Alignment Tapes; Input/Output Level And Impedance - Sony DCR-VX2000 Service Manual

3-1-5. Alignment Tapes

Use the alignment tapes shown in the following table.
Use tapes specified in the signal column of each adjustment.
Name
Tracking standard (XH2-1)
SW/OL standard (XH2-3)
Audio operation check
(XH5-3 (NTSC), XH5-3P (PAL))
System operation check
(XH5-5 (NTSC), XH5-5P (PAL))
BIST check
(XH5-6 (NTSC), XH5-6P (PAL))
Fig. 5-3-3 shows the 75% color bar signals recorded on the alignment
tape for Audio Operation Check.
Note: Measure with video terminal (Terminated at 75 Ω)
For NTSC model
White (75%)
0.714V
1V
0.286V
Horizontal sync signal
Color bar signal waveform
For PAL model
White (100%)
0.7V
1V
0.3V
Horizontal sync signal
Color bar signal waveform

3-1-6. Input/Output Level and Impedance

Video input/output
Phono jack
1 Vp-p, 75 Ω unbalanced,
Video signal:
sync negative
S video input/output
4-pin mini DIN
1 Vp-p, 75 Ω unbalanced,
Luminance signal:
sync negative
Chrominance signal: 0.286 Vp-p, 75 Ω unbalanced (NTSC)
: 0.300 Vp-p, 75 Ω unbalanced (PAL)
Use
Tape path adjustment
Switching position adjustment
Audio system adjustment
Operation check
BIST check
White (100%)
Burst signal
Q
I
Burst signal
Fig. 5-3-3. Color bar signal of alignment tapes
(75%)
0.286V
0.3V
(100%)
Audio input/output
Phono jack
Input level: 327mV
Input impedance: More than 47kΩ
Output level: 327 mV (at load impedance 47 kΩ)
Output impedance: Below 2.2 kΩ
5-41
Q Black
I
White
(100%)
Color bar pattern
Color bar pattern