TCL LCD20V6AT, Руководство по обслуживанию, Страница: 15 / 27

2) Auto adjustment in TV/AV mode:
A. Switch to AV mode.
B. Input the Gray Scales signal.
C. Set the picture mode to Standard.
D. Enter the Basic Setting of Factory Mode to adjust Blacklight until the second dark
scale is just visible.
E. Change the input signal to H/2 White Reference signal and enter the Factory Mode.
Set Y to
250 cd/
㎡
, the method is same to that in VGA/HDTV mode.
3. Manual adjustment of white balance
1)
VGA/HDTV mode
A. Select HDTV mode, then press PRESETS key in remote control to select Standard
picture mode.
B. Input H/2 White Reference signal, then adjust white balance.
a. Cool color temperature: select cool in factory menu, and revise R, G, B gain value until
x=276±15, y=286±15.
b. Standard color temperature: select standard in factory menu, and revise R, G, B gain
value until x=284±15, y=299±15
c. Warm color temperature: select warm in factory menu, and revise R, G, B gain value
until x=305±15, y=320±15.
2) AV/TV mode
A.
Select AV mode, then press PRESETS button to select Standard picture mode.
B. Input the Gray Scales signal and adjust Blacklight in factory menu until the second
dark scale is just visible.
C. Input
H/2 White Reference
signal, then adjust white balance.
The method is same as above.
Note:
If the EEPROM is fire-new, the values are set to default after powering on. In normal
condition, it needs just a little adjustment on the base of default values.
4. Check the setting in the Factory mode:
1) Basic Setting:
Item Default Description
Backlight ** Back light
Blacklight ** Sub brightness
NVRAM Addr ** NVRAM’s address
NVRAM VAL ** NVRAM’s value
Note: Adjustment of NVRAM is done only under the necessity.
2) Color
Setting:
Item Default Description
Auto Adjust Auto adjusting ADC in PC mode
RED ** Manually adjusting ADC in PC mode.
GREEN ** Manually adjusting ADC in PC mode.
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