8-10 DVW-790WS/709WS/707
DVW-790WSP/709WSP/707P P2V1
8-8. R/B AD Gain Adjustment
Notes
.This adjustment is needed only when the AD board or
the VA board is replaced. Do not make any attempt to
touch on this adjustment in any other cases.
.Never make any attempt to change the G AD gain data
during this adjustment.
Preparation
.Connect a waveform monitor to the TEST OUT and
vector monitor to the VIDEO OUT connectors respec-
tively.
.WHITE BAL switch (inside panel) → PRST
.On the setup menu, set as follows.
PAGE : S12*FUNCTION 1/2
ITEM : TEST SAW → ON
ITEM : GAMMA → OFF
PAGE : S21*LEVEL 4
ITEM : KNEE → OFF
Adjustment Procedure
1. On the setup menu, adjust as follows.
PAGE : S54*AD ADJ.
ITEM : R AD GAIN
Spec. : Adjust the illuminated spot at the center
of the vector monitor.
2. On the setup menu, adjust as follows.
PAGE : S54*AD ADJ.
ITEM : B AD GAIN
Spec. : Adjust the illuminated spot at the center
of the vector monitor.
3. Repeat steps 1 and 2 several times, adjust the illumi-
nated spot at the center of the vector monitor.
4. Make sure that the carrier leakage at portion B is not
observed.
Setting After Adjustment
.On the setup menu, set as follows.
PAGE : S12*FUNCTION 1/2
ITEM : TEST SAW → OFF
ITEM : GAMMA → ON
PAGE : S21*LEVEL 4
ITEM : KNEE → ON
8-8. R/B AD Gain Adjustment
B
RM
G
C
Y
G
Y
L
B
RMG
CY
G
YL
B
(
For NTSC
)(
For PAL
)