CN211348460U - Maintenance tool for television - Google Patents
Maintenance tool for television Download PDFInfo
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- CN211348460U CN211348460U CN201921925641.2U CN201921925641U CN211348460U CN 211348460 U CN211348460 U CN 211348460U CN 201921925641 U CN201921925641 U CN 201921925641U CN 211348460 U CN211348460 U CN 211348460U
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Abstract
The utility model provides a maintenance tool for a television, which comprises a shell, a display component positioned on the shell and a detection circuit positioned in the shell; the detection circuit comprises a voltage detection module and a signal input module which are connected in parallel, the voltage detection module and the signal input module are electrically connected with the display assembly, and the display assembly displays a detection structure of the voltage detection module or the signal input module. The problem that the existing equipment cannot simultaneously detect multiple circuits is solved; the utility model discloses a repair tools for TV is connected the TV set with the detection circuitry electricity, through voltage detection module detection circuitry voltage, shows the magnitude of voltage that the subassembly demonstration detection circuitry detected, through comparing magnitude of voltage and normal value, synthesizes the comparison with the magnitude of voltage between each way circuit simultaneously, and then judges unusual circuit position, and is high-efficient, has improved the efficiency of TV set maintenance.
Description
Technical Field
The utility model belongs to the technical field of TV set maintenance of equipment, concretely relates to repair tools for TV.
Background
The television is a device that transmits moving image pictures and audio signals by using electronic technology according to the persistence of vision characteristics and visual psychology of human eyes, that is, a television receiver. Are also important broadcast and video communication tools. The basic system of the television consists of three parts, namely shooting, transmission and display.
The TV set needs to be maintained when having a fault, the universal meter can be used for detecting circuits in the TV set in the maintenance process, and in the circuit detection process of the TV set, particularly the liquid crystal TV set, the circuits are provided with a plurality of circuits, only one of the circuits can be detected when the universal meter is used for detecting, the circuits are always out of consideration when being detected, the change of each voltage can not be detected simultaneously, and the difficulty of judging the fault position is increased.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a repair tools for TV has solved existing equipment and can not carry out the problem that multichannel circuit detected simultaneously.
The utility model discloses the technical scheme who adopts does:
a maintenance tool for a television comprises a shell, a display assembly positioned on the shell and a detection circuit positioned in the shell;
the detection circuit comprises a voltage detection module and a signal input module which are connected in parallel, the voltage detection module and the signal input module are electrically connected with the display assembly, and the display assembly displays a detection structure of the voltage detection module or the signal input module.
Preferably, the voltage detection module comprises a power panel detection circuit and a constant current panel detection circuit;
the power panel detection circuit comprises a connector P1 and a connector P2 which are connected in series, and a connector P2 is connected with the display component in series;
the constant current board detection circuit comprises an isolation module, and a connector P3 and a connector P4 which are connected in parallel, wherein the connector P3 and the connector P4 are connected in series with the connector P2 through the isolation module.
Preferably, the signal input module comprises a voltage signal input module and an analog signal input module which are connected in parallel with each other.
Preferably, the voltage signal input module comprises a voltage input module and a plurality of voltage reduction modules connected with the voltage input module in parallel, and the voltage reduction modules and the voltage input module are respectively connected with the connector P1 in series;
the voltage input module comprises a dummy load switch, a 24V direct current input module and an adjustable voltage input module which are connected in parallel;
the 24V direct current input module is electrically connected with the voltage reduction module through the dummy load switch, and the dummy load switch is used for controlling the power supply of the voltage reduction module;
the adjustable voltage input module comprises an ADJ voltage regulating module for regulating voltage.
Preferably, the adjusting range of the ADJ voltage adjusting module is 1.3-24V.
Preferably, the voltage reduction module comprises a 3.3V voltage reduction module, a 5V voltage reduction module and a 12V voltage reduction module which are respectively connected with the connector P1 in series, and the number of the 5V voltage reduction modules is two, wherein one 5V voltage reduction module supplies power to the display component.
Preferably, the 3.3V buck module is in series with relay K1 and the 5V buck module is in series with relay K2.
Preferably, the analog signal input module includes a switch S1, a switch S2, and a switch S3 provided on the housing;
the switch S1 is sequentially connected with the connector P2 and the connector P1 in series and is used for controlling the television to be turned on again;
the switch S2 is connected with the connector P2 and the connector P1 in series in sequence and is used for controlling a television backlight switch;
the switch S3 is connected in series with the connector P2 and the connector P1 in turn and is used for controlling the brightness control of the television.
