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SportsArt Fitness T680 Repair Manual
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SportsArt Fitness T680 Repair Manual

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T680 Treadmill Repair Manual
SPORTSART INDUSTRIAL CO., LTD.

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Summary of Contents for SportsArt Fitness T680

  • Page 1 T680 Treadmill Repair Manual SPORTSART INDUSTRIAL CO., LTD.

  • Page 2: Table Of Contents

    【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 Connections 4-01-02. Display Area Board Cable Connections 4-01-03. Display Board Cable Connection Block Diagram 4-02-01. Drive Board Cable Connections 4-02-02. Drive Board Cable Connection Block Diagram 4-03-01. AC Incline Operation - Time 4-03-02 AC Incline Operation - Voltage 4-04-01.
  • 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 0-00-04...

  • Page 6: Main Component Placement

    1. Main Component Placement - T680 Treadmill Complete 1-1-1...

  • Page 7: Display Area

    2.T680 Component－Display Area Display Keys 1-1-2...

  • Page 8: Hood Area

    3. T680 Component－Hood Area Incline EMI Filter Incline Limiter Switch Inductor AC Servo Motor Drive Board 1-1-3...

  • Page 9: Tft Screen

    4. T680 Component－Display Area Keys WORKOUT GOAL & QUICKSTART Keys TFT Screen Setting Numerical Multi-Media Keys Keys Program Selection Keys 1-1-4...
  • Page 10 5. T680 Component－Display Inside TFT-LCD Board Fan Board Board Key Board 1-1-5...
  • Page 11 6. Component – Drive Board 1-1-6...
  • Page 12 7. Component－AC Servo Motor Encoder 1-1-7...
  • Page 13 8. 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. Components － Other（2） Part Name HTR Board Part Name Key Board Part Name AV Terminal Board Part Name EMI Filter 1-1-9...
  • Page 15 1. Product Specifications Specification Contents Notes TFT-LCD (10.2”) Main Window Full color (16,000,000 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% 0-15﹪...
  • Page 16 2. Introduction – Display Features Goal Setting TFT Screen Area Numerical/ Setting Area Multi-Medi a Keys Program Selection Area Keys, Fan, Earphone Socket 2-1-2...
  • Page 17 3. Introduction － TFT Screen Heart Rate Area Prompt Area Exercise Feedback Area Workout Goal Area Percentage Complete Matrix-Style Feedback 2-1-3...

  • Page 18: Display Indicators

    4. 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. Exercise mode selection area Lit indicates active exercise program: TRACK, RANDOM, GLUTE, INTERVAL,...
  • Page 19 5. Introduction － Display Area Keys WORKOUT GOAL & QUICKSTART Keys TFT Screen Selection keys: Enter (press to confirm settings), up/down setting keys, numerical keys, clear Multi-Media Keys keys Program Selection Keys 2-1-5...

