Psig Gray Adjustment (Pd-166 Board); Contrast Adjustment (Pd-166 Board) - Sony DCR-IP45 Service Manual

DCR-IP45/IP45E/IP55/IP55E

4. PSIG GRAY Adjustment (PD-166 Board)

Set the PSIG signal level 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 89
3 C 89
4 0 01
VTR stop
No signal
Pin 6 of CN803 (PSIG)
Oscilloscope
C
89
A = 5.00 ± 0.05V
Procedure
01 Set the data.
Change the data and set the PSIG
signal level (A) to the specified
value.
(The data should be "00" to "7F".)
Press PAUSE button.
00 Set the data.
2H
Fig. 5-1-22.

5. Contrast Adjustment (PD-166 Board)

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
Note: The data of page: 0, address: 10 must be "00".
Adjusting method:
Order Page Address Data
1 0 01
2 C 8C
3 C 8C
4 0 01
5
A
3 steps peak
A
Pedestal
5-42
VTR stop
No signal
Pin 1 of CN803 (VG)
Oscilloscope
C
8C
A = 3.70 ± 0.05V
Procedure
01 Set the data.
Change the data and set the
voltage (A) between the 3 steps
peak and pedestal to the specified
value.
(The data should be "00" to "7F".)
Press PAUSE button.
00 Set the data.
Check that the specified value of
"Bright Adjustment" is satisfied.
2H
Fig. 5-1-23.