Preferably, the switch S1 is connected in series with the relay K3, and the switch S2 is connected in series with the relay K4.
Preferably, the display assembly comprises a plurality of voltage meters and voltage switches;
the voltmeter comprises voltmeter V1, voltmeter V2, voltmeter V3 and voltmeter V4 which are used for displaying the voltage of the power panel;
the voltmeter further comprises a voltmeter V5 and a voltmeter V6 which are used for displaying the voltage of the constant current plate, the voltmeter V5 and the voltmeter V6 are both electrically connected with the voltage switch, and the voltage switch is used for switching the voltage values of the constant current plate displayed by the voltmeter V5 and the voltmeter V6.
The utility model has the advantages that:
a TV service tool electrically connects a TV with a detection circuit, detects circuit voltage through a voltage detection module, displays the voltage value detected by the detection circuit through a display assembly, compares the voltage value with a normal value, and comprehensively compares the voltage values among all circuits, so as to judge the position of an abnormal circuit, so that the service tool is quick and efficient, and improves the TV service efficiency; the signal input module realizes the functions of reverse input voltage and simulating partial work of the television, the two functions are combined with the voltage detection function of the detection circuit, the television is detected from a plurality of angles, the accuracy of fault position judgment is improved, the overhauling range and the application range of the maintenance tool for the television are increased, and the success rate of television maintenance is improved.
Drawings
To more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate certain embodiments of the present disclosure and therefore should not be considered as limiting the scope, and that for those skilled in the art, other related drawings may be obtained from these drawings without inventive effort.
FIG. 1 is a circuit schematic of a detection circuit;
fig. 2 is a schematic structural view of a display module.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments.
The first embodiment is as follows:
as shown in fig. 1 to 2, a maintenance tool for a television of the present embodiment includes a housing, a display module located on the housing, and a detection circuit located in the housing;
the detection circuit comprises a voltage detection module and a signal input module which are connected in parallel, the voltage detection module and the signal input module are electrically connected with the display assembly, and the display assembly displays a detection structure of the voltage detection module or the signal input module.
The television is a device that transmits moving image pictures and audio signals by using electronic technology according to the persistence of vision characteristics and visual psychology of human eyes, that is, a television receiver. Are also important broadcast and video communication tools. The basic system of the television consists of three parts, namely shooting, transmission and display.
The TV set needs to be maintained when having a fault, the universal meter can be used for detecting circuits in the TV set in the maintenance process, and in the circuit detection process of the TV set, particularly the liquid crystal TV set, the circuits are provided with a plurality of circuits, only one of the circuits can be detected when the universal meter is used for detecting, the circuits are always out of consideration when being detected, the change of each voltage can not be detected simultaneously, and the difficulty of judging the fault position is increased.
In order to solve the problem that the existing equipment cannot simultaneously detect multiple circuits, the tool for television maintenance is designed, namely, the detection circuit is arranged in the shell and simultaneously detects the multiple circuits in the television to obtain the voltage values of the multiple circuits, and the moral voltage value of the multiple circuits in the television is detected at the same time, so that the time for judging the fault part is shortened, the efficiency of television maintenance is improved, and the working intensity of maintenance personnel is reduced.
The work of this repair tools for TV is elucidated now in connection with this repair tools for TV's concrete structure, specifically speaking, is connected TV and detection circuitry electricity, through voltage detection module detection circuitry voltage, and the voltage value that display module demonstration detection circuitry detected through comparing voltage value and normal value, synthesizes the comparison with voltage value between each way circuit simultaneously, and then judges unusual circuit position, and is quick high-efficient, has improved the efficiency of TV maintenance.
More specifically, the detection circuit also realizes the functions of reverse input voltage and simulating partial work of the television through the signal input module, the two functions are combined with the voltage detection function of the detection circuit, the television is detected from a plurality of angles, the accuracy of fault position judgment is improved, the overhaul range and the application range of the maintenance tool for the television are increased, and the success rate of television maintenance is improved. The three functions are explained below with reference to the specific structure of the tv service tool.
