Betacam Sx Format Overall Rf System Adjustment - Sony DNW-A100 Maintenance Manual

3-5-2. Betacam SX Format Overall RF
System Adjustment
Preparing tools
. Analog composite video monitor
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This monitor is for menu displaying. Be sure to connect
it to VIDEO OUTPUT COMPOSITE 3 (SUPER)
connector.
. Alignment tape for DNW-A100/A50/A45:
SR5-1 (Part No. 8-960-075-01)
. Alignment tape for DNW-A100P/A50P/A45P:
SR5-1P (Part No. 8-960-075-51)
. Recording tape: BCT-SX series (Betacam SX cassette)
(Sony's standard products)
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For this recording tape, prepare the virgin tape or no
recorded tape that erased using the tape eraser, etc. in
advance.
Preparation
1. Clean the video heads.
(Refer to "5-2-3. Tape Running Surface of Upper Drum
and Video Heads Cleaning" of the maintenance manual
part 1.)
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Perform the cleaning under the power off.
2. Check the settings of the sub control panel.
CHARACTER switch 8 ON
REC INHIBIT switch 8 OFF
3. Check that the VTR has warmed up.
Before starting the adjustment, warm up the VTR through
the power for 20 minutes or more.
Notice on the automatic adjustment
. Be sure not to touch the search dial and buttons which
have an effect on tape running during the automatic
adjustment mode. If tape running condition is changed,
optimum adjustment can not be performed, the automatic
adjustment operation may freeze, or the result of auto-
matic adjustment become "FAIL" or "NG".
. If the adjustment with the automatic adjustment mode
does not complete properly (an error message "Auto
Adjust Failure" or "Condition NG" will be displayed on
the video monitor), refer to "For Condition NG / Auto-
matic Adjustment Failure" in Section 4-2-8 of the
maintenance manual part 1.
DNW-A100/A50/A45
DNW-A100P/A50P/A45P
3-5. RF System Alignment (EQ-56 Board)

3-5-2. Betacam SX Format Overall RF System Adjustment

Overall RF System Adjustment
1. Insert the alignment tape SR5-1 or SR5-1P, then
search it in time code 00:01:00.
2. To enter the maintenance mode, press S1101 (G-1) of
the SS-63 board.
PB system adjustment
3. Enter A17 : A10-A16 ALL ADJUST (A11-A16 ALL
ADJUST) in the maintenance mode.
. Message "Auto Adjust (Press SET)" is displayed on
the video monitor.
4. To execute the automatic adjustments for PB system,
press the SET button once on the lower control panel.
. Message "Set a blank tape and press SET button for
REC CURRENT adjustment" is displayed on the
video monitor when the PB system adjustments are
completed normally.
5. To eject the alignment tape, press the SET button
once.
6. Take out this tape.
REC system adjustment
(Rec. current adjustment)
7. Insert the recording tape.
8. To execute the automatic adjustment for the recording
current, press the SET button once.
. Message "Auto Adjust Complete" is displayed on
the video monitor when this adjustment is complet-
ed normally.
9. To exit the maintenance mode, press the MENU
button four times.
10. Eject the recording tape.
Data save (Store the adjusted data)
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Do not save the adjustment data if the automatic
adjustments was not completed normally.
11. To enter the maintenance mode, press S1101(G-1) on
the SS-63 board.
12. Enter A1F : 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".
13. To exit the maintenance mode, press the MENU
button four times.
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