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CCD-TRV107E, CCD-TRV108E, CCD-TRV208E, CCD-TRV408E - Sony Movie Service Manual (repair manual). Page 124

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5-25
CCD-TRV107E/TRV108E/TRV208E/TRV408E
2. RGB AMP Adjustment (PD-156 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
VTR stop
Signal
No signal
Measurement Point
Pin 3 of CN5502 (VG)
External trigger: Pin 4 of CN5502
(PANEL COM)
Measuring Instrument
Oscilloscope
Adjustment Page
7
Adjustment Address
46
Specified Value
A = 3.62 ± 0.05V
Adjusting method:
Order Page Address Data
Procedure
1
0
01
01
Set the data.
2
7
46
Change the data and set the
voltage (A) between the reversed
waveform pedestal and non-
reversed waveform pedestal to the
specified value.
(The data should be “00” to “3F”.)
3
7
46
Press PAUSE button.
4
0
01
00
Set the data.
Fig. 5-1-16.
Pedestal
Pedestal
A
2H
3. Contrast Adjustment (PD-156 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
VTR stop
Signal
No signal
Measurement Point
Pin 3 of CN5502 (VG)
External trigger: Pin 4 of CN5502
(PANEL COM)
Measuring Instrument
Oscilloscope
Adjustment Page
7
Adjustment Address
4B
Specified Value
A = 3.52 ± 0.07V
Adjusting method:
Order Page Address Data
Procedure
1
0
01
01
Set the data.
2
7
4B
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
7
4B
Press PAUSE button.
4
0
01
00
Set the data.
Fig. 5-1-17.
100 IRE
Pedestal
A
2H
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