Sony DCR-TRV10 Service Manual - Page 119

Contrast Adjustment PD-110 board, Fig. 5-1-20.

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4. Contrast Adjustment (PD-110 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 Camera Subject Measurement Point Arbitrary Pin 7 of CN2904 (PD VG) on VC-217 board Measuring Instrument Oscilloscope Adjustment Page D Adjustment Address 8C Specified Value A = 2.95 ± 0.05V Adjusting method: 1) Select page: 0, address: 01, and set data: 01. 2) Select page: 3, address: 0C, set data: 20, and press the PAUSE button of the adjustment remote commander. 3) Select page: 3, address: 22, set data: 02, and press the PAUSE button of the adjustment remote commander. 4) Select page: D, address: 8C, change the data and set the voltage (A) between the 0 IRE (pedestal) and 100 IRE to the specified value. 5) Press the PAUSE button of the adjustment remote commander. 6) Select page: 3, address: 22, set data: 00, and press the PAUSE button of the adjustment remote commander. 7) Select page: 3, address: 0C, set data: 00, and press the PAUSE button of the adjustment remote commander. 8) Select page: 0, address: 01, and set data: 00. 100 IRE 5. V-COM Level Adjustment (PD-110 board) Set the common electrode drive signal level of LCD to the specified value. Mode Camera Subject Measurement Point Arbitrary Pin !¡ of CN2904 (PANEL COM) on VC-217 board Measuring Instrument Oscilloscope Adjustment Page D Adjustment Address 83 Specified Value A = 6.50 ± 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: 3, address: 0C, set data: 20, and press the PAUSE button of the adjustment remote commander. 3) Select page: 3, address: 22, set data: 02, and press the PAUSE button of the adjustment remote commander. 4) Select page: D, address: 83, change the data and set the PANEL COM signal level (A) to the specified value. 5) Press the PAUSE button of the adjustment remote commander. 6) Select page: 3, address: 22, set data: 00, and press the PAUSE button of the adjustment remote commander. 7) Select page: 3, address: 0C, set data: 00, and press the PAUSE button of the adjustment remote commander. 8) Select page: 0, address: 01, and set data: 00. A 0 IRE 2H Fig. 5-1-20. A 2H Fig. 5-1-21. 5-33

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5-33
4. Contrast Adjustment (PD-110 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
Camera
Subject
Arbitrary
Measurement Point
Pin
7
of CN2904 (PD VG) on
VC-217 board
Measuring Instrument
Oscilloscope
Adjustment Page
D
Adjustment Address
8C
Specified Value
A = 2.95 ± 0.05V
Adjusting method:
1)
Select page: 0, address: 01, and set data: 01.
2)
Select page: 3, address: 0C, set data: 20, and press the PAUSE
button of the adjustment remote commander.
3)
Select page: 3, address: 22, set data: 02, and press the PAUSE
button of the adjustment remote commander.
4)
Select page: D, address: 8C, change the data and set the voltage
(A) between the 0 IRE (pedestal) and 100 IRE to the specified
value.
5)
Press the PAUSE button of the adjustment remote commander.
6)
Select page: 3, address: 22, set data: 00, and press the PAUSE
button of the adjustment remote commander.
7)
Select page: 3, address: 0C, set data: 00, and press the PAUSE
button of the adjustment remote commander.
8)
Select page: 0, address: 01, and set data: 00.
5. V-COM Level Adjustment (PD-110 board)
Set the common electrode drive signal level of LCD to the specified
value.
Mode
Camera
Subject
Arbitrary
Measurement Point
Pin
!¡
of CN2904 (PANEL COM) on
VC-217 board
Measuring Instrument
Oscilloscope
Adjustment Page
D
Adjustment Address
83
Specified Value
A = 6.50 ± 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: 3, address: 0C, set data: 20, and press the PAUSE
button of the adjustment remote commander.
3)
Select page: 3, address: 22, set data: 02, and press the PAUSE
button of the adjustment remote commander.
4)
Select page: D, address: 83, change the data and set the PANEL
COM signal level (A) to the specified value.
5)
Press the PAUSE button of the adjustment remote commander.
6)
Select page: 3, address: 22, set data: 00, and press the PAUSE
button of the adjustment remote commander.
7)
Select page: 3, address: 0C, set data: 00, and press the PAUSE
button of the adjustment remote commander.
8)
Select page: 0, address: 01, and set data: 00.
Fig. 5-1-20.
Fig. 5-1-21.
0 IRE
100 IRE
A
2H
A
2H