JPS5986340A - Adjusting console of simple construction - Google Patents

Abstract

PURPOSE:To attain the simplicity of construction, improvement of operability and to urge the standardization by arranging separately an input amplifier section from the operating panel and controlling a signal circuit. CONSTITUTION:An operating section 4 is provided with an operation panel 16 on which operating switches for recorders and the like and with a switching panel 17 of speaker and a test oscillator. Further, the operating section 5 is divided into fiber so as to be opposed to the operating section 4, on which a switching panel 10, player head amplifier module 19, each input module 20, limiter compressor module 18, name plate panel 18a, and an echo/solo module 21. Further, a printed circuit board 123 of the circuit section such as group amplifiers and input amplifiers used frequently is accommodated in a shelf of a lower console and controlled by panels 9a, 15 of the operation section 4.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an adjustment console, and more particularly to an adjustment console structure that can be used particularly effectively as an audio adjustment console in radio or television broadcasting.

In the studio of a broadcasting station, microphones are used for announcers, performers, onomatopoeia, accompanists, orchestra, etc. A plurality of these microphones are used not only for convenience of sound collection, but also for stereo sound collection. Additionally, a large number of microphones are used to effectively collect sounds from the announcer, host, narrator, performers, and orchestra. All of these microphone outputs are input to an audio adjustment console (hereinafter referred to as "volume"). The outputs of records and tape recorders are also added to the volume, and the number of these inputs varies depending on the scale of the volume, but it ranges from about 72 channels for small-scale systems to 32 channels or more for large-scale systems. In addition to this, volume inputs include a remote channel for connecting input from a remote location, a telephone channel for connecting whispers from a viewer, etc., and an echo channel for connecting input with an echo effect.

Internally, these many inputs are sent to an input circuit consisting of a head amplifier and an input amplifier, amplified by a trench to the required level, and corrected for frequency characteristics by an equalizer, and adjusted as necessary. The process of mixing the selected channels is hereinafter referred to as "mixing". ) are supplied to several group amplifiers, and the outputs of each group amplifier are appropriately combined and supplied to one or several master amplifiers. Each of the above input group amplifiers and master amplifiers is provided with a volume adjuster, so that the output level can be freely adjusted individually, for each group, or for the whole.

The master amplifier outputs the signal to the line that connects to the broadcasting machine, as well as to the tape recorder, monitor headphone, studio speaker, announcer speaker, auditory speaker, and measurement circuit.

Furthermore, the echo signal that gives the echo effect can be obtained by, for example, branching the signal from before or after the volume adjuster of the group amplifier, amplifying it to a predetermined level using an echo amplifier, and providing the output signal separately from the volume. It is created by applying an appropriate time delay to an echo machine or echo room, adding the signal to the loud echo input circuit, and mixing it back into the original circuit. In addition to this, the volume control may include a solo amplifier that amplifies and outputs the branched signal in the same way as the echo signal, and can freely output the output as necessary.

An example of such a volume has an appearance as shown in FIG. The illustrated volume is controlled by an upper table 2 for operation and monitoring placed on a lower table 1 on which units, power supplies, etc. that do not require operation are mounted. And the upper table 8 is
Place the elbow rest 8 in front, then the first operating part 4 which is horizontal or gently sloped, the second operating part 5 which has an increased angle of inclination behind it, and the meter board 6 which is inclined almost vertically at the top. It is configured. Note that some conventional volume control devices have a structure in which the second operation section 5 and the meter panel 6 are integrated.

Frequently used modules are arranged in the first operating section, and less frequently used modules are arranged in the first operating section.

The operator performs the operation while sitting on a chair and putting his/her legs under the first operating section.

Looking at the arrangement of the operation surfaces of the seventh and second operation sections, an input module 7.8 is arranged in the first operation section 4. This input module 7.8 is a combination of a head amplifier and an input amplifier, and in the illustrated example, each G channel is provided. In addition to low-level microphone input, the input module can optionally accept high-level tape recorder, record, and remote inputs. The group module 9 for the q channel is located at 6D in the first operating section 4, and the master module 10 for the λ channel is located at the second operating section 5. Furthermore, a module 11 is equipped with various speakers, monitors, excavated frequencies for testing, tape recorder selector switches, and volume adjusters.
There is an optional space 1 to accommodate various effect equipment.
There are 2. A VU meter 11 is arranged on the meter panel 6 to indicate the output level of each circuit.

