xt20_repair_manual
Contents
1. DISTAIRC TS s CAL a 5 CALORIES DISTANCE 5 g b CAL Hr T CONDITIONING RPM TIME ARM Ver Level 3 1 4 Fissi LE Haeo SportsArt TNESS 5 LEG ARM Work Level Setting Function 1 Set LEG ARM resistance level Operation 1 Press the LEG ARM Work Level v 4 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 Left handle keys set leg resistance Right handle keys set arm resistance Resistance setting range 1 20 Left Picture Right Picture WEIGHT P x ARM Work Level 3 1 5 SportsArt TNESS 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 4v keys or numbers on the bottom of the display Press ENTER to confirm your choice as shown below on the right After pressing ENTER the display automatically calculates calorie burn etc according to your information eft Picture Hight Picture i VT i ATO Eu presi wm asiar RANDO a CONDITION ADVANCED CONDITIOHIS t 4 i CONDITIONING LEG Work Level j ARI LEG Work Level Strength amp Cardio2. E 4 a n a 2k a Ta TIMES L n ey 1214 Lek C tra Dr ae iira Waqar pre Mngr Eitsa WATERS XM a Ata a i 4 IM d d H 1 5 1 Sports ltt XT20 Display Board Back j Li TRES LA L La NL Wa BN wr ir 27 fe W i dl ni p 7 ul I LI CRCR RIE 181 iz le ME ul L ubi ij 7 m Hj ti Ai 1 ai n a ii LLL SportsArt TNESS XT20 Specification Table Telemetry heart rate Heart rate 65 HR target XT20 80 HR target Moving prompts or illustrations Mainwindow matrix 5 5 8 LED two color dot matrix red green a Work Lever LEG Work Lever ARM Mode window CALORIES CAL HR DISTANCEMETS WATTS XT20 LEG RPM TIME ARM RPM MANUAL RANDOM CARDIO WT LOSS TE 9 CONDITONING ADVANCED CONDITONING Heart rate detection POLAR wireless telemetry heart rate XT20 Work level LEG 1 20 Work level XT20 Work level ARM 1 20 Power Hand leg independent power generation XT20 Backup Power Rechargeable battery hand leg independent batteries XT20 Resistance Leg electro magnetic belt drive XT20 Arm electro magnetic chain drive Adjustable back Rechargeable battery 6 4 V TES Alternator AC brushless Resistance voltage arm 2 0 1
3. SportsArt n s lt XT20 Cross Trainer Repair Manual SPORTSART INDUSTRIAL CO LTD SportsArt TNESS Contents 1 Component Recognition 1 1 1 XT20 Picture 1 2 1 X120 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 The residential model XT10 has 1 5 2 XT20 Display Board Back user programs The commercial model XT20 does not have user programs For general troubleshooting this manual applies to XT10 and XT20 2 XT20 Functions 2 1 1 XT20 Specification Table 2 2 1 XT20 Display Window Functions 2 3 1 XT20 Display Key Functions Manual updates follow 3 XT20 Operation Version 1 12 07 05 Initial version 1 Battery Start Up Version 2 02 01 06 Note below added 2 Alternator Start Up 3 Quick Start Mode Note The cover picture shows a prototype with 4 Operating from Quick Start Mode handles like the C5150 bike Production units 5 LEG ARM Work Level Setting of XT10 and XT20 never had such handles 6 Start Mode 7 Operate Programs 8 Operating Programs Cont 9 1 1 1 For comments or suggestions please contact Stopping Programs bob sportsartamerica com 0 Battery Shut Off 2 Show Total Distance 3 Set KPH MPH Mode 0 0 1 SportsArt TNESS Contents 4 Block Diagrams 4 1 1 XT20 Display Board Wi
