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Hitec RCD ProModeler

New Heliman


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I have a second hand TREX600 with Futaba GY611 gyro. My helicopter gyro functions perform flawlessly. However, I noticed my amplifier screen has black blocks from left to right. Changing values from the radio does not do a thing to the screen. Anyone know what this may have been from, and what do I need to do to remedy this problem.
I try to adjust contrast, but without result...


Thank you,


12-18-2016 07:14 PM

Key Veteran

Brooklyn, NY-USA

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I'm going to assume that the contrast pot may be bad. Try to get in contact with the Futaba Brazilian distributor and see what they can do.


RIP Roman Pirozek Jr.
Team SRW Comp
Zeal Blades U.S. Flight Team
Citizen #664
Team Venom Power
Team CanoMod

12-18-2016 10:11 PM


Richmond, VA, USA

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Service is not financially practical. If you post here on RR, I bet you can find a used gy611 for barely the cost of shipping.

Ben Minor

Team Synergy Team Futaba Team Kontronik USA
Progressive RC

12-19-2016 04:16 AM
Kevin Dalrymple

Key Veteran


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There was a post here on Run Ryder going back 5+ years about someone fixing this same problem. I can not remember but I think he took the display apart and cleaned the display contacts and it was good as new again.

Synergy Field Rep Rail Blades Field Rep

01-26-2017 03:15 AM
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Scorpion Power Hitec RCD
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