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Author Topic: Pilot 250 pr 2250 gobo alignment  (Read 250 times)

Greg wilcox

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Pilot 250 pr 2250 gobo alignment
« on: May 05, 2019, 05:11:59 pm »

Hey guy Im new to this forum and the stage lighting world. I just had 2 pilot 250 pr2250 lights donated to our church. Both are in good condition but one of them the gobos are not aligned. When you turn it on it will show half of two different images. Im sure this is a simple fix. Anyone have an idea how to fix this problem
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Jeff Lelko

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Re: Pilot 250 pr 2250 gobo alignment
« Reply #1 on: May 05, 2019, 06:38:19 pm »

Hi Greg, welcome.  I'm not familiar with these particular units, but the first thing to do will be to determine if the wheel calibrates using a physical, magnetic, or optical trigger.  Just for some background knowledge, most intelligent lights need to place their mechanical attributes (color wheels, gobo wheels, etc.) into a known position so that they can execute user commands reliably, and this is done during a calibration sequence performed during power-up.  Physical calibration devices work simply by moving an attribute until a limit switch or mechanical stop is reached.  With the covers removed and the power disconnected, try turning the problematic gobo wheel with your finger.  If it hits a point that it can't turn any more, it's a physical calibration device.  Look at where that device is and adjust it until the problem corrects.  Oftentimes this is as easy as gently bending the lever of a limit switch or repositioning a bracket.  If the wheel can turn continuously, see below.

For devices that use magnetic or optical calibration, look for the hardware itself and go from there.  Magnetic calibration works with a tiny magnet on the wheel and a sensor fitted near the wheel to detect the magnet when it passes.  Optical works similarly, though usually with a light gate and a flag or perforation on the wheel.  In either case, small adjustments in the sensor's position will be necessary so that the wheel calibrates to the correct location. 

Some units allow for offsets in calibration to correct problems like this quickly and easily, though after skimming the manual for your units this doesn't seem like a possibility.  Hope this helps!     
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Greg wilcox

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Re: Pilot 250 pr 2250 gobo alignment
« Reply #2 on: May 06, 2019, 03:12:57 pm »

That definitely helps. I will give that a try. Thank you very much
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ProSoundWeb Community

Re: Pilot 250 pr 2250 gobo alignment
« Reply #2 on: May 06, 2019, 03:12:57 pm »


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