5-36
DSC-P71/P71M
Fig. 5-1-18
A
2H
5. PSIG Gray Adjustment (PK-064 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 = 5.0
±
0.1 Vp-p
Adjusting method:
Order Page Address Data
Procedure
1
0
01
01
2
A
02
03
Press PAUSE button
3
4
F1
02
4
A
87
Change the data and set the PSIG
signal level (A) to the specified
value. (Note)
5
A
87
Press PAUSE button.
Note:
Adjust it between data 00 and 7F.
Processing after Completing Adjustment:
Order Page Address Data
Procedure
1
A
02
00
Press PAUSE button
2
4
F1
00
3
0
01
00
6.
D Range Adjustment (PK-064 Board)
Set the D Range of the RGB decoder for driving the LCD to the
specified 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
85
Specified Value
A = 7.96
±
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
85
Change the data and set the
voltage (A) to the specified
value. (Note)
5
A
85
Press PAUSE button.
Note:
Adjust it between data 00 and FF.
Processing after Completing Adjustments:
Order Page Address Data
Procedure
1
A
02
00
Press PAUSE button
2
4
F1
00
3
0
01
00
A
2H
Pedestal
Pedestal
A: Pedestal level difference between 1H period and
previous 1H period.
Fig. 5-1-19