Pioneer tuning fork Service Manual page 30

Their standards are different as shown on Table 1 to 3.
As to the principle of TV, refer to the Additional Service
Manuals, ARP-675 for SD-25 (NTSC) and ARP-928 for
SD-26 ( P A L ) .
VCR is a device for recording TV signal on tape for
reproduction. TV signal is composed of luminance(Y)- and /
Drum diameter (mm)
Cassette dimensions (mm)
Tape w i d t h (mm)
Tape speed (m/sec)
Writing speed (mm/sec)
Time (min)
Video effective w i d t h (mm)
Video track w i d t h (^m)
Video track angle (Stop)
Video track angle (Play)
Video recording
Video head azimuth
Y-signal recording
FM carrier
White peak (MHz)
Sync tip (MHz)
Deviation (MHz)
Resolution (lines)
fa/2 carrier offset
H-alignment
C-signal recording
Freq. converted (kHz)
Phase process
Burst emphasis
C-emphasis
Carrier
28
8 m m
NTSC PAL
4 0
9 5 x 6 2 . 5 x 1 5
8
1 4 . 3 4 5 2 0 . 0 5 1
3.8 3.1 6 . 9 7 3
9 0 6 0
5.351
3 4 . 4
2 0 . 5
4 ° 5 3 ' 6 "
4 ° 5 4 ' 1 3 . 2 " 4 ° 5 4 ' 5 8 . 8 " 5 ° 0 1 ' 4 2 "
± 1 0 °
5.4
4 . 2
1.2
2 4 0
ON
+ 1H + 2H
7 4 3 . 4 4 4 7 3 2 . 4 2 2
PI (CH2)
PS
ON
ON
( 4 7 - 1 / 8 ) f
(47 + 1 / 4 ) f H
H
Table 1 Specifications of 1/2" and 8mm VCRs (Video)
chr ominance(C)-signals, vertical(V)- and horizontal(H)-
synchronizing(sync)-signals and audio signal. Although the
basic functions of VCR are similar to those of A C R , there
are some important differences. The main differences
between the VCR and A C R are in frequency bandwidth,
recording and playback method, synchronization and
signal format.
(3 (NTSC)
0II
jSI
7 4 . 5
1 5 6 x 9 6 x 2 5
1 2 . 6 5
4 0 2 0 13.3 3 3 . 3 5
6 . 9 9 3 7 . 0 0
3 0 0
6 0 1 2 0 1 2 0
(L-830)
10.2
5 8 . 5 2 9 . 2 1 9 . 5
5 ° 0 0 ' 0 0 "
- -
5 ° 5 8 ' 9 . 9 "
2-head azimuth
± 7 °
FM
4 . 8 (5.2 Hi-fi)
3.6 (4.0 Hi-fi)
1.2
2 5 0 ( 2 4 0 Hi-fi)
OFF ON ON OFF
0 . 7 5 H
*
Frequency down-conversion
6 8 8 . 3 7 4
PI (CH1)
OFF OFF ON
OFF
4 3 ( 3 / 4 ) f
H
VHS(NTSC)
Remark Remark
SP EP
6 2
1 8 8 x 1 0 4 x 2 5
12.65
1 1 . 1 1 6
3 6 0
7
58 19.2
5 ° 5 6 ' 7 . 4 "
-
Guard-bandless
± 6 ° Cross Talkover 1 MHz
4 . 4
3.4
1.0
2 4 0
ON
Against Y cross talk
•*•
^Aligned
6 2 9 . 3 7 1
PS
ON
OFF
4 0 f
H