Hitachi UT42X902/D8MW Service Manual page 19

D8mw chassis lcd display panel
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(4) Set the aspect to full mode.
(5) Set the color analizer (CA-210) at the center of the pan-
el.
Adjustment procedures
(1) Enter the Service mode.
(2) Check that the adjustment items no. 0, no. 1 and no. 2
of the Service Mode menu have the next initial values. If the
initial values are different, set them as the following data.
No. 0 = 230
No. 1 = 230
No. 2 = 240
(3) Receive the white raster signal. Step down two (or only
one) of either of the R DRV_COOL, G DRV_COOL or B
DRV_COOL adjustment parameters and change to the
following values
(NOTE: At least one of the adjustment parameters should
remain in the initial data value).
Specification
Video Color Temperature (Cool)
x = 0.266 ± 0.005
y = 0.270 ± 0.005
14000K ± 0MPCD
REMARKS
(1) Color temperature should be adjusted under the condi-
tion in which the screen is the brightest, thus, the initial value
of the adjustment is set at its maximum.
This adjustment only decreases brightness.
(2) Beware, there is RESET in each picture mode.
(3) When the adjustment items no. 6, 7 or 8 are selected, the
color temperature of the picture changes to warm mode.
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4.2 Normal Mode.
Adjustment preparations
(1) Adjustment signal: HDMI 1080i
Signal pattern: White raster
Video level: 90%
(2) Picture settings: Factory setting. Check that the mode is
set as the factory shipping conditions.
Picture mode: Dynamic.
(3) The color analyzer (CA-210) should be verified by a
spectrum radiation brightness meter such as the CS-1000
or standard LCD.
(4) Set aspect to full mode.
(5) Set the color analyzer (CA-210) at the center of the pan-
el.
Adjustment procedures.
(1) Enter the Service mode by following the procedure in
section 1.1.
(2) Check that the initial data of the adjustment items no. 3,
4 and 5 are in the following values. If their initial values are
different, change them as shown.
No. 3 = 224
No. 4 = 224
No. 5 = 224
(3) Receive the white raster signal. And decrease the value
of any two (or only one) of the R DRV_NORMAL, G DRV_
NORMAL or B DRV_NORMAL adjustment parameters in or-
der to get the X/Y coordinates to the following values.
Video Color Temperature (Normal)
x = 0.285 ± 0.005
y = 0.293 ± 0.005
9300K ± 0MPCD
REMARKS
(1) Color temperature should be adjusted under the condi-
tion in which the screen is the brightest, thus, the initial value
of adjustment is set at its maximum.
(2) Beware there is RESET in each of the picture mode.
(3) When the adjustment items no. 6, 7 or 8 are selected, the
color temperature changes to warm mode.
18
Specification
D8MW

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