STXL/SGFW is broke...

Discussion in 'STX and STXL Series Cameras' started by Fred Herrmann, Nov 3, 2014.

  1. Fred Herrmann

    Fred Herrmann Cyanogen Customer

    Joined:
    Oct 11, 2014
    Messages:
    30
    Doug,

    Purchased the STXL/SGFW on 2/13/14. Worked fine for months now with the occasional "undescribed error" every couple of nights or so the last couple of months. Cycling power fixed the problem so I ignored it and went on.

    Tonight I turned on the system, took dusk flats and proceeded to image. On the first image the filter wheel refused to turn and the SGFW assembly sounded like a machine gun. STXL shutter and AO work fine.

    Took the SGFW apart and reseated the connectors internal/external (RS232 and Board connectors). Loosened the gear belt drive set screws and retightened. The fw moves freely without any mechanical interference. The blue belt clears the filter wheel hold down screws.

    Best I can tell it's got to be either the fw motor or the circuit driving the motor as the motor appears to be stalling out. Stalling out is probably not the best description since nothing is blocking it's movement. Basically looks like it's not generating enough torque to move the wheel out of the recesses. I also tried to run it with the cover off just to make sure something on the guider hadn't come loose. No difference, still didn't turn. Same machine gun sound from the fw motor. Everything looks tight and in the right place. :)

    How do we proceed?

    Thanks,

    Fred
     
    Last edited: Nov 3, 2014
  2. Tim

    Tim Staff Member

    Joined:
    Sep 25, 2014
    Messages:
    1,842
  3. Bill

    Bill SBIG Service and Repairs Staff Member

    Joined:
    Oct 12, 2014
    Messages:
    527
    It was the motor.
     

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