Samsung ln46b550k screen flickering

SOURCE: Samsung TV flickering

This is an unusual failure of a non obvious part in the power supply putting noise into the circuitry of the TV.
you either need a competant tech to work on it or if you are good at connecting up cabling just swap out all the guts.
call Module Exchange at 972-298-1212

SOURCE: when i turn on my samsung lnt5271 the screen seems

This sounds like a repair issue. I do not believe there is any in-home troubleshooting that you can try that will fix that particular issue. I would call Samsung tech support to see what their opinion of the problem is. Their number is 800-726-7864.

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SOURCE: Samsung 226bw visible flickers just after it is turned on

You may have a faulty inverter or loose power inverter connection. OR
You may have a defective CCFL backlight, it may have the following symptom: Screen flashs on red/pink and off. Picture stays on in red and slowly be come normal. Picture flickering with dim display or appear black. Picture flickering on and off. All these symptoms indicate that the LCD backlight lamp (CCFL Lamp) has reached the end of the life and all you need to do is replacing the CCFL lamp.
Connect an external monitor to your laptop and power the monitor up first then the laptop, if you see the normal Windows images then the video card and laptop is OK and the problem is definitely the backlight. Dim image and/or dark display on the laptop's LCD screen indicates a faulty LCD backlight and it could be the inverter that supplies high voltage to the CCFL lamp or it is the CCLF lamp is nearly burnt out or burnt out, most likely this is the case.
The inverter can be replaced easily but the CCLF lamp is more time consuming and requires soldering skills.
Check out
www.lcdparts.net

SOURCE: Samsung DLP 42" flickering green screen

Just unplug and plug back in. Worked for me.

Try it a few times.

May not work for everyone.

SOURCE: RCA 37" FLAT SCREEN NON STOP FLICKERING/FLASHING SCREEN

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.