4. 2 0 VDC approximately LEG Resistance Voltage Test 1 Put voltmeter to the 20 VDC setting Place probes on J6 blue blue wire connectors Move arms 2 Press LEG LEVEL lt A gt key until the display shows resistance level 20 Leg resistance is highest Normal voltage reading 17 2 VDC approximately 3 Press LEG LEVEL V gt key until the display shows resistance level 1 Leg resistance is lowest Normal voltage reading 2 7 VDC approximately 3 Troubleshooting 1 If there is no voltage the drive board is not emitting voltage for resistance Inspect A Cable connections B Alternator C Alternator fuse on the drive board D Drive board E Display board 7 7 3 Spor ts Art FITNESS XT20 VCC Voltage Test at the Drive Board 1 Test Configuration Normal reading 5 VDC LE 4253 AY YA TT Y EL 7 8 1 SportsArt TNESS 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 2 3 Normal reading 4 8 5 2 VDC approximately 3 Troubleshooting 3 1 If the display does not light 1 Inspect cable connections 2 Inspect fuses on the drive board Replace if necessary 8 2 SportsArt TNESS XT20 VCC Voltage Test at i the Di 1 Test Configuration ang p L
5. 3 Inspect alternator for damage 5 2 SportsArt TNESS XT20 Battery Test at the Drive Board 1 Test Configuration 7 6 1 SportsArt TNESS 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 2 3 To recharge the battery exercise at 40 RPM or more for 20 minutes or more 2 4 f the battery has less than 3 VDC replace it 3 Troubleshooting 3 1 If battery voltage is less than 5 5 VDC recharge the battery as follows A Exercise Exercise at more than 40 RPM for 20 minutes or more to recharge the battery B Battery charger Connect the XT 20 battery charger 7 6 2 SportsArt TNESS XT20 Resistance Voltage Test at the Drive Board 1 Test Configuration ARM Resistance Voltage Test 7 7 1 SportsArt TNESS Test Configuration LEG Resistance Voltage Test 7 7 2 SportsArt TNESS 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 lt A gt key until the display shows resistance level 20 Arm resistance is highest Normal voltage reading 10 VDC approximately 3 Press ARM LEVEL lt V gt key until the display shows resistance level 1 Arm resistance is lowest Normal voltage reading
6. TNESS XT20 Display Pasrsonalc PESTE with Ta START MOLA re ape d asl pedaling ne mecs wer boy arm Preti CLI START START nier Programs ITEM 6 Enter Vie ghi e T h a i Prragrari TER a Bra select Time CALORIE DISTANCE C ARI n Alt Lo ALTARI 12 LEG Work Level L Th maet Pa ph Tira mn a COMMENTI Progr PI trat Fi lg COTH T K MQM Fee as Mi Fie FI bg 1 4 1 SportsArt TNESS XT20 Display Board Front Gag eae Sortie he XF ah BRR RF R M E KA RW D TI H RT N MH RIRAN K A RR KR AK KUKA R li H M MR E HH NI R N RN K RH E H Y RK bb EI IE dI E F QL REH NH REN KS N T H K K O OE N M al E HH HE HB M JS i ants RAT aie q fme bail eee es nM pu reais JOE 198 Kato i mmi LLLI Ni LM A nanna ATEM 3 y H oe ited fr ch gt L4 di ad Qu D 3 a 2 A E sali BI k h Tu 1 3 4 k dedil PUMP POPE Ded odo kiwa Leere Pei Vul ci TASSI oa p ma 4 i ED r
7. lt START gt start by inputting personal information lt QUICK START gt start without inputting personal information lt ENTER gt confirm your selection lt STOP RESET gt gt stop reset LEG WORK LEVEL lt gt lt Y gt Set LEG resistance level 2 3 1 SportsArt TNESS 1 Battery Start Up Function 1 Use battery power to activate the unit Operation 1 Press START The display shows 20 and starts operating as shown below dim iho Peite n E Caria ve Suri GIL Piga T Laal E MEER LEG Work Level tangat Landi Cra Train CONTRAE AT PA LAE CONGMTONIAG i MII e UU F Fre 3 1 1 SportsArt TNESS 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 eft Picture ___ 3 1 2 SportsArt TNESS 3 Quick Start Mode Function 1 Start exercising without inputting personal settings Operation 1 To start exercising press QUICK START gt 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 Press lt STOP RESET gt Exercise mode stops The startup screen appears as shown on the right ett s ale nt Picture yeu
