TCL 39S62, Руководство по обслуживанию

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(3)Test and Alignment Specification for NT63
Series (v0 01) 170612
Page 12 of 25
2.3. White Balance
▪
White Balance Touch-Up (Golden sample)
As some color coordinates discrepancies can be noticed from panel batches to others, it may necessary to perform
slight touch-up.
For Color temperature adjustment, switch TV on leading HDMI input where should be connected suitable generator
providing following format 1280x720p@60Hz test pattern. A 32 steps grey scale is recommended to assess relevant
colorimetry tracking and low/high light saturation points.
Ensure that TV’s picture enhance is off.
Ensure that TV is in
Factory mode to access to ”
White Balance
” adjustment submenu
, then scroll down to
toggle off “
Pic. Enhance
” flag.
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.
▪
Targets and Tolerances for all inputs
(According to company uniform LED color temperature standard of panel)
The measured and adjustable parameters should
be mainly “
x
”, “
y
” coordinates.
The White Balance alignment should be performed using a well calibrated and contact less analyzer (ex: Minolta
CA210 or CA310). The analyzer may not touch the screen surface, and measurement must be performed in a dark
environment keeping the probe(s) at 90+/-2° from the panel center.
The results should fulfill specification for each TV set offered by R&D and below tolerances::
NT72563
panel name
Energy FW Min (Nits) Preset Targets (x, y)
Model Efficient FW>Min COOL NORMAL WARM
43D2900 ST3151A05-9 A+ 250