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Electronic Theatre Controls Inc

Tightening Encoder Knobs on Gio Consoles


Over time, the encoder knobs on your console may become loose.  You can fix this by tightening a small set screw holding them in place.


The information in this post is provided to assist in troubleshooting. Perform work at your own risk. ENSURE ANY POWER FROM DEVICES HAS BEEN DISCONNECTED BEFORE SERVICING ANY EQUIPMENT. If you do not feel comfortable performing the work, please contact us or your local service center. Be aware that ETC and its Affiliates are not responsible for any damage or injury caused by service of our products by anyone other than us or our authorized service providers, and such damage is excluded from the product’s warranty.


The information below applies to the original Eos Ti and Gio consoles, and not the enhanced versions. If your encoders look like this then this article does NOT apply to your console.  clipboard_edf21883685e82726c594ad14310b42ab.png

Required Materials

  • Coin or flat-head screwdriver
  • Phillips screwdriver
  • 1/16" Allen wrench

How to

Access the Control Panel
  • Lower the display panel all the way down, making the console as flat as possible.
  • Using a coin or a flat-head screwdriver, open the console's face panel via the two quarter-turn locks on the bottom of the console.
  • Lift up on the wrist rest of the control panel like the hood of a car
Loosen the Encoders
  • On Gio, loosen but do not remove the 4 screws indicated in this image:

Gio Screws to Remove.jpg

  • On Eos Ti, loosen the three screws on the Pan/Tilt encoders in this image:

Pan Tilt Screws to Loosen.jpg

  • For the parameter encoders, loosen one screw between each encoder.  Please note some of these screws were difficult to photograph, but are still indicated in the image here:

Ti Encoders Screws to Remove.jpg

Tightening the Set Screws:
  • Gently lower the face panel. 
  • Press UP on the encoders and they should push above the surface of the console, exposing the set screw.
  • Tighten this screw using a 1/16" Allen wrench.
Set Screw Edited.jpg
  • Make sure to re-tighten the screws on the underside of the console and re-lock the face panel when done.


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