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SportsArt Fitness E875 Repair Manual
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SportsArt Fitness E875 Repair Manual

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E875 Repair manual (Electronics)

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Summary of Contents for SportsArt Fitness E875

  • Page 1 E875 Repair manual (Electronics)
  • Page 2 1-1. Product -E875 1-1-1...
  • Page 3 1-2. Display -E875 1-2-1...
  • Page 4 1-3.Component placement - E875 Display Control board Program board 1-3-1...
  • Page 5 1-3.Component placement - E875 Display CSAFE board HTR board Control board Polar heart rate board 1-3-1...
  • Page 6 1-3.Component placement - E875 Frame Alternator Battery 12V*2 Electro- magnet Speed sensor Drive board Model # board 1-3-2...

  • Page 7: C-Safe Board

    1-4. Block diagram-E875 HR receiver Display keypad HTR board Board C-SAFE Board Stride / Level key Electron Magnet Alternator Speed Sensor Battery Drive Board Stride motor (L) Charge Stride VR (L) Stride motor (R) Model board Stride VR (R) 1-4-1...
  • Page 8 1-5.Wiring diagram -E875 1-5-1...
  • Page 9 1-5. Wire connection- E875 Display Control board To drive board To fan To key pads To USB & CSAFE board To handrail stride & level Program keys board To HTR board Wireless Polar board 1-5-2...
  • Page 10 1-5. Wire connection-E875 Display CON3 CON1 To control board CON2 USB board CON3 CON4 CON5 CON1 CON2 CON6 Bluetooth key To control board To program board 1-5-3...
  • Page 11 1-5. Wire connection -E875 Display CON3 CON1 CON2 CON3 CON4 CON5 HTR board CON1 CON2 CON6 USB/CSAFE board Wireless Polar board 1-5-2...
  • Page 12 1-5. Wire connection -E875 Drive board To control board To battery To model # board To incline motor/VR To generator; magnet To outside power Speed sensor source 1-5-3...
  • Page 13 1-6. LED indicator -E875 Display POWER1 LED2communication indicator 1-6-1...
  • Page 14 1-6.LED indicator -E875 Drive board LED1 12V (control board) F3 battery fuse Led lit,12V 1A LED11 CLK indicator Speed sensor indicator LED2 Vcc (drive board power source) Led lit，5V F2 generator fuse 2A F1 charging fuse 3.15A 1-6-2...
  • Page 15 1-6. LED indicator -E875 Drive board Led4 incline power control Led lit，incline power Led off, incline power off LED3 R-DN  Lit ， right stride decrease Led 8 incline motor 22v power source Led lit, LED6 L-DN  Lit，left stride decrease LED5 R-UP ...
  • Page 16 1-7.Component specification -E875 Description Note Item Generator Main power Electro-magnetic field with current control Resistance control LEVEL 1 – LEVEL 40 Resistance range Speed sensor Infrared sensor Display Dot matrix & LED Main display Dot matrix Programs Heart rate control...
  • Page 17 2-1. Electronics troubleshooting -E875 Faulty item Description Inspect and test procedures Suggesting replacement parts No power Display is not lit up when 1.Check all wire connections 1. Drive board generator turn on the power 2.Check drive board generator fuse fuse 3.Check drive board LED 1,LED2...

  • Page 18: Control Board

    Lubrication Lubricate left & right side 1.Press <ENTER>+<Calories> for 3 seconds to enter of the incline motor for lubrication sequence. maintenance Model no. setting Keep JP1 and cut the remaining for E875 2-1-2...

