Contrast Adjustment (Pd-217 Board); Center Level Adjustment (Pd-217 Board) - Sony DCR-VX2100 Adjustment Manual

DCR-VX2100/VX2100E

5. Contrast Adjustment (PD-217 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
Adjusting method:
Order Page Address Data
1 0 01
2 D AA
3 D AA
4 0 01
5
3 steps peak
A
Pedestal
VTR stop
No signal
Pin 1 of CN2105 (VG)
Oscilloscope
D
AA
A = 2.70 ± 0.05V
Procedure
01 Set the data.
Change the data and set the
voltage (A) between the 3 steps
peak and pedestal to the
specified value.
(The data should be "00" to
"7F".)
Press PAUSE button.
00 Set the data.
Check that the specified value of
"Bright Adjustment" is satisfied.
2H
Fig. 6-1-23.

6. Center Level Adjustment (PD-217 board)

Set the video signal center level of LCD panel to an appropriate
level.
Mode
Signal
Measurement Point
Measuring Instrument
Adjustment Page
Adjustment Address
Specified Value
Adjusting method:
Order Page Address Data
1 0 01
2 3 0C
3 3 22
4 D AB
5 D AB
6 3 0C
7 3 22
8 0 01
6-34
VTR stop
No signal
Pin 1 of CN2105 (VG)
Digital voltmeter
D
AB
A = 7.00 ± 0.05Vdc
Procedure
01 Set the data.
20 Set the data, and press PAUSE
button.
08 Set the data, and press PAUSE
button.
Change the data and set the DC
voltage (A) to the specified
value.
(The data should be "00" to
"7F".)
Press PAUSE button.
00 Set the data, and press PAUSE
button.
00 Set the data, and press PAUSE
button.
00 Set the data.