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BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 and FIG. 2 explain the connection between a
conventional two-channel stereo device and an adapter, respectively. FIG. 3 explains one
embodiment of the connection device according to the present invention. It is structure
explanatory drawing of soda. 41 ...... 2-channel stereo apparatus (main body), 44 ...... first channel
amplifier, 45 ...... second channel amplifier, 46 ...... first DIN socket, 47 иииииииии Shield terminal, 48,
49 ииииииииии Input terminal, 50, 51 ииииииии Output terminal, 51 ииииии Adapter, 57 иии и и и и и и и и и и и и и и и и и и и и и
и и и и и и и и и и и и и и To the third channel amplifier 60 to the fourth channel amplification 60 и и и и и и и и
Shield terminal 2 channel input terminals 68 и и и и и и и и и 3rd channel input terminal Fourth of
channel manpower end. 1 1 3 48-2022 (2) FIG. -1---1-15r-w, I sub 1 1 347, [co = king hai (1 '35'.
+ 371 @ J Fig. 2 U: Fig. 3 Fig. 44 41-1-1-1-1-1 1 Nini: child E = Nini 1-1-7] ++ 'J ?--1--7 --- 15 B
673 CJ 67 69 L one-- one-one one-one one-one-one-one eta "4 1
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a four-channel
stereo system comprising an adapter in an S-channel stereo system, and more particularly to a
junction 1IIIIIIW for connecting these two-channel stereo system to an adapter. Although the
popularization of the four channel stereo device has been remarkable, it has been effective to
construct this four channel stereo device by having S channel amplifiers. Therefore, it is possible
to provide an adapter with a matrix circuit and one additional channel amplifier in this 8-channel
stereo device, and to configure a ratio of 42: V: 2 :, L / -j%. Such a four-channel stereo device is
shown in FIG. 1, that is, 1-1 is a three-channel stereo device (hereinafter referred to as the main
body), and the first and second ones having two amplifying portions 12.11, respectively. Channel
amplifier 14. 20. IM operates at its input end by means of a switch, a switch III, IF the L ? ? ?
? and 1 input end 18 and 19 of the record and the @ 1 and 3rd channel input ends of the tape
20. : 21. It is provided to be able to switch and connect between them. In addition, in the main
body 1-1, three VID terminals 22 are used respectively as ?**: tt: new ;: Nini :: Ninini: In this
case, the input terminal 22. 24 of the DIN socket 21 is Said! [The first and second channel input
terminals 10.11 are connected to each other, and the output terminal 25 ░ 2 # is connected to
the output terminals of the respective amplification units is and ip of the first and S channel
amplifiers 14 and III. . On the other hand, the adapter 2-8 comprises the matrix circuit 2g and
the eighth and fourth channel amplifiers 10.11, and the eighth and 1? и и и. A switch 31
interlocking between the output end 32.33 of the matrix circuit 29 and the eighth and fourth
channel input ends 35 of the tape; by 3F: 2 ::? i :::: 7; :: b :, ::: Wealth-two-two ': two
two-two two-two two-two two-two: ? :: [: ?: ? 7.9 ? 3 three 51. ??????????????
? However, the main unit 1-1, the adapter 2-8, and the connection cable 1 in the abovementioned channel stereo device 1 == ? 2: ? ?, T: 1y ;, 2b 2z 2: 2: 2 11! In the following, the
main body 11 is not necessarily provided with the PIN terminals of the recording output end, ta
and ss, so if there is no such terminal, the first and third channels of the main body J-J can be
increased. It is necessary to modify the width devices 14 and 11 to provide t7. ',', B ', jt?
