SU1413559A1 - Device for visual identification of addresses in soldering the wiring points - Google Patents

Abstract

The invention relates to professional communications and can be used in the manufacture of electrical and cable products of electronic equipment, in particular television. The purpose of the invention is. improving the control speed is achieved by automating the search for unsolder wire in the harness and display the addresses of both ends of the unsolder wire during the desoldering process and after it ends. Set The device contains a reversible counter 1, blocks 2 and 3 of a programmable memory, a decoder-multiplexer 4, connectors 5 and 20, encoders 6, 21 and 25, indicators 7,9,22 and 26, decoder 8, block 10, setting the order for unsoldering, one-shot 11 and 14, element OR 12, button-contactor 15, power supply 16, button-breakers 17 and 18 multi-input element ШИИ 19, block 23 for deciphering the wire number, block 24 of numbered clamps, unsolder harness 27. The device improves speed and efficiency control and can be used when performing electrical installation x Checking circuit panels and stands. 1 hp f-ly, 2 ill. o (C (L

Description

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The invention relates to industrial communication means and can be used in the preparation of electrical and cable products of radio electronic equipment, in particular television.

The purpose of the invention is to increase the monitoring speed by automating the search mode for the unsolder wire in the harness and for indicating the addresses of both CONTS09 of the unsolder wire during the desoldering process and after it ends.

Figure 1 shows a structural electrical circuit of the device; on 4ig.2 - the basic concept of the encoder,

The device dp of visual determination of addresses when unplugging mounting connections (Fig. 1) contains input and Vcodo terminals for connecting a decoupled harness, a reversible counter 1, the outputs of which are connected to the address inputs of the low-order bits of blocks 2 and 3 of the programmable memory, the outputs of the first programmable block 2 the memory is connected to the inputs of the descrambled {) demo-demultiplexer 4, the outputs of which are connected to the corresponding inputs of the first connector 3 and the inputs of the first encoder 6, the outputs of the first encoder 6 are connected to the corresponding by their inputs of the second indicator 7, the outputs of the second programmable memory unit 3 are connected to the corresponding inputs of the decoder 8, the outputs of which are connected to the inputs of the first indicator 9, respectively, the outputs of the first connector 5 are connected to the input terminals for connecting the unsolder harness The units 2 and 3 of the programmable memory are connected to the corresponding outputs of the unit 10, the order of the desoldering order, the subtraction input of the counter 1 is connected to the output of the one-oscillator 11, the summing input is connected to the output of the element nta OR 12. The first input of the element OR 12 is connected to the output of the second one-shot 13, the second input is connected to the output of the third one-shot 14. The reset input of the counter 1 is connected to the output of the power supply unit 16 via the button 15. The start inputs of the one-shot 11 and 13 are connected via breaker buttons 17 and 18, respectively, with the output of the power supply unit 16. Third launch entry one

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the vibrator 14 is connected to the output of the multi. of the input element OR 19. The inputs of the OR element 19 are connected to the corresponding outputs of the connector 20 and the inputs of the second encoder 21, the outputs of which are connected to the inputs of the third indicator 22, respectively, the inputs of the decoupled wire number determining unit 23, which contain series-connected numbered block 24; 25 and the fourth indicator 26 are connected to the output terminals for connecting the unsolderable harness 27.

The coders 6,21,25 are made identical and each of them contains the first group of decoupling diodes 28.1, ..., 28.n (Fig.2), divided into subgroups of ten diodes. The cathodes of disads 28. 1, ..., 28.n are connected to the corresponding inputs of the finisher. Anodes of like diodes of each subgroup 28. 1, ..., 28.11 are interconnected and with output 1 of the first group of outputs of the encoder. Ano; Sol same diodes other subgroups. connected in a similar way and connected respectively in series to the remaining outputs of the first group of outputs (2,3, ..., 9, cathodes of diodes of the first subgroup 28., ..., 28.9 are connected with cathodes of the diodes of the first subgroup of the second diodes 29.1 ,. .., 29.9, respectively, the anodes of the diodes of this subgroup are interconnected and with the first output (output O) of the second group of outputs of the encoder, similar connections are made in the next .nffix subgroups of the second diodes, and the connected anodes of the diodes of each subgroup are connected between - fight and with the corresponding in The output of the second group of outputs (1,2, ..., 9), the cathodes of the tenth diodes of the first subgroups of the first diodes 28.10 are connected to the cathodes of the third group diodes, 30.1, ..., 30.10, respectively, the anodes of the third group diodes 30.1, ... , 30.10 are connected respectively to the outputs of the second group of outputs of the encoder, starting with its second output (1,

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The device works as follows.

