(No.YA301)1-23
SUB SCREEN
A-D OFFSET
Remote
control unit
Signal
generator
[1.ADJUST]
S001: PREPARE
(Adjustment setting mode change)
S016: RT CB OF
(Sub screen cb offset)
S017: RT CR OF
(Sub screen cr offset)
S030: R DRIVE(Red drive)
S031: G DRIVE(Green drive)
S032: B DRIVE(Blue drive)
(1) Set "VIDEO STATUS" to
"STANDARD"
.
(2) Set "ASPECT" to
"FULL"
.
(3) Set "COLOR TEMPERATURE" to
"LOW"
.
(4) Set "MULTI SCREEN" to
"TWIN"
.
(5) Receive a NTSC 30% all white pattern signal
on the Right screen. At the same time, set the
Left screen in VIDEO-1 mode (No signal).
(6) Select
"1.ADJUST"
from the SERVICE
MODE.
(7) Set
< S030 >
(R DRIVE),
< S031>
(G DRIVE)
and
< S032 >
(B DRIVE) to
"133"
.
(8) Set
< S001 >
(adjustment setting mode
change) to set
"017"
and it change to the sub
screen A-D offset adjustment setting mode.
(9) Adjust
< S016 >
(Sub screen cb offset) to
minimize the blue noise in the upper half of the
screen.
If you select an adjustment item < S016 >,
then the screen automatically turn to twin
pictures mode.
(10) Adjust
< S017 >
(Sub screen cr offset) to
minimize the red noise in the upper half of the
screen.
(11) Readjust
< S016 >
and
< S017 >
to set the
upper half of the screen to be the blackest.
(See Fig.9)
(12) Set
< S001 >
to set
"000"
and it change to the
normal mode.
(13) Press the
[MUTING]
key to memoirze the set
value.
WHITE
BALANCE
(HIGHLIGHT)
Remote
control unit
Signal
generator
[1.ADJUST]
S030: R DRIVE (Red drive)
S031: G DRIVE (Green drive)
S032: B DRIVE (Blue drive)
(1) Receive a NTSC 75% all white signal.
(2) Set "VIDEO STATUS" to
"STANDARD"
.
(3) Set "ASPECT" to
"FULL"
.
(4) Select "COLOR TEMPERATURE" to
"LOW"
.
(5) Select
"1.ADJUST"
from the SERVICE
MODE.
(6) Adjust to keep one of
< S030 >
(Red drive),
< S031
>
(Green drive) or
< S032 >
(Blue drive) unchanged,
then lower the other two so that the all-white
screen is equally white throughout.
NOTE:
Set one or more of
< S030 >
,
< S031 >
, and
< S032 >
to
"133"
.
(7) Check that white balance is properly tracked
from low light to high light. If the white balance
tracking is deviated, adjust to correct it.
(8) Press the
[MUTING]
key to memoirze the set
value.
Item
Measuring
instrument
Test point
Adjustment part
Description
Set the 0% block part to be brightest.
VIDEO-1
<NO SIGNAL>
TV(RF)
<30% all white>
