Contrast Adjustment (Pd-128 Board); Color Adjustment (Pd-128 Board) - Sony DSC-S70 Service Manual

5. Contrast Adjustment (PD-128 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
Signal
Measurement Point
Measuring Instrument
Adjustment Page
Adjustment Address
Specified Value
Adjusting method:
1) Select page: 0, address: 01, and set data: 01.
2) Select page: 5, address: F1, and set data: 03.
3) Select page: D, address: D4, change the data and set the volt-
age (A) between the pedestal and 10 steps peak to the speci-
fied value.
4) Press the PAUSE button of the adjusting remote commander.
Processing after Completing Adjustments:
1) Select page: 5, address: F1, and set data: 00.
2) Select page: 0, address: 01, and set data: 00.
10 steps peak
A
Pedestal
Fig. 5-1-22
PLAY
Arbitrary
Pin 9 of CN709 (VG) on SY-58
board
External trigger: Pin 8 of CN709
(PANEL COM) on SY-58 board
Oscilloscope
D
D4
A = 3.31 ± 0.07 Vp-p
2H

6. Color Adjustment (PD-128 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:
1) Select page: 0, address: 01, and set data: 01.
2) Select page: 5, address: F1, and set data: 04.
3) Select page: D, address: D1, change the data and set the volt-
age (A) between the white 100% (Reference level) and green
to the specified value.
4) Press the PAUSE button of the adjusting remote commander.
Processing after Completing Adjustments:
1) Select page: 5, address: F1, and set data: 00.
2) Select page: 0, address: 01, and set data: 00.
White 100%
Green
A
5-28
PLAY
Arbitrary
Pin 9 of CN709 (VG) on SY-58
board
External trigger: Pin 8 of CN709
(PANEL COM) on SY-58 board
Oscilloscope
D
D1
A = 544 ± 50 mVp-p
2H
Fig. 5-1-23