  • Page 19: Troubleshooting

    Troubleshooting Model No.: E875 Power indicator Malfunction item: No power - generator Circumstance: Display not lit up when power on Possible causes: 1.wiring connections 2.Generator fuse burnt 3.Bad drive board 4.Bad control board Troubleshooting: 1.Check generator fuse 2.Check all wire connections 3.Pedaling &...
  • Page 20 Troubleshooting Model E875 蓄電池 12V *2 Power indicator Malfunction item: No power – rechargeable battery Circumstance: Display not lit up when power on Possible causes: 1.Wiring connections 2. Rechargeable battery wiring Troubleshooting: 1.Check drive board battery fuse 2. Measure battery voltage and it should be above 12V/one battery;...
  • Page 21 Troubleshooting Model no. E875 Malfunction item: No Stride/min display Circumstance: No stride/min display while pedaling Possible causes: 1.Bad wire connections 2. Bad speed sensor signal Troubleshooting: 1.Check to see if the distance between sensor and its sticker < 5mm 2. Clean the speed sensor 3.
  • Page 22 Troubleshooting Model: E875 Malfunction item: No resistance Circumstance: No resistance while pedaling the bike Possible causes: 1. No Stride/min display 2. Bad drive board Troubleshooting: 1.Check LED11 indicator on the drive board 2. Check all wire connections 3. Check the generator voltage 4.
  • Page 23 Troubleshooting Model. E875 Malfunction item: Resistance too heavy or too light Circumstance: Resistance voltage too large or not enough Possible causes: 1.Bad drive board Troubleshooting: 1.Measure the drive board alternator voltage to see if it is normal 2.If voltage is normal, then heck flywheel 3.
  • Page 24 Troubleshooting Model no. E875 Malfunction item: Bad telemetry heart rate reception Circumstance: Bad telemetry heart rate reception Possible causes: 1.Telemetry transmitter battery too low 2. Bad HR receiver board 3. Interference issue, such as lights, speakers Troubleshooting: 1.Replace the transmitter or its battery 2.