As described above, the volume is modularized for each channel. For example, the module has a plug-in structure in which the operating part of the channel is mounted on a long and narrow channel, while the circuit components such as amplifiers are arranged on seven printed boards and mounted almost at right angles to the panel. I was trying to insert them side by side on the volume control surface. This monophonic signal is created for each input circuit, group amplifier, master amplifier, echo amplifier, solo amplifier, etc., so for example, as in the example above, the microphone channel for the performer is
In the case of single-channel sound, the number of modules is around 22. These modules have different electrical configurations but the same mechanical structure. Next, we will explain the input module, which is the most common, the most numerous, and has an electrically complex structure.

The input module has a built-in headamp input amplifier. The head amp is for normal microphone input, and the input voltage is 1-1/-dbs.
(Level 1 shift with / mW as Q db.

In the case of Otsu 00Ω line, the voltage of Q db is 0.77
It becomes V. ), this is amplified by 1 to a predetermined level.

Also, a filter to remove low frequency interference components such as hum,
It has an equalizer to correct the frequency versus amplitude, and a condenser to correct the linearity of the input level to the output level. On the other hand, in addition to the input from the head amplifier, the -20 db input from a tape recorder or record is directly applied to the input amplifier from the line and amplified. In addition, the input amplifier has a phase inverter, a microphone input or line input selector switch from the head amplifier, and a stereo switch that switches between only the left (L) output of the stereo, only the right (R) output, or the left and right outputs. An output selector switch, a d'on pot that localizes stereo sound to the left and right, a volume adjuster that adjusts the output level, and a circuit that branches from before or after the volume adjuster to an echo amplifier or solo amplifier.Select the front or rear of the volume adjuster. A selector switch for selecting an echo circuit or a solo circuit, an auditory branch circuit, and a selector switch for each output circuit are mounted. The output circuit is each group amplifier, each master amplifier,
It is provided for each echo amplifier 0 and each solo amplifier.

As previously explained, the various selector switches and various regulators of the circuit described above are designed to have an elongated A channel (e.g. width approximately 'IO+n).
m, length 300 m to 500 mm), and the other parts are mounted on a printed circuit board mounted at right angles to the channel plane. A plug is attached to the printed circuit board, which is inserted into a socket installed inside the console's control panel. The structure of a volume device that receives such a module is as shown in FIG. 2, which is a cross-sectional view of the first operation section of the volume device shown in FIG. It is deep because it needs to be greater than the sum of the height of the non-contact wiring board, the height of the connector, and the wiring sweep. In the illustrated example, the height of the printed circuit board of the module is 110 mm.
mm, whereas the difference between the height of the front edge of the first operating section and the height of the first operating section at the position of the lower console is 100 questions. Unfortunately, the input module has a large number of terminals, and the flags are also divided into three. and,
Wiring between modules and other circuits can be done by attaching the socket 14a and fixing the plate member 14b to the volume frame, then opening the bottom plate 14C of the console and wiring from the bottom, or by attaching a hinge to the plate member to which the socket is attached. There is a method of opening and closing this board member from the top of the desk with the module removed.

This structure has the advantage that each circuit is well organized, so the wiring within the module can be shortened, and adjustments and inspections can be performed independently and efficiently using dedicated adjustment equipment and testing equipment. On the other hand, the following problems arise.

The first is the need for guide rails that precisely define the position of the module and table combination;
However, due to the large size of the desk, the large size of the modules, and the large number of mounted modules, when assembled, there may be misalignment between adjacent modules in the vertical direction of the iE panel surface, that is, in the vertical direction, or in the spacing between module panels. Unevenness almost always occurs, and it is difficult to adjust the gaps so that they are even. Dimensions, depth from the assembly position of the flannel surface to the socket,
The position of the module and the hole for installing the module, and the assembly position of the plug and socket must match precisely. For this purpose, each member related to the installation of the module and monoyl is strengthened to ensure a solid structure with no deviation in dimensions. It is necessary to take precautions such as removing the guide rails, and using special cages when assembling the module and desk. Even with this method, it is difficult to get the pieces to fit together just by assembling them, so a lot of effort is actually put into fitting them together.

