LG 42LB550A, Руководство по обслуживанию

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(2) Medium / Warm Mode
1) Purpose : Adjust the color temperature to reduce the
deviation of the module color temperature.
2) Principle: To adjust the white balance without the saturation,
- In Medium mode, Fix to G gain to 192 and change the
others(R/B Gain)(20LB45X model)
- Fix the one of R/G/B gain to 192(default data) and
decrease the others.
3) Adjustment mode : Two modes - Medium / Warm
5.6. Reference(White Balance Adjustment
coordinate and color temperature)
(1) Luminance: 204 Gray, 80IRE
(2) Standard color coordinate and temperature using CS-1000
(over 26 inch)
■ The spec of color temperatre and coordinate.
* Note : x,y coordinates are drifted about 0.007 after 30 mins
heat-run. So checking color coordinate within 5-min at
total assembly line, consider x,y coordinates might be
up to 0.007 than x,y target of each color temperature.
● W/B Table in process of aging time
- LGD Module
- AUO/ INX/ COST/ SHARP/ BOE Module which cool spec is
13000K
6. Tool Option setting & Inspection per
countries
(1) Press 'IN START' key at Factory Service remote control.
(2) Select 'Tool Option 1'.
(3) Punch in the number and press 'OK'. (Each of models has
their number)
(4) Correct 'Tool Option2' ~ 'Tool Option5'.
(5) Completed adjusting Tool option.
7. Ship-out mode check (In-stop)
▪ After final inspection, press In-Stop key of the Adjustemnt
Remote Control and check that the unit goes to Stand-by mode.
8. AUDIO output check
8.1. Audio input condition
(1) RF input: Mono, 1 KHz sine wave signal, 100% Modulation
(2) CVBS, Component: 1 KHz sine wave signal (0.4 Vrms)
8.2. Specification
Mode Color Temp Color coordinate Remark
Cool
(C50)
13,000 K
x = 0.271 (±0.015)
y = 0.270 (±0.015)
* Test signal
- Inner pattern for
W/B adjust
- External white
pattern (80IRE,
204gray)
Medium
(0)
9,300 K
x = 0.286 (±0.015)
y = 0.289 (±0.015)
Warm
(W50)
6,500 K
x = 0.313 (±0.015)
y = 0.329 (±0.015)
Item Min Typ Max Unit Remark
(normal line) March ~ December
cool med Warm
x y x y x Y
spec 271 270 286 289 313 329
target 278 280 293 299 320 339