Sony DSR-20MD, Service Manual

Page: 168 / 225

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3. Analog E-E Y Signal Output Level Check
(VA-102 Board)
Mode E-E
Signal Color bar (S VIDEO input) (Note 1)
Measurement Point Pin
qd
of CN401 (CL436)
Measuring Instrument Oscilloscope
Specified Value
A = 0.714 ± 0.02 V (NTSC)
A = 0.700 ± 0.02 V (PAL)
4. Analog E-E Chroma Signal Output Level Check
(VA-102 Board)
Mode E-E
Signal Color bar (S VIDEO input) (Note 1)
Measurement Point Pin
qa
of IC401 (CL435)
Measuring Instrument Oscilloscope
Specified Value
A = 286 ± 20 mV (NTSC)
A = 300 ± 20 mV (PAL)
Note 1: Set “S VIDEO” mode with the INPUT SELECT button
on the front panel.
Note 2:
Terminate the Y signal terminal of the S video output
terminal using a 75
Ω
resistor.
75
Ω
resistor (Parts code: 1-247-804-11)
Checking method:
1) Check that the Y signal level (A) is the specified value.
For NTSC model
For PAL model
Fig. 5-3-15.
Note 1:
Set “S VIDEO” mode with the INPUT SELECT button
on the front panel.
Note 2: Terminate the Chroma signal terminal of the S video out-
put terminal using a 75
Ω
resistor.
75
Ω
resistor (Parts code: 1-247-804-11)
Checking method:
1) Check that the burst signal level (A) is the specified value.
For NTSC model
For PAL model
Fig. 5-3-16.
White (100%)
A
H
White (100%)
A
H
A
H
A
H