The first problem is that it has poor adaptability to design changes. Users often require unique usability for the volume, so it is often necessary to change the layout on the operation surface, such as the position of the module and the method of display.
Regardless of such cosmetic changes, this change requires a design change to the entire module, and corresponding changes to the socket, etc. For this reason, effective standardization was hindered and productivity was at a stumbling block.

The third reason is that it is difficult to make the force external dimensions so as to reduce operator fatigue. The height of the operation surface is ergonomically determined for Japanese people to be approximately 70 on, but in a structure where the module is a plug-in type, the thickness of the operation surface portion is determined by the height of the module and the socket as described above. Because of the height and the thickness of the wiring, it becomes difficult to put your legs under the control surface in a free position. As a result, operator fatigue tends to accumulate during long hours of operation.

Therefore, the present invention aims to provide an adjustment console that fundamentally solves the problems described above.

That is, the first object of the present invention is to provide an adjustment table that does not require the complicated and strong structure that was unavoidable when using conventional monoyl plug-in systems, and is free from the difficulties of assembling. That's true.

A first object of the present invention is to change the configuration of the module,
By providing an adjustment table that can minimize design changes due to changes in specifications by the customer.

A third object of the present invention is to reduce the thickness of the operation surface portion,
To provide an adjustment console with a structure that reduces operator fatigue by allowing the legs to be easily placed under an operation surface.

A third object of the present invention is to provide an adjustment console that facilitates standardization by separating parts that require design changes and parts that do not require design changes due to specification changes by the orderer.

A fifth object of the present invention is to provide an adjustment console whose electrical performance is stabilized and whose configuration is simplified by using the changeover switch and volume adjuster attached to the operation surface for direct current control.

Still another object of the present invention is to provide an adjustment console that has increased maintainability and facilitates inspection and repair.

゛ That is, according to the present invention, in an adjustment console for adjusting signals of a plurality of channels, in which the operation means are arranged for each channel on the operation surface, at least one channel of the operation means on the operation surface is arranged. The circuit through which the signal current flows, which is attached to the corresponding part, is placed separately from the operation surface, and the operation means for some of these parts are also attached to a panel attached to the operation surface, thereby creating a DC control system. The separately arranged circuit through which the signal current flows is controlled.

In a preferred embodiment of the present invention, the operation surface is divided into a part where design changes are frequently made due to specification changes and a part where there are few design changes, and the signal current attached to the operation means corresponding to the part where design changes are often made is divided into parts. The circuits through which the signal current flows are arranged separately from the operating surface, and some of the operating means are also attached to a panel attached to the operating surface, and the separated signal current flows using a DC control method. Let the circuit be controlled. Taking an audio adjustment console as a specific example, the input amplifier section of the head amplifier section and input amplifier section that make up the input section of the audio adjustment console is separated from the operation surface and placed on the lower console. The operating means of the input amplifier section is attached to the front panel attached to the front of the operating surface, and the separately arranged circuit through which the signal current flows is controlled by a DC control method. In this case, the head amplifier section may have a modular structure and be placed in a portion of the operating surface that requires few changes in design.

By adopting this structure, all you need to do is attach connectors, etc. necessary for connecting parts necessary for operation and display to circuit parts such as amplifiers on the front panel of the operation surface. Can you make the thickness of the front part thinner? In addition, the structure has become simpler, so it is possible to have sufficient strength and function with less cost and parts, and the operator can now take a more comfortable position. Furthermore, it is much easier to assemble the i9 panel surface at the front of the operating unit compared to the modular structure. And finally, by dividing the input module into a head amplifier section and an input amplifier section, and dividing the latter into a control section and an amplification section, it becomes easier to respond to design changes, promote standardization, and increase productivity. be able to. The reason for this is that since the orderer's specifications are mainly in the nameplates and arrangement of components on the panel surfaces of the input amplifier and group amplifier, everything other than the control section can be standardized. The circuits placed at the rear of the operation section such as the head amplifier section and mask amplifier can be left in the module format, but even in this case, the length of the module is shortened and the circuit can be divided into several blocks, so it is possible to Compared to mounting a large module on the front of the control unit, there are almost no assembly problems. I divided the input amplifier into a control section and a circuit section, but
Since the control unit performs direct current control, there is no deterioration in electrical performance such as hum or noise, increased crosstalk, or local oscillation.

