I guess the subject explains my problem very well :)
I have a Symphonic "27 flat screen
Even though I decreased the brightness to the lowest value the picture is still extremely bright and those horizontal white lines are still there :(
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Below are instructions to adjust brightness on HP laptop
Press the "Fn" key with the computer turned on and hold the key.
Press the "F7" or "F8" key on some HP laptops, which are
printed with a small sun icon on the key. The sun icon is filled on the
function key for dimming the laptop. The other key is printed with a
hollow sun icon for brightening the screen.
Press the "Fn" and left arrow keys together on some HP
laptops to turn down the brightness. The "Fn" and right arrow key will
increase brightness. Press and release the right arrow key repeatedly,
while holding down "Fn," to decrease the screen brightness slowly, or
hold the keys to darken the screen as low as the setting will go.
For HP Monitors
Press and hold the down arrow key on the front panel of the
monitor below the screen to turn down the brightness on the external
monitor to the lowest setting.
Repeatedly press the down arrow button to dim the monitor gradually.
Press the up arrow key on the monitor to increase brightness.
By following these steps u can adjust the brightness
Press "Menu" on your LCD's display panel (usually below the screen). Various display options will be shown on the screen.
Select brightness from the options. This is usually indicated by a sun. Use the "+" and "-" buttons on your display panel to increase or decrease brightness.
Select contrast from the options. This is usually indicated by an oval half black and half white. Use the "+" and "-" buttons on your display panel to increase or decrease contrast.
Decrease Brightness (fn+f7) The fn+f7 hotkey decreases the brightness of the notebook screen. The longer you hold down the fn+f7 hotkey, the more the screen dims. Decreasing screen brightness conserves power.» To increase screen brightness, press the fn+f8hotkey.
Increase Brightness (fn+f8)The fn+f8 hotkey increases the brightness of the notebook screen. The longer you hold down the fn+f8 hotkey, the more the screen brightens.» To decrease screen brightness, press the fn+f7hotkey.
Most cameras have a function where you can decrease or increase the brightness of the flash. I, too, had that problem on the built-in flash on the Nikon D40, so I toned it down to -1 power, which illuminated the subject but didn't wash out. Also, if you're shooting an external flash, try toning the ISO settings on the flash to a lower number or decreasing the power. Also, angling the flash away from the subject slightly helps a great deal.
I dont think it's worth getting a repair man to come fix a Symphonic TV... honestly, they are problem prone... and It would cost much less to just buy a whole new one. I have a symphonic tv with no remote, and now, I cant switch into game mode! It's like they designed their tv's to be crappy!