Drive Board 5-1-1...

  • Page 31: Xt20 Display Board Component Placement

    XT20 Display Board Component Placement 5-1-2...

  • Page 32: Xt20 Display Board Led Indicators

    XT20 Display Board LED Indicators POWER1 LED Lit=5V power supply LED1 C-SAFE Indicator Lit=C-SAFE operation 5-1-3...

  • Page 33: Xt20 Display Board Wire Connectors

    XT20 Display Board Wire Connectors CON1 To drive board CON4 To C-SAFE board CON2 To POLAR receiver board 5-1-4...

  • Page 34: Drive Board

    XT20 Drive Board Wire Connection Block Diagram 控制板 Display Board 手部 腳部 Electro- 電磁鐵 電磁鐵 Electro- Magnet Magnet 磁簧感應線 磁簧感應線 Reed Switch Reed Switch 發電機 發電機 Alternator Alternator 驅動板 Drive Board 紅外線按 Battery 充電器 Infrared 鍵小板 Charger Key Board Handle 蓄電池...

  • Page 35: Xt20 Drive Board Component Placement

    XT20 Drive Board Component Placement 5-2-2...

  • Page 36: Xt20 Drive Board Led Indicator Placement And Definitions

    XT20 Drive Board LED Indicator Placement and Definitions LED2 ARM_CLK Flashing or becoming lit indicates detection of ARM reed switch signal. LED1 LEG_CLK Flashing or becoming lit indicates detection of LEG reed switch signal. 5-2-3...

  • Page 37: Xt20 Drive Board Wire Connectors

    XT20 Drive Board Wire Connectors To reed switch, electro-magnet, To display alternator (arm) board To battery charger J3/J7 To reed switch, electro-magnet, To battery J3, To right handle keys alternator (leg) J7, To left handle keys 5-2-4...

  • Page 38: Xt20 Drive Board Fuse Locations

    XT20 Drive Board Fuse Locations F1 3A Alternator fuse F2 2A Battery fuse F3 2A Battery charger fuse 5-2-5...
  • Page 39 XT20 Error Messages: Unit does not start when keys are pressed. 1. Explanation: 1. Press <START> or <Quick START> keys on the display. The display does not light. 2. Block diagram: Display Board 按STAR T Keypad Start 控制板 Keypad 或Q UI CK STAR T Power LED Quick Start 開機電壓...
  • Page 40 3. Circumstance of Malfunction: 1. Display does not light up. 4. Possible Causes: 1. Battery is bad. 2. Drive board is bad. 3. Display board is bad. 4. Data cable is bad. 5. Parts to Inspect: Order Part Inspection Procedure 1.
  • Page 41 XT20 Error Message: Move the pedals or arms. The display does not light. 1. Explanation: 1. When pedals or arms move, the alternator power goes to the drive board; the display detects the reed switch signal, and the display lights up. 2.
  • Page 42 3. Circumstance of Malfunction: 1. Move the pedals or arms; the display does not light up. 4. Possible Causes: 1. Reed switch malfunction 2. Drive board malfunction 3. Display board malfunction 4. Break in the data cable 5. Alternator malfunction 5.
  • Page 43 XT20 Error Message: Move the pedals or arms; the display leg or arm RPM window shows 0. 1. Explanation: 1. The display board CPU reads the reed switch signal and displays values in the leg and arm RPM windows. 2. If the display cannot read the reed switch signal, RPM values cannot be shown. 2.
  • Page 44 3. Circumstance of Malfunction: 1. Move the pedals or arms; the display does not show leg and arm RPM speed in respective windows. 4. Possible Causes: 1. Reed switch or reed switch wire malfunction 2. Drive board malfunction 3. Display board malfunction 4.
  • Page 45 XT20 Error Message: There is no resistance on arms or legs. 1. Explanation: 1. The reed switch CLK signal does not reach the display CPU. The unit does not start. There is no resistance. 2. The display has not sent the resistance signal to the drive board. The drive board has not sent voltage to the electro-magnet, so there is no resistance.

  • Page 46: There Is No Resistance On Arms Or Legs. (Continued On 6-4-2.)

