Alignment Tapes; Input/Output Level And Impedance - Sony DCR-TRV40 Service Manual

DCR-TRV40/TRV40E/TRV50/TRV50E
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))
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 75Ω)
For NTSC model
White (75%)
0.714V
1V
0.286V
Horizontal sync signal
For PAL model
White (100%)
0.7V
1V
0.3V
Horizontal sync signal
3-1-6.

Input/Output Level and Impedance

Video input/output
Special stereo mini jack
Video signal:
S video input/output
4-pin mini DIN
Luminance signal:
Chrominance signal: 0.286 Vp-p, 75Ω unbalanced (NTSC)
Use
Tape path adjustment
Switching position adjustment
Audio system adjustment
Operation check
White (100%)
Q
I
Color bar signal waveform
Color bar signal waveform
Fig. 5-3-3. Color bar signal of alignment tapes
1 Vp-p, 75Ω unbalanced,
sync negative
1 Vp-p, 75Ω unbalanced,
sync negative
: 0.300 Vp-p, 75Ω unbalanced (PAL)
Burst signal
(75%)
0.286V
0.3V
(100%)
Burst signal
Audio input/output
Special stereo mini jack
Input level: 327mV
Input impedance: More than 47kΩ
Output level: 327mV (at load impedance 47kΩ)
Output impedance: Below 2.2kΩ
5-48
Q I Black
White
(100%)
Color bar pattern
Color bar pattern