  • Page 20: Display Circuit Boards

    6. Introduction – Display Circuit Boards LCD Screen PCB Inverter Fan Circuit Board Board LCD Keys Control Board 2-1-6...
  • Page 21 1. Operation－QUICK START Function: Press＜QUICK START＞key to start without first entering user age, weight and exercise program. Time counts up. Operation: 1. Press＜QUICK START＞ key. TFT screen shows “TREAD STARTING”. Setting value (left) counts down 3-2-1. Then the motor operates. 2.
  • Page 22 2. Operation – Workout Goal – TIME and DISTANCE Function: 1. Set time as exercise goal. 2. Set distance as exercise goal. Operation: “SELECT GOAL” appears on message screen. 1. Time setting: (1) Press the＜TIME＞key to select time as your exercise goal. Minutes flash as in Fig. 1. (2) Press＜▲＞/＜▼＞...
  • Page 23 2. Operation－Workout Goal - CALORIE Function: Set calorie expenditure as the exercise goal. Operation: Message window shows “SELECT GOAL”. 1. Calorie setting: (1) Press the＜CALORIES＞key to select calorie expenditure as your exercise goal. Setting window shows a value that flashes, as shown in Fig. 1. (2) Press＜▲＞/＜▼＞or numerical keypad to set calories.
  • Page 24 3. Operation － Program Mode － AGE and WEIGHT Function: 1. Set age 2. Set weight Operation: 1. User age setting: (1) Enter the PROGRAM setting. “ENTER AGE” appears on the TFT screen to indicate activation of the age setting program. See Fig. 1. (2) Press＜▲＞/＜▼＞...
  • Page 25 3. Operation － Program Mode － SPEED and TARGET HR Function: 1. Set speed. 2. Set target heart rate. Operation: 1. User speed setting. (1) Enter the PROGRAM setting. “ENTER SPEED (KPH/MPH)” appears on the message screen. The setting window shows speed value. See Fig. 1. (2) Press＜▲＞/＜▼＞...
  • Page 26 3. Operation － Program Mode - TRACK Function: Track mode. One lap equals 400M / 0.25 mile. Operation: 1. Press the <TRACK> key. Choose your WORKOUT GOAL. Then press the＜ENTER＞ key to confirm your choice. See Fig. 1. 2. Press the＜▼/▲＞ keys to set user age and weight. Press the＜ENTER＞key to confirm your choice.
  • Page 27 3. Operation － Program Mode - RANDOM Function: Each time the random key is pressed a new random program appears. Operation: 1. Press the <RANDOM> key. Select your WORKOUT GOAL. Press the＜ENTER＞key to confirm your choice. See Fig. 1. . Press the ＜▼/▲＞keys to select your age and weight.
  • Page 28 3. Operation － Program Mode － GLUTE Function: Work your gluteus muscles in either a 30 or 45 minute program. Operation: 1. Press the <GLUTE> key. Press the＜▼/▲＞ keys to set age and weight. Press the＜ENTER＞ key to confirm your choice. .
  • Page 29 3. Operation － Program Mode － INTERVAL Function: 1. Exercise with two segments, one for rest, one for work. Each segment can have a different time, incline, and speed. 2. There are three rest to work proportions: 1：1, 1：2, and 2：2. Operation: 1.
  • Page 30 3. Operation － Program Mode － 5K & 10K Function: 1. Set 5 Km or 10 Km as your distance goal. 2. Choose either FLAT or HILL workout illustrations. Operation: 1. After pressing <5K>/＜10K＞keys, press the＜▼/▲＞ keys to set your age and weight. Then press＜ENTER＞to confirm your choice.
  • Page 31 3. Operation － Program Mode － WT LOSS & CARDIO Function: Speed and incline is automatically adjusted to maintain a target heart rate for either weight loss or a cardio workout. 1. WT LOSS program maintains a heart rate at 65﹪ of your maximum heart rate = ( 220-AGE）× 65﹪. 2.
  • Page 32 3. Operation － Program Mode － CUSTOM HR Function: Speed and incline is automatically adjusted to maintain a target heart rate set by the user. Operation: 1. User must wear a telemetry strap. Press <CUSTOM HR> key. Choose a WORKOUT GOAL. Then press the＜ENTER＞key to confirm your choice.
  • Page 33 3. Operation－Program Mode－FIT TEST Function: Operation BRUCE and GERKIN physical fitness tests. Operation: 1. Press the <FIT TEST> key. Press＜▼/▲＞keys to set age and weight. Press the＜ENTER＞key to confirm your choice. 2. Press numerical keys＜1、2＞ to choose either of the following: “1-BRUCE 2-GERKIN”.
  • Page 34 4. Operation － Multi-Media Mode (Source) Function: See different audio-visual modes. Operation: 1. Press the＜Source＞key to see different audio-visual modes. 2. The display toggles between the following modes: workout screen (looks like a track and has normal treadmill feedback), full screen TV or split screen (TV+WORKOUT SCREEN), AV (DVD) mode.
  • Page 35 4. Operation － Multi-Media Mode (Full/Split Screen) Function: 1. While viewing the TV, toggle between full and split screen views. 2. In workout mode, press this key to activate or stop automatic toggling between two feedback views. Operation: 1. In TV mode, press the＜Full/Split＞key to toggle between full and split screen views. 2.
  • Page 36 4. Operation－ Multi-Media Mode (Volume) Function: Adjust volume in TV and AV modes. Operation: 1. Press Volume＜ ＞/＜ ＞ to adjust volume. 2. On the upper right side of the screen, V appears as shown below. 3-4-3...
  • Page 37 4. Operation － Multi-Media Mode (Channel) Function: Set channels in TV mode. Operation: 1. Press Channel＜ ＞/＜ ＞ to set channels. 2. On the upper right of the screen, “CH 00-125” (example only) appears as shown below. 3-4-4...
  • Page 38 4. 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. In the upper right of the TFT screen, “SC 0” appears as shown below. The number after SC increases, indicating that the channel scan mode has begun.
  • Page 39 4. 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＞ + VOLUME＜ appears.
