Question about JVC AV-27530 27" TV

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TV viewing screen shrinks to picture in picture size

I have a 10+ year old JVC TV.  Have just recently upgraded to digital TV.  When turning channels, display will shrink to the size of picture in picture (it is the same exact size as the display screen you see when looking through the digital tv guide) I have turned the tv off, and turned off the digital/dvr box with no luck.  Not sure if the problem is related to the new service or if something in the tv is wrong.

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 275 Answers

SOURCE: tv screen shrinks

Looks like some of the Electrolytic Capacitors in the Vertical Output stages have dried out and need to be replaced. If you are conversant with Solid State electronics servicing, then you can make an attempt. I generally do not waste time identifying the faulty capacitor, but replace the entire lot in thre Vertical stages. There are not more than 8-10 of them. Since you are changing them en masse, should not take you more than 30 - 45 mins to desolder the suspect ones, and solder the new ones. And it also saves you the bother of new problems cropping up in the near future, as all potential problems with old capacitors get removed.

Posted on Jun 20, 2007

Siliconchip
  • 52 Answers

SOURCE: vertical probs

yoyoy, check some leaky capacitor near the vertical chip. some of this caps may have gone out of their value.

Posted on Dec 29, 2007

  • 280 Answers

SOURCE: black screen on EVERY input/channel

Turn off the closed capition

Posted on Jun 19, 2009

  • 1 Answer

SOURCE: Black box taking up over 1/2 the screen.

caption box selection is on. disable caption

Posted on Jun 29, 2009

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