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SportsArt Fitness T680 Repair Manual

15.4” tft lcd
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T680(15.4" TFT LCD)Treadmill Repair Manual
SPORTSART INDUSTRIAL CO., LTD.

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Summary of Contents for SportsArt Fitness T680

  • Page 1 T680(15.4” TFT LCD)Treadmill Repair Manual SPORTSART INDUSTRIAL CO., LTD.
  • Page 2 【Table of Contents】 1. Main Component Placement 1-01. T680 Treadmill Complete 1-02. Display Area 1-03. Hood Area 1-04. Display Area Keys 1-05. Display Inside 1-06. Drive Board 1-07. AC Servo Motor 1-08. Other (1): LCD, Keys, Fan Board, Telemetry Board 1-09.
  • Page 3 【Table of Contents】 4. Cable Connections 4-01-01. Display Board Cable Connection Block Diagram 4-01-02. Display Board Cable Connections 4-02-01. 15.4 INCH TFT LCD Cable Connection Block Diagram 4-02-02. 15.4 INCH TFT LCD Display Board (Back) 4-02-03. 15.4 INCH TFT LCD Display Area Board 4-03-01.
  • Page 4 【Table of Contents】 6. Troubleshooting 6-01. Motor Does Not Operate 6-02. Display Key Malfunction 6-03. Unit Will Not Start Up 6-04. Incline Motor Does Not Operate 6-05. The Fuse Blew 6-06. Telemetry Heart Rate 6-07. HTR Heart Rate Malfunction 6-08. Safety Key Does Not Operate 6-09.
  • Page 5 【Table of Contents】 8. Mechanical Adjustments and Part Replacement 8-1. T680T670 Treadmill Walk Belt Tightness Adjustment 8-2. T680T670 Treadmill Walk Belt Alignment 8-3.T680 AC Motor Incline Calibration Procedure - Software 8-4.T670/T680 AC Motor Incline Calibration Procedure - Hardware 0-0-4...
  • Page 6 1. Main Component Placement - T680 Treadmill Complete 1-1-1...
  • Page 7 2. T680 15.4” TFT LCD Component－Display Area Display Keys 1-1-2...
  • Page 8 3. T680 Component－Hood Area Incline EMI Filter Incline Limiter Switch Inductor AC Servo Motor Drive Board 1-1-3...
  • Page 9 4. T680 15.4” TFT LCD Component－Display Area Keys WORKOUT GOAL & QUICKSTART Keys TFT Screen Setting Numerical Keys Multi-Media Keys Program Selection Keys 1-1-4...
  • Page 10 5.T680 15.4” TFT LCD Component－Display Inside 1-1-5...
  • Page 11 6.T680 Component – Drive Board 1-1-6...
  • Page 12 7.T680 Component－AC Servo Motor Encoder 1-1-7...
  • Page 13 8. T680 Components － Other（1） Part Name LCD Screen Part Name Membrane Keys Part Name Fan Board Part Name Telemetry Board 1-1-8...
  • Page 14 9.T680 Components － Other（2） Part Name HTR Board Part Name LCD SOFT Key Part Name AV Terminal Board Part Name EMI Filter 1-1-9...
  • Page 15 10.T680 Components － Other（3） Part Name UL TUNER BOARD Part Name CE TUNER BOARD Part Name Part Name 1-1-10...
  • Page 16 1.T680 15.4” TFT LCD Product Specifications Specification Contents Notes TFT-LCD (15.4”) Main Window Full color (26,000,000 colors) Resolution 800H ×480W 1. TIME 2. DISTANCE Settings 3. SPEED 4. CALORIES 0.1-15.0 MPH (US Standard) Japanese market Speed 0.2-24.0 KPH (Metric) top speed: 18KPH Increments: 0.5%...
  • Page 17 2.T680 15.4” TFT LCD Introduction – Display Features TFT Screen Goal Setting Area Multi-Medi Numerical/ a Keys Setting Area Program Selection Area Keys, Fan, Earphone Socket 2-1-2...
  • Page 18 3. T680 15.4” TFT LCD Introduction － TFT Screen Prompt Area Heart Rate Area Exercise Feedback Area Workout Goal Area Percentage Complete Matrix-Style Feedback 2-1-3...
