Sony Betacam SX DNW-A100 Maintenance Manual page 299

OXIDE C adjustment [to step (16)]
(14) Observe the R-Y output signal at the component waveform monitor.
(15) Playback the multiburst signal portion (3:00 to 6:00) of the alignment tape CR5-2A or CR5-2A PS,
and adjust the level at specified frequency part by table below.
And check levels at others are within specifications.
(DNW-A100/A50/A45: CR5-2A, DNW-A100P/A50P/A45P: CR5-2A PS)
n
As the R-Y output is overlapped the outputs of A and B channels on the component waveform
monitor, adjust/check in each channel.
Adjustment points: A channel:
B channel:
Specifications (A and B channels):See the table below.
Frequency Specification for DNW-A100/A50/A45
7T BAR Reference: 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)%
1.5 MHz Check : 80 (106 to 71)%
7T BAR 0.2
100%
DNW-A100/A50/A45
(16) Observe the B-Y output signal at the component waveform monitor, confirm that the B-Y output
signal levels at every frequencies are within specifications shown above.
If the B-Y output signal is out of specifications, perform fine adjustment for R-Y until the specifica-
tions for both R-Y and B-Y output signals are satisfied.
(17) Eject the alignment tape CR5-2A/CR5-2A PS.
(18) To exit A32 : DM VR 1, press the MENU button once.
Data save [to step (21)]
(19) Enter A3F : NV-RAM CONTROL of the maintenance mode, execute "SAVE ALL ADJUST
DATA".
(20) Check that the message "Save Complete" is displayed on the video monitor.
(21) To exit A3F : NV-RAM CONTROL, press the MENU button once.
DNW-A100/A50/A45
DNW-A100P/A50P/A45P
A32 : DM VR 1 : EQ1 OXIDE-C-A
A32 : DM VR 1 : EQ1 OXIDE-C-B
{_0.5 ±0.5 dB}
+0.5
dB}
_3.0
+0.9
{_0.4 dB}
_2.6
+2.5
{_2.0 dB}
_1.0
0.5 1 1.5 2 [MHz]
Frequency Specification for DNW-A100P/A50P/A45P
8T BAR Reference: 100% {0 dB}
1 MHz Adjust : 94 (102 to 86)%
0.2 MHz Check : 100 (106 to 71)% {0
0.5 MHz Check : 100 (106 to 71)% {0
1.5 MHz Check : 84 (106 to 71)%
8T BAR 0.2 0.5 1 1.5 2
100%
DNW-A100P/A50P/A45P
6-4. DM-89 Board Replacement
{_0.5 ± 0.8 dB}
+0.5
dB}
_3.0
+0.5
dB}
_3.0
+2.0
{_1.5 dB}
_1.5
[MHz]
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