Question about HP Pavilion F1703 17" LCD Monitor

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Monitor turning off and on

My monitor is going on and off repeatedly with a hummming coming from the speakers when it turns on. I never get a picture as it turns off so quickly. I tried a different cable but it still does it. Any solutions besides getting a new monitor? Thanks

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Apparently this is a fairly widespread problem in 2005 and 2006 and is caused by a backlight failure; usually bad solder joints on the backlight inverter board. HP originally extended their warranty to 20+ months but it apparently has expired since the HP pages have all been removed. This is likely to be an easy repair and relatively inexpensive job by a qualified service technician and is NOT a job for the typical user due to exposure to high voltage.

Posted on Feb 05, 2007

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Posted on Jan 02, 2017

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Hello,

If you turn the monitor off then about 1020 sec turn it back on and have a picture for five sec again it sound like the power supply in the monitor. but if that did not solve the problem, the picture board on your monitor is bad, since it goes off after few seconds and the power led or button is on, it means the picture board of your monitor has developed fault and will need to be replace.

I advice you replace the picture board on the screen of your monitor to solve the problem of the blank screen.

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Well here is a test you can do. When the monitor goes black, take a flash light and hold at it a angle towards the monitor, if you can still faintly see the image then you have a blacklight/inverter issue. Another common issue with this is the capacitors on the inside. They will also cause this. If you dont see an image then the inverter will need replacing. As the steps for replacing all of this are quite long, ill post a few helpful tuts :).

For replacing the backlight:
http://www.inventgeek.com/Projects/shorts/overview.aspx
For checking/replacing bad capacitors:
http://www.wizardanswers.com/liquidvideorepair.html

I know these arent your monitor but its generally the same idea with all of them. If this doesnt work it will be a inverter issue and if it comes to that just let me know and ill be glad to help :D


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Undo what you did & it should hopefuly work.
Next time don't be overconfident and do things that you are not sure of. It doesn't hurt to ask someone who knows. Here you are lucky to escape with this one. I've come across cases where people have ended up short-circuiting their gadgets beyond repair.

If you have the previlege of having a manual, refer it, read every word carefully and then go about doing things on your own.

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Its prob a dry solder joint problem.

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