Video Asylum

Lost my video signal, please advise

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DAT

(A)

I have three video signals (LD, DVD and VCR) going through a Yamaha RX-V1 receiver. All video screens on my Panasonic TV turned to a green squiggle (like when an old Nintendo game didn't quite work).
I had both component and S-Video connections from the amp to the TV, and when I disconnected the component connection the picture came back.
So, my question is, if you have the component connection made, does the video signal travel out through them, even if they aren't from a digital source?
If not, could it be a faulty switch in the receiver?
Since my component cables were cheapo Rat-shack ones, I'm thinking they probably just failed, but I don't understand why they would interfere with VCR playback.

Follow Ups:

Re: Lost my video signal, please advise - Estes 09:41:38 07/10/06 (4)
Is there an adjustment in the TV menu system that tells it which input to select? For example on my JVC there is a component vs S-video selection.
- Reply, second try - DAT 14:10:39 07/10/06 (3)
  I don't know if it has that type of selection or not. It does have two digital and three analog inputs, which is why I was surprised that a faulty composite cord would have any effect on the analog VCR signal.
  The fact that the problem was intermittent seems to point against a switch problem, IMO.
  - Re: Reply, second try - Estes 14:32:49 07/10/06 (2)
    Yes, if it is intermittent, then it is likely a switch problem.
    Another idea, check all the cables for loose wire that are causing shorts. I had that happen to me once, blew out the tapedeck.
    In other words, check everything twice & then blame the equipment.
    - I replaced the cables and it's working for now - DAT 20:09:58 07/10/06 (1)
      I get kind of confused with my terminology. These were component video cables (not composite) that I replaced.
      I was using the heavy gauge Radio Shack ones, which are so tight that I have left the connector attached, while yanking out the cable in the back. Given the height difference between the amp and the TV, gravity, or a wandering cat could have partially separated one of the connections.
      Time will tell if the problem is truly solved. Thanks.
      - Re: I replaced the cables and it's working for now - Estes 06:15:45 07/11/06 (0)
        
        In Reply to: I replaced the cables and it's working for now posted by DAT on July 10, 2006 at 20:09:58:
        
        Glad to hear things are working. There are lots more cables connecting things now & the chances for loose connections has grown by leaps & bounds. Given that everything vibrates/is moved/bumped/ gets dirty, checking connections is a major undertaking.
        Just because it worked before, does not mean that something has not come loose. I have found that out the hard way!

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