An embodiment in which the present invention is implemented in an audio adjustment console will be described below with reference to FIG. 3 and subsequent figures of the accompanying drawings. FIG. 3 is a vertical sectional view of the upper part of the audio adjustment console according to the present invention, FIG. 7 is a front view, FIG. S is a side view, and FIG. - FIG. 7 is a schematic diagram of the entire surface of the operation panel.

As shown in the panel diagram of FIG. 7, in the first operating section 4 at the front, operating sections for circuits that are frequently operated are arranged, and in the center is the operating channel 9a for the q channel group amplifier. The operation panel 15 of the g-channel input amplifier is arranged on the left and right sides, respectively. Furthermore, the first
At the left end of the operation unit 4 is placed an operation panel 16 equipped with switches for starting and stopping the tape recorder and records, and at the right end is a switch panel 17 for a test generator, studio speaker, and announcer speaker. are doing. The rear U operation section 5 is divided into S parts so as to face the first operation section 4, with a mask amplifier and main monitor switching panel 1o for medium heat, and a G channel player's head amplifier on the left. module] 9, total G channel announcer microphone, tape recorder, record, remote telephone, echo input monoule 20 on the right,
A limiter combiner module 18 and a nameplate panel 18a to be inserted if necessary are placed in the left I pane, and an echo and solo circuit monoyl 21 and panel are placed in the left ☆:1 pane. Furthermore, the printed circuit board 1 of circuits that are frequently operated, such as amplifiers of group amplifiers and input amplifiers, etc.
23 is housed on the shelf board of the lower table as shown in FIGS. 9 and S, and is controlled from operation panels 9a and 15 of the first operation section.

Figures S and 9 show typical circuit examples of a head amplifier and an input amplifier. Head amp microphone input 22
Usually, a low level signal of about 1 ldbs is input. However, when using a condenser microphone,
Switch 24 (S], ) can be closed to supply y-gv to the microphone.

The microphone input is sent to an amplifier 27 via a transformer TI and amplified. This amplification degree is adjusted by a volume regulator 28 (RVI). At this time, if the light output is high, switch switch 2.6 (S2) downward to increase the output by 20db.
A pad (fixed attenuator) 25 is inserted 17 to attenuate the signal. Next, harmful low frequency components are removed by the high-frequency p-wave generator 29 as necessary. The cutoff frequency of this high-frequency p-wave generator 29 is set to 20 H by the regulator 30 (RV2).
z to 2'l OHz. When it is not necessary to use this F-wave filter 29, the switch 81 (S8) is turned upward to disconnect the filter 29 from the circuit. Next, the frequency versus amplitude characteristics are adjusted by j number of other errors 82 to 35. The above method divides the audio frequency band (20Hz'-20KHz) and performs an equalization effect within each band. (R
V5) and 39 (RV6). When it is not necessary to perform equalization, switch 40
(S4) is switched upward to disconnect the other charges from the circuit.

In this way, the equalization-corrected audio signal is subjected to excessive output suppression by the limiter and noise suppression during silent periods. Various types of circuits have been proposed for use in this purpose, but the illustrated embodiment uses a voltage controlled variable gain amplifier (VCA) that controls the degree of amplification using a control voltage.
mplifier ) 4 l is used, this output voltage is input to the limiter 44, and the output voltage of the limiter is fed back to the vcA 41 as a control voltage. The regulator 45 (RV7) sets the threshold level at which amplitude limiting starts, and the regulator 46 (RV8) sets the amplitude limiting level when the level of the signal whose amplitude has been limited returns to below the threshold level. Release time (Re1
eass Time). Although not provided in the illustrated embodiment, when the level below the threshold suddenly rises, the application time (Attack Time) of the amplitude limiting effect is delayed, and an adjustment is made to set the attack time. A container may also be provided. The peak level of the microphone output is detected by a peak level detection circuit 4.8, and when the peak level exceeds a certain set level, the peak level detection circuit 48 energizes a light emitting diode 49 (DI) to emit light. ing. The limit amount of the limiter is detected by the limit amount detection circuit 50, and is divided into q stages.
Q light emitting diodes 51 (D2 to o
5) to emit light. When there is no need to use the limiter, the limiter can be disconnected by opening switch 4+7 (S6). In order to suppress the unpleasant noise output when there is no input signal and no sound, a noise detection circuit 42 is provided at the input section of the VCA 41, and the noise detection circuit 42 detects the noise output and mixes it with the limiter output. It is added to the control terminal of VCA41.