8. PersonalCardioAdvisor bi 638 HE Terri Select Prisgpam lepas Select Tires MISTER TIME WEICHT ma LEG Work Level ARM Work Level Kap d parma Cina pig oro je zn RIEN m 3 1 3 p mu wanj PELAR Programs CONDITIONING pe wtcuT I susa e Work Level SportsArt TNESS 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 red represents area already covered See picture below left 3 While you exercise CALORIES CAL HR DISTANCE METS WATTS values show Distance values accumulate RPM values appear for both legs and arms See picture below right 4 Directly press LEG WORK LEVEL v or ARM WORK LEVEL v keys to control resistance settings Left Picture Hight Picture 2 partisani PersonalCardioAcdvisor ven arr Losi Tra irat Tar ues nin k n d KT z HEARTRATE LJ Work Level e di A RA S A Work Level AALIII
9. connection 2 Inspect the LED1 and LED2 indicators on the drive board 2 Driveboard 1 LED1 and LED2 indicators on the drive board 6 2 2 SportsArt TNESS XT20 Error Message Move the pedals or arms the display leg or arm RPM window shows 0 1 Explanation arm RPM windows 1 The display board CPU reads the reed switch signal and displays values in the leg and 2 If the display cannot read the reed switch signal RPM values cannot be shown 2 Block Diagram Display Board aie Arm CLK e Battery J Reed Switch Drive Board LED1 LED2 Indicators 6 3 1 Leg CLK Reed Switch SportsArt TNESS 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 Wires are disconnected or broken Inspection Procedure 1 Inspect the reed switch wire connection MING 2 Inspect LED1 and LED2 on the drive board 2 Driveboard 1 Inspect LED1 and LED2 on the drive board Display board 1 Inspect the display board for a malfunction 5 Parts to Inspect 4 Cables f1 Inspect all cables and their connections 6 3 2 Spor tsArt FITNESS XT20 Error Message There is no resistance on arms or legs 1 Explanation 1 The
10. 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 2 Block Diagram Display Board Resistance Signal Electro Magnet Voltage 6 4 1 SportsArt TNESS 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 2 Inspect cables and their connections Electro magnet Inspect the electro magnet Alternator Inspect the alternator 6 4 2 SportsArt TNESS 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 Board Drive Board JJ O D Infrared Receiver Infrared Transmitter Key Signal 6 5 1 SportsArt TNESS 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 malfunctio
11. ross Traini i Wasp AFR CONDITION Programu S CONOIDONING srl de sti dh Tanini PA j idi let a sch E A ADV CONDITIONING Progr I4 ADV CONDIT TR s P f P3 Strength Sirene s ieri j 3 1 6 SportsArt TNESS 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 Programs explanations follow 1 MANUAL directly set resistance 2 RANDOM resistance changes at random 3 CARDIO aerobic conditioning WT LOSS weight loss mode 4 CONDITIONING physical conditioning 5 ADVANCED CONDITIONING advanced physical conditioning Left Picture E db GE dB LIGHT 5 5 3 case pei LEG Work Level Croat Training GE CONDITIONING T 1 Tnsisg GE 1 proves mim Aun SportsArt TNESS 8 Operating Programs Cont Function 1 Other program operation Operation 1 After entering a program MANUAL RANDOM CARDIO WT LOSS press 4 v keys on the display or handles to enter the time then press ENTER to confirm your choice 2 In CONDITIONING
