Sony EVO-720P - Page 252

8-4, DIGITAL PICTURE SYSTEM
ADJUSTMENT
For this adjustment, the video signal coming through
the “Recorder video input terminal” and the player
playback signal are used as adjustment signals,
Confirm the following two points before performing
the adjustment,
1, The Y signal input via the recorder (Pin of
۩N002 on the DM-24 board) must be 1 Vp-p. Also,
burst of the chroma signal (Pin ® of CNOO2 on
the DM-24 board) must be 285 mVp-p, and the
video signal (Pin @ of CNO02 on the DM-24
board) must be 2 Vp-p,
(Confirm this with the recorder input select
switch in the “EXT" position and the recorder
in the stop mode).
2, The Y playback signal from the player (Pin ©
of CNOO1 on the DM-24 board) must be 1 Vp-p.
Burst of the chroma signal (Pin @ of CNO01 on
the DM-24 board) must be 300 mVp-p, and the
video signal (Pin @ of CNOO1 on the DM-24
board) must be 2 Vp-p.
(Confirm this by playing back the color bar
section of the alignment tape (WRS-SCSP) on the
player for operation check).
8-4-1. Main Clock Adjustment’ (DIM-24 Board)
Mode
Stop (Player: side and
recorder side)
Signat
Arbitrary
Measurement Point
TP504 (Pin @ of 1C521)
| Measuring Instrument
Frequency counter
| Adjusting Element
CV501
[Specified Value
4433618420 Hz
Adjusting method:
1) Adjust to 4433618 +20 Hz with CV501.
8-4-2. Y Input Level Adjustment (DM-24 Board)
Signal
Measurement Point
Measuring Instrument
Adjusting Element
Specified Value
Connection :
1) Connect the editing
Switch setting :
° Recorder input select
Adjusting method :
1) Press the editing controller “RECORDER” button.
Playback (Player side)
Alignment tapes"...
For operation, confirmation
(WRS-SCSP) se ®
Color. bar section
TPOGI (Pin © of *CN009)
Oscitloscope
RVOO1
1,040.05 Vp-p
controller,
switch
«++PLAYER
2) Adjust to 1.0 40.05 Vp-p with RVOO1.
14
+
1,020.05 Vp-p
Fig. 835, Y-input level adjustment
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