Hitachi CMP420V1 Service Manual page 31

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Video Color Temperature Adjustment (Warm)
Adjustment Preparations
(1)
Set the output of signal
generator to white raster.
(Ratio : 100%)
(2)
Component signal (480i)
Video level : 0.714Vp-p
SYNC : 0.286Vp-p
Set-up level : 0V
(3)
Set Picture MENU to
[RESET]
(4)
Set into Factory adjustment
mode.
CMP420V1/CMP420V2/42EDT41 (PW1A)
Adjustment Procedures
(1)
Perform the following adjustment with
the remote control.
(2)
Set the CRT color analyzer (CA100)
at the center of the panel.
(3)
Set Color Temperature of PICTURE
MENU to[WARM].
(4)
Ensure that adjustment No. 6, 7, 8
are all set as 224.
(5)
After receiving Video signal, step
down the two (or one) among
adjustment No. 6, 7, 8 and adjust the
value as shown below.
At least one of the data should be 224.
< Specification >
Video color temperature (WARM)
x=0.314±0.005
y=0.327±0.005
(Color Temp:6500°K±0MPCD)
31
2
Adj. point
I
C
Remarks
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
Warm mode while the
following No. is selected.
Adjustment No. 06, 07, 08

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