My TV does this strobe light effect when ever there is a white scene like snow on the ground or ticker tape news bar. What board or component do I need to replace to fix the problem.

Back - light problem. Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis.
http://electro-medical.blogspot.com/

To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement. To some models sets, the back-light inverter and SMPS section circuit will be integrated at its main board itself. If so; the main board should be replaced. To some models of sets, all these section circuit will be integrated at its main board. If this is the case, you have to replace the main board.

42" Vizio TV flickering strobing easy way to repair VW42L ...

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42" Vizio TV flickering strobing easy way to repair VW42L HDTV10A LCD TV ... EASY How to Fix Samsung LCD TV Flashing Flickering Screen!Missing: vp422hdtv10a ‎snow

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If it is a fairly cheap unit there may not be an area where you can adjust the speed of the turn table
on better machines there is a variable rheostat where by you can adjust turntable speed
quality machines will have the edge if the turntable marked with what looks like bars
This is not decoration but when viewed under a light bulb will appear as stationary bars when running at the correct speed or as a blur when at the incorrect speed
It works like this
the bars are in effect a strobe that is affected by the light frequency or power hz so that when the strobe affect is exact the bars appear stationary
( like disco strobe )
so if your player has these bars on the edge , then check the actual speed with a bulb light Remember stopped bars is exact speed
If the turntable doesn't have these bars then most good home entertainment shops will have a paper plate that can be put on the turn table and the effect will be the same
other than that talk with a good radio repairer shop and have the variable control installed in the power circuit for the turntable motor .

I've fixed several of these, easy fix, you will need to replace both 470uf 35 volt capacitors on the master and slave inverter boards. So you will have to replace a total of 4 capacitors. The capacitors themselves are about 50 cents a piece. The inverter boards are on the far left and far right of the set. You will have to remove the back cover to see them. If you don't have the ability to replace the capacitors, you can just order new inverter boards for $40-$60.

EV compensation is "Exposure Value compensation". The camera contains an exposure meter which determines how much light is on the scene and sets the exposure appropriately. However, this meter does not know WHAT you're taking a picture of, nor does it know what effect you're going for. The best it can do is to assume you're taking a picture of an "average" scene and want it to be of "average" brightness. It does this by assuming the scene is "middle gray," halfway between black and white. Most of the time this works fine, because most scenes are, well, average.
However, this is not always the case. Suppose you're taking a picture of a white dog playing in the snow. Almost everything in the scene is bright white, but the camera doesn't know that. It tries to make the scene middle gray, and the result is that you get a gray dog playing in gray snow.
On the other hand, suppose you're taking a picture of a black cat sleeping on the hood of a black car. Here everything is black, but the camera doesn't know it. It tries to make an average scene, resulting in a gray cat sleeping on a gray car.
EV compensation allows you to override the camera's exposure setting. In the first example, you'd want to add two or three stops (positive EV compensation) to force the camera to render the dog and snow as white instead of gray. In the second example, you'd want to subtract a stop or two (negative EV compensation) to render the cat black instead of gray.
How much EV compensation is correct? Well, that depends on the scene. With a digital camera, you can look at the picture and see whether the dog looks white or the cat looks black. Film photographers take lots of shot, using various levels of EV compensation, so that one of them would come out right.

That is the sustain and buffer boards. Try to find a repair shop to repair on the component/board level because the cost of new boards out weighs the replacement cost.

Best Regards,
Beach TV Repair

Sounds like you have an LCD tv with backlight problems. Check power board for domed capacitors and replace them. next check connections on the inverter boards. they are on the sides or just one side. Becareful there is high voltage output from these boards. If the cable from inverter board is not good to the screen you can get a strobing. the inverter boards may need replaced. or cales to screen may be bad. The panel also could be bad.

Well, if there are no color lights on this strobe effect, a fairly standard color code for AC is Black is HOT White is Neutral, no insulation is ground and Red would power your strobe ( I Think )., I would hate to misinform you. Is this an AC powered strobe? Like when you wire up a ceiling fan you have the same color code. I'm sorry I can't help you further, and messing with live AC can be unsettling.

y sustain board needs adjusting or replacing

Hi. Sounds like DRY JOINTS WITHIN DFS MODULE. This is a pcb within a rectangular metal screened box on the left hand side of set when looking from the front. Will need resoldering be carefull very fine print will need decent soldering iron with fine tip & poss magnyfying lamp to aid looking. If your not at all sure take to repair shop. This TV is nice set has one of the best crt pictures you can get.