  • Page 19 4. T680 15.4” TFT LCD Introduction － Display Indicators Workout goal and QUICK START indicator Lit indicates entry into TIME, DISTANCE, CALORIES goal setting mode or entry to QUICK START mode. Setting value area Lit indicates which feedback is showing: TIME, DISTANCE, SPEED, CALORIES.
  • Page 20 5. T680 15.4” TFT LCD Introduction － Display Area Keys WORKOUT GOAL TFT Screen & QUICKSTART Keys Selection keys: Enter (press to confirm settings), up/down setting keys, numerical Multi-Media Keys keys, clear keys Program Selection Keys BASIC Operation KEY Incline,Speed,STOP,FA...
  • Page 21 T680 Display Operation 1. Start Up Function: Start and operate the unit. Operation: (1) Display shows “SPORTSART – T680”. After entering the start up screen 2 seconds, “SELECT PROGRAM OR QUICKSTART” appears. Press the QUICK START key to immediately start exercising or press the PROGRAM key to enter user settings.
  • Page 22 2.SPEED Key Function: Set speed function Operation: (1) Press the SPEED <▲> key. Values in the speed window increase. Speed increases. (2) Press the SPEED <▼> key. Values in the speed window decrease. Speed decreases. (3) SPEED range: 0.2~20 KPH (0.1~12 MPH). 3.INCLINE Key Function Function: Set treadmill incline position.
  • Page 23 6.CLEAR Key Function Function: Clear feedback window values. Operation: After entering a value, you can clear it out to zero. 7.Program Function Function: Activate a workout program. Operation: (1) Press any workout PROGRAM key. The corresponding indicator LED lights. (2) Workout programs include MANUAL, RANDOM, PLATEAU, INTERVAL, FAT BURN, VARI-STRIDE, WT LOSS, CARDIO, CUSTOM HR.
  • Page 24 12. Basic Settings Function: (1) Determine KM/MILE setting and see total distance, time, display, and drive board versions. Operation: (1) Press and hold the <ENTER> key for three seconds to enter basic setting mode. “UNIT - MILE” or “UNIT - KM” appears.
  • Page 25 T680 15.4” TFT LCD Operation － Multi-Media Mode (Scan) Function: Automatic channel scan. Operation: 1. Turn on treadmill. Press the＜Source＞key to activate TV mode. Simultaneously press VOLUME＜ ＞ + CHANNEL＜ ＞. 2. The CH at the right and lower hand side will get increased automatically which means it scans the TV channels automatically.
  • Page 26 T680 15.4” TFT LCD Operation － Multi-Media Mode (Adjusting Brightness) Function: 1. In either TV or AV mode, adjust TFT brightness. 2. In either TV or AV mode, adjust TFT contrast. Operation1 : Adjust TFT screen brightness. ＞. 1. Simultaneously press＜FULL/SPLIT＞...
  • Page 27 1. Cable Connections - Display Board Cable Connection Block Diagram Fan Board Telemetry Display Board Soft Keys Board Key Board Board Safety Key HTR Handlebar Board Drive Board 4-1-1...
  • Page 28 2. Cable Connections－Display Board Cable Connections J3 (CON3) J25 (CON8) To HTR board To soft key EMG stop J4 (CON3) To HRC board J23 (CON5) To TFT screen J24 (CON6) To fan board EMG CON4 stop To C-SAFE board JP6 (CON12) To key board J7 (CON13) To software keypad...
  • Page 29 1. T680 15.4” TFT LCD Cable Connection Block Diagram TFT LCD Overlay TUNER Board Inverter Board Display Board TFT LCD Drive CARDIO Board Board AV Board LCD SOFT Key 4-2-1...
  • Page 30 2.T680 Cable Connections－15.4” TFT LCD Display Board (Back) Display board LCD SOFT Key PCB INVERTER HTR Board FAN Board TUNER Board TFT-LCD Board 4-2-2...
  • Page 31 3.T680 Cable Connections －15.4” TFT LCD Display Area Board J26(CON7) To display J4(30PIN) CON9 CON1 TFT LCD To TUNER Board CON2 To Cardio Board CON2 J24(CON6) To display CON8 To inverter board J23(CON5) To display CON1 J3(CON3) To display CON3...
