White Shading Adjustment - Sony DIGITAL BETACAM DVW-707 Maintenance Manual

5-5. White Shading Adjustment

5-5. White Shading Adjustment
Note
. This adjustment could not be correctly performed if the
uneven white patten is used, luminance is not correct, or
lens iris and lena zoom are not in good conditions.
Preparation
. Lens IRIS → AUTO
. Shoot a fully occupied white area of pattern box in the
underscanned monitor frame.
. Waveform monitor setting
LUM mode
VOLT FULL SCALE range → 0.5
Adjustment Procedure
Equipment : Waveform monitor
Test point : TEST OUT connector
1. On the setup menu, set as follows.
PAGE : E30*W-SHADING G
: TEST OUT → G
ITEM
2. Make the waveform flat by setup menu according to
the table below.
3. Adjust the shading for R and B channels in the same
way.
TEST OUT H SAW V SAW
G E30*W-SHADING_G
TEST OUT → G H SAW
V SAW
R E31*W-SHADING_R
TEST OUT → R H SAW
V SAW
B E32*W-SHADING_B
TEST OUT → B H SAW
V SAW
(H SAW) (H PARA)
5-6
H PARA V PARA
H PARA V PARA
H PARA V PARA
H PARA V PARA
(V SAW) (V PARA)
4. Select the lens extender and adjust in the same way.
TEST OUT H SAW V SAW
G E30*W-SHADING G
TEST OUT → G H SAW
V SAW
(EXT) (EXT)
R E31*W-SHADING R
TEST OUT → R H SAW
V SAW
(EXT) (EXT)
B E32*W-SHADING B
TEST OUT → B H SAW
V SAW
(EXT) (EXT)
Setting After Adjustment
. On the setup menu, set as follows.
PAGE : E32*W-SHADING B
: TEST OUT → ENC
ITEM
H PARA V PARA
H PARA V PARA
(EXT) (EXT)
H PARA V PARA
(EXT) (EXT)
H PARA V PARA
(EXT) (EXT)
DVW-790WS/709WS/707
DVW-790WSP/709WSP/707P P1