Question about Westinghouse L2046NV Monitor

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I have a problem with my l2046nv monitor. It turns on, flashes and stay dark, you can however see the picture but it's VERY faint (flash light helps). I turned it off and on.. it would turn on and show a picture, but then a second later just go black... the green power button is on and green. I keep turning it on and off..... I do it about 20 times and ... it stays on but it’s still so annoying to do this. Is there a way to fix this problem? Thank you for any help you can provide!

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  • Louis Ebert Oct 14, 2010

    julianny, Problem not new!!!! You will need solder wick. solder, soldering iron(pencil) and do some reading in the FIXYA PROFILES of "budmrtn" "buddymc" "12fixlouie" and other monitor tech's here on fixya who already know what's wrong and have repaired hundreds of units with same exact or very similar symptoms. Also visit YOUTUBE for video clips using search terms: "lcd monitor disassembly" and "lcd monitor repair" !!!! At least you were smart enough to use flashlight to determine state of monitor's switch-mode-power-supply! +5v working, +12v in shutdown or very "out of specification. Just do your research! If lucky, you might repair for less than $10 on DIY basis. If this response helpful, rate on fixya for me. 12fixlouie

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Look for bad caps with leaking/bulging tops or seals first.
If you are going to DIY and have proper tools and know safety precaution then please read on:
Most common failures in the LCD monitors are bad capacitors (bulging top/seal or leaking) in the power supply (they should be replaced in a set), blown fuses; poor solder joints, failed inverter circuits (blown fuse, shorted transistors, shorted/open transformers), bad lamps (poor solder connections or worn out lamps). You will need to open it up and inspect the inside, see example of failed monitors to get some ideas what to look for: http://s807.photobucket.com/home/budm/allalbums
Post back what you see inside so we can guide you further and it will help out other people in the future also.

Basic LCD monitor troubleshooting guide:
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting

http://en.wikipedia.org/wiki/Capacitor_plague

Capacitors kit: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you.

Posted on Oct 14, 2010

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