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Coby KTFDVD 7070 unable to access tv channels

No picture on TV. Screen lights up in solid blue but no picture.

Posted by Anonymous on

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  • 444 Answers

Check that your set is set to the correct source. if one source doesn't work another should, say a dvd player. if a dvd player gives you a picture then either the connection or cable you are using is bad, possibly the tuner. it sounds like a connection problem to me.

Posted on Jan 24, 2015

6 Suggested Answers

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Posted on Jan 02, 2017

Adolph
  • 137 Answers

SOURCE: blue screen, no picture

Sounds like you switch the tv from pal to ntc or around.

Posted on Dec 24, 2007

SOURCE: TV blank, sound okay, picture comes for half a second while switching channels

i am a technician and i too have this issue. if any of you can get a schematic and service notes, send them to trae3@live .com and i WILL find the problem and report to each of you. i cant get any help from sears all i need is to speak with a technician who actually works on these things, get the paperwork and then i am sure it is a matter of a module swap. any info will help us!

Posted on Aug 13, 2008

  • 1 Answer

SOURCE: 42' polaroid tv wont show screen still

it is a manufacturing defect. Mine had it. My advice is to never buy polaroid tvs. but anyway, here is a link on how to fix the problem...
http://www.fixya.com/support/p443928-polaroid_flm_3732_television/tips

Posted on Dec 29, 2008

  • 476 Answers

SOURCE: digital channels have stopped working, only blue screen!

Try resetting the TV:

  1. Switch on TV and switch to any analogue channel.
  2. On the TV: Press and hold the MENU button.
  3. Menu screen will appear on the display.
  4. Do not release the MENU until the menu screen disappears.
  5. TV will go blank for about 60 seconds and then display initial set up screen.
  6. Follow the on-screen prompts to re-tune the TV.
If this does not work then the problem is likely to be a loose ribbon cable or main small signals board inside the TV.

Posted on May 19, 2009

  • 70 Answers

SOURCE: polaroid LCD TV Model 3200 - Will not turn on

you have a power supply problem.. I have fixed serveral tvs with this problem. normally you have to replace busted capacitors in the power supply board.

Posted on Aug 24, 2010

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The problem could be internal power supply failure. The blue light merely indicates power is getting to your TV.

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Be sure that your TV is in the TV-channel mode and not in the Video more. Some TV in Video mode are only displaying black screen.
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Power went out while tv & Direct TV was on


The garbage on your unused channels are not important, just artifacts from signals not strong enough to produce a picture.
The 'blue screen' on #3 is what many sets use when they sense they are connected (terminated) to 'something' but not receiving any signal.

If sounds a lot like DTV's receiver took a hit.

If you have a second set you can borrow or drag to the receiver, try it first but I don't think it is your problem unless the cable input on it was zapped.

Jul 12, 2008 | Televison & Video

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