SportsArt Fitness T670 Repair Manual
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SportsArt Fitness T670 Repair Manual

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T670 Treadmill Repair Manual
SPORTS ART INDUSTRIAL CO., LTD.

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Summary of Contents for SportsArt Fitness T670

  • Page 1 T670 Treadmill Repair Manual SPORTS ART INDUSTRIAL CO., LTD.

  • Page 2: Table Of Contents

    【Table of Contents】 5. Error Messages 5-01. Error Code Overview 5-02. E-1-1 – Encoder Error 1. Main Component Placement 5-03. E-1-2 – Motor Overheat Error 5-04. E-1-3 – Motor Speed Error 1-01. T680 Treadmill Complete 5-05. E-2-1 – IGBT Excessive Current Error 1-02.
  • Page 3 【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.T670 AC Motor Incline Calibration Procedure - Software 8-4.T670/T680 AC Motor Incline Calibration Procedure - Hardware...
  • Page 4 1. Product Picture 1-01-01...
  • Page 5 2. Component Placement－Display Area Display Keys 1-01-02...
  • Page 6 3. Components－Motor Area Incline Set EMI Filter Incline 0% Switch Inductor AC SERVO Motor Drive Board 1-01-03...
  • Page 7 4. Components－Display Area WORKOUT GOAL & QUICKSTART Keys Heart Rate Window Feedback Screen Setting Screen and Keys PROGRAM Keys 1-01-04...
  • Page 8 5. Components – Display Area – Display Back 1-01-05...
  • Page 9 5. Components – Display Area－Display Board 1-01-06...
  • Page 10 6. Components – Drive Board 1-01-07...
  • Page 11 7. Components – AC Servo Motor Encoder 1-01-08...
  • Page 12 8. Components － Other（1） Part HTR Board Part Key Pad Part Encoder Part Telemetry Receiver Board 1-01-09...

  • Page 13: Product Specifications

    1.Product Specifications Specification Explanation Notes 5*8 two-color LED dot matrix 4 sets, Workout Program Illustration Illustration Screen 14-segment display, 16 sets（0.8”, green）, Shows scrolling character strings and Feedback Screen exercise feedback values Percentage Screen 26 x 2-color LED rectangular display shows percentages 1.
  • Page 14 2. Unit Specifications－Display Heart Rate Goal Setting Screen Value Screen and Setting Keys Screen Workout Program Keys Keys and Fan 2-01-02...

  • Page 15: Introduction

    3. Introductions－ Display Board (Heart Rate Indicator) WORKOUT GOAL and Quick Start Indicator Lit indicates the program is active. Heart Rate Indicator Setting Values Lit indicates time, distance, speed calorie values. Display Lock/Unlock Key and Indicator Lit indicates the active row and Workout Programs scan/lock mode.
  • Page 16 4. Introduction－ Display Board (Keys) <TIME> <DISTANCE><CALORIE <Display Lock/Unlock> S><QUICK START> Press to toggle between Keys rows. Also press to activate WORKOUT GOAL scan/lock feature. selection keys and Quick Start key ＜ENTER＞＜▲＞＜▼ ＞＜0~9＞＜CLEAR＞ Keys Confirm, up/down, numbers, clear keys < TRACK > < RANDOM > <INCLINE><SPEED>...
  • Page 17 5. Introduction－ Display Board (Back) 2-01-05...

  • Page 18: Operation

    T670 Operation 1. Start Functions: Functions: Press the Quick Start to start operation. Operation: (1) “SPORTSART – T670” appears on the start up screen. After two seconds, “SELECT PROGRAM OR QUICKSTART” scrolls across the screen. Press the QUICK START key or press the PROGRAM key to enter user information.
  • Page 19 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: 0.2~24 KPH (0.1~15 MPH). 3.INCLINE Key Function Function: Set treadmill incline position.
  • Page 20 6.Display Lock/Unlock Key： Function: Toggle between two rows of exercise feedback information Operation: (1) Press the <Display Lock/Unlock> key during exercise to toggle between exercise feedback views. Corresponding indicators light. Top row: CALORIES、SPEED、TIME、DISTANCE. Bottom row: CAL/HR、METS、PACE、INCLINE. (2) In scan mode (the SCAN indicator lights); the display view toggles between the two rows of feedback every six seconds.
  • Page 21 9. Basic Settings Function: (1) Determine KPH/MPH mode, see total distance, total time, display and drive board program versions. Operation: (1) Press the <ENTER> key for three seconds to enter basic setting mode. Present distance unit mode appears as either “UNIT - MPH”...

