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LG Computer monitor stopped working

Hi,

On Tuesday, my computer and monitor were working fine. I pushed the power button on the monitor to turn it off for a while and make the room darker, but I left the computer on. The next morning, I pushed the power button on the monitor again, but it would not turn on. I unplugged it, plugged it in again, tried a new outlet... but nothing is working. I just can't get it to power up at all.

It is less than two years old. The model is LG FLatron L1732TQ-BF. Might it have a fuse or something? Would turning it off like that affect the power cable somehow? Any tips?

Thank you,
Natalie

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3 Suggested Answers

romsky79
  • 822 Answers

SOURCE: Computer monitor screen stays black

check secondary power supply budged capacitors and apply fresh solder. check also lamps connectors.

Posted on Jun 02, 2009

budmrtn
  • 11361 Answers

SOURCE: My model no is FLATRON L1752S-BF and serial no is

The LG Flatron L1752S is made in 2006. You can go to LG website here. I do not believe it is under warranty. http://www.lg.com/us/support/repair/support-warranty-claims.jsp

Posted on Apr 05, 2010

  • 12 Answers

SOURCE: Power problem with LG L204WT Flatron

If your LG L204WT will not power up all of a sudden, or takes long to power up, or dies after a while and it has not been exposed to lightning damage then in all likelihood the Electrolytic capacitors in its power supply has started to fail.
Unplug the unit from mains. To open it up, remove the 4 philips screws at the back. Then starting at the bottom corner use a small flat screw driver to wedge the front bezel loose. After removing the bezel the rear casing will also come off the panel. The circuitry case is taped to the panel with silver tape. Loosen the tape, lift the power supply. Carefully unplug the two sets of backlight cables, and the front panel controls to completely remove the circuitry case. Now remove the 4 screws holding the power board and then replace the following capacitors:
You can order caps from most electronic component stores.
You will need to replace:
C105: Electrolytic Cap, 47uF 50V 105 degrees C
C106: Electrolytic Cap, 1uF 50V 105 degrees C
C202,C206: Electrolytic Cap, 680uF 25V 105 degrees C
C203,C204, C205: Electrolytic Cap, 1000uF 25V 105 degrees C
You can always use a HIGHER voltage and a slightly HIGHER uF, and HIGHER temp rating but never lower.
Make 100% sure to observe the polarity when replacing the caps. Electrolytic caps have a clear negative marking stripe on the side coinciding with a black mark on the board.

Posted on Mar 23, 2013

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