Sony DNW-A100 Maintenance Manual page 117

5. OXIDE C Adjustment
1. Watch the R-Y output signal at the analog component
waveform monitor.
n
As the R-Y (B-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 7T BAR (NTSC) / 8T BAR (PAL).
PB portion: Multi-burst signal (3:00 to 6:00) of
CR5-2A (NTSC) / CR5-2A 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 1 MHz.
PB portion: The same as step 2
Adj. points:
A channel: A32 : DM VR 1 : EQ1 OXIDE-C-A
B channel: A32 : DM VR 1 : EQ1 OXIDE-C-B
Specifications (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
Specifications (A and B channels):
See the table below.
8. Watch the B-Y output signal on the component
waveform monitor.
9. Check that the B-Y output signal levels at every
frequencies are within specifications shown below.
If the B-Y output signal is out of specifications,
perform fine adjustment for R-Y until the specifica-
tions for R-Y and B-Y output signals.
10. Eject the alignment tape.
11. To operate the maintenance mode, press the MENU
button once.
12. To exit A32 : DM VR 1, press the MENU button once.
DNW-A100/A50/A45
DNW-A100P/A50P/A45P
3-8. Analog Betacam PB System Alignment
3-8-12. PB Frequency Response Adjustment
Specifications for NTSC model
Specification for NTSC model
Frequency (Level at 0.5 MHz is 100% {0 dB}.)
1 MHz Adjust: 94% (100 to 89%)
0.2 MHz Check: 100% (106 to 71%) {0
0.5 MHz Check: 95% (106 to 71%) {_0.4
1.5 MHz Check: 80% (106 to 71%) {_2.0
7T BAR 0.2
100%
Specifications for PAL model
Specification for PAL model
Frequency (level at 8T BAR is 100% {0 dB}.)
1 MHz Adjust: 94% (102 to 86%)
0.2 MHz Check: 100% (106 to 71%) {0
0.5 MHz
1.5 MHz Check: 84% (106 to 71%) {_1.5
8T BAR
100%
6. Data Save (Store the Adjusted Data)
1. Enter A3F : NV-RAM CONTROL, then execute
"SAVE ALL ADJUST DATA".
. Message "Save Complete" is displayed on the video
monitor when this data save is completed normally.
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When loading the previous data without save the
current adjusted data, execute "ALL DATA PREVI-
OUS".
2. To exit the maintenance mode, press the MENU
button four times.
{_0.5 ± 0.5 dB}
+0.5
dB}
_3.0
+0.9
dB}
_2.6
+2.5
dB}
_1.0
0.5 1 1.5 2 [MHz]
{_0.5 ± 0.8 dB}
+0.5
dB}
_3.0
+2.0
dB}
_1.5
0.2 0.5 1 1.5 2 [MHz]
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