V-Com Adjustment (Pd-179 Board); White Balance Adjustment (Pd-179 Board) - Sony DSC-F717 Manual

DSC-F717

7. V-COM Adjustment (PD-179 Board)

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
Signal
Measurement Point
Measuring Instrument
Adjustment Page
Adjustment Address
Specified Value
Note: Perform "D Range Adjustment", "Contrast Adjustment"
and "V-COM Level Adjustment" before this adjustment.
Adjusting method:
Order Page Address Data
1 0 01
2 A 02
3 4 F1
4 A 84
5 A 84
Processing after Completing Adjustments:
Order Page Address Data
1 A 02
2 4 F1
3 0 01
PLAY
Arbitrary
Check on LCD screen
A
84
The brightness difference
between the section-A and
section-B is minimum
Procedure
01
13 Press PAUSE button.
82
Change the data so that
brightness of the section A
and section B is equal.
Press PAUSE button.
Procedure
00 Press PAUSE button.
00
00
B A
A
B
B A
A B
Fig. 6-1-22

8. White Balance Adjustment (PD-179 Board)

Correct the white balance.
If deviated, the LCD screen color cannot be reproduced.
Mode
Signal
Measurement Point
Measuring Instrument
Adjustment Page
Adjustment Address
Specified Value
Note 1: Check the white balance only when replacing the fol-
lowing parts. If necessary, adjust them.
1. LCD panel
2. Light induction plate
3. IC801
Adjusting method:
Order Page Address Data
1 0 01
2 A 02
3 4 F1
88
4 A
89
5
88
6 A
89
Note 2: To write in the non-volatile memory (EEPROM), press
the PAUSE button each time to set the data.
Processing after Completing Adjustments:
Order Page Address Data
1 A 02
2 4 F1
3 0 01
6-42
PLAY
Arbitrary
Check on LCD screen
A
88, 89
LCD screen must not be colored
Procedure
01
13 Press PAUSE button.
02
90 Press PAUSE button.
83 (Initial value)
Check that the LCD screen is
not colored. If not colored,
proceed to "Processing after
Completing Adjustments".
Change the data so that the
LCD screen is not colored.
(Note 2)
Procedure
00 Press PAUSE button.
00
00