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Bright Adjustment (pd-166 Board); Black Limit Adjustment (pd-166 Board) - Sony DCR-IP45 Service Manual

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2. Bright Adjustment (PD-166 Board)

Set the video signal level for driving the LCD to the specified value.
If deviated, the LCD screen will become blackish or saturated
(whitish).
Mode
VTR stop
Signal
No signal
Measurement Point
Pin 1 of CN803 (VG)
Measuring Instrument
Oscilloscope
Adjustment Page
C
Adjustment Address
87
A = 8.60 ± 0.05V
Specified Value
Note: The data of page: 0, address: 10 must be "00".
Adjusting method:
Order Page Address Data
1
0
01
01
2
C
87
3
C
87
4
0
01
00
A
Pedestal
Fig. 5-1-20.
Procedure
Set the data.
Change the data and set the
voltage (A) between the reversed
waveform pedestal and non-
reversed waveform pedestal to the
specified value.
Press PAUSE button.
Set the data.
Pedestal
2H
DCR-IP45/IP45E/IP55/IP55E

3. Black Limit Adjustment (PD-166 Board)

Set the video signal level for driving the LCD driver to an appropriate
level.
Mode
Signal
Measurement Point
Measuring Instrument
Adjustment Page
Adjustment Address
Specified Value
Note: The data of page: 0, address: 10 must be "00".
Adjusting method:
Order Page Address Data
1
0
01
2
C
88
3
C
88
4
0
01
A
V
5-41
VTR stop
No signal
Pin 6 of CN803 (PSIG)
Oscilloscope
C
88
A = 9.10 ± 0.05V
Procedure
01
Set the data.
Change the data and set the PSIG
signal amplitude (A) to the
specified value. (The data should
be "00" to "0F")
Press PAUSE button.
00
Set the data.
Fig. 5-1-21.

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