JVC I'Art Palette PD-42X795, Руководство по обслуживанию

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1-36 (No.YA100)
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) Set "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>
d u p
a t o
r