DSC-P51/P51M
5-34
Fig. 5-1-20
A
2H
6. V-COM Level Adjustment (PK-062 Board)
Set the common electrode drive signal level of LCD to the speci-
fied value.
Mode
PLAY
Signal
Arbitrary
Measurement Point
Pin
8
of CN903
(PANEL_COM)
Measuring Instrument
Oscilloscope
Adjustment Page
A
Adjustment Address
87
Specified Value
A = 5.42
±
0.05 Vp-p
Adjusting method:
Order Page Address Data
Procedure
1
0
01
01
2
A
02
03
Press PAUSE button.
3
4
F1
03
4
A
87
Change the data and set the PSIG
signal level (A) to the specified
value.
5
A
87
Press PAUSE button.
Processing after Completing Adjustment:
Order Page Address Data
Procedure
1
A
02
00
Press PAUSE button.
2
4
F1
00
3
0
01
00
2H
A
Pedestal
10 steps peak
A: Between the pedestal and 10 steps peak
5. Contrast Adjustment (PK-062 Board)
Set the level of the VIDEO signal for driving the LCD to the speci-
fied value.
If deviated, the LCD screen image will be blackish or saturated
(whitish).
Mode
PLAY
Signal
Arbitrary
Measurement Point
Pin
9
of CN903 (VG)
External trigger: Pin
8
of CN903
(PANEL COM)
Measuring Instrument
Oscilloscope
Adjustment Page
A
Adjustment Address
8A
Specified Value
A = 2.65
±
0.05 Vp-p
Adjusting method:
Order Page Address Data
Procedure
1
0
01
01
2
A
02
03
Press PAUSE button.
3
4
F1
03
Change the data and set the
4
A
8A
voltage (A) to the specified
value. (Note)
5
A
8A
Press PAUSE button.
Note:
Adjust it between data 00 and 7F.
Processing after Completing Adjustments:
Order Page Address Data
Procedure
1
A
02
00
Press PAUSE button.
2
4
F1
00
3
0
01
00
Fig. 5-1-19