  • Page 32 1. Cable Connections－Drive Board Cable Connection Block Diagram Power Display Board Cord Motor On/Off Switch Filter Encoder Inductor Drive Board Thermal (220V only) Sensor Calibration AC Incline Switch 4-3-1...
  • Page 33 2. Cable Connections － Drive Board Cable Connections CON3 CON1 CON4 To power supply To thermal sensor To inductor CON2 CON5 To drive motor To incline motor CON7 CON6 CON9 CON8 To display board To display power To motor encoder To incline calibration sensor 4-3-2...
  • Page 34 1.T680 Cable Connections－AC Incline Operation - Time 1. Turn on the unit. Incline recalibrates to 0﹪. Up Travel Time Down Travel Time Model Every 0.5% Incline Time (0%-15%) Decline Time (15%-0%) t＝1s T680 t＝1s T670 T650 t＝0.9s 4-3-1...
  • Page 35 2. T680 Cable Connections － AC Incline Operation － Voltage Up Travel Time Black – Up Red – Down White - N Down Travel Time Incline Operation DISPLAY DRV LED Output Voltage LED 3→ON(UP) Black - White 110v/(220v) Down DOWN LED 2→ON(DOWN)
  • Page 36 1.T680 Cable Connections － Fan Operation Fan Board DISPLAY Voltage Output (Output) FAN-HIGH DC 12V High FAN-MID DC 9V Medium FAN-LOW DC 6V 4-4-1...
  • Page 37 T680 Error Messages－Error Code Overview 1. Display Format: ERROR_X_Y_ X and Y above are placeholders. In their place are digits. The X placeholder represents the following category of abnormalities. Digit Represents Servo motor abnormality IGBT abnormality Incline motor abnormality Power supply abnormality Signal abnormality 2.
  • Page 38 T680 Error Message － E-1-1 － Motor Encoder Error 1. Circumstance of Malfunction: Display shows E-1-1; unit does not operate. 2. Block diagram D isplay B o ard C O N 13 C O N 9 C O N 7...
  • Page 39 3. Operation Order Part Explanation 1. Tur n on u nit power. Drive board detects encoder signal. Drive Board 2. After co fir ing the signal is OK, the drive board transmits the signal to the disp Dat Cable The enco r signal is transmitted through the data cable.

  • Page 40: Table Of Contents

    T680 Error Message－E-1-2－Motor Excessive Heat Error 1. Circumstance of Malfunction: Display shows E-1-2, the overheated motor error message. Unit operates at half speed. 2. Block Diagram D isplay B o ard C O N 13 C O N 9 C O N 7...
  • Page 41 3. Operation Order Part Explanation Drive board detects the thermal sensor signal and transmits that signal Drive Board to the disp 2PIN ABL The therm l sensor signal travels via the data cable. 1. The dis ay detects the thermal sensor signal from the drive board. ard 2.
  • Page 42 T680 Error Message － E-1-3 －Motor Speed Error 1. Circumstance of Malfunction: Display shows E-1-3, the motor speed error message. 2. Block Diagram D isplay B o ard C O N 13 C O N 9 C O N 7...
  • Page 43 3. Operation Order Explanation The d rive b oard detects the encoder signal and transmits it to the Drive Board display bo Cabl The encod r signal travels via the data cable. 1. The dis ay board detects the encoder signal from the drive board. 2.
  • Page 44 T680 Error Message－E-2-1 －IGBT Excessive Current Error 1. Circumstance of Malfunction: Display shows E-2-1, the IGBT excessive current error message. 2. Block Diagram D isplay B oard C O N 13 C O N 9 C O N 7 C O N 2...
  • Page 45 3. Operation Order Part Explanation The d rive b oard detects the IGBT over current signal and transmits the Drive Board signal to t e display board. 1. The displ ay board receives the drive board IGBT over current signal. ard 2.
  • Page 46 T680 Error Message － E-2-2－IGBT Excessive Heat Error 1. Circumstance of Malfunction: Display shows E-2-2, the IGBT error code. The unit operates at half speed. 2. Block Diagram D isplay B oard C O N 13 C O N 9...
  • Page 47 3. Operation Order Part Explanation The d rive b oard detects the IGBT over heat signal and transmits that Drive Board signal to t e display board. 1. The displ ay receives the IGBT over heat signal from the drive board. ard 2.

