Video System Adjustments; S Video Out Y Level Adjustment (Vc-370 Board); S Video Out Chroma Level Adjustment - Sony DCR-PC350 Service Manual

3-4.

VIDEO SYSTEM ADJUSTMENTS

Note1: Before perform the video system adjustments, check that the
specified value of "54MHz/67.5 MHz Origin Oscillation
Adjustment" of "CAMERA SYSTEM ADJUSTMENT" is
satisfied.
And check that the data of page: 0, address: 10 is "00". If not, set
data: 00 to this address.
Note2: NTSC model : DCR-PC350
PAL model : DCR-PC350E
Note3: The lens block (CD-537 board) must be connected when
performing the adjustments.

1. S VIDEO OUT Y Level Adjustment (VC-370 Board)

Mode
Subject
Measurement Point
Measuring Instrument
Adjustment Page
Adjustment Address
Specified Value
Note: The data of page: 0, address: 10 must be "00".
Switch setting:
DEMO MODE (PICT. APPLI menu) ...................................... OFF
Adjusting method:
Order Page Address Data
1 0 01
2 8 4C
3 3 0C
4 C 25
5 C 25
6 3 0C
7 8 4C
8 0 01
DCR-PC350/PC350E
CAMERA–TAPE
Arbitrary
Y signal terminal of S VIDEO jack
(75Ω terminated)
Oscilloscope
C
25
A = 1000 ± 14mV
Procedure
01 Set the data.
94 Set the data, and press PAUSE
button.
02 Set the data, and press PAUSE
button.
Change the data and set the Y
signal level (A) to the specified
value.
Press PAUSE button.
00 Set the data, and press PAUSE
button.
96 Set the data, and press PAUSE
button.
00 Set the data.
H
Fig. 6-3-5.
2. S VIDEO OUT Chroma Level Adjustment (VC-370 Board)
Mode
Subject
Measurement Point
Measuring Instrument
Adjustment Page
Adjustment Address
Specified Value
Note: The data of page: 0, address: 10 must be "00".
Switch setting:
DEMO MODE (PICT. APPLI menu) ...................................... OFF
Adjusting method:
Order Page Address Data
1 0 01
2 8 4C
3 3 0C
4 C 26
5 C 26
6 C 27
7 C 27
8
9 3 0C
10 8 4C
11 0 01
A
0.28 µsec (NTSC)
0.23 µsec (PAL)
6-55
CAMERA-TAPE
Arbitrary
Chroma signal terminal of S VIDEO
jack (75Ω terminated)
External trigger: Y signal terminal of
S VIDEO jack
Oscilloscope
C
26, 27
: A = 714 ± 14mV (NTSC)
Cr level
A = 700 ± 14mV (PAL)
: B = 714 ± 14mV (NTSC)
Cb level
B = 700 ± 14mV (PAL)
Burst level : C = 286 ± 6mV (NTSC)
C = 300 ± 6mV (PAL)
Procedure
01 Set the data.
94 Set the data, and press PAUSE
button.
02 Set the data, and press PAUSE
button.
Change the data and set the Cr signal
level (A) to the specified value.
Press PAUSE button.
Change the data and set the Cb signal
level (B) to the specified value.
Press PAUSE button.
Check that the burst signal level
(C) is satisfied the specified value.
00 Set the data, and press PAUSE
button.
96 Set the data, and press PAUSE
button.
00 Set the data.
H
A B
0.28 µsec (NTSC)
0.23 µsec (PAL)
Fig. 6-3-6.
C