Motorola ts907 low hv

[timmy]

Originally Posted by old_tv_nut

You say all your black and white sets work fine. Those sets are analog. So, whatever you are plugging into the antenna terminals of those sets should work with your analog color set.

When you are describing the hookup, please be specific and step by step, like:
1. coax from wall to cable box.
2. cable box output (say what it is called on the box) to coax cable to matching transformer
3. matching transformer to TV antenna screw terminals

Ok when I got cable I realized that there is no cable out just HDMI I could have just plugged it into the flat tv but I needed to get signal to my other TV sets so I did with 2 small units HDMI plugs into from the cable box and changed it to I guess the analog signal and that’s what I use to run my old sets with a few splitters. So ok then it’s not the cable signal but rather the tv IF must still be out enough not lock in color but yet the IF accepts the signal from a DVD player using a modulator for games and DVD players.

[Yamamaya42]

Originally Posted by timmy

Ok when I got cable I realized that there is no cable out just HDMI I could have just plugged it into the flat tv but I needed to get signal to my other TV sets so I did with 2 small units HDMI plugs into from the cable box and changed it to I guess the analog signal and that’s what I use to run my old sets with a few splitters. So ok then it’s not the cable signal but rather the tv IF must still be out enough not lock in color but yet the IF accepts the signal from a DVD player using a modulator for games and DVD players.

Wait a sec...
HDMI output only?
are you using something like this?
https://www.amazon.com/GANA-Composit...ct_top?ie=UTF8

something like this will NEVER work on vintage TVs I have tried, they are JUNK
you will get NO color or barber pole effect due to the sloppy colorburst it puts out, solid state TVs work MOST of the time, but tube, NEVER will.
you must have a Cable box that outputs composite video (ntsc) for it to work correctly

[Electronic M]

Originally Posted by Yamamaya42

Wait a sec...
HDMI output only?
are you using something like this?
https://www.amazon.com/GANA-Composit...ct_top?ie=UTF8

something like this will NEVER work on vintage TVs I have tried, they are JUNK
you will get NO color or barber pole effect due to the sloppy colorburst it puts out, solid state TVs work MOST of the time, but tube, NEVER will.
you must have a Cable box that outputs composite video (ntsc) for it to work correctly

+1. I've had mixed luck with those. I've had that same box with a couple different brands on it. First one worked great for a few months (of occasional use) then lost video completely, the replacement would get and loose color randomly and have other issues.

I've got an older metal box HDMI to AV adapter that's out of production that works better. Though my go-to is an HDMI to ATSC transmitter and a DTV converter box for my tube sets...It's expensive but gives me the best quality and aspect ratio control I've been able to get from HDMI sources.
This video gives an overview of that stuff. https://m.youtube.com/watch?v=hKjt3x4WtWU

[Yamamaya42]

Originally Posted by Electronic M

+1. I've had mixed luck with those. I've had that same box with a couple different brands on it. First one worked great for a few months (of occasional use) then lost video completely, the replacement would get and loose color randomly and have other issues.

I've got an older metal box HDMI to AV adapter that's out of production that works better. Though my go-to is an HDMI to ATSC transmitter and a DTV converter box for my tube sets...It's expensive but gives me the best quality and aspect ratio control I've been able to get from HDMI sources.
This video gives an overview of that stuff. https://m.youtube.com/watch?v=hKjt3x4WtWU

but it's pretty clear that the HDMI to AV adapter is the source of the color problem, Timmy has the same as I had, looks the same, I spent over 2 hours screwing with it and color never worked on the stupid thing, so it was thrown in the garbage.
the review i left for it
VERY poor quality.
But that is not surprising for the amount spent on the unit, I was hoping it might work, but like many others who got it, I was disappointed.
I got this unit to try to convert HDMI to composite for a vintage TV, if you are expecting black and white only, then this may work for you, but if you want color, get something of better quality, because the colorburst freq this puts out is WAY OFF, meaning that any vintage equipment can't lock on meaning NO COLOR at all, or barberpoleing if it tries to lock in color.
The only way to get this to work correctly is to run it through a time base corrector to correct the colorburst phase errors and get TRUE NTSC color out of it, which makes getting the thing rather pointless.
Bottom line, get something better.