  • Page 48: D Isplay B Oard

    T680 Error Messages － E-3-1 －Incline Calibration Error 1. Circumstance of Malfunction: Display shows E-3-1, the incline calibration error. 2. Block Diagram D isplay B oard C O N 13 C O N 9 C O N 7 A C Incline...
  • Page 49 3. Operation Order Part Explanation The d rive b oard detects the calibration switch signal and transmits it to Drive Board the displa board. 1. The displ ay receives the calibration switch signal from the drive board. Displ 2. If the dri e board does not detect the calibration signal, E 3-1 appears on the display.
  • Page 50 T680 Error Message － E-4-2, E-4-3 － Low/High Voltage Errors 1a. Circumstance of Malfunction: Display shows E-4-2, the low voltage error message. Re-start the unit after voltage stabilizes. 1b. Circumstance of Malfunction: Display shows E-4-3, the high voltage error message.
  • Page 51 3. Operation Order Part Explanation The d rive b oard detects the power supply voltage and transmits a Drive Board signal to t e display board. 1.The displ ay receives the error message from the drive board. ard 2. If the dri e board detects an error message, E 4-2 or E 4-3 appears Displ on the disp...
  • Page 52 T680 Error Message －E-8-1 －Communication Error at Start 1. Circumstance of Malfunction: Turn on unit power. Display shows E-8-1. Unit does not operate. 2. Block Diagram D isplay B oard P ow er C ord C O N 13 C O N 9...
  • Page 53 3. Operation Order Part Explanation 1. Tur n on unit power. Drive board detects various circuit functions. 2. After insp ecting for normal startup, the drive board sends Drive Board confirmati n signal to the display board and starts communication. Cabl The drive oard signal travels through the data cable to the display.
  • Page 54 T680 Error Message－E-8-2 －Communication Error During Operation 1. Circumstance of Malfunction: During operation, E-8-2 appears. Unit stops operating. 2. Block Diagram D isplay B oard P ow er C ord C O N 13 C O N 9 C O N 7...
  • Page 55 3. Operation Order Part lanation 1. The display CPU sends signals to the drive board according to user settings. 2. During operation, the display CPU detects whether the display and dri ve board Display Board communication is normal. 3. The display shows E-8-2 if communication is a bnormal.

  • Page 56: C O N 2 4P In

    T680 Troubleshooting－ Motor Does Not Operate 1. Definition: Motor does not operate. Drive board does not read encoder signal. 2. Block Diagram D isplay B o ard C O N 13 C O N 9 C O N 7 S ervo M otor...
  • Page 57 3. Operation Orde Part Troublesho oting 1. Pre ss th e SPEED key. The display shows the speed value. Displ ard 2. The disp ay CPU sends the motor signal to the drive board to control motor spee 1. The indu ctor is only used on 220V products.
  • Page 58 6. Troubleshooting Order Part Troubleshooting 1. Pre ss do wn to insert the display IC. Disp 2. Inspect c able connections at the display and drive board. 1. Inspect t he data cable connections at the display and drive boards. 13PIN Ca ble 2.
  • Page 59 T680 Troubleshooting – Display Key Malfunction 1. Circumstance of Malfunction: （1） Turn on unit. Keys activate without being pressed. （2） Press a key. There is no reaction. 2. Block Diagram 8PIN J25(CON 8) JP6(CON 12) 12PIN Board Display Board Soft keys...
  • Page 60 3. Operation Order Operation 1. Nor mal s ituation: Do not press any key. Key circuit is an electrical open. Th ere is no key operation. Key witch 2. Norma ituation: Press a key. Key circuit is an electrical short. Key operates.
  • Page 61 T680 Troubleshooting－ Display Key Malfunction 6-2-3...
  • Page 62 T680 Troubleshooting － Unit Will Not Start Up 1. Circumstance of Malfunction: Turn on unit. Display does not beep or light up. 2. Block Diagram D isplay B oard P ow er C ord C O N 13 C O N 9...
  • Page 63 3. Operation Order Part Operation Provides wer. EMI Filter Filters po er. The fuse otects the unit. If current is too high, the fuse blows. Fuse and F Holder Power Swit ch 1. When s itched to “0”, the drive board has no power. hen s itched to “1”, the drive board has power.
