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

4-5. White Shading Adjustment

4-5. White Shading Adjustment
Note
This adjustment could not be correctly perfomed if the
uneven white pattern is used, luminance is not correct, or
lens iris and lens 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. Select the 16:9 mode.
PAGE : E14*WIDE SCREEN
: 16:9/4:3 MODE → 16:9
ITEM
2. On the setup menu, set as follows.
PAGE : E30*W-SHADING G
: TEST OUT → G
ITEM
3. Make the waveform flat by setup menu according to the
table below.
4. 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)
4-8
16:9 mode
H PARA V PARA
H PARA V PARA
H PARA V PARA
H PARA V PARA
(V SAW) (V PARA)
5. 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