  • Page 40 4. Operation－ Multi-Media Mode (Choosing TV Channels) Function: Set TV channels. Operation: 1. Press CHANNEL＜ ＞or＜ ＞ keys to choose channels. 2. Continuously press CHANNEL＜ ＞or＜ ＞to set channels quickly (1，2...10，20..，30). 3-4-7...
  • Page 41 5. Operation － Other - Keys: Speed Function: 1. See and set speed. Operation: 1. Press SPEED<▲>. Values in the speed window increase. Unit speed increases. See below. 2. Press SPEED<▼>. Values in the speed window decrease. Unit speed decreases. 3.
  • Page 42 5. Operation － Other - Keys: Incline Function: 1. Set treadmill incline. Operation: 1. Press the INCLINE<▲> key. Values in the incline window increase. Incline operates up. 2. Press the INCLINE<▼> key. Values in the incline window decrease. Incline operates down. 3.
  • Page 43 Numerical values on the display do not return to zero. Press the SPEED key. Operation resumes. See Fig. 2. 3. In program mode, press the＜STOP＞ key for three seconds. The display shows the startup screen, “SPORTSART－T680”, and the incline calibrates and other windows calibrate. See Fig. 3. Fig. 1 Fig. 2 Fig.
  • Page 44 5. Operation － Other Keys: Fan Function: 1. Control fan operation. Operation: 1. Start unit. Each time the fan key is pressed, the fan setting toggles: low->medium->high->off. 2. Display shows the following: FAN-LOW->FAN-MID->FAN-HIGH->FAN-STOP. 3-5-4...
  • Page 45 5. Operation － Other - Keys: Enter Function: 1. Confirm settings; 2. Set KPH/MH and see unit settings. Operation: 1. After establishing setting values, press the ＜ENTER＞ key to confirm your choice. 2. At the startup screen, hold the＜ENTER＞key for three seconds to enter basic setting mode and determine KPH/MPH settings.
  • Page 46 1. 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 CARDIO board JP6 (CON12) To key board J7 (CON13) To software keypad...
  • Page 47 2. Cable Connections － Display Area Board Cable Connections To display JP6 To display J3 To display J23 To TFT LCD To inverter board TV signal input To TFT LCD To fan To HTR handlebar To earphone connector To AV board To display J23 4-1-2...
  • Page 48 3. 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 4-1-3...
  • Page 49 1. 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 4-2-1...
  • Page 50 2. 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 4-2-2...
  • Page 51 1. 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 52 2. 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) Red - White 110v/(220v) 4-3-2...
  • Page 53 1. 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 54 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 55 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 Display Board Servo Motor Encoder Drive Board Inductor (220V only) 5-2-1...
  • Page 56 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 57 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 Display Board Servo Motor Thermal Drive Board Sensor Inductor (220V only) 5-3-1...
  • Page 58 3. Operation Order Part Explanation Drive board detects the thermal sensor signal and transmits that signal Drive Board to the disp Dat Cable 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 59 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 Display Board Servo Motor Drive Board Encoder Inductor (220V only) 5-4-1...
  • Page 60 3. Operation Order Explanation The d rive b oard detects the encoder signal and transmits it to the Drive Board display bo Dat Cable The enco r signal travels via the data cable. 1. The dis ay board detects the encoder signal from the drive board. 2.
  • Page 61 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 Display Board Servo Motor IGBT Drive Board Inductor (220V only) 5-5-1...
  • Page 62 3. Operation Order Part Explanation he dr ive bo ard detects the IGBT over current signal and transmits the Drive oard signal to th display board. 1. The displ ay board receives the drive board IGBT over current signal. rd 2. If the dri e board detects the IGBT over current signal, the display Displ shows E 2-...
  • Page 63 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 Display Board Servo Motor IGBT Drive Board 5-6-1...
  • Page 64 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 65 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 is p la y B o a rd D riv e B o a rd C a lib ra tio n...
  • Page 66 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 67 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 68 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 69 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 Power Display Board Supply CON9 CON7 On/Off CON3 Switch Filter Drive Board CON4...
  • Page 70 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. Dat Cable The drive oard signal travels through the data cable to the display.
  • Page 71 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 Power Display Board Cord On/Off Switch Filter Drive Board 5-10-1...
  • Page 72 3. Operation Order Part Explanation 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 driv e board Display communication is normal. Board 3. The display shows E-8-2 if communication is ab normal.
  • Page 73 T680 Troubleshooting－ Motor Does Not Operate 1. Definition: Motor does not operate. Drive board does not read encoder signal. 2. Block Diagram Display Board CON 7 Servo Motor CON 2 Drive Board Inductor (220V CON 4 only) Encoder CON 6...
  • Page 74 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 75 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. Data ab 2.
  • Page 76 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 JP6(CON 7) J7(CON 13) Board Display Board Keys J25(CON 8)
