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5-34
DSC-P31/P31M
2. Backlight Current Adjustment (PK-062 Board)
Adjust electric current value of backlight in two modes.
Mode
PLAY
Signal
Arbitrary
Measurement Point
Pin 6 of CN903 (BL-L2)
Pin 1 of CN903 (BL-L1)
Pin 1 of CN903 (BL-L1)
Measuring Instrument
Digital voltmeter
Adjustment Page
A
Adjustment Address
80, 81
Specified Value
L = 0.373
± 0.004 Vp-p
H = 0.714
± 0.004 Vp-p
Adjusting method:
Order Page Address Data
Procedure
1
0
01
01
2
A
80
Change the data and set the
voltage (L) to the specified
value.
voltage (L) to the specified
value.
3
A
80
Press PAUSE button.
4
A
81
Change the data and set the
voltage (H) to the specified
value.
voltage (H) to the specified
value.
5
A
81
Press PAUSE button.
Processing after Completing Adjustments:
Order Page Address Data
Procedure
1
0
01
00
1.
LCD Initial Data Input
Mode
PLAY
Signal
Arbitrary
Adjustment Page
A
Adjustment Address
62, 63, 80 to 8F, A3, A4
Adjusting method:
1) Select page: 0, address: 01, and set data: 01.
2) Select page: A, and enter the data given in the following table.
1) Select page: 0, address: 01, and set data: 01.
2) Select page: A, and enter the data given in the following table.
Note:
Press the PAUSE button each time the data are set, as the
data are written to non-volatile memory (EEPROM).
data are written to non-volatile memory (EEPROM).
Address
Data
Remark
62
9A
Fixed value
63
66
80
9B
Backlight current adj.(BL L)
81
3C
Backlight current adj.(BL H)
82
6B
VCO adj. (NTSC)
83
71
VCO adj. (PAL)
84
66
V-COM DC adj.
85
15
D Range adj.
86
08
Fixed value
87
83
V-COM adj.
88
90
White Blance adj.
89
83
8A
2E
Contrast adj.
8B
00
8C
05
8D
0C
8E
56
Fixed value
8F
1F
A3
23
A4
04
Processing after Completing Adjustments:
1) Select page: 0, address: 01, and set data: 00.
1) Select page: 0, address: 01, and set data: 00.
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