I've attached two images of my AP-117 on screen display PCA. I noticed there is a missing resistor. It almost looks like it was ripped off. Is it supposed to be like this? See attached images.
Here is how I dropped the voltage of my LiPo to a safe voltage for use in my JR X9303 transmitter. I used two diodes in series. I have 3 sets of these in parallel for redundancy, in case one of more of the diodes fail. The triple redundancy is a bit over kill.