Sony FD Mavica MVC-FD97, Руководство по обслуживанию

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5-45
5. Contrast Adjustment (FC-85 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 CN803 (VG)
External trigger: Pin
8
of CN803
(COM)
Measuring Instrument Oscilloscope
Adjustment Page D
Adjustment Address D4
Specified Value A = 3.17
±
0.07 Vp-p (TYPE S)
A = 2.35
±
0.07 Vp-p (TYPE C)
Adjusting method:
Order Page Address Data Procedure
1 0 01 01
2 5 F1 03
3 D D4
Change the data and set the
voltage (A) to the specified value.
4 D D4 Press PAUSE button.
Processing after Completing Adjustment:
Order Page Address Data Procedure
1 5 F1 00
2 0 01 00
4. Bright Adjustment (FC-85 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 CN803 (VG)
External trigger: Pin
8
of CN803
(COM)
Measuring Instrument Oscilloscope
Adjustment Page D
Adjustment Address D0
Specified Value A = 2.15
±
0.05 Vp-p (TYPE S)
A = 1.28
±
0.05 Vp-p (TYPE C)
Fig. 5-1-30
Fig. 5-1-31
A
2H
GAMMA1 limiter level
Pedestal
A: Between the pedestal and GAMMA1
limiter level
A
2H
10 steps peak
Pedestal
A: Between the pedestal and 10 steps peak
Adjusting method:
Order Page Address Data Procedure
1 0 01 01
2 2 10 01
3 5 F1 03
4 D D0
Change the data and set the
voltage (A) to the specified value.
5 D D0 Press PAUSE button.
Processing after Completing Adjustment:
Order Page Address Data Procedure
1 5 F1 00
2 2 10 00
3 0 01 00