Contrast Adjustment (Pd-137 Board); Color Adjustment (Pd-137 Board) - Sony DSC-P1 Service Manual And Parts List

5. Contrast Adjustment (PD-137 Board)

Set the level of the VIDEO signal for driving the LCD to the
specified value.
If deviated, the LCD screen image will be blackish or saturated
(whitish).
Mode
Signal
Measurement Point
Measuring Instrument
Adjustment Page
Adjustment Address
Specified Value
Adjusting method:
Order Page Address Data
1 0
2 5
3 D
4 D
Processing after Completing Adjustments:
Order Page Address Data
1 5
2 0
A
Pedestal
A: Between the pedestal and 10 setps peak
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PLAY
Arbitrary
Pin 9 of CN881 (VG)
External trigger: Pin 8 of CN881
(PEARL COM)
Oscilloscope
D
D4
A = 2.50 ± 0.05 Vp-p (TYPE ST)
A = 2.24 ± 0.05 Vp-p (TYPE SA)
Procedure
01 01
F1 03
Change the data and set the
D4 voltage (A) to the specified
value.
D4 Press PAUSE button.
Procedure
F1 00
01 00
10 steps peak
2H
Fig. 5-1-24
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6. Color Adjustment (PD-137 Board)

Set the color saturation to the standard value.
If, deviated, the color will be dark or light.
Mode
Signal
Measurement Point
Measuring Instrument
Adjustment Page
Adjustment Address
Specified Value
Adjusting method:
Order Page Address Data
1 0 01
2 5 F1
2 D D1
4 D D1
Processing after Completing Adjustments:
Order Page Address Data
1 5 F1
2 0 01
White 100%
Green
A
A: Between the white 100% (Reference level) and green
Fig. 5-1-25
5-30
PLAY
Arbitray
Pin 9 of CN881 (VG)
External trigger: Pin 8 of CN881
(PEARL COM)
Oscilloscope
D
D1
A = 444 ± 50 mVp-p (TYPE ST)
A = 308 ± 50 mVp-p (TYPE SA)
Procedure
01
04
Change the data and set the
voltage (A) to the specified
value.
Press PAUSE button.
Procedure
00
00
2H