DSC-P7 (serv.man4) - Sony Digital Camera Service Manual (repair manual). Page 37

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DSC-P7
6-35
4.
Bright Adjustment (SW-368 Board)
Set the amplitude of the RGB decoder for driving the LCD to the
specified value.
If deviated, the LCD screen image will be blackish or saturated
(whitish).
Mode
PLAY
Signal
Arbitrary
Measurement Point
Pin 9 of CN706 on SY-77 board
(VG)
External trigger: Pin 8 of CN706
on SY-77 board (PANEL_COM)
Measuring Instrument
Oscilloscope
Adjustment Page
A
Adjustment Address
85
Specified Value
A = 7.96 
±
 0.1 Vp-p
Adjusting method:
Order Page Address Data
Procedure
1
0
01
01
2
A
02
03
Press PAUSE button
3
4
F1
03
4
A
85
Change the data and set the
voltage (A) to the specified
value. (Note)
5
A
85
Press PAUSE button.
Note:
 Adjust it between data 00 and FF.
Processing after Completing Adjustments:
Order Page Address Data
Procedure
1
A
02
00
Press PAUSE button
2
4
F1
00
3
0
01
00
A
2H 
Pedestal 
Pedestal
A: Pedestal level difference between 1H period and
previous 1H period.
Fig. 6-1-20
3. Black Limit Adjustment (SW-368 Board)
Set the maximum amplitude of the RGB decoder for driving the
LCD to the specified value.
If deviated, the LCD screen image will be blackish or saturated
(whitish).
Mode
PLAY
Signal
Arbitrary
Measurement Point
Pin 8 of CN706 on SY-77 board
(PANEL COM)
Measuring Instrument
Oscilloscope
Adjustment Page
A
Adjustment Address
86
Specified Value
A = 8.3 
±
 0.1 Vp-p
Adjusting method:
Order Page Address Data
Procedure
1
0
01
01
2
A
02
03
Press PAUSE button
3
4
F1
08
Change the data and set the
4
A
86
voltage (A) to the specified
value. (Note 1)
5
A
86
Press PAUSE button.
Note 1:
Adjust it between data 00 and 0F.
Note 2:
Check that the adjusted value of D range is within speci-
fied value after this adjustment is performed.
If not, perform the adjustment again.
Processing after Completing Adjustments:
Order Page Address Data
Procedure
1
A
02
00
Press PAUSE button
2
4
F1
00
3
0
01
00
Fig. 6-1-19
A
V
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