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SANYO HD27744 displays black screen/picture.

Flashes between black screen and pictureon and off upwards of 16 times before staying on picture. After extended viewing random flash to black.

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  • Televison & ... Master
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A shop should look at this---my guess would be a bad main board-it is of course the most expensive board in the set and controls almost everything.

Posted on Dec 07, 2012

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6ya6ya
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Posted on Jan 02, 2017

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SOURCE: t.v. will not turn on. flahes "lamp" then no picture!

I have a picture but the tv will periodically turn itself off during the day and then flash the 3 blinking lights...anyone know what the problem could be. We can fix it ourselves if we knew for sure what it is.

Posted on Jun 06, 2008

  • 50 Answers

SOURCE: 65" Mitsubishi Projection Television keeps flashing black screen

check your closed caption, long time ago there were 4 cc options. Turn it completely off, that might get rid of it.

Posted on Aug 07, 2009

SOURCE: black screen but get sound. picture flashes every

This sounds like a power supply issue. TVs operate on DC current and therefore must have a power supply board to invert AC house current to DC as well as regulate the DC current supplied. Heat is created by this process and therefore certain components on power supply boards are prone to failure due to repeated overheating. I would suspect capacitors on the power supply board are failing so they are only able to store enough power to allow the video board to work every 30 seconds and then it shuts off again. You can replace the whole board but I have repaired these before for a few dollars and some soldering. 

Posted on Nov 29, 2009

Slinteriors
  • 8617 Answers

SOURCE: My Tv wont stay on

Replace the deflection board. You can get a replacement deflection board from www.tvrepairworld.com

Posted on Jun 20, 2010

  • 84 Answers

SOURCE: PT-56LCZ7 BLACK SCREEN NO SOUND NO PICTURE

All the troubles I've seen with this model are because of the LIFI lamp. Panasonic warrants the lamp assembly for four years from date of purchase. Call Panasonic toll free hotline or go online for an authorized warranty shop. Good luck

Bill W
integrityhomeworx.com

Posted on Mar 14, 2011

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1 Answer

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If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/
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even though the lamp light is not flashing I would think it is the lamp getting weak for some reason the Sony's do that.

Aug 19, 2009 | Televison & Video

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65" Mitsubishi Projection Television keeps flashing black screen


check your closed caption, long time ago there were 4 cc options. Turn it completely off, that might get rid of it.

Jul 18, 2009 | Televison & Video

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Slow to come on, picture flashes black, 32" SONY tv


blankenship, the "IK circuit" is blanking your screen, only "fix" is temporary, remove back of tv, and on rear right side (facing into the back of the set) you can see 2 philips type plastic screws mounted on the flyback transformer, one is focus the other is screen, do not adjust focus , turn screen control clockwise slowly until you get white retrace lines on screen, then turn counterclockwise until retrace lines disappear, this increases drive from tube to IK circuit, will last anywhere from 6 months to 18 months and then it`s replacement time, questions? e-mail me back. good luck, BMW Rider

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1 Answer

Flashing light


this unit will have what is called ik protection wich means that the picture tubes are constantly monitor with this system all the way to the video procesor so the picture will desapear to a black screen even if the audio is ok,there may be a solution if contract a tech like me to adjust the bias so that compensates the drives to the pictures tubes since 1 or the 3 pt are week at this point.

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Your camera has a defective CCD imager. Please return the camera to Canon in New Jersey and they will replace the CCD at no charge to you. This is a known issue and should be covered under extended warranty. Good luck my friend. Joe Weibel customelectronics.org

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