Question about RCA L42WD250 42 in. LCD HDTV

13 Answers

Have no video everything else works properly.

42 inch LCD RCA with built in DVD player. TV was shut off normally and left for 2 weeks but on return hve no picture so can,t open the menu to check for possible problem.

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  • dhodge Feb 15, 2009

    as I indicated everything is working normal just have no video therefore can't access the menu. So I don't feel a lack of power is relevant. Nor is there blinking led's.

  • dhodge Feb 15, 2009

    the last advise didn't produce results

  • dhodge Feb 15, 2009

    The disconnect didn't do the trick. I also have tried a CD in the built in DVD player but still no luck.

  • dhodge Feb 15, 2009

    The power indicater light is on and everything works except there isn't any vidio feed.

  • dhodge Feb 15, 2009

    You mention I have a bad inverter and ask if it is working properly.Please explain how do I go about answering your question? Would you think this is a warrantable item, expensive and require to be repaired in an outside repair shop?

  • dhodge Feb 16, 2009

    I use a power bar for my computer and TV with surge protection. The computer is fine so assume the power spike is not valid. Any other theories?

  • dhodge Feb 16, 2009

    I use a power bar for my computer and TV with surge protection. The computer is fine so assume the power spike is not valid. Any other theories?

  • dhodge Feb 16, 2009

    I use a power bar for my computer and TV with surge protection. The computer is fine so assume the power spike is not valid. Any other theories?

  • dhodge Feb 16, 2009

    I use a power bar for my computer and TV with surge protection. The computer is fine so assume the power spike is not valid. Any other theories?

  • dhodge Feb 16, 2009

    no, I'm no further ahead than when I started the dialogue. I guess I expected you to tell me to try different things and if no improvement to be told take it to the repair shop but not all the different scenerios possible.
    Thanks anyway

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13 Answers

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As many a times it happens due to dust collected on the internal circuit or if tv reaches to stand by mode due to not used for particular time.for this you have to open the tv,then remove all the cables which are removable from the boards of the tv interrnally and reconnect then again as proper they were actually.also clean all the dust collected internally on the curcuit boards.with a air blower and dry tissue.and check out.it should work.other wise its a short circuit internally on the board that has to be checked with a multimeter and the faulty components should be replaced to make it proper.

Posted on Feb 16, 2009

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Your power supply is bad (or possibly the on switch).
In either case, warranty should cover it.
If no warranty, a service call is in order, as there are potential deadly voltages stored inside capacitors. Without the proper discharge, you could be seriously injured.
This is not an end-user fix.
Please seek professional repairs.

Thanks for using FixYa - a FixYa rating is appreciated!!

Posted on Feb 16, 2009

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It sounds like the lamp burned out on he sey it can happen anytime and there are alot of complaints about it,, please feel free to call someone in to verify my diagnosis

Posted on Feb 16, 2009

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Hi!!you have a problem with the video circuit board,

Posted on Feb 16, 2009

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Dear dhodge, 2-15-2009 3:26pm EST (USA)

RE: RCA L42WD250 HDTV LCD

I hope you didn't have a bad power surge while you were away!

RCA Support & Contact @ http://tv.rca.com/en-us/ContactUs.html

You may just need an software upgrade but I'd call or contact RCA 1st as they seem to have a great support site.
Read the upgrade info @ http://tv.rca.com/RCATV/RL/upgrade/14%20&%20250%20Series%20Software%20Upgrade.pdf

Hope this is Helpful!
jack
have no video everything else works properly. - 734d20a.jpg

Posted on Feb 15, 2009

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Hi, try unpluging it for an hour or so.then plug it back it. this may reset the unit-and hopefuly it will return to normal operation. also it is possible it took a surge,and messed it up i hope this helps you,all the best! glen

Posted on Feb 15, 2009

  • glenn hoffman
    glenn hoffman Feb 19, 2009

    if you have warranty go for it! glen.

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Try unplugging it for 30 mins. If it still has the problem, it may have when into protection mode.
When this happens, a part in the TV when bad. The protection mode keeps the TV from staying on to prevent further damage.
At this point, I would use the warranty on the TV.

Posted on Feb 15, 2009

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Ok, the only problem that i can think of that may have caused this disruption is an electronic pulse produced by extreme weather. when the tv was left for 2 weeks plugged in, it may have received an electronic pulse. this can occur during a winter storm that produces ice build up on line outside the house or, an electrical lighting storm. these phenomenons can affect transformers on the light poles outside your house that will send pulses threw the plugs and into the tv set, frying the main board and producing these very results you are experiencing.

Posted on Feb 15, 2009

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Hi
you have a bad inverter ..........it tends to be problem of backlight issue.....is it working properly.......

Posted on Feb 15, 2009

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Just out of interest, do you know if there is any power getting to the TV at all? like a power indicator light?

Posted on Feb 15, 2009

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Remove all the wiring connections and also unplug the unit from main power outlet for near to 1 hour.then just connect everything as usual and in proper sockets.the wires/cables should be connected firm/tight in the sockets.adjust the settings after u connect the wires.and check out it will get reset and start working as normal.

Posted on Feb 15, 2009

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Hi and welcome to FixYa,

Normally, there should be a standby LED that is flashing to indicate that the TV is in protective mode, power is still coming in but just it won't power up. If there is no such blinking LED light, then it could mean that:

  • the breakers for the outlet where the unit is plugged has tripped; and/or
  • internal fuse of the TV has blown.
Try to unplug for a couple of minutes, plug the TV into another outlet.

Should there be LED lit, post back which, what color and the sequence of the flashing. Additionally if there is a clicking sound hear from the rear of the unit.

You might also comment if you are considering a DIY (do-it-yourself) repair which would mean familiarity with electronic components & circuitry, use of a DVM and a soldering iron as well as access to a Service Manual or at the very least a schematic diagram with voltage readings.

Good luck and thank you for using FixYa.

Posted on Feb 15, 2009

  • Louie  Role
    Louie Role Feb 15, 2009

    Appreciate the postback. Two most common possibilities then:


    • video interface/main-display board;

    • CCF (cold cathode florescent) lamps and/or inverter circuitry
    A test:


    • power on the unit and select a channel with the audio coming in;

    • with a flashlight shine a light close to the screen and towards the area where the volume level is normally displayed;

    • the flashlight has to be at an angle not directly pointed towards the screen;

    • press the volume up/down on the remote;

    • determine if there would be some semblance of the volume level albeit dark;

    • if yes, then it would be the CCF lamps (least likely) or the inverters (most likely);

    • if none, then it would be the video interface/main-display board;

    • of course all other boards/components could not be ruled out such as the power supply (it has multiple outputs), inverter/lamp controller, A/V board and others.
    If at this point that it would not be the CCF lamps or the inverters, you might be better off getting hold of a copy of the service manual or at the very least a schematic diagram with voltage readings. Referencing either would give you a go/no-go while measuring voltages at specific test points.

    Cheers.


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That sounds like a bad power supply, try a different outlet.

Posted on Feb 15, 2009

  • Ginko
    Ginko Feb 15, 2009

    Try a different outlet, if the TV does not start at all then it is a bad power supply, probably a storm while the TV was off.

    The part must be tested and replaced

    You find replacement here.


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