The screen has started flickering - LG Televison & Video

contact dell.

Try with new battery pack. It may be faulty RAM too.

Flickering, always cause by LCD cable. Change it at any computer shop or service center and its not so expensive

you need to remove main ckt, (m.board) some part need to re solder specially in hot area. (lost contact i one of the flickering problem you encountered.

The screen flickering could be the screen inverter starting to fail. The inverter sits under the screen behind the bezel, it takes the low voltage DC power from the power adapter and converts it to high voltage for the screens backlight. If the inverter starts to fail, you either get a dim display that finally goes dark or get flickering like you see in some store lighting fixtures when the flourescent bulbs are failing.

Hardware, sound like the cable that attach to LCD panel was losing...

Flickering screen display

Flickering on the screen can be caused by defective hardware in the computer or by improperly installed software, but it can also be caused by interference from external devices. The following examples describe situations in which your screen could start flickering:

• Screen starts flickering because of interference caused by devices which generate magnetic fields, for instance:
  • a TV set
  • a laser printer
  • another monitor
  • fluorescent lights
  • hidden power lines
• Apart from interference, an incorrect setting in your system CMOS setup can also cause flickering. On some systems it is possible to distinguish between interlaced and non-interlaced monitors. The setup of your system should always be colour non-interlaced.
• Proximity to the monitor of fans, air-conditioning units or other devices with rotating motors.
• The number of devices using power from the same electrical line. Are you overloading the plug?
• Monitor placed on an unstable surface.
• Improper video drivers, this is a software problem, see section B
• An improperly configured or a defective video card.

Hi there
If I understand you correctly from start up the screen is dim but does brighten up after time? But now after start up you are getting a flicker how ever a restart solves this.

On the dimming issue. Check your energy saving settings and brightness key is working OK.

The flickering is a bit of a concern.

Just a couple of questions.
Are there any dead spots on the screen? Areas where there are no pixels.
When you tilt the screen forward and backward, does this effect the brightness or flickering?

Paul

Sounds like the driver board for the backlight is going bad...is there a spot on the screen part of the case ( usually at the bottom) that feels much warmer than the rest?

maybe ur screen was put into a lot of magnetic interference. so check for any magnetic rays emitting devices like speaker adapters etc. a simple check would be to degauss( its in the screen properties). raja