I The input terminals for connecting the unsolderable harness (split connector) are connected to the outputs of the first

3 , 14 of the connector 5. The output terminals for connecting the unsolderable harness (the second, non-detachable side) are connected in arbitrary order with the inputs of the block 24 of numbered clips. After the power supply is applied, pressing the button 15 causes the device to be reset.

By pressing the button 18, the single-oscillator 13 is started and its output pulse through the OR element 12 passes to the input of the summation of the counter 1 and the initial code appears at its outputs, corresponding to the first address of the blocks 2 and 3 of the programmable memory. This code goes to the first address inputs of blocks 2 and 3. At the outputs of blocks 2 and 3, in accordance with the memory area selected by the code on the address (second) inputs of the higher bits, the code corresponding to the prerecorded information appears. In this case, the code 2 corresponding to the number of the first wire of the unlocked side of the harness (connector pin number) appears on the outputs of block 2, and the code corresponding to the number of the contact pin on which the second end of the first wire needs to be unplugged on the outputs of the programmable memory block 3. .

Information in blocks 2 and 3 is entered in advance in accordance with the technical documentation for unsoldered installation, taking into account the requirements of the desoldering technology. The decoupling mode can be selected either manually or by external control signals, for example, from a microcomputer.

Thus, the initial code at the outputs of counter 1 corresponds to the specified codes at the outputs of blocks 2 and 3 of programmable memory. The output code from the outputs of block 2 is fed to the inputs of the decoder-demultiplexer 4, where it is transformed into the level O on the input of the connector 5, which corresponds to the cert specified address of the first wire of the unsolder harness stored in block 2. This level O (one of the decoder outputs) demultiplexer 4) is fed simultaneously to one of the inputs of the first encoder 6, where it is transformed into a code displaying the corresponding number on the indicator 7, and to one of the inputs of the block 24 numbered clips and then to one of the inputs of the third bus fraction 25, where it transforms9

c in the code that displays on the indicator 26 the input number of the block 24 numbered zazhinov. On the indicator 7, the number of the contact of the first wiring harness wire is indicated, and on the indicator 27 - the number of the input on the block 24, to which the output of the first wire is connected. In this case, the installer does not need to waste time on searching all the wires, but immediately remove the desired one connected to the input, the number of which is indicated on the indicator 26, for subsequent soldering.

In this case, the indicator 9 indicates the number of the connector contact to which the output of the first wire should be soldered. For this, the code of the address of the second side, entered in the block 3 of the programmable memory, from its outputs goes to the inputs of the decoder 8 and is then displayed as a number on the indicator 9.

The installer, using the number on the block 24 and the addresses indicated on the indicators 9,22,26, removes the specified wire from the input of the block 24 and solders it to that contact

of the connector connected to the connector 20, whose address is highlighted on the indicator 9. After removing the wires from the input of the block 24, the indications on the indicator 26 go out (on the indicator 9 remain), and on the indicator 22 the number of the contact to which it is attached appears. In case of an operator’s error, the number displayed on the indicator 22 does not coincide with

number displayed on the indicator 9, which signals the installer about the error. This is how the soldering is checked during installation.

After soldering the second end of the wire to the connector connected to the second connector 20, the potential level zero from its output goes to the corresponding input of the IPI element

19 and after inverting, triggers the one-shot 14. The falling edge of the output pulse of the one-shot 14, the duration of which can be adjusted by the installer to set the optimum speed, through the OR 12 element enters the totalizer input of the counter and changes its output code by one. In accordance with this, the address codes change.

At the inputs of the blocks 2 and 3 of the programmable memory and, accordingly, the indications of the indicators. 9,22,26. Then the desoldering and monitoring process proceeds cyclically as described and repeats until the desoldering of all wires of the connector connected to the second connector 20 is completed.

After the desoldering has been completed, the ramp mounting can be re-checked, for which the reset button 15 and the start button 18 can again be pressed. There is a sequential automatic polling of the addresses of the ramp-down installation. The operation of the device is similar to that described. In the absence of errors of mounting numbers on the indicators 9 and 22 are the same.

The encoders 6,21,25 work as follows. ..

