Acer AC511 Series Service Manual page 8

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CONTRAST
BRIGHTNESS
H-CENTER
H-SIZE
V-CENTER
V-SIZE
ZOOM
PINCUSHION
TRAPEZOID
PIN-BALANCE
PARALLELOGRAM
ROTATION
E. To switches the input signal to the other Timing Mode. Please follow step C ~ D to get the optimum
picture.
F. Select the " " RETURN function and press then the Factory Preset window will be returned to the
original OSD window.(user's operating condition)
G. The setting data of the CONTRAST, BRIGHTNESS, PIN-BALANCE, PARALLELOGRAM,
ROTATION, COLOR TEMPERATURE are common mode saved in the memory. Don't needed adjust it
individual at every timing Mode and save in the memory.
3. White Balance, Luminance adjustment:
A. Bias (Low Luminance) adjustment:
(a) Set mode 2 640×480 Fh: 31KHz full white pattern.
(b) To make the adjustment condition is under the Factory preset window.
Same as step 2-C.
(c) Warm up more than 20 minutes.
(d) Brightness
screen VR to make Y= 5.0 ±0.5cd/m²
(e) Brightness set to raster just cutoff, adjust contrast to be 4FL, then adjust G-Bias
, R-Bias
the color temperature x= 283 ± 10, y= 297 ± 10.
B. Gain (High light) adjustment:
(a) Set mode 2 640×480 Fh: 31.5KHz full white pattern.
(b) Brightness set to raster just cutoff and set the contrast to max.
(c) Adjust G-Gain
y=297 ± 10.
(d) Change to 20% window white pattern then adjust contrast to 155±2 cd/m².
C. Recheck item A&B to make sure both of them in spec. Finally select OSD function to the 9300°K
function, then press to make the setting data saved in the memory.
set to maximum. Contrast
, to make the setting value is(50), then adjust the R.G.B Bias individual to
, B-Gain , R-Gain
7
H-MOIRE REDUCE
V-MOIRE REDUCE
R-GAIN
G-GAIN
B-GAIN
R-BIAS
G-BIAS
R-BIAS
9300 COLOR TEMPERATURE
6500 COLOR TEMPERATURE
DEGAUSS
OSD EXIT
RETURN
set to min. full white pattern, then adjust FBT
, to make color temperature x=283 ± 10,
, B-Bias