  • Page 64 5. Troubleshooting Part Troublesho oting ow r e Cord Inspect w ether the power cord is connected well. EMI Filter Inspect E I filter wire connections. 1. Inspe ct t he fuse holder wire connections. Fuse and F use 2. Inspect t he fuse holder spring.
  • Page 65 T680 Troubleshooting－Incline Motor Does Not Operate 1. Circumstance of Malfunction: Press the incline key. Values change in the incline window. But incline does not operate. 2. Block Diagram D isplay B oard C O N 13 Incline U p/D ow n...
  • Page 66 3.Incline Operation Incline Operation DISPLAY DRV LED Output Voltage LED 3→ON(UP) Black-White 110v/(220v) Down DOWN LED 2→ON(DOWN) Red-White 110v/(220v) 6-4-2...
  • Page 67 4. Operation Part Explanation 1. Pre ss IN CL<▲> or INCL<▼> key. Incline window values chance Disp rd accordingly 2. The disp ay CPU sends the incline up/down signal to the drive board. Cabl 1. The incl e up/down signal travels the drive board. 1.
  • Page 68 6. Troubleshooting Troublesh ooting Inc e otor 1. Inspe whether the incline motor has an electrical open. 1. Inspe the drive board wire connections. 2. Inspect the drive board F1 3A incline fuse? Replace it if necessary. e Boa 3. When th incline up or down LED lights, does the drive board put out power t o the incline motor.
  • Page 69 T680 Troubleshooting－The Fuse Burnt 1. Circumstance of Malfunction: （1）Main fuse blows. Turn on unit power, display does not light up. （2）Replace the unit fuse. Turn on power. Fuse blows. 2. Block Diagram D isplay B oard P ow er C ord...
  • Page 70 3. Operation Orde Part Explanation Provides wer. Fuse and When the rive board or other components have malfunction, the fuse Fuse breaks. On/O Sw itch When the switch is set at “1”, power enters the treadmill. When ther is no malfunction, the display lights up normally. Drive Board When the is a malfunction, the drive board has an electrical short.
  • Page 71 5. Troubleshooting Order Explanati Filter 1. Insp EMI filter wire connections. Fus and Fuse 1. Inspect whether the fuse and fuse specifications match. olde 2. Inspect the fuse wire connections. On/Of witch 1. Inspect the on/off switch wire connections. 1. Inspec wire connections to the drive board. e Boa 2.
  • Page 72 T680 Troubleshooting － Telemetry Heart Rate 1. Circumstance of Malfunction: （1）There is no telemetry heart rate signal. （2） The telemetry heart rate signal is incorrect. 2. Block Diagram Telemetry Telemetry Display Board Receiver Transmitter Board 6-6-1...
  • Page 73 3. Normal Operation Order Part Operation 1. The telemetry heart rate transmitter detects the human heart rate and Telemetry Heart transmits the heart rate signal to the receiver board. Rate Transmitter 1. The telemetry heart rate receiver board receives the signal and Telemetry Heart transmits the signal to the display.
  • Page 74 5. Troubleshooting Orde Procedure Telemetry Transmitter 1. Inspect the transmitter: Is it a SportsArt transmitter. 2. Replace the transmitter as a test. Tele Receiver 1. Inspect the telemetry heart rate receiver: Is it fastened securely? 2. Inspect the receiver board: Is the connector soldered securely? in Cabl 1.
  • Page 75 T680 Troubleshooting － HTR Heart Rate Malfunction 1. Circumstance of Malfunction： （1） Hold onto the HTR handlebar contacts. The display has no reaction. （2） Do not hold onto the HTR handlebar contacts. The display shows a heart rate value. 2. Block Diagram...
  • Page 76 3. Operation Part Order Explanation 1. Hold onto the HTR contacts with both hands. Handlebar 2. The contacts detect heart rate. 1. The heart rate signal travels the left and right HTR cables to the HTR Cable board. 1. HTR board signal indicator responds. Board 2.
  • Page 77 5. Troubleshooting Order Part Explanation Clean H TR contacts. r Contacts 2. Test H R wires. Inspect the HTR cable for crimps or breaks. Cables 2. T est the HTR cable. 1. I nspect HTR board HTR contact LED. 2. If LED2 does not light, the HTR cable or contact is malfunctioning.
