Question about LG Flatron L1715S 17" LCD Monitor

4 Answers

LG L1715S TFT power issue

Hi,

I have an LG 1715S, just out of warranty. Suddenly a few days ago the screen went blank, and now if I turn it on and off again the picture flashes up for less than a second, then goes again. I've noticed that the screen is in fact still on, just very very dark.

I've opened it up and checked the power board for leaky/bulging caps and broken solder but can't find anything obvious. What I did see is a kind of light sooty deposit on the casing behind the power board. It's kind of under a big square black and yellow component (don't know what it is!).

Any ideas?

Thanks,
James

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  • 2 more comments 
  • HaukurN May 07, 2008

    I have a similar problem after an electric power failure. Monitor flashes a second after being powered on and then goes black.

  • Donny Lowe May 25, 2008

    I have an LG 1715S, just out of warranty. Suddenly a few days ago the screen went blank, and now if I turn it on and off again the picture flashes up for less than a second, then goes again. I've noticed that the screen is in fact still on, just very very dark.

  • Anonymous Aug 24, 2008

    I have the same problem..
    Any solution?


  • Anonymous Dec 13, 2008

    I have the same problem, however to 'fix' it all i have to do is reboot the PC (which does not affect the power supply of the monitor) and its fixed.

    makes me think possibly a driver issue????

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Change out C202- 680 uF 25 Volt electrolytic capacitor. Replace with 25 volt or higher. Observe proper polarity when replacing cap: (-) goes to the side with the black mark, check old cap before removing it to see. I just fixed the same monitor today.

Posted on Oct 16, 2009

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Change the capacitors,680 uF 25 v for 680 uF 35 v and the mosfet

Posted on Sep 30, 2009

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  • 10 Answers

Call the manufacturer and buy an new power unit. It will cost you about $50.

Flatron L1715S
Product Code: L1715SN.ALUSB
MODEL NO: L17SN-5
AI-0066.PCB REV:I power supply
REPLACEMENT PART NUMBER: 6871TPT312B

I had the same problem. Reading up on the issue on the internet, i got the idea that their old power unit had some problems, so many unit went bad, and I have seen many of the same complaints. I have decided to take a risk and made an order. They have fixed the problem with the new power unit they offer. I have replaced the old (broken) unit with the new onw and voila, the monitor works again. It is a really simple switch too, only a couple of screws and a few connectors. Very easy to do.
I hope this helps.
Thadson

Posted on Oct 15, 2008

Buy another....

Posted on May 03, 2008

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