Sony Handycam DCR-TRV11, Service Manual

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5-37
2. RGB AMP Adjustment (PD-123 board)
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).
Mode Camera
Subject Arbitrary
Measurement Point Pin
7
of CN009 (PANEL VG) of
VC-240/241 board
Ext. trigger: Pin
qa
of CN009
(PANEL COM)
Measuring Instrument Oscilloscope
Adjustment Page D
Adjustment Address A5
Specified Value A = 3.70 ± 0.05V (LCD TYPE SH NTSC)
A = 3.45 ± 0.05V (LCD TYPE SH PAL)
A = 3.50 ± 0.05V (LCD TYPE CA)
Note: LCD TYPE SH NTSC: DCR-TRV11
LCD TYPE SH PAL: DCR-TRV11E
LCD TYPE CA: DCR-TRV20
Adjusting method:
1)
Select page: 0, address: 01, and set data: 01.
2) Select page: D, address: A5, change the data and set the voltage
(A) between the reversed waveform pedestal and non-reversed
waveform pedestal to the specified value.
(The data of address: A5 should be “00” to “3F”.)
Note: The RGB AMP adjustment mode is set up automatically, so the
3 steps signal is displayed on the LCD screen.
3) Press the PAUSE button of the adjustment remote commander.
4) Select page: 0, address: 01, and set data: 00.
3. Contrast Adjustment (PD-123 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 CN009 (PANEL VG) of
VC-240/241 board
Ext. trigger: Pin
qa
of CN009
(PANEL COM)
Measuring Instrument Oscilloscope
Adjustment Page D
Adjustment Address AA
Specified Value A = 3.30 ± 0.05V (LCD TYPE SH NTSC)
A = 3.25 ± 0.05V (LCD TYPE SH PAL)
A = 3.45 ± 0.05V (LCD TYPE CA)
Adjusting method:
1)
Select page: 0, address: 01, and set data: 01.
2) Select page: D, address: AA, change the data and set the voltage
(A) between the pedestal (0 IRE) and 100 IRE to the specified
value.
(The data of address: AA should be “00” to “7F”.)
Note: The contrast adjustment mode is set up automatically, so the 3
steps signal is displayed on the LCD screen.
3) Press the PAUSE button of the adjustment remote commander.
4) Select page: 0, address: 01, and set data: 00.
Pedestal
Pedestal
A
2H
Pedestal
100IRE
A
2H
Fig. 5-1-18. Fig. 5-1-19.