5-35
DSC-P71/P71M
3. Backlight Current Adjustment (PK-064 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)
Measuring Instrument
Digital voltmeter
Adjustment Page
A
Adjustment Address
80, 81
Specified Value
L = 0.408
±
0.004 Vp-p
H = 0.748
±
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.
3
A
80
Press PAUSE button.
4
A
81
Change the data and set the
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
4. VCO Adjustment (PK-064 Board)
Set the VCO free-run frequency. If deviated, the LCD screen will
be blurred.
Mode
PLAY
Signal
Arbitrary
Measurement Point
Pin
7
of CN903 (HSY)
Measuring Instrument
Frequency counter
Adjustment Page
A
Adjustment Address
82 (NTSC)
83 (PAL)
Specified Value
T = 15734
±
30 Hz (NTSC)
T = 15625
±
30 Hz (PAL)
Menu setting:
1) VIDEO OUT of SET UP setting
.................................. NTSC (NTSC mode)
(This adjustment must be performed in NTSC mode, so don’t
set the menu setting to “PAL” )
Adjusting method:
Order Page Address Data
Procedure
1
0
01
01
2
4
F1
13
(NTSC)
3
4
1D
82
(PAL)
Change the data and set the
4
A
82
frequency (f) to the
NTSC specified value.
5
A
82
Press PAUSE button.
Change the data and set the
6
A
83
frequency (f) to the
PAL specified value.
7
A
83
Press PAUSE button.
Processing after Completing Adjustments:
Order Page Address Data
Procedure
1
4
F1
00
(NTSC)
2
4
1D
80
(PAL)
3
0
01
00