Contrast Adjustment (Vm-027 Board); White Balance Adjustment (Vm-027 Board) - Sony Handycam DCR-PC115 Service Manual

DCR-PC115/PC115E/PC120BT/PC120E

4. Contrast Adjustment (VM-027 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
Adjusting method:
Order Page Address Data
1 0 01
2 D 99
3 D 99
4 0 01
3 steps peak
A
Pedestal
Camera
Arbitrary
Pin 4 of CN008 of VC-270 board
(EVF VG)
Oscilloscope
D
99
A = 2.45 ± 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.
2H
Fig. 5-1-20.

5. White Balance Adjustment (VM-027 board)

Correct the white balance.
If deviated, the reproduction of the EVF screen may degenerate.
Mode
Subject
Measurement Point
Measuring Instrument
Adjustment Page
Adjustment Address
Specified Value
Note1: Check the white balance only when replacing the following parts.
If necessary, adjust them.
1. LCD panel
2. Light induction plate
3. IC1802
4. D3701, D3702
Note2: Use the AC power adaptor.
Adjusting method:
Order Page Address Data
1 0 01
2 D 97
3 D 98
4 D 98
5 D 97
6 D 97
7 D 98
8 D 98
9 D 98
10 0 01
5-38
Camera
Arbitrary
Check on EVF screen
D
97, 98
The EVF screen should not be colored.
Procedure
01 Set the data.
8D Set the data, and press PAUSE
button.
73 Set the data, and press PAUSE
button.
Check that the EVF screen is not
colored. If not colored, proceed to
step 10.
Change the data so that the EVF
screen is not colored.
Press PAUSE button.
Change the data so that the EVF
screen is not colored.
Press PAUSE button.
If the EVF screen is colored, repeat
steps 5 to 9.
00 Set the data.