V-Com Level Adjustment (Pd-105 Board); Color Adjustment (Pd-105 Board) - Sony CCD-TRV63 Service Manual

6. V-COM Level Adjustment (PD-105 board)

Set the common electrode drive signal level of LCD to the specified
value.
Mode VTR stop
Signal No signal
Pin 4 of CN5501 (PANEL COM)
Measurement Point
Measuring Instrument Oscilloscope
Adjustment Page E
Adjustment Address D7
Specified Value A = 4.50 ± 0.05V
Note : Perform "Bright Adjustment" and "Contrast Adjustment" before this
adjustment.
Adjusting method:
1) Select page: 0, address: 01, and set data: 01.
2) Select page: 2, address: 01, set data: 55, and press the PAUSE
button of the adjustment remote commander.
3) Select page: 6, address: 7D, and set data: 00.
4) Select page: E, address: D7, change the data and set the PANEL
COM signal level (A) to the specified value.
5) Press the PAUSE button.
6) Select page: 2, address: 01, set data: 00, and press the PAUSE
button.
7) Select page: 0, address: 01, and set data: 00.
2H
Fig. 5-1-21.

7. Color Adjustment (PD-105 board)

Set the color saturation to the standard value. If deviated, the color
will be to dark or light.
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: 2, address: 01, set data: 57, and press the PAUSE
button of the adjustment remote commander.
3) Select page: 6, address: 7D, and set data: 20.
4) Select page: E, address: D2, change the data and set the green
level (A) to the specified value in respect to white.
5) Add 9 to the data of page: E, address: D2, and press the PAUSE
button.
6) Select page: 2, address: 01, set data: 00, and press the PAUSE
button.
7) Select page: 6, address: 7D, and set data: 00.
8) Select page: 0, address: 01, and set data: 00.
White (Reference level)
A
A
5-27
VTR stop
No signal
Pin 3 of CN5501 (VG)
External trigger : Pin 4 of CN5501
(PANEL COM)
Oscilloscope
E
D2
A = –0.03 ± 0.05V
Green
2H
Fig. 5-1-22.