Power System Adjustment; Battery End Detection Voltage Adjustment - Sony Digital Betacam DVW-707 Maintenance Manual

6-2. Power System Adjustment

6-2. Power System Adjustment
6-2-1. Battery End Detection Voltage
Adjustment
Preparation
. Connect as follows.
DIGITAL
VOLTMETER
DC IN
DVW-790WS/709WS/707
DVW-790WSP/709WSP/707P
. Supply +12 V DC to the DC IN connector.
Adjustment Procedure
*1
1. Insert a work tape (BCT-D40) and enter the recording
mode.
*1 : A work tape that is not used so many times is desired.
The already recorded tape can be used. However, note that the
previous signals will be erased during adjustment.
2. Measurement point : DC IN connector
Adjust the output voltage of the external regulated DC
power supply until the following specification is satis-
fied:
Spec. : 11.28
3. Press the DIAG button (inside panel) to enter the DIAG
menu.
4. Keep pressing the HOLD button (inside panel) and con-
firm that the WARNING indicator turns on momentari-
ly.
If not, repeat the adjustment from step 1.
6-2
REGULATED
DC POWER SUPPLY
0.02 V DC
Check Procedure
1. Enter the STOP mode.
2. Turn the POWER switch off and back on.
3. Enter the REC mode.
4. Measurement point : DC IN connector
Adjust the output voltage of the external regulated DC
power supply until the following specification is satis-
fied:
Spec. : 11.28
5. Check the display window.
BATT level meter : The three indicators on the left
turn on.
6. Increase the output voltage of the external regulated DC
power supply gradually until seven indicators (FULL)
of the BATT level meter turn on. Measure the output
voltage of the external regulated DC power and confirm
that the following specification is now satisfied:
Spec. : 11.98
DIAG PB VITC NDF EXT-LK
H MIN
TAPE E
BATT level
BATT E
meter
RF SERVO
0.02 V DC
0.02V
OVER EMPH OVER
HOLD
0
V
H
10
SEC FRM
20
B
30
F
40
.
HUMID SLACK
1 2
PEAK dB
Display window
DVW-790WS/709WS/707
DVW-790WSP/709WSP/707P P2V1