
5-46
DCR-TRV140/TRV140E/TRV140M
3-4.
VIDEO SYSTEM ADJUSTMENTS
Adjusting Procedure:
1. 27 MHz origin oscillation adjustment
2. S VIDEO OUT Y Level Adjustment
3. S VIDEO OUT chroma level adjustment
4. VIDEO OUT Y, chroma level check
1. 27 MHz Origin Oscillation Adjustment
(VC-273 board)
Set the oscillation frequency of X1501.
If deviated, the synchronization will be disrupted and the color
will become inconsistent.
Mode
CAMERA
Subject
Arbitrary
Measurement Point
Pin
qh
of IC1502
Measuring Instrument
Frequency counter
Adjustment Page
F
Adjustment Address
4D
Specified Value
f=13500000
±
68 Hz
Adjusting method:
Order Page Address Data
Procedure
1
0
01
01
2
F
4D
Change the data and set the
clock frequency (f) to the
specified value.
3
F
4D
Press PAUSE button.
4
0
01
00
VC-273 BOARD
2. S VIDEO OUT Y Level Adjustment (VC-273 board)
Mode
CAMERA
Subject
Arbitrary
Measurement Point
Y signal terminal of S VIDEO OUT
jack (75
Ω
terminated)
Measuring Instrument
Oscilloscope
Adjustment Page
C
Adjustment Address
25
Specified Value
A = 1000
±
20 mV
Adjusting method:
Order Page Address Data
Procedure
1
0
01
01
2
D
10
01
Press PAUSE button.
3
3
0C
02
Press PAUSE button.
4
C
25
Change the data and set the
voltage (A) to the specified
value.
5
C
25
Press PAUSE button.
6
3
0C
00
Press PAUSE button.
7
D
10
00
Press PAUSE button.
8
0
01
00
A: Y signal level
Fig. 5-3-7
H
A
16
IC1502
Fig. 5-3-6