When this noise suppression is not necessary, switch 48 (S5
) to separate the noise detection circuit.

Therefore, on the channel surface 19 of each head amplifier, 51-
6 switches of 56, g regulators of Rv1 to R8, and S light emitting diodes of DI-D5 are installed, and other parts are mounted on a printed circuit board mounted perpendicular to the panel surface. It is incorporated to form a module. The output level is -20 db, and the terminal 52 is connected to the next stage input amplifier.

As shown in FIG. 9, the input amplifier has a terminal 55 for receiving the output of the head amplifier, and a terminal for a tape recorder, record, remote, telephone, etc.
It has an input terminal 53 and an R terminal 54 as db line inputs. These inputs 58, 54, 55 are further connected to a phase inversion switch 56 via input transformers T2, T3, and ■4.
After matching the phase by (S7), the amplifier 57.581
, 59 and amplified. This phase reversal switch 5
6 is for aligning the L and R phases of the stereo signal.If you observe the waveform of the oscillograph or listen to the stereo sound and notice that the phases are reversed, press this switch or Either one of R (in Figure 5, R
) is inverted [- to match the phase.

The signal amplified by the amplifiers 57, 58, 59 to -/Q db is selected between line input and microphone input by switch 60 (S8).

The switch 61 (59) is a changeover switch for selecting only L, only R, or both L and R of the stereo signal. The amplitude of the selected signal is adjusted by the fader 62, which adjusts the volume of the output signal. The volume adjuster of this fader is the most frequently used component, and conventionally a large adjuster with a linear slider is usually used. The output of the fader is connected to the zone pot 63. No 4 pot is 1. It moves the direction of arrival of stereo sound from side to side.When set in the center, a small amount of attenuation equal to that of 5R is given, but when rotated to the L side, the amount of attenuation for L decreases. The attenuation amount of R increases, and as a result, the volume on the rear side becomes sharper, giving the impression that the sound source has moved to the left. However, in the illustrated embodiment, the input amplifier's fader 6
The aforementioned VCA is used as the valve 2 and the nozzle pot 63, and the voltage of its control input is DC controlled by a linear sliding regulator or a rotary regulator attached to the operation panel 1.5.

After branching from before and after the fader 62 and mixing L and R, they are amplified by amplifiers 64 and 65 respectively, and connected in parallel to switches 66 and 69. circuit 7o
is connected to. The echo and solo circuits are equipped with a volume adjuster (38 (Ry (+)) or 71 (RVIO),
It is possible to control the output level. However, the volume adjuster 68.71 part is
A, and its control input voltage is remotely controlled. Furthermore,
There is a line branched from before the fader 62 for use in an audio circuit for previewing input signals.

In the output circuit, the L and R panpots 68 each branch into four circuits, and output G l- for the group amplifier.
G4. Switches 72 to 77 (510 to 515) are provided to connect the master amplifier outputs M1 and M2, and furthermore, the echo circuits E11, E2, and sl are branched from the outputs of the echo circuit 67 and the solo circuit 70, respectively.
, switch 78.79 (sl6.5
17) and 80.8 ], (S l 8.519)
and a switch 82.8B (S20, 521) for selecting either L or H in the audition circuit.
There is a total of 7g circuits. The switches s7 to 521 including the switches s7 to s9 described above are, for example, FET switches described later, and are further unitized for each channel as an amplifier section 128 as shown in FIGS. Place it on the shelf of lower table 1.

Each of the λ operation panels 15 of the input amplifier includes
The same 4-inch switch as before that remotely controls the FET switches 57 to 521, the fader 62 and the motherboard 6B,
Same as before, except that variable resistors similar to the conventional ones used as the volume adjusters 68 and 71 of the echo circuit 67 and the solo circuit 70 to adjust the control input voltage of the VCA are installed together for the g channel. Take it as shown in Figure 6.
These switches and variable resistors are connected to the FET switch and VCA using electric wires such as flat cables through which only direct current flows. Figure 1θ shows VCA (“FE
This shows the circuit for remotely controlling the T-switch with direct current. The control section on the operation panel side consists of a switch and a volume adjuster, which is a variable resistor.
Since the only difference is the combination of contacts of the switch and the type of volume adjuster, the same or similar circuit configuration as in FIG. 10 can be used for each circuit. In FIG. 10, the volume adjuster 102 attached to the control channel has terminals at both ends connected to +15V and ground, and the center terminal connects to the DC amplifier 104 to control v CA l () 5. By moving the slider of the volume adjuster 102, the input voltage of the DC amplifier 1.04 changes from θ to 5.
by changing the amplification degree of vcAi05,
The output level of the vcA 105 can be adjusted.

