Bright Adjustment (Control Switch Block (Fk) ); Contrast Adjustment (Control Switch Block (Fk) ) - Sony DSC-F505 Service Manual

4. Bright Adjustment (Control Switch Block (FK) )

Set the level of the VIDEO signal for driving the LCD to the specified
value. If deviated, the screen image will be blackish or saturated
(whitish).
Mode PLAY
Signal Arbitrary
Pin 9 of CN002 (VG)
Measurement Point
External trigger: Pin 8 of CN002
(PANEL COM)
Measuring Instrument Oscilloscope
Adjustment Page D
Adjustment Address 80
Specified Value A = 2.17 ± 0.08V
Adjusting method:
1) Select page: 0, address: 01, and set data: 01.
2) Select page: 5, address: F1, set data: 03.
3) Select page: 2, address: 10, and set data: 01.
4) Select page: D, address: 80, change the data and set the voltage
(A) between the pedestal and GAMMA1 limiter level to the
specified value.
5) Press the PAUSE button of the adjustment remote commander.
6) Select page: 2, address: 10, and set data: 00.
7) Select page: 5, address: F1, set data: 00.
8) Select page: 0, address: 01, and set data: 00.
GAMMA1 limiter level
A
Pedestal
Fig.5-1-21.
2H

5. Contrast Adjustment (Control Switch Block (FK) )

Set the level of the VIDEO signal for driving the LCD to the specified
value. If deviated, the 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, set data: 03.
3) Select page: D, address: 84, change the data and set the voltage
(A) between the 10 steps peak and pedestal to the specified
value.
4) Press the PAUSE button of the adjustment remote commander.
5) Select page: 5, address: F1, set data: 00.
6) Select page: 0, address: 01, and set data: 00.
A
Pedestal
5-37
PLAY
Arbitrary
Pin 9 of CN002 (VG)
External trigger: Pin 8 of CN002
(PANEL COM)
Oscilloscope
D
84
A = 3.31 ± 0.07V
10 steps peak
2H
Fig.5-1-22.