Hitachi 42HDT51M, Service Manual

Page: 29 / 131

29
PT5-G/PW1-H
5.3 VIDEO COLOR TEMPERATURE ADJUSTMENT
(STD)
Preparation
(1) Same as “Video Color Temperature adjustment:
(HIGH)”. For 55” video level changes to 0.700Vp-p.
Adjustment
(1) Perform the following adjustment with the remote
control.
(2) Set the CRT color analyzer (CA-100) at the center of
the panel.
(3) Set color temperature to “STD”.
(4) Ensure that Adjustment R/G/B DRIVE (STD) are all
set as FF.
(5) After receiving White raster signal, step down the two
(or one) among Adjustment R/B/G DRIVE (STD) and
adjust the value shown below.
At least one of the data should be FF.
5.4 VIDEO COLOR TEMPERATURE ADJUSTMENT
(B/W)
Preparation
(1) Same as “Video Color Temperature adjustment:
(HIGH)”. For 55” video level changes to 0.700Vp-p.
Adjustment
(1) Perform the following adjustment with the remote
control.
(2) Set the CRT color analyzer (CA-100) at the center of
the panel.
(3) Ensure that Adjustment R/G/B DRIVE (B/W) are all
set as FF.
(4) After receiving White Raster signal, step down the
two (or one) among Adjustment R/B/G DRIVE (B/W)
and adjust the value shown below.
At least one of the data should be FF.
Remarks
(1) Same as “Video Color Temperature adjustment
(HIGH)”
Specification
Video Color temperature (STD)
x = 0.314
42"
± 0.005
y = 0.327 ± 0.005
(
Color temp
:
6500K
)
x = 0.314
55"
± 0.005
y = 0.327 ± 0.005
(
Color temp
:
6500K
)
Specification
Video Color temperature (B/W)
x = 0.335
42"
±
0.005
y = 0.343
±
0.005
(
Color temp
:
5400K
)
x = 0.335
55"
±
0.005
y = 0.343
±
0.005
(
Color temp
:
5400K
)
5.5 PC COLOR TEMPERATURE ADJUSTMENT
(HIGH)
Preparation
(1) This adjustment should be done after video color
temperature adjustment.
(2) Confirm that it’s set as factory adjustment mode.
(3) Input white raster (ratio 100%) into RGB terminals at
VGA (75) 0.7V (No set-up).
(4) Set AVC to shipment.
(5) Confirm that the screen size is ‘FULL’.
Adjustment
(1) Perform the following adjustment with the remote
control.
(2) Set the CRT color analyzer (CA-100) at the center of
the panel.
(3) Ensure that Adjustment R/G/B DRIVE (HIGH) are all
set as FF.
(4) After receiving PC signal, step down the two (or one)
among Adjustment R/B/G DRIVE (HIGH) and adjust
the value shown below.
At least one of the data should be FF.
(5) Write Adjustment value of video color temperature to
the equivalent PC color temperature adjustment
items..
Remarks
(1) Color temperature should be adjusted under the
condition in which the screen is the brightest, thus
the initial value for adjustment is set its maximum.
(2) Adjustment is made by reducing brightness only.
Reduce a bright color for adjustment.
(3) Video color temperature & Adjustment No. are the
same, but addresses in the memory are different,
thus there’s no problem.
5.6 COLOR TEMPERATURE CORRECTION
SETTING
This adjustment should be done after color
temperature adjustment (for 42” only).
(1) Set service adjustment menu to “DEVICE ADJUST
MODE - PDP”.
(2) Set WBC to “2”.
Specification
PC Color temperature (HIGH)
x = 0.268
42"
± 0.005
y = 0.283 ± 0.005
(
Color temp
:
12000K
)
x = 0.268
55"
± 0.005
y = 0.283 ± 0.005
(
Color temp
:
12000K
)
Video Color Temperature PC Color Temperature
R/G/B DRIVE (MEDIUM) data R/G/B DRIVE (MEDIUM) data
R/G/B DRIVE (STD) data R/G/B DRIVE (STD) data
R/G/B DRIVE (B/W) data R/G/B DRIVE (B/W) data
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