  • Page 77 3. Operation Order Operation 1. Nor mal s ituation: Do not press any key. Key circuit is an electrical open. Ther e is no key operation. Key witch 2. Norma ituation: Press a key. Key circuit is an electrical short. Key operates.
  • Page 78 T680 Troubleshooting－ Display Key Malfunction 6-2-3...
  • Page 79 T680 Troubleshooting － Unit Will Not Start Up 1. Circumstance of Malfunction: Turn on unit. Display does not beep or light up. 2. Block Diagram Power Display Board Cord CON9 CON7 On/Off CON3 Switch Filter On/Off Switch Drive Board Inductor...
  • Page 80 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 81 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 82 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 Display Board Incline Up/Down Signal AC Incline Motor Voltage Incline Motor Drive Board...
  • Page 83 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 84 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. Dat Cable 1. The inc e up/down signal travels the drive board. 1.
  • Page 85 6. Troubleshooting Troublesh ooting Inc e 1. Inspec whether the incline motor has an electrical open. 1. Inspec the drive board wire connections. 2. Inspect the drive board F1 3A incline fuse? Replace it if necessary. rive 3. When the incline up or down LED lights, does the drive board put out power t o the incline motor.
  • Page 86 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 Power Cord Display Board CON9 On/Off EMI Filter...
  • Page 87 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 88 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 89 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 Board Transmitter 6-6-1...
  • Page 90 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 Telemetry 1. The telemetry heart rate receiver board receives the signal and transmits the signal to the display.
  • Page 91 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 92 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 93 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 94 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 95 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 96 3. Operation Order Part Operation 1. P ut the s afety key in place to operate the unit. 2. In use, r emove the safety key. The unit stops operating. 1. Test the reed switch on the safety key board by probing on both sides of the reed switch.
  • Page 97 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 Dat Cable Inspect w ether the cable is connected properly. 1.
  • Page 98 T680 Troubleshooting－Fan Malfunction 1. Circumstance of Malfunction: Press the <Fan> key. The fan does not operate. 2. Block Diagram Fan Key Fan Circuit Display Board Board Board 6-9-1...
  • Page 99 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 100 5. Troubleshooting Order Troublesho oting n K y ard Inspect the fan key board operation. 1. Inspect he display fan setting. Disp 2. Inspect t he display. Cable Inspec t the cable connections. Fan Circuit 1. Inspec he fan circuit board for output voltage. Board 1.
  • Page 101 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 102 (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 103 Testing － Motor 1. Test Configuration 7-2-1...
  • Page 104 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 105 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 106 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 107 Testing － Incline Motor Voltage 1. Test Configuration 7-4-1...
  • Page 108 2. Incline Indicator Positions LED3 INC_DN LED2 INC_UP 7-4-2...
  • Page 109 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 110 Testing － Incline Calibration Switch 1. Test Configuration 7-5-1...
  • Page 111 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 112 Testing － Safety Key Switch 1. Test Configuration 7-6-1...
  • Page 113 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 114 Testing － Telemetry Reception 1. Test Configuration Heart Rate Reading Telemetry Heart Rate Transmitter 7-7-1...
  • Page 115 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 116 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 117 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 118 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 119 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 120 Testing － Motor Thermal Sensor 1. Test Configuration 7-10-01...
  • Page 121 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 122 Testing－ Fan Board Voltage 1. Test Configuration 7-11-01...
  • Page 123 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 124 Testing － Power Supply at the Drive Board 1. Test Configuration 7-12-01...
  • Page 125 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 126 T670/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 127 T670/T680 Treadmill Walk Belt Tightness Adjustment Step 1: Set speed to 4 KPH/2.5 MPH. (T680 below left; T670 below right) Step 2: If belt tends to one side, adjust one side only until the margin (A&B) on both sides is the same.
  • Page 128 T670/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 129 T670/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 130 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 131 Step 3:1. Adjust rear roller adjustment screws. 2. Job complete: a straight walk belt. 8-2-3...
  • Page 132 T680 AC Motor Incline Software Calibration Procedure 1. Test Configuration 8-3-1...
  • Page 133 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 134 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 135 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 136 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 137 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.