Sony DVCAM DSR-25, Service Manual

Page: 189 / 238

5-64
DSR-25
2H
A
6. V-COM Level Adjustment (PD-170 Board)
Mode E-E
Signal Arbitray
Measurement Point Pin
3
of CN1504 on VD-032 board
(PANEL_COM)
Measuring Instrument Oscilloscope
Adjustment Page E
Adjustment Address 86
Specified Value A = 6.50
±
0.05 Vp-p
Adjusting method:
1) Select page: 0, address: 01, and set data: 01.
2) Select page: 3, address: 0C, set data: 01, and press the PAUSE
button of the adjustment remote commander.
3) Select page: E, address: 86, change the data and set the V-
COM signal level (A) to the specified value.
4) Press the PAUSE button of the adjustment remote commander.
5) Select page: 3, address: 0C, set data: 00, and press the PAUSE
button.
6) Select page: 0, address: 01, and set data: 00.
Fig. 5-3-18
7. V-COM Adjustment (PD-170 Board)
Mode E-E
Signal Arbitrary
Measurement Point Check on LCD screen
Measuring Instrument
Adjustment Page E
Adjustment Address 88
Specified Value The brightness difference between
the section-A and section-B is
minimum
Note: Perform “Bright Adjustment” and “Contrast Adjustment”
before this adjustment.
Adjusting method:
1) Select page: 0, address: 01, and set data: 01.
2) Select page: 3, address: 0C, set data: 60, and press the PAUSE
button of the adjustment remote commander.
3) Select page: 3, address: 22, set data: 0F, and press the PAUSE
button.
4) Select page: 9, address: 0E, and set data: 27.
5) Select page: E, address: 88, change the data so that brightness
of the section A and section B is equal.
6) Press the PAUSE button of the adjustment remote commander.
7) Select page: 9, address: 0E, and set data: 00.
8) Select page: 3, address: 22, set data: 00, and press the PAUSE
button.
9) Select page: 3, address: 0C, set data: 00, and press the PAUSE
button.
10) Select page: 0, address: 01, and set data: 00.
A
A
A
A
B
B
B
B
Fig. 5-3-19