oilburner2,
The link that you gave appears to be very similar to the mp5 "Convert Free 3" 16:9 screen wTV-Out" that I recently purchased.
It has the Ingenic JZ4725 CPU chip.
On my mp5, there is only one jack, which is used for both earphone and the TV-out cable.
To get TV-out to function, my mp5 has two settings in toolbox as follows:
TVOUT standard: (You select either PAL or NTSC)
TVOUT switch: (Off or Open)
You simply select the TV standard used in your country ( either PAL or NTSC) and set the switch to
open.
The TV-out cable has the three RCA plugs which connect to your TV's video inputs (yellow is video; white and red are audio).
The other end of the TV-out cable plugs into the earphone jack.
Note that the mini-jack of the TV-Out cable has
four conductors, not three like a normal earphone mini-plug. (see photo below)
Now when you connect the TV-Out cable, you should get the video as well as the audio.
Here is a pic of the TV-Out cable that came with my mp5 player.
Hope this helps you out.
Is your player a Rockchip or JZ4725 ?
To check, simply download the program ChipGenius v2.64 from this site and it will read the USB info, when you connect your player to your PC.
Cheers