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Signal issues: Should I upgrade to Premium component cables or is my TV.

post #1 of 6
10/15/07 at 8:41pm
Thread Starter 
I am having problems getting the HD pix with my Sanyo CRT HDTV. Here are my symptoms:

I get the words: "Component signal not available" when I tune to my HD channels (I am on Verizon Fios) and garbage lines.

I have two sets of rca component cables that I've gotten from my old provider (Cox cable) that I use on this TV. When I swap out one set for the other, I get the HD signal for about 30-45 minutes. Then, I get the words above.

The Fios tech guy came by to deliver an extra box and I asked him to check out my problem. He checked the signal (it was strong) and gave me a new set of Verizon component cables. "Problem solved" he said and left. 30 minutes later I get the same words.

My question: Are my component jacks now fried and I can only get HD for only 30 minutes spurts? Is this repairable?

Or, Should I upgrade to the Premium cables that monoprice carries? Will this make a difference?

Also, all my cables are longer than 3 feet. Thanks.
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post #2 of 6
10/15/07 at 9:15pm
Unless all three sets are poorly terminated to the point of exact 30 minute failure, the greater than three foot length shouldn't make a difference. Premium cables might give you a little more piece of mind but I suspect the problem will remain. It might sound dumb but check your manual's troubleshooting section before you do anything.

There could be a problem with the cable box not outputting HD correctly, get the box changed and if the problem persists, get the TV checked out. Good luck & aloha.
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post #3 of 6
10/16/07 at 1:09am
Did you try a different input? Did you try an SD input? I'd lean towards the TV being the issue. I doubts it's a cable or FIOS issue.
How could the tech check the signal strength on the component output? They usually only check the RF signal on the coax or fiber - totally different thing.
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post #4 of 6
10/16/07 at 5:54pm
Thread Starter 
Thanks for the replies.

I'm gonna try to swap one of my HD boxes for this one to see if that helps. What kills me is that if I swap one set of cables the HD will work for about half an hour. I'll report back.

Biker, the verizon guy checked the signal strength out of the coax coming out of the wall. He had some kind of giant handheld PDA thing.

One more thing about my TV, I get all my channels via the "component" input. I cycle (via input) through CATV, input 1, input 2 and component. Only the HD channels won't work. regular channels work and look like always. Don't know if that matters, but I thought I'd share.
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post #5 of 6
10/16/07 at 11:42pm
That's what I thought - checking the coax tells you nothing about the component output of the STB. Do you have anything else with a component output that you can try on this input of the TV? I still say the component input of your TV is going bad - switching of the cables just happens to "rejuvinate" the input for a while.
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post #6 of 6
10/17/07 at 4:07pm
Quote:
Originally Posted by avspete View Post

Thanks for the replies.

I'm gonna try to swap one of my HD boxes for this one to see if that helps. What kills me is that if I swap one set of cables the HD will work for about half an hour. I'll report back.

Biker, the verizon guy checked the signal strength out of the coax coming out of the wall. He had some kind of giant handheld PDA thing.

One more thing about my TV, I get all my channels via the "component" input. I cycle (via input) through CATV, input 1, input 2 and component. Only the HD channels won't work. regular channels work and look like always. Don't know if that matters, but I thought I'd share.

IF SD channels work but HD channels only work for a while, and they are all using the same component cables, then the FIOS box is the most likely suspect. But the problem may be something else. Maybe your TV does not support 720p (most CRT TVs don't) and when you get an HD channel in 720p (ABC, ESPN, FOX) the TV won't handle the 720p signals. The half-an-hour thing is maybe just a coincidence. If that's the case, you need to change the settings in the FIOS box so it does not output 720p. I don't have FIOS so I can't give you exact instructions.
I also have a CRT TV that does not support 720p so my DirecTV receiver is set so it does not output 720p.
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