Question about RCA Televison & Video

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42 in RCA screeches then loses picture

After being on for a short time tv emits loud screeching, then picture goes to colored snow. I will take it in for repairs,but I'd like to know what to expect! I can't afford to go over $100. Thank you for your help. Beverly

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  • RCA Master
  • 74,198 Answers

Back - light problem. Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis.
http://electronicshelponline.blogspot.com/
In some models of LCD TVS; the backlight inverter and its T'Con board will be a part of the panel itself, and will be a built-in type inside the LCD panel. If so, they can't be replaced. In this case; a panel replacement is the only repair. For some other models, the backlight inverter section circuit will be a part of the main power supply regulator [SMPS]. To such sets, the power supply section circuit too should troubles shoot. Contact any service technician. The circuit will differ with models and versions.
Type in the brand name of your device, in the search box [at the top right] of the display window and the Search will start at once as you type in, and will show you all the related posts. It will make surf easy.

Posted on Apr 06, 2015

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  • RCA Master
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I would look into a NEW one with warranty before spending even 100.

Posted on Apr 06, 2015

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 2 Answers

SOURCE: SCREECHING NOISE

I have a 37" combo TV/DVD unit. It's been doing this for about 6 months. Wrote to tech support from their website. Got nothing but an automatic response. When I called them, they automatically tell you the part you need is not available. It is a law that a part be available for 7 years. I have filed a complaint with the Bureau of Electronic and Appliance Repair (BEAR) against them. I need a new LCD control panel. Others have had success getting the parts they needed by going this route. Try it. Maybe they'll stop scamming us consumers. They get your TV back, fix it and resell it as reconditioned.

Posted on Nov 12, 2008

  • 133 Answers

SOURCE: Hi I have a sylvania

your transformer on your power supply is bad, i would recomend replacing the power supply, usually when the transformer goes bad , it damages other things on the board, should be around a 200$ part

Posted on Jan 11, 2009

srinivas1515
  • 108 Answers

SOURCE: red, blue and green dots appear on screen like snow

ask ur service provider and ask him to change ur revolution or ask him to change ur sreen

Posted on May 21, 2009

Shuttle83
  • 1139 Answers

SOURCE: Vizio SV470XVT1A makes screeching sound

Hello,

This sounds as if it could be a ballast problem, or a switching power supply transformer problem. Both of these can produce this sound. I would suggest that you have a qualified TV technician repair this set due to the dangerous voltages and currents that could be present. In my experience with these TV I would have the technician pay special attention to the power supply board and the backlight/inverter section which includes the ballast used to fire the backlight.

I hope this helps,

Thank you,


Shuttle83

http://www.electron-age-technologies-llc.com

Posted on Jun 17, 2009

  • 1 Answer

SOURCE: screeching sound and display of color bars with no picture

it is two 1000uf 10 volt capacitors on the power board. the tops of the
capacitors will look like they are bulging. total cost of parts around
five dollars. if you can use a soldering iron and have a half hour to
spare this will fix it .there are alot of polaroid customers that have had
this problem and fixed it themselves. just click on the follwing to see
the video on this fix http://www.youtube.com/watch?v=unuS3CvmWtw

Posted on Sep 05, 2009

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