3-78
DNW-A100/A50/A45
DNW-A100P/A50P/A45P
2. METAL Y Adjustment
1.
Watch the Y output signal on the analog component
waveform monitor.
n
As the Y output is overlapped the outputs of A channel
and B channel on the component waveform monitor,
adjust/check the level at each channel.
2.
During play back the alignment tape in PLAY mode,
measure level at 0.5 MHz (NTSC) / 2T BAR (PAL).
PB portion:
Multi-burst signal (8:00 to 11:00) of
CR5-1B (NTSC) / CR5-1B PS (PAL)
This measured level is reference level 100% (0 dB).
3.
Restart the playback of alignment tape from the top of
PB portion in PLAY mode.
PB portion: The same as step 2
4.
To operate the maintenance mode, press the MENU
button once.
5.
Adjust the level at 4.1 MHz (NTSC) / 5 MHz (PAL).
PB portion:
The same as step 2
Adj. points:
A channel: A32 : DM VR 1 : EQ1 METAL-Y-A
B channel: A32 : DM VR 1 : EQ1 METAL-Y-B
Specification (A and B channels):
See the table below.
6.
To perform the tape operation, press the SET button
once.
7.
During play back the alignment tape in PLAY mode,
check each level at the other frequency parts.
PB portion:
The same as step 2
Specification (A and B channels):
See the table below.
8.
Connect the video monitor to VIDEO OUTPUT
COMPOSITE 2 connector.
9.
During play back the alignment tape in PLAY mode,
check the playback picture on the video monitor.
PB portion:
The same as step 2
Specification: It has not flicker.
10. Reconnect the video monitor to VIDEO OUTPUT
COMPOSITE 3 (SUPER) connector.
Specifications for NTSC model
Specification for NTSC model
Frequency
(Level at 0.5 MHz is 100% {0 dB}.)
4.1 MHz
Adjust: 94% (100 to 90%)
{
_
0.5
+
0.5
dB}
_
0.4
1 MHz
Check: 100% (106 to 63%) {0
+
0.5
dB}
_
4.0
2 MHz
3 MHz
4.5 MHz
Check: 80% (106 to 63%)
{
_
2.0
+
2.5
dB}
_
2.0
Specifications for PAL model
Specification for PAL model
Frequency
(Level at 2T BAR is 100% {0 dB}.)
5 MHz
Adjust: 91% (96 to 87%)
{
_
0.8
±
0.4 dB}
0.5 MHz
Check: 100% (106 to 63%) {0
+
0.5
dB}
_
4.0
1 MHz
2 MHz
4 MHz
5.5 MHz
Check: 84% (106 to 63%)
{
_
1.5
+
2.0
dB}
_
2.5
100%
0.5
1 2
3
4.1 4.5
[MHz]
2T BAR 0.5 1
2
5
4
5.5
[MHz]
100%
3-8. Analog Betacam PB System Alignment
3-8-12. PB Frequency Response Adjustment
