9X LCD Backlight

Difficulty: Easy. Although a little fiddly.

The cheapest and easiest of the mods thanks to Hobby King.
All you need to decide is what color light you want. Blue, White or Green. I chose green for the retro look.

Hobbyking has excellent instructions in the product images. Follow these.

Some tips:
  • Before you put the main board back on make sure the power wires are routed around where the switches fit into the back of the thumb pads.
  • Check that the thumb switches feel right before you put all the screws back in the main board. It is a little tricky to get right.
  • Only stick it in lightly as its almost held in place anyway and you might want to take it out again later on. Hot glue is your friend.

Turnigy 9x LCD Backlight

I had a small issue that came up after I had fitted my LCD screen when I turn the 9X off the lcd would flicker and the unit whistle. It is like the LCD and piezo were getting a small amount of voltage. For now I just put the power switch in the middle position to stop the noise. In a later mod I would like to re-wire the LCD so that it can be faded and turned off and on via software. I'll probably find the issue then, I have a feeling its in the plug somewhere. I cannot find anything similar on the forums so I'm guessing its a dodgy solder or something.

Update: Krzysztof emailed me and pointed out that the main board still gets power when the main switch is off. I am yet to do this myself but he solved the problem by cutting the track here:

Thanks Krzysztof.