AOC L19W661, Руководство по обслуживанию

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19’’ LCD TV AOC L19W661
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7. White Balance, Luminance Adjustment
TV mode display adjustment
General set-up:
Equipment Requirements: Minolta CA-110 or CA-210 or Equivalent Color analyzer Fluke 54200 or equival
TV RF signal generator
Input requirements:
Input Signal Type: CVBS-NTSC signal.
1. Set to NTSC system, frequency=187.25MHZ (for NAFTA model), with White pattern of 100%
2. Select Auto picture to Personal mode and check the x, y data.
Input Signal Strength: 10mV (80 dBuV) terminal voltage.
Input Injection Point: TV Tuner input
Alignment method:
Initial Set-up: Set Auto picture as “Personal”(Brightness=50, Color=50, Contrast=50) and check Factory
“SP_MODE_PWM “ for Personal/Rich=205, Nature=170,Soft=115, Power Save=40.
Apply “100% Full White/100IRE ” pattern by TV pattern generator.
Alignment: Adjust the factory “CLR_TEMP_R / CLR_TEMP_G / CLR_TEMP_B” to NORMAL, COOL and
WARM color temperature requirements.
[Enter factory mode: press MENU + Numeric keys “062596” + MENU key]
Output Detection Points: Screen center.
1. Check (X, Y) co-ordinates as below:
Table 1: Reading with Minolta CA-110 (CA-210).
2. Check the gray pattern should be distinguished and color bar is correct.
Check Luminance Note: Use Minolta CA-110 for colour coordinates and luminance check. Luminance typical
300 Nits, Min. > 230 Nits .In the center of the screen when ‘Auto picture’ at ‘PERSONAL’, and Brightness and
Contrast control set at 100%.
PC mode adjustment
General set-up:
Equipment Requirements: PC signal / Color analyzer. (“Auto” will be done every time switching to PC mode
and mode change)
Input requirements:
Input Signal Type: PC R/G/B analog TTL separate Sync signal. Timing = 1024x768/60Hz.
Input Signal Strength: 700mV.
Input Injection Point: D-Sub
Alignment method: TBD
Initial setting: Check factory “ VGA_PWM_MIN “ =15 and “ VGA_PWM_MAX “ = 205, then run Factory
“ AUTO_COLOR” with 5 white block pattern. See pattern 1
Normal/ (6500
°
K) Warm/(5800
°
K) Cool/(8500
°
K)
x (center) 0.314 ± 0.005 0.326 ± 0.005 0.291
±
0.005
y (center) 0.324 ± 0.005 0.336 ± 0.005 0.302
±
0.005