Sony CCD-TRV26E, Service Manual, Page: 116 / 181

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4. Bright Adjustment (PD-107 board)
Set the level of the VIDEO signal for driving the LCD to the speci-
fied value. If deviated, the screen image will be blackish or satu-
rated (whitish).
Adjusting method:
1) Select page: 0, address: 01, and set data: 01.
2) Select page: 3, address: 01, set data: 55, and press the PAUSE
button of the adjusting remote commander.
3) Select page: 2, address: 7D, and set data: 40.
4) Select page: E, address: CF, change the data and set the voltage
(A) between the pedestal and white to the specified value. (The
data of address: CF should be “41” to “BF”.)
5) Press the PAUSE button of the adjusting remote commander.
6) Select page: 3, address: 01, set data: 00, and press the PAUSE
button of the adjusting remote commander.
7) Select page: 2, address: 7D, and set data: 00.
8) Select page: 0, address: 01, and set data: 00.
Mode VTR stop
Signal No signal
Measurement point Pin
3
of CN5501 (VG) of PD-107
board
External trigger : Pin
4
of CN5501
(PANEL COM)
Measuring instrument Oscilloscope
Adjustment page E
Adjustment address CF
Specified value A = 1.34 ± 0.05V
Fig. 5-1-24.
5. Contrast Adjustment (PD-107 board)
Set the level of the VIDEO signal for driving the LCD to the speci-
fied value. If deviated, the screen image will be blackish or satu-
rated (whitish).
Mode VTR stop
Signal No signal
Measurement point Pin
3
of CN5501 (VG) of PD-107
board
External trigger : Pin
4
of CN5501
(PANEL COM)
Measuring instrument Oscilloscope
Adjustment page E
Adjustment address D3
Specified value A = 2.54 ± 0.07V
Adjusting method:
1) Select page: 0, address: 01, and set data: 01.
2) Select page: 3, address: 01, set data: 55, and press the PAUSE
button of the adjusting remote commander.
3) Select page: 2, address: 7D, and set data: 00.
4) Select page: E, address: D3, change the data and set the voltage
(A) between the pedestal (0 IRE) and 100 IRE to the specified
value.
5) Press the PAUSE button of the adjusting remote commander.
6) Select page: 3, address: 01, set data: 00, and press the PAUSE
button of the adjusting remote commander.
7) Select page: 0, address: 01, and set data: 00.
Fig. 5-1-25.
A
2H
White
Pedestal
100 IRE
0 IRE
A
2H