12. 0 2V ae Resistance voltage leg 2 7 17 2V 2 1 1 SportsArt TNESS XT20 Display Window Functions uM _ Heart rate gt Shows 65 HH target Shows actual heart rate Shows 80 HR target Main window Shows prompts and illustrations Arm work level Shows arm resistance level Calorie CALORIES DISTANCI MET gt Shows calorie burn 1 Shows METS and and calorie burn per hour WATTS values Leg work level Shows leg resistance level value ADVANCED C VAI Leg RPM gt Shows rotations per minute leg Arm RPM Shows rotations per minute arm 2 2 1 SportsArt TNESS XT20 Display Key Functions PersonalCardioAdvisor To START lt MANUAL gt gt Keys directly determine settings lt RANDOM gt Automatic random resistance changes lt CARDIO WT LOSS gt Automatic control according to heart rate setting lt CONDITIONING gt Automatic physical conditioning program 1 lt ADVANCED CONDITIONING gt Automatic physical conditioning program 2 80 HR Target upper body arms Press QUICKSTART or START O Enter Age Press ENTER Q Enter Weight ARM WORK LEVEL lt gt lt V Set ARM resistance level DISTANCE CAUTION Keep hands and feet away from all eacts Consult a physician
13. agnet wire connections 2 The cable and connections from the magnet to the drive board SportsArt TNESS XT20 Reed Switch Test 1 Test Configuration Left Picture Right Picture 2 Test Procedure A Arm RPM 1 Press the lt START gt key The display lights up 2 Move the arms The drive board CLK LED flashes Display shows lt ARM RPM gt value 3 Move the arms once per second The display lt ARM RPM gt window shows 60 RPM 7 4 1 SportsArt TNESS XT20 Reed Switch Test 2 Test Procedure B Leg RPM 1 Press the lt START gt key The display lights up 2 Move the pedals Drive board CLK LED flashes Display shows the lt LEG RPM gt value 3 Move the arms once per second The display lt LEG RPM gt window shows 60 RPM 3 Troubleshooting 1 If your test results differ the reed switch is unstable or bad 7 4 2 SportsArt TNESS XT20 Alternator Power Test at the Drive Board 1 Test Configuration D 1 bs mm a Eu E 7 5 1 SportsArt TNESS 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 Troubleshooting 3 1 If there is no voltage inspect 1 All cable connections 2 F1 fuse on the drive board Replace if necessary
14. and ADVANCED CONDITIONING modes press these keys again to toggle between four options P1 P4 Exercise time is pre set Press ENTER to confirm your choice of programs The display appears as shown on the right Left Picture 27 at L M CARDIO VT Lom EGNDITICHIING CED CONDITIONING LEG Wb n rk Level Strength amp Cardia Lo reuraining GOCONDITIONING Pragran PLP Sira P3 PA Tong TESA CONDITI Frignani PIL FI Toning Ls 3 1 8 SportsArt TNESS 9 Stopping Programs Function 1 Program mode values and prompts Operation 1 In program modes press lt STOP gt 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 To resume your workout hold the lt STOP RESET gt key two seconds The display will reset Left Picture Right P icture U NN E Taurini Trang 3 1 9 SportsArt TNESS 10 Battery Shut Off Function 1 Automatically turn off the unit after exercising Operation 1 Simultaneously press lt ENTER gt LEG Work Level v to turn off the display The battery circuit is disengaged and the display shuts off as shown on the right Picture Right XT20 E 3 1 10 SportsArt TNESS 11 Power Save Mode Function 1 Start the power saving mode Operati
15. au acne 7 9 1 SportsArt TNESS 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 Normal reading 4 8 5 2 VDC 3 Troubleshooting 3 1 If the display does not light inspect 1 Drive board to display cables and their connections 2 Display board for VCC voltage 7 9 2 SportsArt TNESS 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 00 3 If the display shows no reaction the key is broken 1 2 Test for open 1 Put voltmeter to the ohm setting Place probes on the two terminals on the right or left side as shown 2 Without pressing on a key there should be no reaction on the voltmeter 3 If the voltmeter reads 0 ohm when the key is not pressed the key has a short Replace it Left Picture Right Picture LEDILT uS LEDIA T AGE WET GH T i nea TP TE A QUICK START dc nam aaa dm ry p M PIL af T 4 Sas nre 7 10 1 SportsArt TNESS XT20 Arm Remote Key Test Infrared 1 Test Configuration 1 Key circuit board 2 Infrared transmitter SportsArt TNESS 2 Test Procedur