  • Page 25: Htr Board

    Troubleshooting HTR board indicators Model no. E875 Name Description Malfunction item: Bad HTR signal LED1 POLAR indicator Light flashing = Polar signal working Circumstance: Bad signal for HTR LED2 HTR indicator Light up = hands on the HTR sensors Possible causes: 1.
  • Page 26 Troubleshooting Key pads Model no. E875 Malfunction item: Bad keys – membrane keys Circumstance: No response when pressing keys Possible causes: 1. Bad membrane keys Troubleshooting: 1.Reaplce membrane keys Membrane keys Display board Soft key 3-5-1...
  • Page 27 Troubleshooting Key pads Model No. E875 Malfunction item: Bad keys - display Circumstance: No response when pressing keys Possible causes: 1.Bad key pads 2. Tact switch sleeves not installed correctly Troubleshooting: 1. Check tact switch sleeves 2. Replace key pads...
  • Page 28 Troubleshooting Wire connections for handrails Model no. E875 Malfunction item: Bad key pads- handrail stride, level <▲>,<▼> Circumstance: No response when pressing the keys on the handrails Possible causes: 1.Bad wire connection on the handrails 2. Bad key pads Troubleshooting: 1.Check wire connections on console &...
  • Page 29 Troubleshooting Model No. E875 Malfunction item: ERR7 Circumstance: 1.Error message showing ERR7-INCLINE-R or ERR7-INCLINE-L Possible causes: 1.Bad STRIDE incline VR Troubleshooting: 1.Use the console auto VR range checking Function to see if it is over the range ERR7-INCLINE-R: Right side problem ERR7-INCLIME-L: Left side problem 2.
  • Page 30 Troubleshooting Model no. E875 Malfunction item: ERROR_8_1, ERROR 8_2 Circumstance: 1.Error message “ERROR 8_1” showing after power on 2. Error message “ERROR 8_2” showing while exercising Possible causes: 1.Bad wiring connection between control board & drive board 2. Bad wires 3.
  • Page 31 Troubleshooting Model no. board wires Model no. E875 Malfunction item: MACHINE MODEL UNIDENTIFIED Circumstance: The message of MACHINE MODEL UNIDENTIFIED showing when power on Possible causes: 1.Model board wiring connection issue Model no. Jumper not set properly Troubleshooting: 1.Check the model no. board connections on the drive board 2.Check Jumper setting on the model no, board,JP1 jump only...
  • Page 32 Troubleshooting Model no. E875 Malfunction item: Fan not operating properly Circumstance: 1.Pressing fan button; the display is working fine, however no fan function Possible causes:1.Bad control board 2.Fan wire connection or fan motor issue Troubleshooting: 1.Check fan button or wire connections 2.Measure control board fan output voltage...
  • Page 33 Other item Model: E875 Item: KPH/MPH switch, total distance, total time and software version display Method: 1. Press <CHANGE DISPLAY” for 3 seconds to get into user reference and setting mode A. English and Metric setting The display will show “UNIT-MPH” for English setting or “UNIT-KPH” for metric setting. Press INCLINE <▲> <▼> key to switch the setting.
  • Page 34 Other item Model no.: E875 Item: Lubrication operation Steps: 1.Press and hold＜ENTER＞ & ＜CALORIES＞ keys for 3 seconds to enter lubrication sequence. a. Display b. Stride incline motor will move up to the lubrication position. Add lubricant 2. When finish, turn the power switch on/off twice and the stride motor will return to its starting position to complete the process.
  • Page 35 Other item Model No.：E875 Item：Other functions Descriptions： 1.Power saving mode When there is no key or no rpm for more than 30 seconds at any situation, the console will enter power saving mode and display will show ”－－－－ ” 2.Power on A.Pedal to power on...
  • Page 36 Other item Model no.：E875 Item：Error message Description： 1.ERR7 INCLINE-R Stride incline motor VR issue on the right side; replace it 2.ERR7 INCLINE-L Stride incline motor VR issue on the left side; replace it 3.ERR7 INCLINE-R/L Stride incline motor VR issue on both sides; replace them 4.ERROR 8_1...
  • Page 37 Other item Model no. E875 Item: stride incline motor calibration Method: 1.stride incline motor calibration procedure Step1.The voltage between Black & White wires on the VR is about 4.1V Step2. The travel distance is 30-35mm Step1.figure A，voltage setting 4.1V (Black-white wires)
  • Page 38 Inspection & measurement Item: Alternator Testing item: Generating Voltage Generator wire Method: 1.Visually inspection connectors A.Check alternator wire connections B.Check drive belt for interference 2.Measure voltage Set volt meter to DC voltage setting. LED 1, 2 on drive board Should light up while pedaling. Alternator LED 1 12V LED 2 VCC...
  • Page 39 Inspection & measurement Item: drive board Testing item: Power source voltage inspection Method: 1.VCC,12V power source Power on，LED1 lit up  VCC voltage normal, about 5V. This is drive board power source. LED2 lit up 12V normal. This is for display. 2.
  • Page 40 Inspection & measurement Item: Speed sensor Testing item: speed sensor inspection Method: 1.Inspect Speed sensor A) speed sensor & optical label distance < 5mm LED11 CLK indicator B) Clean speed sensor surface C) LED5 will not light up when speed sensor is passing optical Label in black area.
  • Page 41 Inspection & measurement Item: Drive board Testing item: Drive board communication status Method: 1. Turn on the power and visually inspect the LED10 indicator flashing status. Normally, it is flashing regularly. If irregular flashing occurs, it means there is a communication error. LED10 Signal_err 4-4-1...
  • Page 42 Inspection & measurement Item: Drive board Testing item: Electro-magnet current and voltage Method: 1. Use volt meter and set it at DC voltage setting; put black & red leads to the blue wires on the electro-magnet to get reading. The current reading should be as below while pedaling LEVEL RPM=60 5.3V...
  • Page 43 Inspection & measurement Item: Electro-magnet Testing item: Electro-magnet circuit breaker inspection Method: 1. Turn off power, unplug the wire shown on the figure below from the drive board 2. Use the volt meter; set it at Ohms setting and test the electro-magnet connecting wires: blue/blue 3.
  • Page 44 Inspection & measurement Item: Rechargeable battery Testing item: Measure recharging battery voltage on the drive board Method: 1. Measure rechargeable battery on drive board 2. Set volt meter to above 50V. Put red/black led to the battery connector on the drive board. One battery = 12V; 2 batteries = 24V.
  • Page 45 Inspection & measurement Item: Rechargeable battery Testing item: Measure recharging battery voltage on the drive board Method: 1.Set volt meter to above 50V setting. Put red/black led to rechargeable battery connector on the drive board. 2. When pedaling above 60 Stride/min, the reading should be above 27V. 3.
  • Page 46 Inspection & measurement Item: Stride incline motor assembly Testing item: Measure VR voltage Method: 1. Set voltage meter to 20V setting 2. Put the red/black led to stride incline motor VR black/white wires to obtain the voltage reading. Press Stride<▲>/<▼> to adjust the stride value and the voltage reading should be: Stride VR(Left) VR(Right)
  • Page 47 Inspection & measurement Item: Stride incline motor assembly Testing method: Measure the incline motor voltage Method: 1. Set the volt meter to above 30V 2. Put the red/black led to the brown & blue wires on the incline motor VR to obtain the voltage reading. Press Stride<▲>/<▼>...