[Q] My BA makes strange HF noise

[bancina]

I have a small problem with my BA. Somehow it started making some strange high frequency (buzzing) noise. Before last few days it was working very good with each ROM I installed. First I thouhgt that the source of mentioned noise is the speaker, but I was wrong. Source is in the bottom of device, somewhere beneath the screen, just above the mail button. Now, even when it just lies down on the table, screen flashes, and noise starts and some how turns off after 30, 40 seconds all by itself. Also, my battery life is reduced from two days to less than 1 day as a result of this issue. I dont know what shuld I do? Can anyone help me?

[pipedevnull]

How old is the device ?

Are there dark (or darker) spots at the edge(s) of the screen ?

Have you run the device at maximum lighting level ? - How long until the Backlight goes to powersave ? ... etc.

I assume - lacking further information - that the lighting is failing.
To my knowledge, there's a CCFL in the LCD I... that'll age over time and then show spots and flickering.

If you _can_ swap the CCFL you'll probable save your inverter ... CCFLs are relatively cheap elements (around USD 20 for 40cm which fits a 18.4" HD TFT Screen), though I have no idea how much a CCFL for the 9090 will amount to.

cf. to e.g. alibaba.com search for qtek 9090 lcd
eBay might help, too.

Good luck...

/pipedevnull