Read Sony DCR-TRV270E / DCR-TRV280 / DCR-TRV285E (serv.man3) Service Manual online
6-43
DCR-TRV270E/TRV280/TRV285E
2. Composite Video Out Level Adjustment
(VC-344 Board)
Mode
CAMERA
Subject
Arbitrary
Measurement Point
Video terminal of A/V OUT jack
(75
(75
Ω terminated)
Adjustment Page
C
Adjustment Adress
25, 26, 27
Measuring Instrument
Oscilloscope
Specified value
Sync level:
A = 1 V
± 20 mVp-p (NTSC)
A = 1 V
± 20 mVp-p (PAL)
Cr level:
B = 714
± 14 mVp-p (NTSC)
B = 700
± 14 mVp-p (PAL)
Cr level:
C = 714
± 14 mVp-p (NTSC)
C = 700
± 14 mVp-p (PAL)
Burst level:
D = 286
± 6 mVp-p (NTSC)
D = 300
± 6 mVp-p (PAL)
Note 1: Check that the data of page: 0, address: 10 is “00”.
Note 2: NTSC model: DCR-TRV280
Note 2: NTSC model: DCR-TRV280
PAL model: DCR-TRV270E/TRV285E
Adjusting method:
Order Page Address Data
Procedure
1
0
01
01
2
8
A0
Set the bit value of bit3 is
“1”, and press PAUSE
button. (Note 3)
“1”, and press PAUSE
button. (Note 3)
3
3
0C
02
Press PAUSE button.
4
C
25
Change the data and set the Y
signal level (A) to the
specified value.
signal level (A) to the
specified value.
5
C
25
Press PAUSE button.
6
C
26
Change the data and set the
Cr signal level (B) to the
specified value.
Cr signal level (B) to the
specified value.
7
C
26
Press PAUSE button.
8
C
27
Change the data and set the
Cb signal level (C) to the
specified value.
Cb signal level (C) to the
specified value.
9
C
27
Press PAUSE button.
10
Check the burst signal (D) to
the specified value.
the specified value.
11
8
A0
Set the bit value of bit3 is
“0”, and press PAUSE
button. (Note 3)
“0”, and press PAUSE
button. (Note 3)
12
3
0C
00
Press PAUSE button.
13
0
01
00
Note 3: For the bit values, refer to “6-4. SERVICE MODE”, “4-
3. 3. Bit Value Discrimination”.
Fig. 6-3-4
H
A
B
0.28
µsec (NTSC)
0.23
µsec (PAL)
0.28
µsec (NTSC)
0.23
µsec (PAL)
C
D
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