DSC-P50 - Sony Digital Camera Service Manual (repair manual). Page 63

Set the center of VG signal for driving the LCD to the specified
value.

Mode

PLAY

Signal

Arbitrary

Measurement Point

Pin 9 of CN706 (VG)

Measuring Instrument

Digital voltmeter

Adjustment Page

D

Adjustment Address

D6

Specified Value

A = 7.00 

±

 0.05 V

Order Page Address Data

Procedure

1

0

01

01

2

4

F1

02

Change the data and set the

3

D

D6

DC voltage (A) to the specified
 value.

4

D

D6

Press PAUSE button.

Order Page Address Data

Procedure

1

4

F1

00

2

0

01

00

Set the DC bias of the common electrode drive signal of LCD to
the specified value.
If deviated, the LCD display will be move, producing flicker and
conspicuous vertical lines.

Mode

PLAY

Signal

Arbitrary

Measurement Point

Check on the LCD screen

Measuring Instrument

Adjustment Page

D

Adjustment Address

D8

Specified Value

The brightness difference
between the section-A and
section-B is minimum

Perform “Bright Adjustment” and “Contrast Adjusstment”
before this adjustment.

Order Page Address Data

Procedure

1

0

01

01

2

4

F1

02

3

4

10

02

4

D

D8

Change the data so that
brightness of the section A
and section B is equal.

5

D

D8

Read the data and this data is
named Dref.

6

Convert Dref to decimal
notation, and obtain Dref’.
(Note 2)

7

Calculate D

D8

’ using

following equations.
(decimal calculation)
D

D8

’ = Dref’ – 13

8

Convert D

D8

’ to a hexadeci-

mal number, and obtain D

D8

.

(Note 2)

9

D

D8

D

D8

Press PAUSE button.

 Refer to table 5-2-2. “Hexadecimal-decimal conversion

table”.

Order Page Address Data

Procedure

1

4

F1

00

2

4

10

00

3

0

01

00

A

A

A

A

B

B

B

B