Question about Computer Monitors

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Dell 20 inch lcd monitor 2007WFP

I accidentally plugged a class 2 transformer, 6v (to power speakers) into the back of my monitor (Dell 2007WFP widescreen), where it said speaker power. Well I only plugged the round part into the monitor, I did NOT plug the ac adapter into the wall socket, but after a few seconds the monitor started to flicker and it went out. Now the whole monitor, green light, display everything will not work. I now realize the monitor was outputing 12v dc for speakers not needing the external power like I thought and was giving it. The class 2 transformer was warm and i unplugged it but the damage is done. My question is how do I get this fixed? I took the monitor apart to look at the circuit boards and see if i could find a burnt component but no luck. The fuses seem ok on the PCB. What can I do? Can Best Buy fix this type of problem??

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Yes, If you have it sent in for repair they may be able to do it. Geek Squad would not be able to do it in the store. Although in most cases it is more costly then a new monitor. If it is still under warranty I would try and do it that way.
Good luck,
Lee

Posted on Jun 13, 2008

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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 DELL 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.

Replacement board: http://www.lcdrepair.us

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Pleasec look through my albums so you will know what to look for.

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Post back what you see inside so we can guide you further and it will help out other people in the future also.
http://en.wikipedia.org/wiki/Capacitor_plague

http://www.badcaps.net

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HOW CAN I FIT THE SPEAKERS?


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if u dont maind u have any electronics knowledge. otherwise u should used adopter. there is any problem please give me the mail

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