    3. Circumstance of Malfunction: 1. There is no resistance on legs or arms. 4. Possible Causes: 1. Reed switch or wire malfunction 2. Drive board malfunction 3. Display board malfunction 4. Cable malfunction 5. Electro-magnet malfunction 6. Alternator malfunction 5. Parts to Inspect: Order Part Inspection Procedure...
  • Page 47 XT20 Error Message: Remote Key Malfunction 1. Explanation: 1. When the unit is on, the user presses remote keys, but there is no response from the display. 2. Block Diagram: Display 控 制 板 Board 左 手 左 手 Left Right Remote Remote...
  • Page 48 3. Circumstance of Malfunction: 1. When the display is lit, the user presses remote keys, but the display does not respond. 4. Possible Causes: 1. Remote keys 2. Infrared transmitter 3. Infrared receiver 4. Drive board malfunction 5. Display board malfunction 6.
  • Page 49 XT20 Error Messages: The battery does not recharge. 1. Explanation: 1. At a speed of 40 RPM or higher, the drive board emits power to replenish the battery. 2. The drive board does not send voltage to the battery; the battery does not recharge. 2.
  • Page 50 3. Circumstance of Malfunction: 1. The alternator does not provide AC power to the rectifier board. 2. The drive board does not provide DC voltage to recharge the battery. 4. Possible Causes: 1. Alternator malfunction 2. Drive board malfunction 3. Battery malfunction 4.
  • Page 51 XT20 Error Message: POLAR heart rate malfunction 1. Circumstance of Malfunction: 1. There is no POLAR heart rate value on the display. 2. The POLAR heart rate value is not accurate. 2. Block Diagram: Heart Heart Rate Rate Signal Signal Heart Rate Heart Rate Display Board...
  • Page 52 3. Possible Causes: 1. POLAR heart rate transmitter malfunction 2. POLAR heart rate receiver malfunction; receiver does not detect transmitter signal. 3. POLAR heart rate receiver interference 4. POLAR heart rate 3-PIN cable is not connected. 5. Display malfunction: CPU does not detect the POLAR heart rate signal. 4.

  • Page 53: Xt20 Alternator Test (Continued On 7-1-2.)

    XT20 Alternator Test 1. Alternator test configuration: 7-1-1...
  • Page 54 2. Test Procedure: 2-1. Put voltmeter to the 200 VAC setting. Inspect any two wires from the alternator for voltage as shown. 2-2. When the arms or legs are moving, voltmeter shows voltage; the faster the movement, the greater the voltage. 3.

  • Page 55: Xt20 Battery Voltage Test

    XT20 Battery Voltage Test 1. Test Configuration: 2. Test Procedure: 2-1. Put voltmeter to the 20 VDC setting. 2-3. Place probes as shown, with the red on the red terminal, the black on the black terminal. 2-4. Normal voltage: 5.6 ~6.5 VDC. If lower than 5.5 VDC, please move the pedals or arms swiftly to recharge the battery.

  • Page 56: Xt20 Electro-Magnet Test

    XT20 Electro-Magnet Test 1. Test Configuration: 2. Test Procedure: 2-1. Disconnect the CN2 wire connection from the drive board. 2-2. Put the voltmeter to the ohm setting. Place probes as shown on the two, blue wires of the magnet. 2-3. Normal ohm specification: 20. 2-4.

  • Page 57: Xt20 Reed Switch Test (Continued On 7-4-2.)

    XT20 Reed Switch Test 1. Test Configuration: Left Picture Right Picture LED1、LED2 2. Test Procedure A. Arm RPM 1. Press the＜START＞key. The display lights up. 2. Move the arms. The drive board CLK LED flashes. Display shows＜ARM RPM＞value. 3. Move the arms once per second. The display＜ARM RPM＞window shows 60 RPM. 7-4-1...
  • Page 58 XT20 Reed Switch Test 2. Test Procedure: B. Leg RPM 1. Press the＜START＞key. The display lights up. 2. Move the pedals. Drive board CLK LED flashes. Display shows the＜LEG RPM＞value. 3. Move the arms once per second. The display ＜LEG RPM＞window shows 60 RPM. 3.

  • Page 59: Xt20 Alternator Power Test At The Drive Board (Continued On 7-5-2.)

    XT20 Alternator Power Test at the Drive Board 1. Test Configuration: 7-5-1...
  • Page 60 2. Test Procedure: 2-1. Put voltmeter to the 200 VDC setting. Place probes on the drive board TP1-TP2 connectors as shown. 2-2. Move either pedals or arms. Normal voltage: 10-150 VDC or more. 2-3. If not as above, the alternator is bad. 3.

  • Page 61: Xt20 Battery Test At The Drive Board (Continued On 7-6-2.)

