5-67
20. Monitor Terminal Output Level Adjustment
(JC-20 Board)
Mode
Playback
Signal
Arbitrary
Measurement Point
VIDEO OUT 1 terminal (75
Ω
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
(NTSC)
A = 825 ± 20 mVp-p (PAL)
C level: From the center of mark
on the vectorscope, each
luminance point must
satisfy the following:
Level: ± 5%
Phase: ± 3º
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 mark on 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.
A
H
White
R
M
G
Y
L
Burst
G
C
Y
B
Fig. 5-3-26
Y level
C level
For NTSC model
For PAL model
R
–R
M
G
–M
G
Y
L
–Y
L
Burst
–Burst
G
–G
C
Y
–C
Y
B
–B
