Question about HP Pavilion dv9000z Notebook
Mine has the exact same problem (dv9000). just called tech support, which in my opinion has improved dramatically since earlier this year, and they told me something is loose and they will probably replace the backlight. glad i bought the extended warranty! I have a feeling that the light chassis of this laptop has something to do with it because i have had screen problems with this laptop every few months. The lid feels looser on the hinges and more fragile than my old 8000 model. If the darn thing didnt look and perform so well i probably wouldnt ever buy an hp again!
Posted on Nov 21, 2007
It would seem that you have a display panel/screen problem. More specifically the backlight. Backlight faults could be caused by either the CCFLamp or the inverter board that powers it. I would venture a guess that the buzzing you hear is the high frequency/high voltage supply of the CCFLamp.
Am not sure if warranty would be void but a look and see would be the best, which of course would mean dis-assembling the LCD panel display/screen. Again venturing a guess, it is highly possible that it is just a cold solder, loose connector to the CCFLamp or at worst capacitor overheating.
Good luck and kind regards.
Posted on Nov 08, 2007
Sounds like you have a LCD backlight going out on you, and I doubt that it will get any better. ;0(
Could be the inverter or the lamp. Only way that I know to tell is to swap out one, and if that doesn't do it, swap out the other.
If I can be of further help on this, just let me know!
(30 years as a customer engineer)
Posted on Nov 08, 2007
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Posted on Jan 02, 2017
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