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I have a Sanyo DP 42848 LCD flat screen and it receives audio but no video. I have followed the instructions in the trouble shooting area of the manual, but still no video. Please advise...........

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  • ronmccolloug Oct 24, 2010

    Thanks for the prompt response.............regarding your display at all, all three inputs get no picture, no bright white light in back.

  • ronmccolloug Oct 24, 2010

    No faint image.........I do not have any electronics stuff to test with....

  • ronmccolloug Oct 24, 2010

    Thanks for your response.......



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Do you see on-screen display or menu in Sanyo DP 42848 screen?
Does tv not show picture in all inputs?
Check for bright white light coming from any vent holes at rear of tv, this will confirm tv has back light or not.
Let me know to diagnose possible cause of problem.

Posted on Oct 24, 2010

  • 1 more comment 
  • Shahid Electronics
    Shahid Electronics Oct 24, 2010

    OK, point flash light on tv screen, observe any faint image there?
    It seems back light is not working in your tv and possible cause would be either bad power supply or back light inverter board.
    Let me know if you are handy with electronics stuff and can check output volts of power supply board with multimeter.

  • Shahid Electronics
    Shahid Electronics Oct 24, 2010

    OK, no faint image found in screen.
    It seems more serious issue related with main board, please call local tv repairman for visual check of tv to determine what board is causing problem.

  • Shahid Electronics
    Shahid Electronics Oct 24, 2010

    Thank you, visual check by local tv repairman is needed to rectify problem section.



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Sanyo model 42848

This could be a faulty back light lamp.It is located right at the back of the screen It is an cold cathode lamp supplied by a high voltage from inverter board .Inverter board has a input voltage of 24 volts inverted into 300 volts AC this lamp lights up the screen...
You need to open the back cover to check the lamp.....

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I have a Sanyo Tv Model # DP 42848-00. When I turn on the tv all i see is up in the right hand corner video 1 (I can't change it) then the screen goes black. Can you held me with this problem? Thank...

Hello; The LCD panel is the likely cause of this problem. It can cost as much or more than a new TV. Bad inverter board(s). There are usually one to four of these PC boards. They light up the tiny florescent tubes behind the LCD panel. They are just like a ballast in the old florescent lights. The problem is that the manufacturer that made the LCD panel , also made the inverter boards that are in or on it and are NOT available separately. These are the high voltage power supplies that light up the " backlights behind the screen. The microcomputer in the TV watches these come on. If there is something wrong with one, it will shutdown the set.

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How do you clean the screen on a Sanyo DP 42849 LCD T.V.

  • Turn off the TV
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  • You can use small amounts of distilled water or non-ammonia based cleaning products, do NOTspray directly onto screen instead lightly moisten the cloth and follow up with a dry cloth * ammonia and alcohol based products can often haze the screen often dimming the display
  • There are special products you can purchase that provide anti-static properties to help prevent the dust from accumulating. Check you local electronics outlet if your interested or go to the link below from amazon.

I hope this helps,

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Does my Sanyo CLT1554 15 in. EDTV-Ready LCD have a digital tuner?

Your specs are here,;psum

unfortunately you have a

  • Analog TV Tuner NTSC
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You need a tv that has this:

Enhanced Definition Television (EDTV) Tuner - EDTV Tuner refers to a RF receiver with the following minimum performance attributes: - Receiver: Receives ATSC terrestrial digital transmissions and decodes all ATSC Table 3 video formats.

So Sorry, the tuner is not Digital.

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