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LG50LN5600--LEDs flash LG logo on startup--then goes blank. I have already replaced the power board--no change. Any thoughts?

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Posted on Jan 02, 2017

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It seems your hard drive has corupted.
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Posted on Jun 26, 2008

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SOURCE: My Acer Aspire 5100 wont start up correctly

I had the same problem after running an update to my Norton anti-virus software. When booting the laptop, press F2 to go to the setup menu. One of the options allows you to change the order that is searched when booting up. I moved the boot from hard drive to the last option, allowing it to boot from a network first (which it doesn't find), then from a portable device second (which it doesn't find), and finally from the hard drive. When I boot up, after it doesn't find the first two options, it boots from the hard drive with no problem.

Posted on Nov 12, 2008

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SOURCE: Acer AL1716 A Monitor does not start

Hello,

The problem on your monitor is a bad power supply. Because of heat buildup in LCD monitors parts called capacitors overheat and blow out. You can go to our web site at:
www.ccl-la.com/badcaps.htm and see what to look for. If you open your monitor and see blown capacitors that look like the pictures on our site then replace the bad ones and you should be back going. Email me if you have additional questions or if you need to get the capacitors, we carry them in stock.

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Posted on Aug 27, 2009

Kuwagata
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SOURCE: I have a VP201m. display flashes at startup and goes black

That's not monitor problem, it's your CPU, probably the Operating System crash!!!( Windows,etc).
Try reinstall it to solve the problem...

Posted on Oct 18, 2009

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Hi; Look into Your owners manual for troubleshooting codes. If You dont have a manual call or google the manufacturer...alpharome416

Posted on Jan 22, 2010

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This happened to our tv so we took the panel off the back and realized the power is actually still on but the screen goes black so that's why I thought it was turning off. Actually the power is ok but found that the connector cable that connects the slave 1 and 2 board is burnt. Now we just need to figure out how to order and replace those boards and the connector.

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Hi my lg tv just went blank when you put it on it flashes the lg logo then goes blank tss a 55" thank you rochelle


Back - light problem. Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis. http://electro-medical.blogspot.com/
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Lg 50ln5600 backlight issue


Check whether the back-light start voltage [control voltage] comes to the backlight inverter section of the power board; from the main board. It sounds that that voltage does not come from the main board, after the firmware has been loaded up. If so the main board will have the fault. Contact any service technician.

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Hello , so I have this problem with my tv lg 47wl5600-UA pictures, on startup the lg logo show and then goes off only for da sound can be heard with da cables box in place. I read and thought if I change...


Fault with 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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My lg 62sx4d-ub will not turn on. You push the power button, the ballast clicks, then the leds begin scrolling white. Eventually the lamp led flashes red and it shuts back down. I've changed the bulb...


I just had the same problem. Came down to a bad cap on the main power supply board C871. This is the first filter cap after the diode on the 6V supply. Funny,, the schematic calls for a 25V part,, however this one was rated at 16V :-)

Replaced with a new one,,, all is good to go!

Jer in Hayden

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