16. bad 5 Parts to Inspect Inspection Procedure 1 Batter 1 Test whether battery voltage exceeds 5 5V If not recharge battery y If not possible replace the battery 1 Test battery fuse F2 on the drive board F2 for continuity Replace if Drive board necessary a Inspect drive board wire connections Reconnect if necessary 2 Hissar board Inspect the data cable connection to the display Inspect whether the power LED on the display lights up Data cable 1 Inspect the cable for breaks or shorts 2 Inspect cable connections from the display to the drive board 6 1 2 SportsArt TNESS 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 Without either the alternator voltage or the reed switch signal the display cannot light 2 Block Diagram Display Board Q pe gt gt gt sc gt ei Reed Display Board Switch LED2 CLK Indicators 6 2 1 SportsArt TNESS 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 Parts to Inspect Inspection Procedure Reed switch 1 Inspect the reed switch wire
17. ct whether the drive board provides DC voltage to the battery 1 Inspect the battery wire connections 3 Battery 2 Inspect whether battery voltage is lower than 3V If so the battery is defective replace it 6 6 2 SportsArt TNESS 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 Rate Heart Rate Transmitter Heart Rate Receiver Display Board 6 1 SportsArt TNESS 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 Parts to Inspect Inspection F Procedure Bm gt s heart rate transmitter 2 Replace the transmitter POLAR 1 Inspect the POLAR receiver board position Some positions detect heart rate receiver better than others 2 Inspect the POLAR heart rate receiver board for component connections L 3 3 cable connection Inspect POLAR heart rate board wire connections Display board Inspect the 3 pin cable connections 2 Press on the display board IC chip to reinsert pin connections 6 2 SportsArt TNESS XT20 Altemator Test 1 Altemator test con
18. e 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 2 Use the right remote to set the arm resistance Resistance values in the display ARM WORK window change accordingly 3 LEVEL range 1 20 3 Troubleshooting 3 1 If there is no reaction to the keys inspect 1 Whether keys are stuck inspect the key circuit board 2 Infrared transmitter battery voltage 3 Wires and their connections 74112 SportsArt TNESS XT20 Polar Heart Rate Test l Test Configuration Actual heart rate UE display Peg rab a T GE bm gum m rap Polar transmitter 7 12 1 SportsArt TNESS 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 2 Active test 1 Put on the POLAR heart rate transmitter 2 Sit with the transmitter within 80 cm of the display Exercise on the unit 3 The display should show the heart rate reading 3 Troubleshooting 3 1 If there is no reading during the static test inspect 1 POLAR recei
19. ed on 7 6 2 XT20 Resistance Voltage Test at the Drive Board Continued through 7 7 3 XT20 VCC Voltage Test at the Drive Board Continued on 7 8 2 XT20 VCC Voltage Test at the Display Board Continued on 7 9 2 10 1 XT20 Display Board Key Test 1 1 XT20 Arm Remote Key Test Continued on 7 11 2 1 XT20 Polar Heart Rate Test Continued on 7 12 2 7 1 7 12 13 1 Addendum XT20 Drive Board Overview Voltage Specifications 7 13 2 0 0 3 SportsArt TNESS XT20 Picture XT20 Display ParinnallCardinAdvitor Kipapi eh Progr di ALORIES TNI ST CARDIO WT Le RPM CUM M TH MINI AMANTI I LOL TIC ISU B w LEG Work Level L ardi Loria Ti arit g CMS TL Pi wrap Pi Pq awaq AD COND TOWING Pei anms DISTANCE i Prange ae tow f ow e spit Pa Nasa i i E NEW NE En 2 1 2 1 SportsArt TNESS To START pedali ger Hepar CPUS TART Vilork TER a velim T Progr wn EHITER Tos 3 pont wiser Iy PEETI IHE SportsArt TNESS XT20 Lower Body Rear AC alternator 1 3 1 SportsArt 55 XT20 Lower Body Front Reed switch AC alternator 11 Fj n x k Battery im 1 1 3 2 SportsArt