When potential O appears on any of the encoder's inputs, a corresponding activated current passing circuit is formed through the corresponding indicator inputs connected between the encoder's outputs and the power supply source bus 16, the corresponding first, second, and third diodes associated with the corresponding input the encoder on which the level O is shown. In Fig. 2, the activated circuits for the passage of current through the encoder are dotted (for the case of the occurrence of level O at the input 11 of the encoder). In this case, the current passage circuit is as follows: the positive bus of the 16-power supply unit (Fig. 1), the power input of the indicator 26 (7.22), pack. the equal inputs of the indication cells (de-strings and units, respectively, 1, 1), outputs. 1 of the first group of outputs of the encoder, 1 of the second group of outputs of the encoder, then two parallel circuits: diode 28.11 - input P, diode 29.11 - input 11, then through the block 24 numbered clamps (second connector, tested installation, directly to the output of the decoder) demultiplexer) to the output stage of the decoder / demultiplexer, on which the level O is selected, to the common wire connected to the other bus of the power supply unit 16. At the same time on the indicator 26 (7,22) the corresponding number is highlighted (in the considered example 11). Similarly, encoders work at the level O and at other inputs.

Thus, this device for the visual determination of addresses when unplugging mounting connections improves the speed and efficiency of control when carrying out electrical work on television equipment, such as multiwire cables, wiring diagrams of consoles, racks, etc.

Claims (2)

1. Device for visual determination of addresses when unplugging wiring connections, containing input and output terminals for connecting an unsolderable harness, decoder, first encoder, first and second pulse counter indicators, power supply unit, first locking button, first connector, whose outputs are connected to input terminals to connect the unsolderable harness, the decoder outputs are connected to the corresponding inputs of the first indicator, the outputs of the first encoder are connected to the corresponding inputs of the second indicator, characterized in that, in order to increase the control speed, the first and second programmable memory blocks, a decoder-demultiplexer, a desoldering order setting unit, a decoupled wire number determination unit, a second connector, a second encoder, a two-input element OR, a multiple input the element OR, the third indicator, the first and second buttons-breakers, the first, second and third one-shot; in this case, a reversible counter is used as a pulse counter, the outputs of which are connected to the corresponding address inputs minor bits of the first and second one programmable memory blocks, input reset the counter is connected through the first button-contactor with the output of the power supply, the input of the subtraction is connected to the output of the first one-shot, the input of the summation is connected to the output of the two-input element OR, the first input of which is connected to the output of the second one-shot, and the second input - with the output of the third one-shot, the input of which connected to the output of a multi-way OR element, whose inputs are connected to /one the outputs of the second connector and the corresponding inputs of the second encoder, the outputs of which are connected to the corresponding inputs of the third transmitter, the start inputs of the first and second single-oscillators are connected via the first and second breaker buttons to the output of the power supply unit, the address inputs of the higher bits of the first and second blocks programmable memory are interconnected, respectively, and with the corresponding outputs of the task block of the desoldering order, the outputs of the first programmable memory block are connected to the corresponding inputs With the decoder-demultiplexer signals, the outputs of the second programmable memory unit are connected to the corresponding decoder inputs, and the inputs of the unsolder wire number containing the numbered units connected in series, the third encoder and the fourth indicator are connected to the corresponding output terminals for connecting the solder wire, the output decoder the demultiplexer is connected to the corresponding inputs of the first coeWtHHTel and the inputs of the first encoder, the power inputs of the indicators with Uniform one power unit bus, other bus which is connected to the common bus. + 598 2. The device according to claim 1, about tl and -, so that, for the purpose of simplification, each of the first, second and third encoders contain the first dissociating diodes, the cathodes of which are connected to the inputs of the encoder, the second and third converting diodes moreover, the first dissolving diodes divided into subgroups of ten bottom each, the anodes of the same name of the first dissolving diodes of all subgroups are connected to each other and with the corresponding first ten outputs of the encoder, the second decoupling diodes are divided into nine groups of nine diodes of each second cathode. diodes of each subgroup of the second,. diodes are connected respectively with cathodes of the first dissociating diodes of the corresponding subgroups from the first to the ninth, the anodes of the second dissociating diodes of each subgroup are interconnected and respectively, with the second outputs of the encoder from the first to the tenth, third uncoupling diodes with cathodes are connected to the cathodes of the tenth diodes from the respective subgroups of the first switching diodes, and the anodes to the outputs of the encoder of the second gram of diodes, starting with its second output. 9 II -J ten . .12 P g I h a n