In the specific embodiments provided by the present disclosure, the voltage detection module may be configured in any suitable configuration. Alternatively, the voltage detection module comprises a power panel detection circuit and a constant current panel detection circuit;
the power panel detection circuit comprises a connector P1 and a connector P2 which are connected in series, and a connector P2 is connected with the display component in series;
the constant current board detection circuit comprises an isolation module, and a connector P3 and a connector P4 which are connected in parallel, wherein the connector P3 and the connector P4 are connected in series with the connector P2 through the isolation module.
Now, the voltage detection function of the voltage detection module is explained by combining a specific circuit of the voltage detection module, specifically, since the power panel and the constant current panel are not grounded together, the same circuit cannot be shared to detect the voltage of the power panel and the constant current panel, now, the power panel detection circuit is explained first, wherein the connector P1 is connected with the circuit of the television, the connector P2 is connected with the voltmeter of the display module, when the circuit on the television is electrically connected with the connector P1, the voltmeter displays the voltage value of the corresponding circuit, and the connector P1 has a plurality of pins, so that the voltage values of a plurality of circuits can be detected, and the simultaneous detection of multiple paths of voltages is realized.
Now, the constant current board detection circuit will be described, where the connector P3 and the connector P4 are used to be electrically connected to the constant current board, and the isolation module solves the problem that the power supply and the constant current board are not grounded together, so as to detect the voltage of multiple paths of non-common ground, and further realize the detection of the circuit voltage on the constant current board.
In particular, the isolation module is a DC-DC isolation module.
In the specific embodiments provided by the present disclosure, the signal input module may be configured in any suitable configuration. Alternatively, the signal input module comprises a voltage signal input module and an analog signal input module which are connected in parallel with each other.
The signal input module will now be described, and the implementation of the inverted input voltage and the function of the analog tv part operation that the signal input module has will be described.
In the specific embodiments provided by the present disclosure, the voltage signal input module may be configured in any suitable configuration. Alternatively, the voltage signal input module comprises a voltage input module and a plurality of voltage reduction modules connected with the voltage input module in parallel, and the voltage reduction modules and the voltage input module are respectively connected with the connector P1 in series;
the voltage input module comprises a dummy load switch, a 24V direct current input module and an adjustable voltage input module which are connected in parallel;
the 24V direct current input module is electrically connected with the voltage reduction module through the dummy load switch, and the dummy load switch is used for controlling the power supply of the voltage reduction module;
the adjustable voltage input module comprises an ADJ voltage regulating module for regulating voltage.
The voltage signal input is described by combining a specific circuit of a voltage signal input module, the connector P1 is electrically connected with a circuit of a television, and the voltage input module is electrically connected with a mains supply, wherein the voltage input module comprises a 24V direct current input module and an adjustable voltage input module, the 24V direct current input module and the adjustable voltage input module are respectively electrically connected with the mains supply, and the 24V direct current input module is electrically connected with a plurality of voltage reduction modules through dummy load switches, so that 24V and a plurality of paths of voltage reduction voltages reduced by the voltage reduction modules can be provided for detecting the television; and for the circuit with the non-rated voltage, the circuit is electrically connected with the adjustable voltage input module, and the adjustable voltage input module is adjusted to provide the matched voltage for the non-rated circuit.
Specifically, the adjusting range of the ADJ voltage adjusting module is 1.3-24V.
Specifically, as an option, the voltage dropping module includes a 3.3V voltage dropping module, a 5V voltage dropping module and a 12V voltage dropping module respectively connected in series with the connector P1, and there are two 5V voltage dropping modules, and one of the 5V voltage dropping modules supplies power to the display module.
The 3.3V buck module is connected in series with relay K1, and the 5V buck module is connected in series with relay K2.
The voltage reduction module is now explained, wherein the 24V voltage provided by the 24V dc input module can provide fixed voltages of 3.3V, 5V and 12V through the action of the voltage reduction modules, and the dummy load switch can provide 200mA detection current for the circuit on the television for detection.
One of the 5V buck modules is used to supply power to voltmeter V1 through voltmeter V4.
In the specific embodiments provided by the present disclosure, the analog signal input module may be configured in any suitable configuration. Alternatively, the analog signal input module includes a switch S1, a switch S2, and a switch S3 provided on the housing;
the switch S1 is sequentially connected with the connector P2 and the connector P1 in series and is used for controlling the television to be turned on again;
the switch S2 is connected with the connector P2 and the connector P1 in series in sequence and is used for controlling a television backlight switch;
the switch S3 is connected in series with the connector P2 and the connector P1 in turn and is used for controlling the brightness control of the television.
