Sony DCR-TRV230 Service Manual page 172

3-1-5. Alignment Tape
The following table lists alignment tapes which are available.
Use the tape specified in the signal column for each adjustment. If
the type of tape to be used for checking operations is not specified,
use whichever type.
Digital8 alignment tape
Name Usage
SW/OL standard Switching position adjustment
(WR5-2D)
Audio operation check Audio system adjustment
(WR5-3ND),
System operation check Operation check
(WR5-5ND)
Hi8/standard 8 alignment tape
Record
Name -ing
mode
Tracking
Standard 8
WR5-1NP
Video frequency
characteristics Hi8
WR5-7NE
Operation check
(SP mode) Standard 8
WR5-5NSP
Operation check
(SP mode) Hi8
WR5-8NSE
Operation check
(LP mode) Standard 8
WR5-4NL
Operation check
(LP mode) Hi8
WR5-8NLE
AFM stereo
Operation check Standard 8
WR5-9NS
BPF adjustment
Standard 8
WR5-11NS
Tape type
ME ......... Particle type metal tape
MP .......... Evaporated type metal tape
Tape Tape
Usage
type speed
Tape path
adjustment
MP SP Switching
position
adjustment
Frequency
ME SP characteristics
adjustment
MP SP
ME SP
Checking
MP LP operations
ME LP
AFM stereo
MP SP Checking
operations
BPF
MP SP
adjustment
Fig.5-3-3. shows the 75% color bar signals recorded on the alignment
tape.
Note: Measure using the VIDEO terminal (Terminated at 75Ω).
White (100%)
White (75%)
Yellow
0.714V
1V
0.286V
Horizontal sync signal
Color bar signal waveform
White
(75%)
Q
White
(100%)
Fig. 5-3-3. Color Bar Signal of the Alignment Tape
3-1-6. Input/output Level and Impedance
Video input/output
Special stereo minijack, 1Vp-p, 75Ω, unbalanced, sync negative
S video input/output
4-pin mini DIN
Luminance signal: 1Vp-p, 75Ω, unbalanced, sync negative
Chrominance signal: 0.286Vp-p, 75Ω, unbalanced
Audio input/output
Special stereo minijack:
Input: –7.5dBs, input impedance more than 47kΩ
Output:–7.5dBs, (at load impedance 47kΩ), impedance less
than 2.2kΩ
5-41
Cyan
Green
Magenta
Burst signal
Red
Blue
Q
I
I
Black
0.286V