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TV that turns off after a second

Skyllers -  
LinuxCool Posted messages 224 Status Member -
Hello,
I recently had a little problem with my TV
http://www.lcd-compare.com/televiseur-LIS19LCDTNT175-LISTO-19LCDTNT-175.htm

When I turn it on, it stays in standby, but as soon as I switch to a channel or change the source, it displays the image very well for a second or two, then it disappears and the TV becomes like unplugged or turned off.

I took it apart and noticed that there was a coil with copper around it making a lot of noise when I press the power button! If I press harder or softer on the power button, the noise changes.

I also noticed that this noise stops when I exit standby mode for 5 seconds (as the TV takes a long time to exit standby to display the image) and starts again when the image appears for 1 second before finally stopping completely.

Everything is well connected and the soldering looks clean.
Do you think the coil needs to be replaced?

Thanks in advance, I don't know anything about electronics, I'm more into computers :D
Configuration: Windows 7 / Chrome 50.0.2661.57

4 answers

  1.
    LinuxCool Posted messages 224 Status Member 233
     
    If you prefer option 3, that's great! Here are my first impressions and hypotheses:

    I don't think it's a problem with the coil because it still manages to start...
    The problem is probably due to a capacitor that has burned out since the TV still turns on for a few seconds. Good news, because it's easy to repair if that's the case. :)
    1
    1. Skyllers
       
      Thank you Linuxcool! How can I identify the capacitor that has burned out?
      0