Ad Clock Phase Adjustment - Sony Digital Betacam DVW-707 Maintenance Manual

7-3. AD Clock Phase Adjustment

7-3. AD Clock Phase Adjustment
Note
Conduct this check when the CCD block or DCP-17 board
is only replaced.
Preparation
. On the setup menu, set as follows.
PAGE : S12*FUNCTON 1/2
ITEM : TEST OUT
. OUTPUT/DCC switch (inside panel)
. WHITE BAL switch (inside panel)
. AUTO W/B BAL switch (front panel)
(Perform the automatic white balance adjustment.)
. Shoot a multiburst chart (4:3) in the underscan's hori-
zontal picture frame.
Test point : VIDEO OUT connector
: 1 Lens IRIS
setting point
: A (white level) = 90 ± 2 IRE (NTSC)
Spec.
A = 630 ±10 mV (PAL)
Chart frame
Underscanned monitor
Frame
. Pan the camera so that the 5 MHz signal portion of the
multiburst chart is positioned at the center of the monitor
screen. (Do not change the camera zoom.)
7-6
16:9 mode
ENC
CAM/ON
A
WHT
A
5 MHz
(Waveform monitor)
Adjustment Procedure
Equipment : Waveform monitor
Test point : VIDEO OUT connector
1. Select the 16:9 mode.
PAGE : S14*WIDE SCREEN
ITEM : 16:9/4:3 MODE
2. On the setup menu, adjust as follows.
PAGE : S54*AD ADJ.
ITEM : AD CLOCK PHASE
Spec. : Maximize the 5 MHz signal portion.
3. On the setup menu, adjust as follows.
PAGE : S54*AD ADJ.
ITEM : R/B CLOCK PHASE
Spec. : Adjust the 5 MHz signal portion to
nearly horizontal.
5 MHz
16:9
NG OK
DVW-790WS/709WS/707
DVW-790WSP/709WSP/707P P2V1