Sanyo LCD-22XR9DA, Service Manual

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4.1.3 ADC correction in D-SUB channel
a) Switch to D-SUB channel
b) Press” SOURCE”, then press “2, 5, 8, 0” in turn to enter the level one factory menu.
c) Move the cursor to “ADC ADJUST” and press OK to enter the sub-menu.
d) Input D-SUB signal (VG-848 Timing:856(1024x768/60Hz), Pattern:920 8step Gray). Move the
cursor to “MODE”, press and to select “RGB”, move the cursor to “AUTO ADC” and press
OK to adjust automatically till display “success”.
4.1.4 ADC correction of Component channel
a) Switch to Component channel.
b) Press” SOURCE”, then press “2, 5, 8, 0” in turn to enter the level one factory menu.
c) Move the cursor to “ADC ADJUST” and press OK to enter the sub-menu.
d) Input Component signal (VG-848 Timing:969(PAL), Pattern:918 100% color bar). Move the
cursor to “MODE”, press and to select “YPbPr(SD)”, move the cursor to “AUTO ADC” and
press OK to adjust automatically till display “success”.
e) Input Component signal (VG-848 Timing:972(1080i), Pattern:918 100% color bar). Move the
cursor to “MODE”, press and to select “YPbPr(HD)”, move the cursor to “AUTO ADC” and
press OK to adjust automatically till display “success”.
4.2 White balance adjustment
The default of color temperature of COOL is 12000K and the coordinate is (272, 278); color
temperature of NORMAL is 9300K and the coordinate is (285,293), color temperature of WARM is
6500K and the coordinate is (313,329).
4.3 Adjustment steps
Before the white balance adjustment, please let the unit working at least 30 minutes and at a
stable situation, use BBY channel of the white balancer CA-210 (19” for example).
a) Switch to HDMI channel;
b) Press” SOURCE”, then press “2, 5, 8, 0” in turn to enter the level one factory menu.
c) Move the cursor to “W/B ADJUST” and press OK to enter the sub-menu.
d) Input HDMI signal (VG-848 Timing:856(1024X768/60Hz), Pattern:921 16 step Gray). Move the
cursor to “MODE”, press and to select “HDMI”, move the cursor to “TEMPERTURE” and
press and to select “COOL”.
e) Fix G GAIN, adjust R GAIN, B GAIN and let the color coordinate of the thirteenth scale be
(272,278).
f) Fix G OFFSET, adjust R OFFSET, B OFFSET and let the color coordinate of the forth scale be
(272,278).
g) When adjusting, please keep the color temperature of high light to be X=272±5, Y=278±15 and
the low light to be X=272±8, Y=278±30;
h) Move the cursor to “COPY ALL” and copy the data to the other channels (except DTV);
i) Check if the color temperatures of NORMAL and WARM are up to the mustard (NORMAL high
light acceptable error: x±10, y±15, NORMAL low light acceptable error: x±10, y±25; WARM high
light and low light acceptable error: x±10, y±10), if not, adjust R-GAIN/B-GAIN/R-OFF/B-OFF.
j) Check the white balance of other channels, if they are not up to the mustard then adjust and
store the data separately.
k) Select DTV channel and 16-level gray scale signal.
l) Press “SOURCE” and “2, 5, 8, 0” one by one to enter the level one factory menu.
m) Move the cursor to “W/B ADJUST” and press OK to enter the sub-menu.
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