Twitch 108N attached to the operation panel: This is an example of switching the λ line type line, and this corresponds to the microphone and line switch 60 (S8). The switch common terminal is connected to ground in the amplifier section, and the other terminal is connected to two-stage DC amplifiers 106 and 107, whose respective outputs are added to FET switch 1080 control terminals 109 and I'll. ing. When the switch 108 is open, the output of the DC amplifier 106 is positive, and the output of the DC amplifier 07 is negative.
When the switch is closed, the polarity is reversed. The FET switch conducts, or is closed, when the control voltage is positive;
When it is negative, it becomes non-conducting, that is, it becomes open, so switch 1
When 03 is open, between terminals 112 and 118 and 11
Between 0 and 114 is closed, terminal 110 (!: l ],
5 and between 112 and 116 are open. Therefore, the line 117.118! Each line is line 1
Connected to 19.120. On the other hand, when the switch 103 is closed, the control voltage of the FET switch is reversed, so that the terminals 112 and 113 and 110 and 114 are opened, and the terminals 110 and 115 and 112 and 116 are opened.
It will be closed between.

Therefore, the two lines 117 and L 1' 8 are line 1
21 and 122.

Similarly, the group amplifier section also includes an amplification section and a control filter section (
The amplifier section is placed on the shelf of the lower table, and the operating means of the control section for the t channels are mounted on the panel 9a.

As a result of the above configuration, as can be seen from FIGS. Since the light emitting diode etc. have become taller, the thickness of the first operation part 4 can be made around 20wn, making it thinner than the conventional structure mentioned above, and allowing the operator to take a comfortable posture. I can do that. The detailed structure of the first and second operation parts can be seen from FIG. Bottom surface 12 of first operation part I
The box consisting of the box 4 and the side (f not shown) is a welded shallow box, has a simple structure with only a ventilation hole in a part of the bottom, and does not need to house electronic parts. Compared to the conventional structure shown in Figure 1, in which a module socket is attached to the bottom and wiring is done, this can be opened and closed from the top using a hinge, or the bottom plate can be opened and closed.
As you can see, the structure is significantly simpler and the number of sheet metal parts is reduced. The structure of the i4 channel and how parts are attached can be seen particularly from FIGS. 4 and 7.

Push button switches lining up on the left and right 5OLOI, ECHOI
, G1, G2, Ml, AUDl and φ, 5OL0
2, [1fflHO2, G2, G4, M2, AUD21
1-i, each of which is wired by a small printed circuit board 125. Connector socket 126 is connected to panel 1
5 is attached to a mounting bracket 127. To assemble the control section, insert the plug into the connector socket, bend the cable, and secure the panel 15 to the frame mounting bracket 128 with machine screws. As explained earlier, the box for the operating section is a shallow box with a simple welded structure, so it can be made sufficiently strong with a small amount of material and is not easily distorted. Therefore, by precisely machining the hole positions of the flanges 9a, 15, 16, 17 and the mounting bracket 128,
15 Perfect fit can be achieved without making any adjustments. In comparison, in the case of a conventional input module, which has a length of 300 rtan or more, the dimensions of the monoyl, the position of the lower right and left sides of the double socket, the dimensions and distortion of the module mounting bracket and other related parts are affected. However, it becomes difficult for the dust to fit together, which increases the adjustment effort.Furthermore, if the above-mentioned dimensional errors and distortions of each part are M-1 in the same direction, adjustment may not be possible, and the quality of the product may be affected. This results in reputational damage to the person.

The modules placed in the λ-th operation section 5 are: a head amplifier module, for example, length, 2g Omm%, an echo, solo and limiter combreather monoule, e.g. /'l Ow++, compared to the input module. It is half or three minutes. In addition, the head amplifier module is, for example, vertical, 2 0 doors, jd 4320 nm, height 2
It has a sturdy structure with a connector socket attached to a small 10mm frame, so it is easy to match the dimensions and is less likely to go awry. Because of this, it has a modular structure, but it is relatively easy to assemble. Since the number of echo, solo and limiter-compressor modules B is small and their lengths are short, assembly is further facilitated.

