Monitor Terminal Output Level Adjustment (Jc-20 Board) - Sony DSR-50P Service Manual

20. Monitor Terminal Output Level Adjustment
(JC-20 Board)
Mode Playback
Signal Arbitrary
VIDEO OUT 1 terminal (75 Ω
Measurement Point
terminated)
Measuring Instrument Vectorscope (NTSC: 0% setup
mode)
Oscilloscope
Adjustment Page C
Adjustment Address 25 (Y level)
26, 27 (C level)
Specified Value Y level: A = 822 ± 20 mVp-p
C level: From the center of
Adjusting method:
1) Select page: 0, address: 01, and set data: 01.
2) Select page: 3, address: 0C, set data: 01, and press the PAUSE
button of the adjustment remote commander.
3) Select page: C, address: 25, change the data and adjust the Y
level (A) to the specified value.
4) Press the PAUSE button of the adjustment remote commander.
5) Only for NTSC model, set the vectorscope to the 7.5% setup
mode.
6) Adjust the burst luminance point to the specified position using
the PHASE and GAIN knobs of vectorscope.
7) Only for NTSC model, set the vectorscope to the 0% setup
mode.
8) Change the data on page: E, addresses: 26, 27 and adjust so
that each luminance point positions at the
vectorscope.
9) Press the PAUSE button of the adjustment remote commander.
10) Select page: 3, address: 0C, set data: 00, and press the PAUSE
button.
11) Select page: 0, address: 01, and set data: 00.
Y level
White
A
(NTSC)
A = 825 ± 20 mVp-p (PAL)
mark
on the vectorscope, each
luminance point must
satisfy the following:
Level: ± 5%
Phase: ± 3º
mark on the
H
C level
For NTSC model
Y
L
Burst
For PAL model
–G
Y
L
–Y
L
–Burst
G
Fig. 5-3-26
5-67
R
M
G
B
G
C
Y
R
–C
Y
M
G
Burst
–M
G
C
–R
Y
–B
B