  • Page 22: Cable Connections

    1. Cable Connections－Display Board Connections CON1: To soft keys CON3: To Cardio Board J11: To soft keys JP2: CON1: To drive board To key board To contact HR board To telemetry receiver To fan board board 4-01-01...
  • Page 23 2.Display Cable Connection Block Diagram Key Board CON1 Telemetry Soft Keys Display Board HR Reciever Cardio J1(CON3) Board Board HTR Contacts (L/R) Drive Board 4-01-02...
  • Page 24 1. Drive Board Cable Connection Block Diagram CON1 CON4 To motor thermal switch CON3 To inductor To power supply CON5 CON2 To incline motor To motor CON6 CON8 CON7 CON9 To motor encoder To incline calibration switch To display board To display board 4-02-01...
  • Page 25 2. Drive Board Cable Connection Block Diagram Power Display Board Cord CON9 CON7 Thermal CON1 On/off Fuse CON3 switch Filter Inductor Drive Board Motor CON4 CON2 (220V) CON6 Encoder CON5 CON8 Incline Motor Calibration Switch 4-02-02...
  • Page 26 T670 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 4-03-01...
  • Page 27 T670 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 28 T670 Fan Operation Block Diagram Fan Board DISPLAY Power Output Output FAN-HIGH DC 12V High FAN-MID DC 9V Medium FAN-LOW DC 6V 4-04-01...

  • Page 29: Error Messages

    T670 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 30 T670 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) 5-02-01...

  • Page 31: Troubleshooting

    3. Operation Order Part Explanation 1. Tur n on u nit power. Drive board detects encoder signal. Drive Board 2. After co ir ing the signal is OK, the drive board transmits the signal to the disp able The enco r signal is transmitted through the data cable.
  • Page 32 T670 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) 5-03-01...
  • Page 33 3. Operation Order 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 34 T670 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) 5-04-01...
  • Page 35 3. Operation Order Explanation he dr ive b oard detects the encoder signal and transmits it to the Drive Board display bo able The enco r signal travels via the data cable. 1. The dis ay board detects the encoder signal from the drive board. 2.
  • Page 36 T670 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) 5-05-01...
  • Page 37 3. Operation Order Part Explanation he dr ive b oard detects the IGBT over current signal and transmits the Drive Board signal to t 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 38 T670 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 5-06-01...
  • Page 39 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 40 T670 Error Message － 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 41 3. Operation Order Part Explanation he dr ive b oard detects the calibration switch signal and transmits it to Drive oard the display board. 1. The displ ay receives the calibration switch signal from the drive board. Displ 2. If the driv e board does not detect the calibration signal, E 3-1 appears on the display.
  • Page 42 T670 Error Message － E-4-2/ E-4-3 － Low/High Voltage Errors 1. Circumstance of Malfunction:(1) Display shows E-4-2, the low voltage error message. Re-start the unit after voltage stabilizes. (2)Display shows E-4-3, the high voltage error message. Re-start the unit after voltage stabilizes.
  • Page 43 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 44 T670 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 P o w e r D isp la y B o a rd...
  • Page 45 3. Operation Order 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 46 T670 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 47 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 48 T670 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 6-01-01...
  • Page 49 3. Operation Order Part Troubleshooting . Pres s the SPEED key. The display shows the speed value. Display Boa rd 2. The displ y CPU sends the motor signal to the drive board to control motor spee 1. The induc tor is only used on 220V products.
  • Page 50 6. Troubleshooting Order Part Troubleshooting . Pres s do wn to insert the display IC. Displ 2. Inspect c able connections at the display and drive board. 1. Inspect th e data cable connections at the display and drive boards. Data abl 2.
  • Page 51 T670 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) 6-02-01...
  • Page 52 3. Operation Order Part Operation 1. Nor mal s ituation: Do not press any key. Key circuit is an electrical open. There is no key operation. Key witch 2. Norma ituation: Press a key. Key circuit is an electrical short. Key operates.
  • Page 53 T670 Key Types 6-02-03...
  • Page 54 T670 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 CON4...
  • Page 55 3. Operation Order Part Operation Provides p wer. EMI Filter Filters pow r. The fuse otects the unit. If current is too high, the fuse blows. Fuse and F Holder Power Switch 1. When sw itched to “0”, the drive board has no power. hen sw itched to “1”, the drive board has power.
  • Page 56 5. Troubleshooting Troublesho oting 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. Holder 3.
  • Page 57 T670 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 58 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) 6-04-02...
  • Page 59 4. Operation Order Part Explanation . Pre ss IN CL<▲> or INCL<▼> key. Incline window values chance Displ rd accordingly 2. The disp ay CPU sends the incline up/down signal to the drive board. able 1. The inc e up/down signal travels the drive board. 1.
  • Page 60 6. Troubleshooting Troublesh ooting nc 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 61 T670 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 62 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 63 5. Troubleshooting Order Explanati Filter 1. Insp t EMI filter wire connections. Fus and Fuse 1. Inspec t whether the fuse and fuse specifications match. 2. Inspec t the fuse wire connections. On/Of witch 1. Inspect the on/off switch wire connections. 1.
  • Page 64 T670 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 6-06-01...
  • Page 65 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 transmits the signal to the display.
  • Page 66 5. Troubleshooting Orde Procedure lemetry 1. Ins pect the transmitter: Is it a SportsArt transmitter. T nsmitte 2. Rep lace 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? n Cabl 1.
  • Page 67 T670 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 68 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 69 5. Troubleshooting Order Part Explanation Clean H TR contacts. r Contacts 2. Test HT R wires. . Inspect the HTR cable for crimps or breaks. Cables Test 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 70 T670 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. 2. Block Diagram...
  • Page 71 3. Operation Order 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. Saf y Key 1. Test the reed switch on the safety key board by probing on both sides of the reed switch.
  • Page 72 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 73 T670 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 6-09-01...
  • Page 74 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 75 5. Troubleshooting Order Part Troublesho oting n K y ard Inspect the fan key board operation. 1. Inspect the display fan setting. Displ 2. Inspect t he display. Cable Inspec t the cable connections. Fan Circuit 1. Inspect he fan circuit board for output voltage. Board .

