Rgb Amp Adjustment (Va-117 Board); Contrast Adjustment (Va-117 Board) - Sony DCR-TRV16 Service Manual

2. RGB AMP Adjustment (VA-117 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 Camera
Subject Arbitrary
Pin 4 of CN1002 of VC-280 board
Measurement Point
(EVF VG)
Measuring Instrument Oscilloscope
Adjustment Page C
Adjustment Address 54
Specified Value A = 7.20 ± 0.10V (NTSC)
A = 7.14 ± 0.10V (PAL)
Note: The data of page: 0, address: 10 must be "00".
Adjusting method:
Order Page Address Data
1 0 01 01
2 C 54
3 C 54
4 0 01 00
A
Pedestal
Fig. 5-1-16.
DCR-TRV16/TRV16E/TRV18/TRV18E/TRV116E/TRV118E
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.
Press PAUSE button.
Set the data.
Pedestal
2H

3. Contrast Adjustment (VA-117 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
5-31
Camera
Arbitrary
Pin 4 of CN1002 of VC-280 board
(EVF VG)
Oscilloscope
C
58
A = 2.52 ± 0.10V (NTSC)
A = 2.38 ± 0.10V (PAL)
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.
2H
Fig. 5-1-17.