
5-27
DCR-TRV140/TRV140E/TRV140M
3. Contrast Adjustment (PD-156 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
CAMERA
Subject
Arbitrary
Measurement Point
Pin
3
of CN5502 (VG)
External trigger : Pin
4
of CN5502
(PANEL COM)
Measuring Instrument
Oscilloscope
Adjustment Page
D
Adjustment Address
AA
Specified Value
A=3.45
±
0.07 Vp-p (TYPE S model)
A=2.80
±
0.07 Vp-p (TYPE C model)
Adjusting method:
Order Page Address Data
Procedure
1
0
01
01
2
D
AA
Change the data and set the
voltage (A) to the specified
value. (The data of address:
AA, should be “00” to “7F”)
3
D
AA
Press PAUSE button.
4
0
01
00
2. RGB AMP Adjustment (PD-156 board)
Set the D range of the RGB driver 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
3
of CN5502 (VG)
External trigger : Pin
4
of CN5502
(PANEL COM)
Measuring Instrument
Oscilloscope
Adjustment Page
D
Adjustment Address
A5
Specified Value
A=3.60
±
0.05 Vp-p (TYPE S model)
A=2.90
±
0.05 Vp-p (TYPE C model)
Adjusting method:
Order Page Address Data
Procedure
1
0
01
01
2
D
A5
Change the data and set the
voltage (A) to the specified
value. (The data of address:
A5, should be “00” to “3F”)
3
D
A5
Press PAUSE button
4
0
01
00
A: Between the pedestal (0 IRE) and 100 IRE
Fig. 5-1-18
A
2H
100 IRE
Pedestal
A: Between the reversed waveform pedestal and
non-reversed waveform pedestal
Fig. 5-1-17
A
2H
Pedestal
Pedestal