Trackspot Not Functioning

Hello All,

I have a trackspot that is not self testing or working on audio master setting. Here's some of the things Ive tried so far - maybe someone can point me in the right direction...

Board Version is 3.3 - TS IC version 4.2 - 3773 Motor Driver IC's

Sensors seem to be functioning - motors, shutter, gobos all home properly when power is applied to fixture.

Proper power is getting to board - checked voltage to board. Enable light is lit and fan comes on when first powered up.

When trying to self test, fixture goes through homing process, then does nothing - lamp does not turn on, mirror does not center itself. Just static after homing.

When trying fixture as audio master, it goes through homing process, then lamp powers on for a split second then goes out -- at the same time, mirror starts to move, then stops. After that, fixture is static.

Any help would be great - I am assuming the main logic ic is functioning since it does start to perform the correct functions... What is my next step in the troubleshooting process? Check resistors? Just start switching out chips? If so, which ones do I go with first?

Any help would be appreciated.
Thanks,
Chad
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  • 0
    OK, here's an update for anyone still reading this post... (thanks for the suggestions Jeeper and Space).

    I tested the wires on both pan and tilt motors as per Space's suggestion. Both pan and tilt are showing connection (.3 ohm resistance) in all four wires. I went ahead and changed out both motors just to be sure but that has had no effect.

    I had read some posts on the board about resetting the fixture (switching all dips on and setting the mechanical break to a full step on the stepper motor), so I figured I would try this to see if this might be the problem. I could not complete this step, however because switching all dips to the "on" position results in the fixture constantly resetting itself and not allowing the sensing of the steps in the stepper motor.

    I thought this to be interesting, so I tried something else - setting the fixture to personality 2 "on" - set up mode - works! Strangely the fixture homes to center, light comes on and shutter opens to allow me to focus the lens as it is supposed to.

    Could this be in issue with the dip switches? Maybe the chips that sit right next to them? Has anyone bypassed a dip? Can I short a leg of the switch to test or would this be a bad idea?

    Am I just throwing myself off the real path of the problem? Any other thoughts or suggestions? :confused:
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  • 0
    OK, here's an update for anyone still reading this post... (thanks for the suggestions Jeeper and Space).

    I tested the wires on both pan and tilt motors as per Space's suggestion. Both pan and tilt are showing connection (.3 ohm resistance) in all four wires. I went ahead and changed out both motors just to be sure but that has had no effect.

    I had read some posts on the board about resetting the fixture (switching all dips on and setting the mechanical break to a full step on the stepper motor), so I figured I would try this to see if this might be the problem. I could not complete this step, however because switching all dips to the "on" position results in the fixture constantly resetting itself and not allowing the sensing of the steps in the stepper motor.

    I thought this to be interesting, so I tried something else - setting the fixture to personality 2 "on" - set up mode - works! Strangely the fixture homes to center, light comes on and shutter opens to allow me to focus the lens as it is supposed to.

    Could this be in issue with the dip switches? Maybe the chips that sit right next to them? Has anyone bypassed a dip? Can I short a leg of the switch to test or would this be a bad idea?

    Am I just throwing myself off the real path of the problem? Any other thoughts or suggestions? :confused:
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