Alternatively, the switch S1 is connected in series with the relay K3, and the switch S2 is connected in series with the relay K4.
After the connector P1 is electrically connected with the television, different signals are sent to the television by pulling the switch S1, the switch S2 and the switch S3, so that the motor makes different response actions, wherein the switch S1 controls the secondary startup of the television, the switch S2 controls the backlight switch of the television, the switch S3 controls the brightness control of the television, the accuracy of fault position judgment is improved by simulating the working state of the television, the judgment time is shortened, the television is rechecked after maintenance, and the success rate of maintenance is ensured.
In the specific embodiments provided by the present disclosure, the display assembly may be configured in any suitable configuration. Alternatively, the display assembly comprises a plurality of voltage meters and voltage switches;
the voltmeter comprises voltmeter V1, voltmeter V2, voltmeter V3 and voltmeter V4 which are used for displaying the voltage of the power panel;
the voltmeter further comprises a voltmeter V5 and a voltmeter V6 which are used for displaying the voltage of the constant current plate, the voltmeter V5 and the voltmeter V6 are both electrically connected with the voltage switch, and the voltage switch is used for switching the voltage values of the constant current plate displayed by the voltmeter V5 and the voltmeter V6.
The structure of the display module will now be described, in which the voltmeter is electrically connected to the connector P2, and the voltmeter V1, the voltmeter V2, the voltmeter V3 and the voltmeter V4 are respectively used for detecting the voltage of the circuit on the power supply board; voltmeter V5 and voltmeter V6 are used for detecting the voltage of the circuit on the constant current board, and when detecting the voltage on the constant current board, a voltage switch is further provided, taking voltmeter V5 as an example, the constant current board is provided with a plurality of circuits, the circuits electrically connected with voltmeter V5 are switched by the voltage switch, the voltage values of different circuits can be displayed on voltmeter V5, and similarly, the voltage switch is also used for voltmeter V6, so that voltmeter V6 displays the voltage values of different circuits.
In particular, other display elements, such as display lamps for displaying the on/off state of the circuit, are arranged on the shell.
Example two:
as shown in fig. 1, this embodiment provides a practical solution on the basis of the first embodiment, specifically, the connector P1 is a 9P connector, and the connector P1 is provided with pins 1 to 9, where pin 1 is an input of a detection voltage of 3.3V and a voltage signal input, pin 2 is an input of a detection voltage of 5V and a voltage signal input, pin 3 is an input of a detection voltage of 12V and a voltage signal input, and pin 4 is an input of a detection voltage of 24V and a voltage signal input; the pin 5 is grounded; pin 6 is electrically connected with switch S1 and is used for controlling the television to be powered on for the second time, pin 7 is electrically connected with switch S2 and is used for controlling the television to be powered on in a backlight manner, and pin 8 is electrically connected with switch S9 and is used for controlling the television brightness; pin 9 is electrically connected to the adjustable voltage module.
The connector P2 is a 15P connector, and the connector P2 is provided with pins 1 to 15, where pin 1 is electrically connected to pin 1 of the connector P1 and the voltmeter V1 and is used for displaying the voltage value detected by the voltmeter V1, and pins 2 to 4 are electrically connected to pin 1 of the connector P1 and the voltmeter and are used for displaying the voltage value detected by the voltmeter, and the description is omitted here; pins 6 to 8 are connected in parallel with pins 6 to 8 on the connector P1, respectively, and are electrically connected with the switches S1 to S3, respectively, and the functions are the same; the pins 9 supply power to other display elements on the housing.
The pin 10 and the pin 11 supply power for the voltmeter V5, wherein the pin 10 is connected with the positive electrode, the pin 11 is connected with the negative electrode, the pin 11 is also electrically connected with the negative electrode detected by the constant current board, and the pin 12 is electrically connected with one positive electrode on the constant current board.
The pin 13 and the pin 14 supply power to the voltmeter V6, wherein the pin 13 is connected with the positive electrode, the pin 14 is connected with the negative electrode, the pin 14 is also connected with the negative electrode detected by the constant current board, and the other path of positive electrode on the constant current board of the pin 15 is electrically connected.
Because the constant current board is not grounded with the power supply board, two DC-DC isolation modules are arranged to respectively supply power to the voltmeter V5 and the voltmeter V6.
Specifically, since the pins of the connector P1 and the connector P2 have corresponding functions, the connector P3 and the connector P4 are provided for the input of the detection voltage on the constant current board.
