Stress test

Stress test

  

Problem - Solutions List

  • ECG traces are flat
    1. Solution :Check the continuity of the cable connecting body level amplifier to Treadmill controller.

      Details :Refer Cable DC1

    2. Solution :Check the continuity of the cable connected from connector (ident CN21) to the 9 pin female panel connector.

      Details :Refer Cable BP1

    3. Solution :IC 6N136 (ident U11,U12) on PCB 12003v1 interchange these IC's.

      Details: Refer Image 1

  • Elevation DOWN problem
    1. Solution :Check relay goodsky - GL-S-112D (ident RL 1) is faulty on PCB 8005v3.0,replace it.

      Details :Refer Image 2

  • Elevation problem
    1. Solution :SMD transistor BC 557 (ident Q2) is faulty on PCB 8004v3.0, replace it.

      Details :Refer Image 3

  • Elevation UP problem
    1. Solution :Check relay goodsky - GL-S-112D (ident RL 2) is faulty on PCB 8005v3.0,replace it.

      Details :Refer Image 2

  • Speed or Elevation problem; Required speed or elevation not obtained
    1. Solution :AD 8031 (ident U9) for speed is faulty, replace it. IC AD 8031 (ident U8) for elevation is faulty on PCB 12003v1, replace this IC.

      Details :Refer Image 1

    2. Solution :IC 7407 (ident U13) is faulty on PCB 12003v1, replace it.

      Details :Refer Image 1

  • Speed problem (Speed is very slow or very fast)
    1. Solution :DIP IC UC 3843 (ident U1) is faulty on PCB 8004v2.0, replace it.

      Details :Refer Image 3

    2. Solution :IGBT 30N60 (ident Q3) is faulty on PCB 8005v3.0, replace it.

      Details :Refer Image 2

    3. Solution :Diode 60-60A (ident D13) is faulty on PCB 8005v3.0, replace it.

      Details :Refer Image 2

    4. Solution :IGBT 30N60 (ident Q3) and Diode 60-60A (ident D13) is faulty on PCB 8005v3.0, replace them.

      Details :Refer Image 2

    5. Solution :Thermistor NTC (ident TH1,TH2) are faulty on PCB 8005v3.0,replace it.

      Details :Refer Image 2

    6. Solution :MOV capacitor (ident MOV1,MOV2, MOV3) are faulty,replace it. Even if only one mov capacitor is faulty on PCB 8005v3.0 ,replace all 3.

      Details :Refer Image 2

    7. Solution :DIP transistor BC 547 (ident Q9, Q10) are faulty on PCB 8005v3.0, replace it.

      Details :Refer Image 2

    8. Solution :SMD Resistor 4.7Kohm (ident R23) is shorted (Check on multi-meter whether it is shorted) on PCB 8005v3.0. Replace it.

      Details :Refer Image 2

    9. Solution :DIP IC LM 324 (ident U3) is faulty on PCB 8005v3.0, replace it.

      Details :Refer Image 2

    10. Solution :DIP IC UC 3843 (ident U1) is faulty on PCB 8005v3.0, replace it.

      Details :Refer Image 2

  • The main acqusition screen hangs
    1. Solution :Select the USB option from configuration menu.

      Details :NA

  • There are spikes on the ECG
    1. Solution :IC MAX323 (Ident U1) is faulty on PCB 12003v1 replace it. You will also have to replace tantalum capacitors 1uf/25v (ident C1,C2,C3,C4) . If this IC is faulty then communication is established but the speed and elevation may vary.

      Details :Refer Image 1