Hitachi 43FDX20B t.v. has reddish tint

You need a simple color adjustment. (Color Calibration)

You don't need to spend money on this. Try it for yourself.

Your main problem is that your color temperature is set to warm.
You need to change temperature to COOL or 6500K depending, on how it is labeled.

You will see improvement, but there is a little more...
Move "Color" DOWN from it's current position (probably at 50) to somewhere between 30 and 40. (Just a couple of clicks above where the color rapidly washes out.)

At this point there will still be slightly unnatural color to skin tones, but all the artificial "sunburn" and blaring red will be gone.

Last (as far as color goes) move the tint 2 to 4 clicks toward green. This added green tint balances the color so that the flesh tones become completely accurate and realistic.

For even better detail, continue your home calibration here:

http://www.wowvision.tv/main.htm

redish tint in what explain the problem in detail.

My 43fdx20b had a pink tint to it also. The picture was clear otherwise. I found, on mine, I needed to adjust the Red Screen control. It was located behind the front panel. I removed the two screws on either side of the front panel and was able to remove the panel. Then I adjusted the Red Screen control. I found that if I tuned in an old Black and white movie I could adjust the color fairly accurately. Good Luck.

those setting are adjustable so you can adjust to your personal preferance but reset back to factory or dynamic is good but i would suggest you play with the settings to your taste put on a newws show and asjust the briteness and contrast so you can see the seperation of a mans lapel color to just below half tint in the middle fase tone so people look naterial

The best setting are the ones you prefer the most.In general most sets are optimized for 50% on color and tint and usually 70% or more for bright and contrast.

Try these, Contrast: 53 Brightness: 56 Color: 45 Tint: 2 Sharpness: 2 
Color temperature: Off
Dynamic contrast: Off
Digital Natural Motion: Off
DNR: Off
Color enhancement: Off
Active control: Off

your light engine needs to be replaced, iv done about 20 of thease, if your under warinty, call your warinty company, if not, yhe part is around 400 dollars, it is a hard one to change yourself

Colorimetre HCFR software
AVC HD 709 calibration disk
Spyder2 colorimeter (I know most prefer the Eye-One meters, but the Spyder2 was available from my job at no cost)

Here are the settings:

PS3 Blu-Ray player

Output Format (HDMI): Y Pb/Cb Pr/Cr (important!!! NOT RGB output)
BD 1080p 24hz Output (HDMI): On (this TV can reproduce video at 48hz for accurate 2:2 pulldown)
Y Pb/Cb Pr/Cr Super White (HDMI): On (not sure if this matters)

42LG50 Settings

Aspect Ratio: Set By Program (Personal Preference)
Picture Mode: Expert 1
Backlight: 50 (Personal Preference)
Contrast: 54
Brightness: 54
Sharpness: 40 (Personal Preference)
Color: 50
Tint: 0

Fresh Contrast: Off
Noise Reduction: Off
Gamma: Medium
Black Level: Low
Real Cinema: On

White Balance: Warm
Method: 10 Point IRE

10 (-3,8,-16)
20 (15,24,-21)
30 (20,36,-22)
40 (3,19,-40)
50 (8,34,-41)
60 (10,50,-20)
70 (-5,50,-8)
80 (-16,50,18
90 (-14,50,30)
100 (-22,38,21)

Red Color: -3
Red Tint: 0
Green Color: 10
Green Tint: 0
Blue Color: 14
Blue Tint: 0
Yellow Color: 0
Yellow Tint: 1
Cyan Color: -11
Cyan Tint: 0
Magenta Color: 0
Magenta Tint: -2

Take time to get used to the settings, you may think the screen looks dull at first. The truth is most people have way too much contrast on their TVs.
These settings will also work for Cable or Dish hookups, in which case you may change the Noise Reduction option to Medium to reduce signal noise.

OR....

2POINT IRE

Backlight: 65
Contrast: 55
Brightness: 45
Sharpness: 50
Color: 45
Tint: 0

Fresh Contrast: Off
Noise Reduction: Off
Gamma: Medium
Black Level: Low
Real Cinema: On

White Balance: Warm
Method: 2 Point

Red Color: 3
Red Tint: 0
Green Color: 9
Green Tint: 2
Blue Color: -1
Blue Tint: 0
Yellow Color: 6
Yellow Tint: 5
Cyan Color: -1
Cyan Tint: 1
Magenta Color: 2
Magenta Tint: -1

well i had the same t.v. and u will have to set the picture tube which is really simple it ight seem hard but if you need an hand give me an call 1-403-362-2560 and ask for jason

It seems you might have cold solder connections on the picture tube socket or on the picture tube drive board. If your not a tech please call someone to assist you with repair as you can be seriously hurt by the HI voltage insiode this set an or cauae more problems with the set. Good Luck