Specifically, a selector switch is further arranged on the detection circuit for switching the detection circuit between two modes of voltage detection and signal input.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, various possible combinations will not be separately described in this disclosure.
The present invention is not limited to the above-mentioned optional embodiments, and any other products in various forms can be obtained by anyone under the teaching of the present invention, and any changes in the shape or structure thereof, all the technical solutions falling within the scope of the present invention, are within the protection scope of the present invention.
Claims (10)
1. A kind of maintenance tool for TV, characterized by that: the device comprises a shell, a display assembly positioned on the shell and a detection circuit positioned in the shell;
the detection circuit comprises a voltage detection module and a signal input module which are connected in parallel, the voltage detection module and the signal input module are electrically connected with the display assembly, and the display assembly displays a detection structure of the voltage detection module or the signal input module.
2. The service tool for a television set according to claim 1, wherein: the voltage detection module comprises a power panel detection circuit and a constant current panel detection circuit;
the power panel detection circuit comprises a connector P1 and a connector P2 which are connected in series, and a connector P2 is connected with the display component in series;
the constant current board detection circuit comprises an isolation module, and a connector P3 and a connector P4 which are connected in parallel, wherein the connector P3 and the connector P4 are connected in series with the connector P2 through the isolation module.
3. The service tool for a television of claim 2, wherein: the signal input module comprises a voltage signal input module and an analog signal input module which are connected in parallel.
4. The service tool for a television set according to claim 3, wherein: the voltage signal input module comprises a voltage input module and a plurality of voltage reduction modules connected with the voltage input module in parallel, and the voltage reduction modules and the voltage input module are respectively connected with the connector P1 in series;
the voltage input module comprises a dummy load switch, a 24V direct current input module and an adjustable voltage input module which are connected in parallel;
the 24V direct current input module is electrically connected with the voltage reduction module through the dummy load switch, and the dummy load switch is used for controlling the power supply of the voltage reduction module;
the adjustable voltage input module comprises an ADJ voltage regulating module for regulating voltage.
5. The service tool for a television set according to claim 4, wherein: the adjusting range of the ADJ pressure adjusting module is 1.3-24V.
6. The service tool for a television set according to claim 4, wherein: the voltage reduction module comprises a 3.3V voltage reduction module, a 5V voltage reduction module and a 12V voltage reduction module which are respectively connected with the connector P1 in series, the number of the 5V voltage reduction modules is two, and one of the 5V voltage reduction modules supplies power to the display assembly.
7. The service tool for a television of claim 6, wherein: the 3.3V buck module is connected in series with relay K1, and the 5V buck module is connected in series with relay K2.
8. The service tool for a television set according to claim 3, wherein: the analog signal input module comprises a switch S1, a switch S2 and a switch S3 which are arranged on the shell;
the switch S1 is sequentially connected with the connector P2 and the connector P1 in series and is used for controlling the television to be turned on again;
the switch S2 is connected with the connector P2 and the connector P1 in series in sequence and is used for controlling a television backlight switch;
the switch S3 is connected in series with the connector P2 and the connector P1 in turn and is used for controlling the brightness control of the television.
9. The service tool for a television of claim 8, wherein: the switch S1 is connected in series with the relay K3, and the switch S2 is connected in series with the relay K4.
10. The service tool for a television set according to claim 1, wherein: the display assembly comprises a plurality of voltage meters and voltage change-over switches;
the voltmeter comprises voltmeter V1, voltmeter V2, voltmeter V3 and voltmeter V4 which are used for displaying the voltage of the power panel;
the voltmeter further comprises a voltmeter V5 and a voltmeter V6 which are used for displaying the voltage of the constant current plate, the voltmeter V5 and the voltmeter V6 are both electrically connected with the voltage switch, and the voltage switch is used for switching the voltage values of the constant current plate displayed by the voltmeter V5 and the voltmeter V6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921925641.2U CN211348460U (en) | 2019-11-08 | 2019-11-08 | Maintenance tool for television |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921925641.2U CN211348460U (en) | 2019-11-08 | 2019-11-08 | Maintenance tool for television |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211348460U true CN211348460U (en) | 2020-08-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921925641.2U Active CN211348460U (en) | 2019-11-08 | 2019-11-08 | Maintenance tool for television |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211348460U (en) |
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2019
- 2019-11-08 CN CN201921925641.2U patent/CN211348460U/en active Active
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