  • Page 78 T680 Troubleshooting － Safety Key Does Not Operate 1. Circumstance of Malfunction: (1) Put safety key in place. There is not reaction whatsoever. (2) Do not put safety key in place. Unit operates as if the safety key was in place.
  • Page 79 3. Operation Order Part Operation 1. P ut the s afety key in place to operate the unit. 2. In us e, r emove the safety key. The unit stops operating. 1. Test the reed switch on the safety key board by probing on both Safety Key sides the reed switch.
  • Page 80 5. Troubleshooting Order Troublesho oting Safety Key Inspect w ether the Safety Key magnet attracts to metal. Safety Key Test whe er the safety key board reed switch operates propearly. Board 2PI Cable Inspect w ether the cable is connected properly. 1.
  • Page 81 T680 Troubleshooting－Fan Malfunction 1. Circumstance of Malfunction: Press the <Fan> key. The fan does not operate. 2. Block Diagram Fan Circuit Display Board 12PIN 6PIN Board(FAN) Board 6-9-1...
  • Page 82 3. Operation Order Part Operation n K y ard Press the fan key to determine fan operation. 1. The disp ay CPU reads the <FAN> key setting and shows the setting Displ ard on the disp 2. The fan peration includes high, medium, low and off settings. 1.
  • Page 83 5. Troubleshooting Order Troublesho oting n K y ard Inspect the fan key board operation. Inspect th cable connections. 1. Inspect he display fan setting. Disp 2. Inspect t he display. 6PI Cable Inspect th cable connections. Fan Circuit 1. Inspect he fan circuit board for output voltage. Board 1.
  • Page 84 T680 Troubleshooting－No TV or DVD Reception on the 15.4 inch TFT LCD 1. Circumstance of Malfunction: Turn on unit. Display turns on, but there is no TV or DVD reception. 2. Block Diagram 2PIN TFT LCD Overlay TUNER Board 20PIN...
  • Page 85 3. Operation Order Part Explanation 1. TFT LCD driver board receives display signals. TFT LCD 2. TFT LCD driver board receives TV and AV board image Board signals. 3. Provides power supply to INVERTER board. 30-PIN Cable 1. Digital signals travel to the TFT LCD overlay. 1.
  • Page 86 4. Troubleshooting Order Part Troubleshooting 1. Inspect cable connections. TFT LCD 2. Inspect U6 program IC connections. Replace as a test. Driver Board 3. Replace the TFT LCD driver board as a test. 30-PIN Cable 1. Inspect the cable and its connections. 1.
  • Page 87 T680 Troubleshooting－15.4 inch TFT LCD shows an image but there’s no sound. 1. Circumstance of Malfunction: (1) Turn on unit. There is a TV or DVD image but no sound. 2. Block Diagram CARDIO Board 3PIN TUNER Board 6-11-1...
  • Page 88 3. Operation Order Part Explanation 1. Accepts the TV and AV board image signals. Tuner Board 2. And it provides sound to the CARDIO board. 3-PIN Cable 1 The signal travels from the driver board to the CARDIO board. CARDIO 1.
  • Page 89 T680 Troubleshooting－15.4 inch TFT LCD Soft Key Malfunction 1. Circumstance of Malfunction: (1) Turn on unit. TFT LCD soft keys do not operate. 2. Block Diagram CON3 Display Board 5PIN CON8 CON7 TFT LCD Driver Board LCD Soft Key 6-12-1...
  • Page 90 3. Operation Order Part Explanation TFT LCD 1. TFT Driver Board receives display data. Driver Board 2. Adjust various TFT control signals. 5-PIN Cable 1. Signals travel to the TFT LCD driver board. 1. Display board receives key board key signals. Display Board 2.
  • Page 91 Testing－ EMI Filter 1. Test Configuration (1) Fig. 1. Point A to pointＢtest (2) Fig. 2. Point C to point D test 7-1-1...
  • Page 92 (3) Fig. 3: Point A to point E test 2. Test Procedure 1. Disconnect the EMI filter wires. 2. Put voltmeter to the 200 Ohm setting. Place probes separately as shown in Figure 1-3. 3. Normal test results are shown below. Figure Test Item Test Points...
  • Page 93 Testing － Motor 1. Test Configuration 7-2-1...
