Bright Adjustment (Pd-188 Board); Black Limit Adjustment (Pd-188 Board) - Sony DCR-DVD100 Service Manual

DCR-DVD100/DVD100E

2. Bright Adjustment (PD-188 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
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 B 64
3 B 64
4 0 01
A
Pedestal
MOVIE ( )
Arbitrary
Pin 3 of CN1003 of VC-307 board
(PANEL VG)
Oscilloscope
B
64
A = 7.58 ± 0.05V (NTSC)
A = 7.46 ± 0.05V (PAL)
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. 6-1-18.

3. Black Limit Adjustment (PD-188 board)

Set the video signal level for driving the LCD driver to an appropriate
level.
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 B 65
3 B 65
4 0 01
A
V
6-32
MOVIE ( )
Arbitrary
Pin 5 of CN1003 of VC-307 board
(PSIG)
Oscilloscope
B
65
A = 8.30 ± 0.08V
Procedure
01 Set the data.
Change the data and set the PSIG
signal amplitude (A) to the
specified value. (The data should
be "00" to "0F")
Press PAUSE button.
00 Set the data.
Fig. 6-1-19.