Flysky TH9X ER9X FrSky Telemetry Conversion Without RS232 Level Converter

I've been saving this mod for my friends quad while waiting for his  new FrSky modul (FrSky DF 2.4Ghz Combo Pack for JR w/ Module & RX) as the stock modul has raised doubt of its reliability for us who fly at Ampang area. There has been a lot of reports from fliers using Flysky and Turnigy 9x having problems with the stock modul.

FrSky has made a reliable modul for this TX at an affordable price which come with a telemetry capabilty. You will need a telemetry ready RX from FrSky to make use of its function and a couple of sensors with its FrSky DHT-U Telemetry System to display all its telemetry information.

With Flsky/Turnigy 9X flashed with custom firmware such as ER9X, we can have all the telemetry data directly on our TX screen without the use of DHT-U. That's awesome. Now get your soldering iron heat up.

FUTABA 7CHP PPM/PCM 2.4GHz Conversion Using FrSky DHT 8ch DIY Module

After my previous Backlight Mod, I am thinking of upgrading my 7CHP to a 2.4GHz but want to have the capability to switch to my old trusty 40MHz which i have more than a couple of RX around that i don't want to waste. So i remember seeing a video posted on Flitetest regarding such modification and found it on their website -> DIY 2.4Ghz Radio Upgrade on Flitetest by David Windestal
David are known for his work on RCExplorer have done a great job describing his way of modifying his 72Mhz 7CHP and here I am not trying to do a how to for this mod but instead just trying to share how i did it by using David's article.

Futaba 7CHP PPM/PCM Backlight Mod

I've been using this radio for so long from the time i got my Thunder Tiger Mini Titan 450 6ch RC heli about 4 years ago which i got it second hand from a friend. Since then it has been my primary TX for my aircraft.
  As for this couple of years, i'm active in our night flying activities which is held every Friday night at  a public field about 20 minutes drive from my house.
  The thing is, its hard to do some adjustment to my TX setting at night without a backlight on it. So i did some searching and found a way to have a backlight on my ol TX.