20. figuration 7 1 1 SportsArt TNESS 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 Troubleshooting 3 1 If there is no voltage 1 Inspect all wire connections 2 Inspect AC alternator Replace if necessary 7 1 2 SportsArt TNESS XT20 Battery Voltage Test 1 Test Confic uration 4 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 3 Troubleshooting 3 1 If there is no voltage or voltage is too low 1 Inspect the battery wire connections 2 Inspect whether fuse F2 has broken 3 2 Recharge the battery by moving at 40 RPM or more 1 2 1 SportsArt TNESS 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 If greater than 20 or open the electro magnet it bad Replace it 3 Troubleshooting 3 1 If the reading is not normal inspect 1 Ihe electro m
21. ion Block Diagram Display Board Arm Leg Electro Electro Reed Switch Reed Switch Alternator 1 Alternator INED Er ERN Drive Board a Battery Infrared oe i Key Board Handle gt 4 1 2 SportsArt TNESS XT20 Display Board Wire Connection Block Diagram Display Board Polar Board C Safe Board Drive Board 5 1 1 SportsArt TNESS XT20 Disp SportsArt n s lt XT20 Display Board LED Indicators gt ala s 4 alll POWER 1 LED Lit 5V power supply 57 5 W LT TA Ara m 25 n 1 ilf 4 Mt NI y fi il m i 816 Ic Lai Tasa gar z E E x r lt i a T PPW Wu i n LT 2 LED1 C SAFE Indicator l y quee ua s s i gt Lit C SAFE operation EXTZ HIC LAMP clio SportsArt TNESS XT20 Display Board Wire Connectors CONI To drive board peak E l Y mM ar HIS 4 Ji JP f e wiku Ti To C SAFE board a eod ob ret ace gt To POLAR B D n 3 JE lt a 1 bo LA ee E 5 na receiver board b 5 1 4 SportsA
22. n 6 Cable malfunction 5 Parts to Inspect Inspection Procedure Remote keys 1 Inspect keys and the key circuit board infrareaitanamitta 1 Inspect the infrared transmitter batteries 2 Inspect the infrared transmitter Inspect the drive board wire connections Display board 1 Inspect the display board wire connections 3 Infrared receiver 1 Inspect the infrared receiver 1 6 Gables H Inspect all cables and their connections 6 5 2 Spor tsArt FITNESS 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 Block Diagram Display Board Alternator Alternator Drive Board DC Voltage Battery 6 6 1 Arm Voltage rm SportsArt TNESS 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 mallunction 4 RPM value does not meet or exceed 40 RPM so there is no opportunity to recharge the battery 5 Parts to Inspect Part Inspection Procedure Alternator 1 Inspect the alternator for AC voltage to the drive board 2 pave board 1 Inspect the F1 and F2 fuses on the drive board 2 Inspe
23. on 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 lt START gt or move the pedals or handles to resume exercising The display shows the previous screen as shown on the right Left Picture Right Picture o pre al djerr lRerength amp Candia enti ain ing A FIP Toray MM aee 3 1 11 SportsArt TNESS 12 Show Total Distance Function 1 See total distance Operation 1 Simultaneously press lt STOP REST gt lt ENTER gt lt DISPLAY Lock gt keys The display appears as shown 3 1 12 SportsArt TNESS 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 lt v 4 gt keys to enter the MODIFY setting 2 Then press v 4 to toggle to YES Press ENTER to confirm your choice See picture on left Press v keys to toggle between KG and LB Then press ENTER to confirm your choice See right ure 3 Left Pict Right Picture A nz Per ram sli ar dir Atene ice param a esc wae sta aF 3 1 13 SportsArt TNESS XT20 Display Board Wire Connection Block Diagram Display Board Polar Board C Safe Board Drive Board 4 1 1 SportsArt TNESS XT20 Drive Board Wire Connect
