S-Video Output Level Check (Vd-032 Board) - Sony DSR-25 Service Manual

2. S-Video Output Level Check (VD-032 Board)

Mode E-E
Signal Arbitrary
Measurement Point S VIDEO OUTPUT Y terminal
(75 Ω terminated)
S VIDEO OUTPUT C terminal
(75 Ω terminated)
Measuring Instrument Oscilloscope
Y signal: A = 822 ± 20 mVp-p
Specified Value
C signal: B = 678 ± 20 mVp-p
Switch check:
Set the NTSC/PAL switch on the rear panel to "NTSC" (NTSC
mode) and perform this check. Checking in "PAL" mode is not
necessary.
Adjusting method:
1) Select page: 0, address: 01, and set data: 01.
2) Select page: 3, address: 0C, set data: 01, and press the PAUSE
button of the adjustment remote commander.
3) Confirm that the Y signal level (A) satisfied the specified value.
4) Check that C signal level (B) satisfied the specified value.
5) Make sure that each luminance point of C signal positions at
the mark on the vectorscope.
6) Select page: 3, address: 0C, set data: 00, and press the PAUSE
button.
7) Select page: 0, address: 01, and set data: 00.
Y signal
A
H
C signal
B
Fig. 5-3-9
5-57
DSR-25
H