Hello,
I've been browsing here for last week or so, but decided today to join up in the community.
I"m pretty new to this forum and just recently started to tinker with some electronics for my car.
I'm currently struggling with an issue with a very weak composite video signal from an SD Card TV output player (bought it cheap on ebay). Pretty much my project is to output the signal from this card to a mobile video monitor unit in my car.
The signal travels from this TV-out card, to a modulator box, and then to the video head unit inside my car. I was told by the vendor of this modulator box that if the tv-out signal is too weak, it will result in pure black and white picture, as I was able to find out shortly after my installation
When I bring this tv-out unit and hook it up to my TV set inside my home, I am able to see full color picture just fine.
To also test the modulator unit, I also hooked up my home dvd player to it, and it was able to produce color on my car's navigation display just fine.
My question is : how can I produce a cheap, yet homemade in-line amplifier circuit so that the levels of this tv-out card would be high enough to produce a color picture? This amplifier would preferably be powered via 5VDC (voltage of tv-out card) , or alternatively 12VDC of car.
Hope I explained everything right, please let me know if you need more info.
Thank you, all!
I've been browsing here for last week or so, but decided today to join up in the community.
I"m pretty new to this forum and just recently started to tinker with some electronics for my car.
I'm currently struggling with an issue with a very weak composite video signal from an SD Card TV output player (bought it cheap on ebay). Pretty much my project is to output the signal from this card to a mobile video monitor unit in my car.
The signal travels from this TV-out card, to a modulator box, and then to the video head unit inside my car. I was told by the vendor of this modulator box that if the tv-out signal is too weak, it will result in pure black and white picture, as I was able to find out shortly after my installation
When I bring this tv-out unit and hook it up to my TV set inside my home, I am able to see full color picture just fine.
To also test the modulator unit, I also hooked up my home dvd player to it, and it was able to produce color on my car's navigation display just fine.
My question is : how can I produce a cheap, yet homemade in-line amplifier circuit so that the levels of this tv-out card would be high enough to produce a color picture? This amplifier would preferably be powered via 5VDC (voltage of tv-out card) , or alternatively 12VDC of car.
Hope I explained everything right, please let me know if you need more info.
Thank you, all!