RPi 3 A/V out

Question

I'm new to the forums, but I have been reading through other posts and I can't seem to find the solution.

I'm trying to get A/V out working. HDMI works just fine, but this pi will be for my niece and her TV doesn't have any HDMI.

Based on the following diagram my camcorder cable will work using the right audio (red). I have even tested with my multimeter and verified my A/V cable does in fact follow the camcorder SRRT.

While the HDMI is disconnected I have tried the following:

Hold 3 during boot up

Hold 4 during boot up

Tried each RCA plug as video during boot up (just in case)

Removed # from sdtv_mode=2 config.txt

Any thoughts?

COMPACT · Answer

Be aware that the output quality and resolution will be greatly inferior.

COMPACT · Answer

If you have an Oscilloscope use it to see if the video signal is present.

dougw · Answer

RPi requires configuration to output composite video. I don't have an RPi3 to try this but it sounds like you are close: if you press the 3 key repeatedly during boot it generates PAL if you press the 4 key repeatedly during boot it generates NTSC Maybe it doesn't catch it every time, so you may need to do it a few times - I don't know if it is better to hold the key down or push it repeatedly. It should automatically boot to composite if the noob.config file is edited to include: display_mode=3 or display_mode=4

raste1@earthlink.net · Answer

I have done this several times and have found that in some cases the camcorder cable does not match the drawings and you need to take the shield from one connector and hook into a different connector . Confirm that Pin 4 (sleeve ) video signal goes to the center pin of the RCA connector. Confirm that Pin 3 (Ring 2) is connected to the shield of the same RCA connector Power off RPI disconnect HDMI. Plug AVI connector into the Pi plug the RCA connector into the tv Turn on the TV Select AV input Turn on the RPI you should see the color panel