Sony Cyber-shot DSC-S70, Service Manual

Page: 76 / 102

5-27
A
2H
Pedestal
Pedestal
A: Pedestal level difference between 1H period and
previous 1H period.
Fig. 5-1-20
4. Bright 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 PLAY
Signal Arbitrary
Measurement Point Pin
9
of CN709 (VG) on SY-58
board
External trigger: Pin
8
of CN709
(PANEL COM) on SY-58 board
Measuring Instrument Oscilloscope
Adjustment Page D
Adjustment Address D0
Specified Value A = 1.85 ± 0.08 Vp-p
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: 2, address: 10, and set data: 01.
4) Select page: D, address: D0, change the data and set the volt-
age (A) between the pedestal and GAMMA 1 limiter level to
the specified value.
5) 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: 2, address: 10, and set data: 00.
3) Select page: 0, address: 01, and set data: 00.
Fig. 5-1-21
A
2H
GAMMA1 limiter level
Pedestal
3. D Range Adjustment (PD-128 Board)
Set the D range of the LCD driver to the specified value.
If deviated, the LCD screen will became blackish or saturated
(whitish)
Mode PLAY
Signal Arbitrary
Measurement Point Pin 9 of CN709 (VG) on SY-58
board
External trigger: Pin
8
of CN709
(PANEL COM) on SY-58 board
Measuring Instrument Oscilloscope
Adjustment Page D
Adjustment Address D5
Specified Value A = 3.62 ± 0.05 Vp-p
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: D5, change the data and set the volt-
age (A) between the reversed waveform pedestal and non-re-
versed waveform pedestal 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.