Rgb Amp Adjustment (Vc-283 Board); Contrast Adjustment (Vc-283 Board) - Sony DCR-TRV40 Service Manual

DCR-TRV40/TRV40E/TRV50/TRV50E

2. RGB AMP Adjustment (VC-283 board)

Set the D range of the RGB driver used to drive the LCD to the
specified value. If deviated, the LCD screen will become blackish
or saturated (whitish).
Mode
Subject
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 54
3 C 54
4 0 01
A
Pedestal
Camera
Arbitrary
Pin qd of CN1012 (EVF VG)
Oscilloscope
C
54
A = 7.00 ± 0.05V
Procedure
01 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.
Press PAUSE button.
00 Set the data.
Pedestal
2H
Fig. 5-1-17.

3. Contrast Adjustment (VC-283 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
Subject
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 58
3 C 58
4 0 01
3 steps peak
A
Pedestal
5-38
Camera
Arbitrary
Pin qd of CN1012 (EVF VG)
Oscilloscope
C
58
A = 2.40 ± 0.05V
Procedure
01 Set the data.
Change the data and set the
voltage (A) between the 3 steps
peak and 0 IRE (pedestal) to the
specified value.
(The data should be "00" to "7F".)
Press PAUSE button.
00 Set the data.
2H
Fig. 5-1-18.