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For LCD Type SH
For LCD Type SO
3. RGB AMP Adjustment (PD-138 board)
(DCR-TRV730)
Set the D range of the RGB decoder used to drive the LCD to the
specified value. If deviated, the LCD screen will become blackish
or saturated (whitish).
specified value. If deviated, the LCD screen will become blackish
or saturated (whitish).
4. RGB AMP Adjustment (PD-139 board)
(DCR-TRV725E/TRV730E/TRV828/TRV828E/TRV830/
TRV830E)
TRV830E)
Set the D range of the RGB decoder used to drive the LCD to the
specified value. If deviated, the LCD screen will become blackish
or saturated (whitish).
specified value. If deviated, the LCD screen will become blackish
or saturated (whitish).
Mode
VTR stop
Signal
No signal
Measurement Point
Pin 3 of CN5502 (VG)
External trigger: Pin 4 of CN5502
(PSIG)
External trigger: Pin 4 of CN5502
(PSIG)
Measuring Instrument
Oscilloscope
Adjustment Page
D
Adjustment Address
A5
Specified Value
2.5 LCD TYPE SO (61k)
A = 7.58 ± 0.05V
2.5 LCD TYPE SO (123k)
A = 7.46 ± 0.05V
3.5 LCD TYPE SO (NTSC)
A = 7.52 ± 0.05V
3.5 LCD TYPE SO (PAL)
A = 3.76 ± 0.05V
Note:
Refer to “LCD Type Check” for the discrimination of the LCD type.
5. Black Limit Adjustment (PD-139 board)
(DCR-TRV725E/TRV730E/TRV828/TRV828E/ TRV830/
TRV830E)
TRV830E)
Set the dynamic range of the LCD driver to an appropriate level.
If deviated, the LCD screen will become blackish or saturated
(whitish).
If deviated, the LCD screen will become blackish or saturated
(whitish).
Mode
VTR stop
Signal
No signal
Measurement Point
Pin 4 of CN5502 (PSIG)
Measuring Instrument
Oscilloscope
Adjustment Page
D
Adjustment Address
A6
Specified Value
A = 8.10 ± 0.08V
Note:
NTSC model: DCR-TRV828/TRV830
PAL model: DCR-TRV725E/TRV730E/TRV828E/TRV830E
PAL model: DCR-TRV725E/TRV730E/TRV828E/TRV830E
6. Contrast Adjustment (PD-138 board)
(DCR-TRV730)
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).
value. If deviated, the screen image will be blackish or saturated
(whitish).
Page
5-32
5-33
:
Added portion.
:
Changed portion.
3. RGB AMP Adjustment (PD-138 board)
(DCR-TRV730 (LCD TYPE SH) )
4. RGB AMP Adjustment (PD-139 board)
(DCR-TRV725E/TRV730E/TRV828/TRV828E/TRV830/
TRV830E /TRV730 (LCD TYPE SO) )
TRV830E /TRV730 (LCD TYPE SO) )
Mode
VTR stop
Signal
No signal
Measurement Point
Pin 3 of CN5502 (VG)
External trigger: Pin 4 of CN5502
(PSIG)
External trigger: Pin 4 of CN5502
(PSIG)
Measuring Instrument
Oscilloscope
Adjustment Page
D
Adjustment Address
A5
Specified Value
2.5 LCD TYPE SO (61k)
A = 7.58 ± 0.05V
2.5 LCD TYPE SO (123k)
A = 7.46 ± 0.05V
3.5 LCD TYPE SO (NTSC)
A = 7.52 ± 0.05V
3.5 LCD TYPE SO (PAL)
A = 7.58 ± 0.05V
Note:
Refer to “LCD Type Check” for the discrimination of the LCD type.
5. Black Limit Adjustment (PD-139 board)
(DCR-TRV725E/TRV730E/TRV828/TRV828E/ TRV830/
TRV830E /TRV730 (LCD TYPE SO) )
TRV830E /TRV730 (LCD TYPE SO) )
Note:
NTSC model: DCR-TRV828/TRV830 /TRV730
PAL model: DCR-TRV725E/TRV730E/TRV828E/TRV830E
PAL model: DCR-TRV725E/TRV730E/TRV828E/TRV830E
6. Contrast Adjustment (PD-138 board)
(DCR-TRV730 (LCD TYPE SH) )
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