What is IRE for TV calibration? What does it mean?

Question

I have a TV and I was to input these settings into it that i found on the web.

Method: 10 point IRE
IRE: [Red, Green, Blue results, respectively, for each IRE point]
100 [50, 40, -50]
90 [1, 33, -50]
80 [9, 32, -50]
70 [-3, 6, -48]
60 [-1, 4, -34]
50 [-4, -4, -38]
40 [-5, 0, -26]
30 [5, 9, -13]
20 [4, 9, -6]
10 [0, 9, -6]

what does this exactly mean and how do i input it into my TV exactly? thats.

Answer 1

Well FIRST you need a Colorimeter (or a guy with the equipment)



Next you NEED to access the TV's WB service page (Ancient Chinese Secret!)



THEN you might even have to Find a GAMMA page (depends on the manufacturer's Secret Service Page of Secret Service Settings)



Why is it SECRET?



Because if you MIS-ADJUST just ONE ouf of 700 + adjustments, you can CRIPPLE your TV set so bad that the only thing a TV service man can do for you is to replace the EEPROMS that hold the Secret Service Codes....



By the way...most LCD and Plasma TV sets were Calibrated by a machine that does that job at the manufacturer anyways....isn't it a little REDUNDANT to be TRYING to do it yourself?

Even when the salesman ATTEMPTS to sell you the color Calibration for $400, you should not get it done right out of the box...



ONLY Plasmas and CRT projection TV set need calibrated....AND only after you have used if for at least 3 to 5 years !!



Me, I just RE-Calibrated my CRT projection TV after 2 years, and I have the equipment to do it...



Right out of the box it's ok...And LCDs and DLPs NEVER require CALIBRATION....NEVER! The Worst they need to color-correct is a user-replacable LAMP job.



So...do you really WANT to do this to your TV set? If so, make a note of the ORIGINAL numbers, and WHERE you went into the service menu, and WHAT you adjusted, and WHAT you did LAST before the TV stopped working.



Then you may only get charged $400 to fix it....instead of $800./

Answer 2

This Site Might Help You.



RE:

What is IRE for TV calibration? What does it mean?

I have a TV and I was to input these settings into it that i found on the web.



Method: 10 point IRE

IRE: [Red, Green, Blue results, respectively, for each IRE point]

100 [50, 40, -50]

90 [1, 33, -50]

80 [9, 32, -50]

70 [-3, 6, -48]

60 [-1, 4, -34]

50 [-4, -4, -38]

40 [-5, 0, -26]

30 [5,...

Answer 3

Ire Definition

Answer 4

Those numbers represent the brightness levels generated by the videeo signal analog voltages. 0 = lowest voltage (ususally 0) and 100 = highest voltage (usually 1.0 v). Pure white is 100 IRE. Black level is usually 7.5 IRE (0.075 V) and the sync signals are "blacker than black" (lower than 0.075 v, usually 0 v).



To get signals that you want you must either use a video signal generator or DVD that displays a calibrated gray scale and indicates the IRE for each level. One such disc is DIgital Video Essentials, available from Amazon.com

Answer 5

IRE stands for International Radio Engineers.... im not sure on how to do your TV but i found this site if you'd like to look into it. check it out.http://www.audioholics.com/tweaks/calibrate-your-system/grayscale-calibration-of-home-theater-televisions

number 3 is IRE and there on hope this helps somewhat



EDIT also check this someone with your question almost http://www.avsforum.com/avs-vb/showthread.php?t=1038908

Answer 6

IRE refers to the gray input level when you test a TV.

For example, black is at 0 IRE for component, and in the US black is at 7.5 IRE. You need a "source" that outputs different patterns at different IRE values. You also need a camera or coloremeter to measure the output of your TV and adjust as needed.