j7T, j, "," 2 "" & bNII * "(", ? 9, me, DIN socket 21 (this DIN socket 21 is provided in many 2channel stereo device IJ) and adapter ? 8 This is done using the IN-PIN code as shown in Fig. 2
connecting the PIN jabuk (not shown), but "This code has become a new line with the
conventional DIN-PIN code for reproduction, and a new code is created. In addition to being
bothersome, it is likely to cause confusion on connection such as a connection error between the
main unit 1-1 and the adapters 2-8, and further, the first to fourth channel input terminals When
connecting a tape output to 20.11 and 34.35, the first and second channel input ends 20 ░ jl
and the eighth and fourth channel input ends 34 ░ S5 are one main body 1-1 and the adapter 2
Dispersed in water Have a drawback etc. is very inconvenient to have. ?? This device eliminates
the above-mentioned drawbacks, and the connecting force between the adapter and the existing
3-channel stereo device ~ The conventional IIN-DIN code 1 addict-without any modification to
this 3-channel nel ntereo device For the purpose of providing a convenient connecting device
which can be easily and reliably and in which the first and fourth channel input terminals are
combined into one part, see FIG. 8 below, this device One embodiment will be described in detail.
That is, 4-1 is an existing general two-channel stereo device (hereinafter referred to as a main
body), and first and second channel amplification @ 44, 4s each having three amplification units
41. 43 and a first DIN socket 46 Etc. are provided. This first DIN socket 4-, as shown in the
drawing, has two input / output terminals each bordering the shield terminal 41: ?; :: 2 ? ?: ?
? ::: ninini :: = ? ? ? ? 7: 2 in the example. It is connected to the output end of the
amplification unit ax, 4x). Also, these first and second channel amplification! The input end of
44.45 is the L and 1 input end of the record 13.4. JJ and said 1st DIN Tsuk и и) 4 #, ?, ?, ?!
Switch between 2 ░ to 1?, switch 1.4. Depending on El each selectively toto. = I] & + 1 + ? +-It
is provided to be capable of reconnection. On the other hand, the avatarr si, mad! , Circuit If7. @:
The 8th and the 4th Chiya ::: '::: Two: Two; Two: Two ;;: The socket 60 is identical to the first DIN
socket 46 described above. In this configuration, the first DIN socket through 4j has a first end
5b, a second end 6b, a second end 612, two input / output terminals 62, 63 ░, ? ? .
It has 84.68. The input terminal 62.68 is connected to the channel input terminals ttg, sr of M1
and @ 2, respectively, and the output terminal 64.66 is connected to the input terminal 2 of the
matrix circuit 51 respectively "1". @ и @ E @ 8 & d * 4 CD,: +, 7 (channel amplifier ss, ss input
terminal is ma) with the output end of the kQ lux path 57 and the eighth and fourth channels,
channel input end 6g, lj 9 It is selectively switchable and connectable by switches to and ri
interlocking with each other. And, the first and third DIN sockets as, eta are not shown DIN-. 7-,
7-knife, DIN-plugs, respectively, provided at both ends of the boud of the DIN code, and
corresponding ones of the first and eleventh DIN sockets 4e, tto, respectively. 62 to 65 are
connected. In FIG. 3, 72 indicates a variable resistor, and 23 indicates a speaker. In other words,
the switch 64.55 is closed on the L and B input terminals 62 and 53 side, and the switch 70.71 is
closed on the output terminal side of the matrix circuit 51. When a stereo performance is
performed and switches 84.68 and FO and FJ are closed on the opposite side to the above, a
complete 4 channel stereo performance with 4 channel sources such as tapes is performed, and
each channel signal is a first and a second The DIN socket 411.60 and the DIN-DIN cord provide
a "link" between the body 4-4 and the adapter 5- #. Therefore, according to such a connection
device, a common three-channel stereo is provided. Mostly in device 4-1. 11, and the first D
provided! Since the N socket 4- is used by '-' :, '' and each adapter 56 is provided with a second
DIN socket 16), these interconnections are not changed to the 8-channel stereo device 4-1. The
adapter can be easily and reliably made by the conventional DXN-DXN code by slightly modifying
the adapter 5e; 91p without applying the coating. ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?
? ?The first to fourth channel input terminals #e to G # for receiving these signals are
collectively collected at the adapter 56 side, so the connection with a tape recorder etc. is very
easy and convenient. As described above in detail, according to the present invention, it is
possible to provide a connecting device having a large effect by using the four-channel stereo
device in which an adapter is provided to the two-channel stereo device.
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