Might be worth upgrading one of your other rca cables and using the old one on the cable box.
Cable av a rca para tv box.
Fosmon rca splitter with 4 way audio video rca switch selector box rca patch cable and s video cable 4 in 1 out composite video l r audio for connecting 4 rca output devices to your tv radioshack 1500320 1 input 4 output a v component video sound s video distribution amplifier splitter.
Then you will be able to easily switch the input signal without the need to disconnect and re connect your av devices.
All in one combine the hdmi cable and rca cable with hdmi to rca chipset converter.
I realized there is a way to fix t.
Hdmi cables from box and dvd to the tv.
Since it is powered i assume it would be too hot for using a simple 3 5mm to rca cable input to the rca jacks on the amp.
This demonstration uses one component video cable with red green and blue rca jacks and a separate audio cable with.
If you have a cable satellite box blu ray dvd player or another external source device and you have an external audio system such as soundbar home theater in a box system or home theater receiver it is best to connect the audio output of those source devices directly to your external audio system.
This panlong av switch allows you to connect multiple video devices with av out such as wii xbox dvd ps2 cable box to one set of standard yellow white red rca connectors of your tv using av cables.
I would also not worry too much about the rca cable from the box to the preamp.
It will convert hdmi signal amazon fire stick roku stb blu ray dvd ps3 ps4 etc to rca analog signal for av device such as rca input old tv.
Find the component video and audio outputs on your video source that is the device that is going to connect to the tv.
At best the analog audio is comparable to fm radio so it s not worth going for a great cable.
Hdmi to rca converter.
Mk812 android mini pc has both of av and hdmi outputs available.
You can use av cable to make your old tv smarter in 20 seconds.
I was having an issue where the av cable was not working on my tv.
Audio part will be trickier your receiver does not have optical coax and the tv does not have rca out.
I would run rca audio from cable to the receiver and get digital coax to rca for the dvd again to the receiver.
Tips on solving av cable output on your android tv box.
The only analog output is a powered headphone or i presume soundbar output so that is powered but totally inadequate power for driving a pair of ar 3a s and a center channel obviously.