    XT20 Battery Test at the Drive Board 1. Test Configuration: 7-6-1...
  • Page 62 2. Test Procedure: 2-1. Put voltmeter to the 20 VDC setting. Place probes separately on J1 red and black terminals. Normal reading: 6 volts. 2-2. If less than 5.5 VDC, recharge the battery. 5.3 VDC is the lowest voltage at which the display can operate.

  • Page 63: Xt20 Resistance Voltage Test At The Drive Board (Continued Through 7-7-3.)

    XT20 Resistance Voltage Test at the Drive Board 1. Test Configuration - ARM Resistance Voltage Test 7-7-1...
  • Page 64 Test Configuration - LEG Resistance Voltage Test 7-7-2...
  • Page 65 2. Test Procedure ARM Resistance Voltage Test (1) Put voltmeter to the 20 VDC setting. Place probes on J5 blue-blue wire connectors. Move arms. (2) Press ARM LEVEL<▲> key until the display shows resistance level 20. Arm resistance is highest. Normal voltage reading: 10 VDC approximately.

  • Page 66: Xt20 Vcc Voltage Test At The Drive Board (Continued On 7-8-2.)

    XT20 VCC Voltage Test at the Drive Board 1. Test Configuration: Normal reading: 5 VDC. 7-8-1...
  • Page 67 2. Test Procedure: 2-1. Put voltmeter to the 20 VDC setting. Place probes on the drive board J2 pin1-pin18 terminals as shown. This is the VCC circuit. 2-2. Exercise on the unit or press the <START> or <QUICK START> key on the display. The display should beep once and light.

  • Page 68: Xt20 Vcc Voltage Test At The Display Board (Continued On 7-9-2.)

    XT20 VCC Voltage Test at the Display Board 1. Test Configuration: Capacitor C10 7-9-1...
  • Page 69 2. Test Procedure: 2-1. Put voltmeter to the 20 VDC setting. Place probes on C10 pins as shown. 2-2. Exercise on the unit or press the <START> key. The display should beep once; the POWER1 LED should light; and all windows should light. 2-3.

  • Page 70: Xt20 Display Board Key Test

    XT20 Display Board Key Test 1. Test Procedure 1-1. Test for continuity (1) Put voltmeter to the ohm setting. Place probes on the two terminals on the right or left side as shown. (2) Press on the key. Voltmeter should show 0Ω. (3) If the display shows no reaction, the key is broken.

  • Page 71: Xt20 Arm Remote Key Test (Continued On 7-11-2.)

    XT20 Arm Remote Key Test (Infrared) 1. Test Configuration: 1. Key circuit board 3. Infrared receiver 2. Infrared transmitter 7-11-1...
  • Page 72 2. Test Procedure: 1. Left remote test (leg) (1) Set display to MAN’L mode. (2) Use the left remote to set the leg resistance. Resistance values in the display LEG WORK window change accordingly. (3) LEVEL range: 1-20. 2. Right remote test (arm) (1) Set display to MAN’L mode.

  • Page 73: Xt20 Polar Heart Rate Test (Continued On 7-12-2.)

    XT20 Polar Heart Rate Test 1. Test Configuration: Target heart rate windows Actual heart rate display Polar transmitter 7-12-1...
  • Page 74 2. Test Procedure: 1. Static test (1) Put on the POLAR heart rate transmitter. (2) Sit with the transmitter within 80 cm of the display. (3) Press QUICK START. (4) Within five seconds, the display should show the heart rate reading. If there is no heart rate reading, the transmitter or receiver is malfunctioning.
  • Page 75 Addendum: XT20 Drive Board Overview DRIVE BOARD OVERVIEW DISPLAY ALTERNATOR (ARM) DRIVE BOARD LED1 ELECTRO-MAGNET LED2 (ARM) DRIVE BOARD FUSES: F1 ALTERNATOR FUSE 3A REED SWITCH (ARM) REMOTE (ARM) F2 BATTERY FUSE 2A BATTERY: F3 BATTERY CHARGER FUSE 2A FUSE REMOTE (LEG) 6 VDC DRIVE BOARD LEDS:...
  • Page 76 Addendum: Voltage Specifications RESISTANCE LEGS RESISTANCE ARMS (BLUE/BLUE) (BLUE/BLUE) LEVEL RPM VOLTAGE LEVEL RPM VOLTAGE 2.75 VDC 1.3 VDC 5.85 VDC 4.5 VDC 13.5 VDC 5.2 VDC 15.5 VDC 6.9 VDC ALTERNATOR LEGS ALTERNATOR ARMS (BLACK/WHITE) (BLACK/WHITE) RPM VOLTAGE AC VOLTAGE AC 13 VAC 22 VAC...

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