As mentioned above, the input module is divided into a head amplifier and an input amplifier, and is further divided into a control section that performs only DC control and an amplifier section that handles audio signals. can be easily separated, making inspection easier.Furthermore, when repairing a fault, it is only necessary to replace only the faulty part with a spare part, so it is easy to use when replacing a large input module with a spare part. In comparison, there were fewer spare parts available, and the burden of maintenance could be reduced.

As explained above, according to the present invention, it is possible to simplify the structure of the first operation part in the front part of the front vehicle, make it a sufficiently strong and solid structure with a small monthly interest rate, and improve the modular structure. By discontinuing this process, it became possible to assemble each circuit panel surface with almost no adjustment, which significantly reduced the labor required for assembly. Furthermore, by making the thickness of the first operation part thinner, the operator can work in a more comfortable position, reducing fatigue.
-It was more effective. Also, depending on the orderer's specifications, crotch, H
``The part that performs the "&history" has a large number of first operation parts in front of the table, such as the Innoput amplifier part, and has been separated from other parts, and the module structure has been converted to a panel structure, so Proposition I Changes can now be easily made and, therefore, the customer's requests can be easily met. Also, as a result, the input amplifier and amplification section can be standardized, making it possible to increase productivity through multi-manufacturing. In addition, since the amplifying section can be entirely integrated into an IC through direct current control, it is electrically stable and good test results can be obtained. In addition, the large input module is divided into a head amplifier section and an input amplifier section, and the input amplifier section is further divided into a control section and an operation section, making it easy to separate inspections and troubleshooting by focusing on the part where the fault has occurred. Since it was only necessary to replace only the spare parts with spare parts, troubleshooting became easier and faster, and the total amount of spare parts needed was reduced, which significantly reduced the maintenance burden.

The present invention has been explained above using the front vehicle as an example. However, the present invention is an adjustment panel that adjusts the signals of multiple channels. It will be obvious to those skilled in the art that the present invention can be applied to, for example, a video console, etc.

[Brief explanation of drawings]

FIG. 1 is a cutaway diagram showing the configuration of each part of a standard adjustment console, FIG. 2 is a cross-sectional structural diagram of the operation section of the audio adjustment console shown in FIG. 1, and FIG. 7 is a front view, FIG. S is a side view, FIG. 6 is a side view of the operation panel of the Innoput amplifier section, and FIG. Figure 7 is a schematic diagram of the entire surface of the operation panel, Figure S is a system diagram of the head amplifier, Figure 9 is a system diagram of the ink zero amplifier, and,
FIG. 10 shows a circuit for controlling all the amplifiers in the input amplifier with direct current. ■...Lower car, 2...Upper table, 3...Elbow rest, 4
．． ...1st operation section, 5..2nd operation section, 6..meter box, 7.8..input monoyl, 9..
Crew 7' amplifier monoyl, 10...master amplifier module, 11/various circuit monoyl, 13 vU
Total, 14a...Socket, ■4b...Mounting plate member, 14C...Bottom plate, 9a...Group amplifier panel, 15...Input amplifier panel, 16.17...
Cut! Board, 18...Limitsuta Konzo Leather Module,
19...Head amplifier module, 20...Input circuit module, 21...Echo, solo amplifier module.

Claims (1)

[Claims] 11) An adjustment console for adjusting signals of a plurality of channels, in which operating means are arranged for each channel on an operating surface, and at least a plurality of channels of the operating means on the operating surface are arranged. The circuits through which the signal current flows, which belong to the corresponding parts, are arranged separately from the operation surface, and the operation means of some of them are attached together to a panel attached to the operation surface, and the control means for those parts are mounted together on a panel attached to the operation surface, and the DC control A simple structure adjustment console that controls the circuit in which the signal current flows, which is arranged separately, according to a method. (21 The operation surface is divided into parts with many design changes due to specification changes and parts with few design changes, and some of the operation means are
A simple structure adjustment console according to claim 11, which corresponds to the part that undergoes many changes in fees. (3) The adjustment console is an audio adjustment console, and the input amplifier section of the head amplifier section and input amplifier section that constitute the input section of the audio adjustment console is separated from the operation surface and placed on the lower console, and . . The simple structure adjustment console according to claim 1 or claim 2, which is controlled by a direct current control method by operating means attached to the control panel.