Video System Adjustments; Chroma Bpf F Adjustment (Db-014 Board); S Video Out Y Level Adjustment - Sony DCR-TRV940 Adjustment Manual

COVER COVER
3-4.

VIDEO SYSTEM ADJUSTMENTS

Before perform the video system adjustments, check that the speci-
fied values of "66MHz/54MHz Origin Oscillation Adjustment" of
"1-3. CAMERA SYSTEM ADJUSTMENTS" is satisfied.
Check that the data of page: 0, address: 10 is "00".
If not, select page: 0, address: 10, and set the data "00".
Adjusting Procedure:
1. Chroma BPF f adjustment
0

2. S VIDEO OUT Y level adjustment

3. S VIDEO OUT chroma level adjustment
4. VIDEO OUT level check
DCR-TRV940/TRV940E/TRV950/TRV950E
1. Chroma BPF f Adjustment (DB-014 board)
0
Set the center frequency of IC7001 chroma band-pass filter.
Mode
Subject
Measurement Point
Measuring Instrument
Adjustment Page
Adjustment Address
Specified value
Note: Check that the data of page: 0, address: 10 is "00".
Adjusting method:
Order Page Address Data
1 0 01
2
3 3 0C
4 C 28
5 C 28
6 3 0C
7
8 0 01
When the data of page: 3, address: 0C, is 04:
A
CH1
CH2
When the data of page: 3, address: 0C, is 00:
CH1
6-61
CAMERA
All black
(Cover the lens with the lens cap)
CH1: Chroma signal terminal of
S VIDEO jack (75 Ω terminated)
CH2: Y signal terminal of
S VIDEO jack (75 Ω terminated)
Oscilloscope
C
28
A = 100 mVp-p or less
B = 200 mVp-p or more
Procedure
01
Check the that the burst
signal (B) is output to the
chroma signal terminal.
04 Press PAUSE button.
Change the data and for
minimum amplitude of the
burst signal level (A). (The
data should be "00" to "0F")
Press PAUSE button.
00 Press PAUSE button.
Check the burst signal (B) to
the specified value.
00
H
H
Fig. 6-3-6
B