Sony DVCAM DSR-PDX10 Service Manual page 196

2. RGB AMP Adjustment (PD-191 board)
Set the D range of the RGB decoder used to drive the LCD to the
specified value. If deviated, the LCD screen will become blackish
or saturated (whitish).
Mode VTR stop
Signal No signal
Measurement Point Pin 1 of CN1024 of VC-318 board
(PANEL VG)
Ext. trigger: Pin 2 of CN1024 of
VC-318 board (PANEL COM)
Measuring Instrument Oscilloscope
Adjustment Page C
Adjustment Address 64
Specified Value A = 3.50 ± 0.05V
Note:
The data of page: 0, address: 10 must be "00".
Adjusting method:
Order Page Address Data
1 0 01 01
2 C 64
3 C 64
4 0 01 00
5
A
Pedestal
Fig. 6-1-28.
Procedure
Set the data.
Change the data and set the
voltage (A) between the reversed
waveform pedestal and non-
reversed waveform pedestal to
the specified value.
(The data should be "00" to "3F".)
Press PAUSE button.
Set the data.
Perform "Contrast Adjustment",
"COM AMP Adjustment" and
"V COM Adjustment".
Pedestal
2H
3. Contrast Adjustment (PD-191 board)
Set the level of the VIDEO signal for driving the LCD to the specified
value. If deviated, the screen image will be blackish or saturated
(whitish).
Mode
Signal
Measurement Point
Measuring Instrument
Adjustment Page
Adjustment Address
Specified Value
Note:
The data of page: 0, address: 10 must be "00".
Adjusting method:
Order Page Address Data
1 0 01
2 C 69
3 C 69
4 0 01
5
A
Pedestal
6-41
DSR-PDX10/PDX10P
VTR stop
No signal
Pin 1 of CN1024 of VC-318 board
(PANEL VG)
Ext. trigger: Pin 2 of CN1024 of
VC-318 board (PANEL COM)
Oscilloscope
C
69
A = 3.45 ± 0.05V
Procedure
01 Set the data.
Change the data and set the
voltage (A) between the 100 IRE
and 0 IRE (pedestal) to the
specified value.
(The data should be "00" to "7F".)
Press PAUSE button.
00 Set the data.
Perform "COM AMP Adjustment"
and "V COM Adjustment".
100IRE
2H
Fig. 6-1-29.