TCL RT2841 Series, Руководство по обслуживанию

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Test and Alignment Specification for RT2841 Series (v0.01).docx
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Ensure that TV’s picture enhance is off.
Ensure that TV is in
Factory mode to access to” White Balance ” adjustment submenu
.
WB Normal is the first mode which is adjusted in HDMI source
，
the next are HDMI warm and cool mode.
Warm and Cool Tone are relatives to Normal mode. WB adjust need to fix default G Gain .Offset registers needn’t
to be adjusted.

“
Gain
” registers set need to be adjusted at 70IRE.
Note: The operation must enable factory “P” mode
￭ Automatic Gamma correction
Gamma correction, or often simply gamma, is the name of a nonlinear operation used to encode and decode
luminance or tristimulus values in video or still image systems.
You need adjust 4+3 gamma for different samples based on the color coordinates and target gamma offered by PQ
engineer. So each sample can get almost the same effect as PQ golden sample. The 4+3 gamma include 4 gamma
based on 4 different color temperature (cool, normal, warm1, warm2) and 3 gamma related to SDR to HDR (cool,
normal, warm).
For the automatic gamma correction, we can do as below, but please refer to “Gamma correction specification
(v1.00)” for detail.
▪Initialize the picture, turn off dynamic backlight, dynamic contrast, and set picture mode as computer desktop
mode;
▪ Get the color coordinates (x, y, Y) and target gamma in the PDM of the target model;
▪ Open the factory menu of TV, Open the tools SIACP and main.vi on the PC, connect the equipment correctly
(CA310, serial port, PC, TV);
▪ Fill the color coordinates (x, y, Y) target gamma, error range and time-delay in the main.vi tool that made by AOE,
and save it;