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5-34
100 IRE
Pedestal
A
2H
Fig. 5-1-21.
7. Contrast Adjustment (PD-139 board)
(DCR-TRV725E/TRV730E/TRV828/TRV828E/TRV830/
TRV830E)
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
VTR stop
Signal
No signal
Measurement Point
Pin
3
of CN5502 (VG)
External trigger: Pin
4
of CN5502
(PSIG)
Measuring Instrument
Oscilloscope
Adjustment Page
D
Adjustment Address
AA
Specified Value
2.5 LCD TYPE SO (61k)
A = 2.76 ± 0.07V
2.5 LCD TYPE SO (123k)
A = 2.58 ± 0.07V
3.5 LCD TYPE SO (123k)(NTSC)
A = 2.76 ± 0.07V
3.5 LCD TYPE SO (123k)(PAL)
A = 2.64 ± 0.07V
Note:
Refer to “LCD Type Check” for the discrimination of the LCD type.
Adjusting method:
Order Page Address Data
Procedure
1
0
01
01
Set the data.
2
D
AA
Change the data and set the voltage
(A) between the 100 IRE and 0
IRE (pedestal) to the specified
value.
(The data should be “00” to “7F”.)
3
D
AA
Press PAUSE button.
4
0
01
00
Set the data.
8. Center Level Adjustment (PD-139 board)
(DCR-TRV725E/TRV730E/TRV828/TRV828E/TRV830/
TRV830E)
Set the video signal center level of LCD panel to an appropriate
level.
Mode
VTR stop
Signal
No signal
Measurement Point
Pin
3
of CN5502 (VG)
Measuring Instrument
Digital voltmeter
Adjustment Page
D
Adjustment Address
AB
Specified Value
A = 7.00 ± 0.03Vdc
Adjusting method:
Order Page Address Data
Procedure
1
0
01
01
Set the data.
2
D
AB
Change the data and set the DC
voltage (A) to the specified value.
(The data should be “00” to “7F”.)
3
D
AB
Press PAUSE button.
4
0
01
00
Set the data.
Содержание DCR-TRV725E
Страница 98: ...DCR TRV725E TRV730 TRV730E TRV828 TRV828E TRV830 TRV830E 4 69 4 70 EVF DRIVE USER FUNCTION CF 084 ...
Страница 116: ...5 1 DCR TRV725E TRV730 TRV730E TRV828 TRV828E TRV830 TRV830E SECTION 5 ADJUSTMENTS ...
Страница 204: ...Revision History Ver 1 0 Date 2001 03 History Official Release Contents S M Rev issued 992988331 pdf Reverse ...
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