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Old 10-22-2013, 08:22 PM   #1 (permalink)
treotraveler
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Join Date: May 2012
Default Spektrum DX18 and DX18QQ scroll wheel

Needless to say that I was not a happy camper when my DX18QQ scroll wheel quit working last night. Upon disassembly, I discovered that the small plastic shaft that fits on the end of the wheel and spins the pot broke off the end of the wheel. Which disabled the scrolling process. I was able to fix it in about an hour.

Below are a few photos.

First Photo shows the scroll wheel and board assembly location inside the TX at the end of the hex driver.

Second and third photos show the wheel, broken shaft and board disassembled.

Fourth photo shows the end of the scroll wheel where the shaft broke off.

Fifth photo shows the head of the broken shaft fitted into dubro air line (hose). The air line was cut slightly above the head of the broken shaft to make a friction fit inside the end of the scroll wheel and allow some flexing when pressing the scroll wheel. The narrow part of the shaft fits into the pot.

Last photo shows the wheel, broken shaft and board reassembled.

Apparently, pressing on the scroll wheel to activate the selection switch, causes flexing of the shaft that fits into the pot to break off of the wheel. A radio that is more than a $1000.00 and only a few months old should not have part breakage issues.....
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