  • Page 76: Testing

    Testing－ EMI Filter 1. Test Configuration (1) Fig. 1. Point A to pointＢtest (2) Fig. 2. Point C to point D test 7-01-01...
  • Page 77 (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 78 Testing － Motor 1. Test Configuration 7-02-01...
  • Page 79 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 80 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 81 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. 7-03-01...
  • Page 82 Testing － Incline Motor Voltage 1. Test Configuration 7-04-01...
  • Page 83 2. Incline Indicator Positions LED3 INC_DN LED2 INC_UP 7-04-02...
  • Page 84 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 85 Testing － Incline Calibration Switch 1. Test Configuration 7-05-01...
  • Page 86 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. 7-05-02...
  • Page 87 Testing － Safety Key Switch 1. Test Configuration 7-06-01...
  • Page 88 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 89 Testing － Telemetry Reception 1. Test Configuration Heart Rate Reading Telemetry Heart Rate Transmitter 7-07-01...
  • Page 90 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 91 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 92 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 93 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 94 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 95 Testing － Motor Thermal Sensor 1. Test Configuration 7-10-01...
  • Page 96 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 97 Testing－ Fan Board Voltage 1. Test Configuration 7-11-01...
  • Page 98 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 99 Testing － Power Supply at the Drive Board 1. Test Configuration 7-12-01...
  • Page 100 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 101 Testing－ Display Board Power Supply 1. Test Configuration VBB Test Configuration VCC Test Configuration 7-13-01...
  • Page 102 2. Test Procedure 2-1. Put voltmeter to the DC setting. Place probes as shown. 2-2. Turn on unit power. Power switch LED lights. Normal reading: +5V (VCC) and +16V (VBB). Normal Test Results Test Configuration Normal Reading +16V 3. Troubleshooting 3-1.
  • Page 103 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 104 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 105 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 106 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 107 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 108 Step 3:1. Adjust rear roller adjustment screws. 2. Job complete: a straight walk belt. 8-2-3...
  • Page 109 T670 AC Motor Incline Software Calibration Procedure 1. Test Configuration 8-3-1...
  • Page 110 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 111 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 112 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 113 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 114 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.

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