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Hi, We've just had a power cut (of around 5 seconds) and now my Evesham LCD TV will not display. The power light comes on in a sequence of pale red, bright red and then stops on green - the remote does nothing and there is no sound or picture. I have tried unplugging everything and reconnecting after a few minutes with no joy. Any advice would be much appreciated! thanks!

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  • retrodan16 May 31, 2008

    Apologies for not responding sooner, we went on holiday the next day! I have tried all of the above with the exception of opening the set up, unfortunately there was no change in the lack of response from the TV. I did get a change in the sequence of lights at start up, but it still wouldn't fire up.
    Yesterday I called a repairman who has taken it away to have a look and give me a written report as to his findings (I've been advised to do this from my vendor and they will cover the costs).
    I will receive the report on Monday and I will update the thread with the findings and what to do next for the best, and I'll rate the thread if we have any joy!
    Thanks again, your advice has been very helpful so far!



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1. Try this - hold the menu button down for 10 seconds. TV should power up; you will have to turn off front panel buttons on menu.

2. You can also try plugging in the TV through the USB on its panel to a computer or USB charger, and it may work. However, this is only a temporary solution.

3. Powering down the set or putting it in standby may have allowed the power supply to cool. Weak capacitors often go out of spec when they cool, thus preventing a section of the power supply from firing up properly again. There is a simple trick...just warm the back of the TV with a hair dryer for 5-7 mins after you have unplugged the TV. Look for the little areas of holes in the back panel of TV. Use these as your guide at where to use the hairdryer, but don't hold the dryer too close (say 5-6inches away). (Make sure the dryer is on High heat). If the TV doesn't turn on after you have heated it up (like it tries to come on but then turns off) you need to unplug the TV again, this resets it. And repeat those steps till it works. Resetting the TV after it fails to turn on is the key. Also, just leave the TV on. Don't turn in off. Since it is LCD, it doesn't take much power...only a few bucks extra a month for your utility bill.

4. A circuit board may crack about some of the larger components mounted on it. You can inspect the PCB's for fractures, and then repair them. It may also be poor soldering that has failed. I would be checking for these things first.

5. If you want to go in for a long term solution, you can easily replace the whole power board or just change the faulty capacitors. You will have to open the back panel and take a look. You can make out which are faulty, because their caps will be swollen on top. Here's a sample pic (not same model):
Hi,
We've just had a power - 7b5174a.jpg
Check the specifications of the faulty capacitors, and get the replacements from your local electronics shop. If you are comfortable with this, you can use a pair of needle nose pliers to G-E-N-T-L-Y pull out the defunct capacitors. Once that is done, solder in the new capacitors carefully. If are unsure how to do this, try to get a friend who knows how to do this kinda stuff do it for you, or get a qualified technician. Warning: If you do not have a background in electronics repair, or are inexperienced, get a qualified technician to do it for you.

REMEMBER there are very dangerous voltages inside a TV that can KILL. Be sure to work SAFE when dealing with electricity. DISCONNECT THE POWER BEFORE YOU DO ANYTHING.

Hope that helps!

If your issue is not resolved, please do not assign a rating just yet. Please post back as to what steps you took, results, etc, and I will try to assist you further as best I can. I am here at your service.

P.S. - You can rate a solution with one of four ratings as explained under (remember that at times a bit of to and fro dialogue may be necessary to resolve an issue).

  • "FixYa!" - The solution provides great advice on how to solve the problem.
  • "Helpful" - The solution provides useful leads that helps solve the problem.
  • "Thanks for Trying" - The solution does not solve the problem but the effort is appreciated.
  • "Inappropriate" - The solution has absolutely nothing to do with the problem.
Thank you for using FIXYA!

IrishDruid

Posted on May 12, 2008

  • Swilin Sampson
    Swilin Sampson May 31, 2008

    Hello,





    This thread has gone 14 days or more without a response.
    Please close the thread with a “FixYa” or “Helpful” rating.





    Or post back with latest developments, what steps you took,
    etc. and I will assist you further as best I can.





    Thank you.


    IrishDruid




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