  • Page 94 2. Test Procedure 2-1. Motor Winding Short Test 2-1-1. Put voltmeter to the 200Ω setting. Disconnect motor wires from the drive board. Normal readings: Probe Normal Result Placement Red -White 0.1Ω Red -Black 0.1Ω White-Black 0.1Ω 2-1-2. Voltmeter should show continuity. 2-1-3.
  • Page 95 3. Motor Label Information Item Symbol Value Explanation Power 5 HP Peak Power, 5 HP (Peak) Torque 6.1N-m Torque Rating, 6.1 Newton-Meters (Rated) Torque 18.2N-m Peak Torque, 18.2 Newton-Meters (Peak) TYPE P.M.S.M Motor type: (Permanent Magnet Synchronous Motor) Insulation Insulation grade: F grade (155℃) 3600 RPM Rating: 3600 RPM Volts...
  • Page 96 Testing － Inductor 1. Test Configuration 2. Test Procedure 1. Disconnect inductor wires. 2. Put voltmeter to the Ohm setting. Place probes separately as shown on the inductor wire terminals. 3. Normal reading: 2 Ohm or less. 7-3-1...
  • Page 97 Testing － Incline Motor Voltage 1. Test Configuration 7-4-1...
  • Page 98 2. Incline Indicator Positions LED3 INC_DN LED2 INC_UP 7-4-2...
  • Page 99 3. Test Procedure 3-1. Put voltmeter to the 600 VAC setting. Place probes separately as shown. When operating up, place probes on CON5 white and black wires. When operating down, place probes on CON5 white and red wires. 3-2. Turn on unit power. Press the QUICK START key or the START key to operate the treadmill. 3-3.
  • Page 100 Testing － Incline Calibration Switch 1. Test Configuration 7-5-1...
  • Page 101 2. Test Procedure 1. Put voltmeter to the 20K Ω setting. Place probes separately on the incline calibration sensor terminals. 2. Touch the incline sensor to activate it. 3. Normal reading: 0Ω. 3. Troubleshooting 1. If not as above, replace the incline calibration sensor. 7-5-2...
  • Page 102 Testing － Safety Key Switch 1. Test Configuration 7-6-1...
  • Page 103 2. Test Procedure 2-1. Put voltmeter to the 200 Ohm setting. Place probes separately on both ends of the SW2 reed switch. 2-2. Do not put the Safety Key in place. Place probes on both ends of the reed switch. Normal reading: OL (electrical open).
  • Page 104 Testing － Telemetry Reception 1. Test Configuration Heart Rate Reading Telemetry Heart Rate Transmitter 7-7-1...
  • Page 105 2. Test Procedure 2-1. Static Test (1) Put telemetry strap in place. (2) Do not turn on the motor. Stand on unit walk belt, about 100 mm from the display. (3) The display shows the heart rate reading. 2-2. Active Test (1) Put telemetry strap in place.
  • Page 106 Testing － Heart Touch Rate (HTR) Board 1. HTR Board Indicator LED Placement and Definitions LED3 LED4 LED2 LED1 2. Indicator Definitions Color Name Explanation LED1 Telemetry Indicator Flashing indicates incoming telemetry heart rate signal. LED2 Orange HTR Contact Lit indicates hands are holding HTR contacts. Indicator LED3 Green...
  • Page 107 2. Test Procedure The following indicates normal heart rate operation. 1. Do not hold onto the HTR handlebar. HTR board indicators do not light. 2. Hold onto the HTR handlebar with both hands. The HTR board LED2 indicator lights. 3. LED3 indicator flashes, indicating an incoming HTR handlebar signal. 4.
  • Page 108 Testing － HTR Handlebar Continuity 1. Test Procedure 1. Do not turn on unit power. Remove the HTR board three-pin connector. 2. Put voltmeter to the 200 Ohm setting. Place probes separately as shown. 3. Normal test results: Continuity Test Ground Test Test Point Normal...
  • Page 109 2. Test Procedure The following indicates normal heart rate operation. 1. Do not hold onto the HTR handlebar. HTR board indicators do not light. 2. Hold onto the HTR handlebar with both hands. The HTR board LED2 indicator lights. 3. LED3 indicator flashes, indicating an incoming HTR handlebar signal. 4.
