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I have an LG 60LB7100 TV that turn on full bright for 10 sec. and then goes dark but you can faintly see ..

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6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE:

Hi there,
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Posted on Jan 02, 2017

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  • 556 Answers

SOURCE: Picture goes dark

1 your problem is in video section 2 if it is ok then check power supply for any components defective.

Posted on Sep 16, 2007

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IrishDruid
  • 2712 Answers

SOURCE: lcd tv screen has gone

1. 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.

2. 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):
ad66cdc.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...Should you have any further questions, please feel free to post them here.

P.S. - If you find that the solution/answer I provided led you to, or resulted in a fix, please close the ticket with a FixYa! rating. I would be very grateful for your show of appreciation.
If it hasn’t, 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.

Thank you for using FIXYA!

Cheers!
IrishDruid

Posted on May 03, 2008

SOURCE: faint green discoloured screen then screen is blank

Sounds like one of your florescent tubes have died. THe power circuit is trying to start it but fails then shuts down

Posted on Jan 11, 2009

  • 19 Answers

SOURCE: LG Projection TV has dark picture

To do this, press the ENTER button on the TV and the MUTE button on the remote at the same time. After 5 seconds the screen should come up and it will read "Lamp use time...Total lamp use time ....lamp reset" Press the center button on your remote (the circle button right in the middle of the four directional buttons) and you will be reset to -0- again. Your orange light should now be off.

Posted on Feb 02, 2009

benwabnick
  • 2404 Answers

SOURCE: moniter flashes on, then goes dark. help please!

Sounds to me like its either the inverter or the lcd. If you can get the monitor apart go ahead and reseat the lcd cable cause it could be that the cable came loose during the move, it could be halfway in and halfway out.

After you do that see if the monitor works then, if not then try a different monitor on the computer, if you still get dim video with the known good working monitor then you know that the video card is bad.

If you get a good picture with a known good working monitor then you know the original monitor is bad.

Keep in mind that LCD's are sensitive and even if they get slightly hit, it could be enough to knock them out of commission.

Posted on Jul 02, 2009

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2 Answers

LG 60LB7100 was hit by a power surge(lightning) now it turns on but won't go passed the opening screen


Fault to its main board. Short circuited component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. http://electronicshelponline.blogspot.com/ . In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.

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1 Answer

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that would be a failing tcon board on the back of the screen.you would need to replace this part but they are available on ebay the part number is on the tcon board. match the numbers a version number to get the matching board for the screen. tcon board is the board were the main wire cluster goes to the screen board this is the tcon board.

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1 Answer

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Hi there...it is sounding like a backlight is going/has gone out...these can be proffesionally replacedat a repair shop...To self diagnose if it is the backlight take a flashlight and, with tv on and while on a tv channel and carefully form different angles look into the 'dark' part of the tv screen...if the/a backlight on a lcd tv/monitor goes out(even laptop screens) then u can still see a faint image with a flashlight(or without one with a good eye)....If you still see the (tv channel) image, then it is most likely a bad backlight......
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You need to get this tv service asap.i beleive that the problem is in the inverter board or yb board.


good luck

caypianan@yahoo.com

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