Servo System Adjustment; Automatic Servo Adjustment; Automatic Pg Phase Adjustment - Sony Betacam SX DNV-5 Maintenance Manual

7-3. Servo System Adjustment

7-3. Servo System Adjustment

7-3-1. Automatic Servo Adjustment

Adjustment procedure
1. S110-1 (MDC-5 board) → ON
D103 indicator on the MDC-5 board blinks.
2. Press S108 button on the MDC-5 board one time and
confirm that D104 indicator lights up.
3. Insert a blank tape (BCT-60SX or equivalent).
(During the interval from 20 minute to 30 minute of
the tape)
4. Press S109 button on the MDC-5 board for a second or
more and release to execute the automatic adjustment
mode.
(It takes about a minute to complete this automatic
adjustment.)
. Capstan FG duty ratio adjustment
. Capstan free speed adjustment
. Composite shooting delay adjustment
5. After adjustment is normally completed, the tape is
automatically ejected.
(Turn off the power 10 seconds or more after finishing
the adjustment, if required.)
If the adjustment is not normally completed, repeat
from step 1 (the VTR enters to the STOP mode).
6. S110-1 (MDC-5 board) → OFF
D103 indicator on the MDC-5 board goes out.
S110
2
ON
D106
D103
7-2
S109 S108
MDC-5 board
RV100
1
D107 D108
D104 D105

7-3-2. Automatic PG Phase Adjustment

Adjustment procedure
1. S110-1 (MDC-5 board) → ON
D103 indicator on the MDC-5 board blinks.
2. S1-8 (DVP-1 board) → ON
D3 indicator on the DVP-1 board lights up and the unit
goes into the recording head playback mode.
3. Press S108 switch on the MDC-5 board two times (A
press of button shall be within a second.)
D107 indicator on the MDC-5 board lights up.
4. Insert the alignment tape (SR2-1/1P) and play back the
8T recorded portion (TIME;00:00:00:00 - 00:15:00:00).
5. 1RV100 (MDC-5 board) → Mechanical center
6. Press S109 button on the MDC-5 board for a second or
more and release to executed the automatic adjustment
mode.
(It takes about several seconds to one minute to finish
this automatic adjustment.)
. PG phase adjustment
7. After adjustment is normally completed, the tape is
automatically ejected.
(Turn off the power 10 seconds or more after finishing
the adjustment, if required.)
If the adjustment is not normally completed, repeat
from step 3 (the VTR enters to the STOP mode).
8. S1-8 (DVP-1 board) → OFF
S110-1 (MDC-5 board) → OFF
D103 indicator on the MDC-5 board goes out.
B
A
DVP-1 BOARD (A SIDE)
D E F
C
D3
S1
DNV-5
DNW-7/90/90WS
G
1
2
3
4
5
6