Hitachi 42EDT41A, Service Manual

Page: 54 / 89

54
PW1A
33
Item
Adjustment Preparations
This adjustment should be
done after video color
temperature adjustment.
Set into Factory Adjustment
mode.
Input : RGB2 [D-sub]
Signal : VGA (75) 0.7V
(No set up)
Window ratio : 100%
Confirm that the screen
size is ‘Full’ .
(1)
(2)
(3)
(4)
(1)
(2)
(3)
(4)
Perform the following adjustment
with the remote control.
Set the CRT color analyzer (CA100)
at the center of the panel.
Ensure that the adjustments No. 12,
13, 14 are all set as 224.
After receiving PC signal, step down
the two (or one) among adjustments
No. 12, 13, 14 and adjust the value
as shown below.
At least one of the data should be 224.
< Specification >
PC color temperature (Cool)
x=0.268±0.005
y=0.283±0.005
(Color temp:12000°K±10MPCD)
Environment 20 lux or less
Color temperature should
be adjusted under the
condition in which the screen
is the brightest, thus the
initial value of adjustment is
it’ s maximum value.
Only reducing the brightness
controls the adjustment, thus
weaken the brighter color to
adjust.
Color temperature is at Cool
mode while the following
No. is selected.
Adjustment No. 12, 13, 14
Adjustment Procedures
Adj. point I
2
C
Remarks
PC Color Temperature Adjustment
(5) Write adjustment value of video color temperature to the following NO.
Video Color Temperature PC Color Temperature
No.3 Data No.15 Data
No.4 Data No.16 Data
No.5 Data No.17 Data
No.6 Data No.18 Data
No.7 Data No.19 Data
No.8 Data No.20 Data
No.9 Data No.21 Data
No.10 Data No.22 Data
No.11 Data No.23 Data