13
6.
Select category “2103-2”.
7.
Adjust item #2 "SCON" so that the right
side waveform level is 1.59 ±0.05 Vp-p.
8.
After adjustment is finished, press the
“MUTING” + “ENTER” buttons on the
remote to write the data to memory.
2-18 RF SUB COLOR AND SUB
HUE ADJUSTMENT
1.
Display the TWIN mode by pressing
the
button on the remote, then set
PICTURE to maximum and COLOR to
50%
2.
Display 75 % color bars (RF) signal
through the VHF-UHF input, and tune
both picture windows to the same
channel that the color bar generator is
set to.
3.
Connect an oscilloscope to CN3009
pin 7 (B) on the A board.
4.
Select category “2103-1”.
5.
Adjust item #3 "SCOL" and #4 "SHUE"
so that the left side waveform levels are
as follows: VB1 = VB4 and VB2 = VB3.
6.
Select category “2103-2”.
7.
Adjust item #3 "SCOL" and #4 "SHUE"
so that the right side waveform levels
are as follows: VB5 = VB8 and VB6 =
VB7.
8.
After adjustment is finished, press the
“MUTING” + “ENTER” buttons on the
remote to write the data to memory.
2-19 SUB-BRIGHTNESS
ADJUSTMENT
1.
Enter the service mode and display the
internally generated 1080i all-black
pattern (refer to section 2-23 for details
on displaying this pattern).
2.
Set the picture level to minimum, then
make the room as dark as possible.
3.
Select category “2150P-1”.
4.
Adjust item #3 "SBRT" so that the
picture is all black without any faint
glowing of the screen.
5.
After adjustment is finished, press the
“MUTING” + “ENTER” buttons on the
remote to write the data to memory.
2-20 NEUTRAL WHITE BALANCE
ADJUSTMENT
1.
Enter the service mode.
2.
Display an all-white raster through any
video input
3.
Set the color temperature to NEUTRAL.
4.
Set the color to minimum
5.
Select adjustment category "2150P-1"
6.
Alternately adjust item # 4 "RDRV" and
item # 6 "BDRV" to remove any color tint
from the white picture.
7.
Display a 30 IRE raster (dark gray).
8.
Alternately adjust item # 7 "RCUT" and
item # 9 "BCUT" to remove any color tint
from the gray picture.
9.
After adjustment is finished, press the
“MUTING” + “ENTER” buttons on the
remote to write the data to memory.
2-21 COOL WHITE BALANCE
ADJUSTMENT
1.
Enter the service mode.
2.
Display an all-white raster through any
video input.
3.
Set the color temperature to COOL.
4.
Set the color to minimum.
5.
Select adjustment category "2150P-1".
6.
Alternately adjust item # 12 "RDOF" and
item # 14 "BDOF" to give the white
picture a slight bluish tint.
7.
Display a 30 IRE raster (dark gray).
8.
Alternately adjust item # 7 "RCOF" and
item # 9 "BCOF" to give the gray picture
a slight bluish tint.
1.59 ±0.05 Vp-p
Fig. 2.17
29.63 uS
VB1
29.63 uS
Fig. 2.18
VB3
VB2
VB4
VB5
VB6
VB7
VB8
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