Sanyo LED-22XR10F, Руководство по обслуживанию

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（
272
、
278
）
;
f) Adjust items “
R-OFFSET
,
G-OFFSET
,
B-OFFSET
” to set chromatic coordinates of
4
th
scale as
（
272
、
278
）
;
g) During adjustment , make sure that chromatic coordinates errors of bright scale and dark scale
are both (
X=272±10 Y=278±10
);
h) Move cursor to item “
COPY ALL
” again to copy data of white balance to other channels except
DTV channel;
i) Check if chromatic coordinates of “
HDMI NORMAL
” and “
WARM
” meet the requirements or not,
if not, adjust items “
R-GAIN/B-GAIN/R-OFFSET/B-OFFSET
” to meet them:
chromatic coordinates errors of bright & dark scales are both (
x±10, y±10
),
j) Check if “
COOL
,
NORMAL
,
WARM ”
chromatic coordinates of other channels meet the
requirements, if not, adjust them respectively with the same method as HDMI channel’s and by
using 16 grey step signal all, exit menu “
W/B ADJUST
” after completing adjustment, the data will
be saved automatically;
k) DTV channel adjustment: switch to DTV channel, select 16 grey step program, enter into factory
menu, adjust white balance followed by steps e), f), g);
l) Please refer to the adjusting rules as follows:
B
Gun: coordinates of
X
and
Y
will increase when
B
gun is adjusted downwards;
coordinates of
X
and
Y
will decrease when
B
gun is adjusted upwards;
R
Gun: adjusting
R
gun will effect coordinate of
X
, and value of
Lv
slightly;
coordinate of
X
will increase when
R
gun is adjusted upwards;
coordinate of
X
will decrease when
R
gun is adjusted downwards;
G
Gun: adjusting
G
gun will effect coordinate of
Y
, and value of
Lv
greatly;
coordinate of
Y
will increase when
G
gun is adjusted upwards;
coordinate of
Y
will decrease when
G
gun is adjusted downwards.
4.4 Auto white balance adjustment
4.4.1 Block diagram as Fig. 3:
Fig.2 System block diagram
RS232
VG848
Special USB to Mini
CA210
USB to RS232
Optical
probe
Test signal
PC