  • Page 110 Testing － Motor Thermal Sensor 1. Test Configuration 7-10-01...
  • Page 111 2. Test Procedure 2-1. Disconnect CON1, the thermal sensor switch wire, from the drive board. 2-2. Place probes separately to the 200Ω setting. Place probes separately as shown. 2-3. If the motor is not too hot, the voltmeter shows 0, continuity. Motor Thermal Sensor Normal Reading Notes...
  • Page 112 Testing－ Fan Board Voltage 1. Test Configuration 7-11-01...
  • Page 113 2. Test Procedure 2-1. Put voltmeter to the VDC setting. Place probes as on CON1 terminal pins as follows: red probe on the brown terminal, black probe on the black terminal. 2-2. Press the <FAN> key. Turn on the unit fan. Display shows FAN Low (Mid/High). 2-3.
  • Page 114 Testing － Power Supply at the Drive Board 1. Test Configuration 7-12-01...
  • Page 115 2. Test Procedure 2-1. Put voltmeter to the 400 VAC setting. Place probes on the white and black wires as shown. 2-2. Turn on unit power. The power switch illuminates. Normal reading: 110 (USA) or 220 (Europe). Normal test results follow: Test Wires Normal Test Results BLACK –...
  • Page 116 T680 Treadmill Walk Belt Adjustment Walk belt adjustment is needed when the belt tracks too much to one side or when the belt is too loose or tight. Step 1. Set speed to 4 KPH/ 2.5 MPH. Step 2. The walk belt should rotate in the center of the deck with equal space Step3.
  • Page 117 T680 Treadmill Walk Belt Tightness Adjustment Step 1: Set speed to 4 KPH/2.5 MPH. Step 2: If belt tends to one side, adjust one side only until the margin (A&B) on both sides is the same. Counter- Clockwise tightens belt...
  • Page 118 T680 Treadmill Walk Belt Tightness Adjustment Step 3: Test belt tightness by lightly Step 4. If too loose, turn adjustment screws on both bearing against it. sides equally one half to one turn. If too tight, turn adjustment screws on both sides counterclockwise one half to one turn.
  • Page 119 T680 Treadmill Walk Belt Alignment Adjustment circumstances: The walk belt is crooked or too far to one side. Step 1. If the gap size Step 2. differs from top to bottom, Attach front roller set adjust the top screw. block.
  • Page 120 Step 1. Adjust left/right rear roller screws. 2. Adjust the walk belt left/right adjustment screws. Step 2:1.Use a tool to pry the front roller tight. 2. Install the front roller adjustment block, adjusting its position with the screw. 8-2-2...
  • Page 121 Step 3:1. Adjust rear roller adjustment screws. 2. Job complete: a straight walk belt. 8-2-3...
  • Page 122 T680 AC Motor Incline Software Calibration Procedure 1. Test Configuration 8-3-1...
  • Page 123 2. Software Calibration and Testing (1) Calibration through Operation a. Continuously press the INCL<▲> key until the incline window shows 15%. As the incline motor operates, LED3 on the drive board lights. When the incline motor stops moving, LED3 on the drive board extinguishes. b.
  • Page 124 T670/T680 AC Incline Motor Calibration – Hardware Calibration Procedure Step 1. Set the unit onto a block. Step 2. Detach CON8 incline calibration wire from the drive board. Step 3. Remove the incline motor cover. Step 4. Press INC DN key until the incline declines fully.
  • Page 125 Step 5. Set off the AC incline motor down limiter. Step 6. Remove CON5 and the ground connector. Step 7. Remove the R-clip and lower incline pin. Step 8. Remove the hitch pin and upper incline pin. 8-4-2...
  • Page 126 Step 9. Remove the AC incline motor set. Step 10. Set the distance between holes to 264 264 mm Step 11. After calibrating the incline, Step 12. Press the INC UP key to 2% and stop. reinstall the incline. Connect wires. Let unit operate.Press the INC DN key to 0% to complete calibration.
  • Page 127 Step 13. Test Procedure (1)Continuously press the INCL<▲> key until the INC window shows 15%. Incline operates upward. Drive board LED3 lights. When the incline stops operating, LED3 extinguishes. (2) Continuously press the INCL<▼> key until the INC window shows 0%. Incline operates downward.