24. re 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 XT20 Display Board LED Indicators 5 1 4 XT20 Display Board Wire Connectors 5 2 Drive Board 5 2 1 XT20 Drive Board Wire Connection Block Diagram 5 2 2 XT20 Drive Board Component Placement 5 2 3 XT20 Drive Board LED Indicator Placement and Definitions 5 2 4 XT20 Drive Board Wire Connectors 5 2 5 XT20 Drive Board Fuse Locations 0 0 2 SportsArt TNESS Contents 6 Error Messages 6 1 1 Move the Pedals or Arms The Display Does Not Light Continued on 6 2 2 Move the Pedals or Arms The Display Leg or Arm RPM Window Shows 0 Cont 6 3 2 There is No Resistance on Arms or Legs Continued on 6 4 2 Remote Key Malfunction Continued on 6 5 2 The Battery Does Not Recharge Continued on 6 6 2 Polar Heart Rate Malfunction Continued on 6 7 2 Unit Does Not Start when Keys Are Pressed Continued on 6 1 2 7 Electronic Component Testing 7 1 1 7 2 1 7 3 1 7 4 1 7 5 1 7 6 1 7 7 1 7 8 1 7 9 1 XT20 Alternator Test Continued on 7 1 2 XT20 Battery Voltage Test XT20 Electro Magnet Test XT20 Reed Switch Test Continued on 7 4 2 XT20 Alternator Power Test at the Drive Board Continued on 7 5 2 XT20 Battery Test at the Drive Board Continu
25. rt TNESS XT20 Drive Board Wire Connection Block Diagram Display Board Arm Leg Electro Electro Reed Switch Reed Switch Alternator 1 Alternator Drive Board ess Battery Infrared FE a Key Board Handle gt 5 2 1 SportsArt TNESS XT20 Drive Board Component Placement 5 2 2 SportsArt TNESS XT20 Drive Board LED Indicator Placement and Definitions pln a y pk gt lit indicates detection of dona 2 7 LEG reed switch signal 5 2 3 SportsArt TNESS XT20 Drive Board Wire Connectors J4 gt reed switch electro magnet alternator arm J8 battery charger 2 lo reed switch electro magnet gt To battery J3 To right handle keys alternator leg J7 To left handle keys SportsArt TNESS XT20 Drive Board Fuse Locations 0 2 5 SportsArt TNESS 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 Start Keypad O Power LED Quick Start Voltage Drive Board Fuser2 Battery 6 1 1 D YWMED SportsArt TNESS 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
26. ver wire and its connections 2 Replace the POLAR receiver wire as a test 3 Replace the POLAR transmitter batteries as a test 3 2 If there is no reading during the active test inspect 1 The POLAR receiver is connected properly 2 The POLAR transmitter battery voltage Replace the transmitter as a test 7 12 2 SportsArt TNESS Addendum XT20 Drive Board Overview DRIVE BOARD OVERVIEW ALTERNATOR ARM ELECTRO MAGNET ARM REED SWITCH ARM BATTERY CHARGER DISPLAY DRIVE BOARD F2 F1 LEDI LED2 F3 li h Beda REMOTE ARM REMOTE LEG ALTERNATOR LEG REED SWITCH ELECTRO MAGNET LEG 7 13 1 BATTERY 6 VDC CHARGING 7 2 VDC DRIVE BOARD FUSES F1 ALTERNATOR FUSE 3A F2 BATTERY FUSE 2A F3 BATTERY CHARGER FUSE 2A FUSE DRIVE BOARD LEDS LED1 LEG CLK LED2 ARM CLK SportsArt TNESS Addendum Voltage Specifications RESISTANCE LEGS RESISTANCE ARMS BLUE BLUE BLUE BLUE LEVEL RPM VOLTAGE 5 50 45VDC 0 ALTERNATOR LEGS ALTERNATOR ARMS BLACK WHITE BLACK WHITE REED SWITCHES CONTINUITY WITH MAGNET PRESENT NO CONTINUITY WITH NO MAGNET PRESENT REMOTES REMOTES EACH HAVE TWO AAA BATTERIES CONSTANT CONSTANT OUTPUT PRESS HOLD BLUEBROWN INPUT BLUE BLACK BLUE BROWN 5 2 VDC 4 53 VDC 4 59 4 60 VDC 13 2
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