Lamp control circuit of audio and video switcher
By using multiple LED LEDs to indicate the connection between the signal input module, the signal control module, the power module and the power module and its circuit in the lamp control circuit of the audio and video switch, the problem that a single lamp bead cannot effectively indicate the signal in the prior art is solved, and the effect of rapid troubleshooting is achieved.
Patent Information
- Application Number
- CN202421820015.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-30
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2034-07-30
AI Technical Summary
The existing audio and video switch lamp control circuit has only one lamp bead, which cannot effectively indicate whether the signal exists, resulting in difficulty in troubleshooting.
A lamp control circuit for audio and video switch is designed, including a power supply module, a signal control module, a signal input module and a signal output module. Through multiple light emitting diode LEDs, the connection between the signal control module and the signal input module, the signal control module and the power supply module and its circuit is respectively indicated to achieve rapid troubleshooting.
Through the indication of multiple light emitting diode LEDs, the connection status of the signal control module, signal input module, power supply module and its circuit can be quickly judged, and the troubleshooting process can be simplified.
Smart Images
Figure CN222884831U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of audio and video switchers, in particular to a light control circuit of an audio and video switcher. Background Art
[0002] At present, large-scale performances, broadcasting, film and television, etc. have higher and higher requirements for audio and video equipment. Generally, multiple audio and video signals are used for transmission. The staff needs to select and switch one audio and video signal from multiple audio and video signals. Generally, an audio and video switcher is used for switching. There will be an indicator light controlled by a light control circuit on the audio and video switcher for indication. The existing light control circuit of the audio and video switcher still has certain defects when used, such as;
[0003] The existing light control circuit of the audio and video switch usually has only one lamp bead to indicate whether there is a signal on the circuit. If the audio and video switch fails, it is necessary to check the faults one by one, which is a troublesome problem. Utility Model Content
[0004] The purpose of the utility model is to provide a light control circuit of an audio and video switcher to solve the problems raised by the above background technology.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a light control circuit of an audio and video switcher, comprising: a power module, a signal control module, a signal input module and a signal output module;
[0006] The power module is connected in parallel with the signal control module, the signal input module and the signal output module respectively through wires, a first troubleshooting component is connected in series between the signal control module and the signal input module, a second troubleshooting component is connected in series between the signal control module and the power module, a third troubleshooting component is connected in series on the power module, and the first troubleshooting component consists of a resistor R, a diode D and a light-emitting diode LED.
[0007] Preferably, the output end of the signal control module is connected to a resistor R, one side of the resistor R is connected in series with a diode D, one side of the diode D is connected in series with a light emitting diode LED, and the light emitting diode LED is connected to the input end of the signal input module.
[0008] Preferably, the second troubleshooting component is composed of a resistor R, a diode D and a light emitting diode LED.
[0009] Preferably, a resistor R is connected in series between the output end of the signal control module and the resistor R, a diode D is connected in series to one side of the resistor R, a light-emitting diode LED is connected in series to one side of the diode D, and the light-emitting diode LED is connected in series to the power module.
[0010] Preferably, the third troubleshooting component consists of a resistor R, a diode D and a light emitting diode LED.
[0011] Preferably, a resistor R is connected in series to the power module, a diode D is connected in series to one side of the resistor R, a light emitting diode LED is connected in series to one side of the diode D, and the light emitting diode LED is connected in series to the power module.
[0012] Compared with the prior art, the utility model has the following beneficial effects: the light control circuit of the audio and video switcher, if the light emitting diode LED13 is off, the light emitting diode LED12 and the light emitting diode LED11 are constant, then the connection between the signal control module and the signal input module is faulty, if the light emitting diode LED12 is off, the light emitting diode LED13 and the light emitting diode LED11 are constant, then the connection between the signal control module and the power module is faulty, if the light emitting diode LED11, the light emitting diode LED12 and the light emitting diode LED13 are all off, then the power module and its circuit are faulty, to quickly troubleshoot the fault, the specific contents are as follows:
[0013] 1. By observing the light-emitting diode LED11, if the light-emitting diode LED11 is off, the power module or the signal control module and the connected line are faulty; by observing the light-emitting diode LED12, if the light-emitting diode LED12 is off, the line between the signal control module and the power module is faulty; by observing the light-emitting diode LED13, if the light-emitting diode LED13 is off, the connection between the signal control module and the signal input module is faulty; by observing the constant and the off light-emitting diodes LED11, LED12 and LED13, it is determined whether the power module, signal control module, signal input module and the connected circuits are normal, and the fault is quickly eliminated, and then the lighting control circuit of the audio and video switcher is allowed to troubleshoot the fault. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a schematic diagram of the circuit structure of the utility model.
[0015] In the figure: 1. Power module; 2. Signal control module; 3. Signal input module; 4. Signal output module; 5. First troubleshooting component; 6. Second troubleshooting component; 7. Third troubleshooting component. DETAILED DESCRIPTION
[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0017] See also Figure 1 The utility model provides a technical solution: a lighting control circuit of an audio and video switcher, comprising: a power module 1, a signal control module 2, a signal input module 3 and a signal output module 4; the power module 1 is connected in parallel with the signal control module 2, the signal input module 3 and the signal output module 4 respectively through wires, a first troubleshooting component 5 is connected in series between the signal control module 2 and the signal input module 3, a second troubleshooting component 6 is connected in series between the signal control module 2 and the power module 1, a third troubleshooting component 7 is connected in series on the power module 1, the first troubleshooting component 5 is composed of a resistor R13, a diode D13 and a light-emitting diode LED13, the output end of the signal control module 2 is connected to a resistor R13, one side of the resistor R13 is connected in series with a diode D13, one side of the diode D13 is connected in series with a light-emitting diode LED13, and the light-emitting diode LED13 is connected to the input end of the signal input module 3.
[0018] In specific implementation, the power of the signal control module 2 is supplied to the signal input module 3 through the resistor R13, the diode D13 and the light-emitting diode LED13. If the light-emitting diode LED13 is off and the light-emitting diode LED12 and the light-emitting diode LED11 are constant, then the connection between the signal control module 2 and the signal input module 3 is faulty.
[0019] The second troubleshooting component 6 is composed of a resistor R12, a diode D12 and a light-emitting diode LED12. The resistor R12 is connected in series between the output end of the signal control module 2 and the resistor R13. The diode D12 is connected in series to one side of the resistor R12. The light-emitting diode LED12 is connected in series to one side of the diode D12. The light-emitting diode LED12 is connected in series to the power module 1.
[0020] During specific implementation, the power of the signal control module 2 returns to the power module 1 through the resistor R12, the diode D12 and the light-emitting diode LED12 to form a closed loop. If the light-emitting diode LED12 is off and the light-emitting diode LED13 and the light-emitting diode LED11 are constant, then the connection between the signal control module 2 and the power module 1 is faulty.
[0021] The third troubleshooting component 7 is composed of a resistor R11, a diode D11 and a light-emitting diode LED11. The resistor R11 is connected in series to the power module 1, a diode D11 is connected in series to one side of the resistor R11, a light-emitting diode LED11 is connected in series to one side of the diode D11, and the light-emitting diode LED11 is connected in series to the power module 1.
[0022] In specific implementation, the power of the power module 1 returns to the power module 1 through the resistor R11, the diode D11 and the light-emitting diode LED11 to form a closed loop. If the light-emitting diode LED11, the light-emitting diode LED12 and the light-emitting diode LED13 are all off, the power module 1 and its circuit are faulty.
[0023] In summary: when using the light control circuit of the audio and video switcher, first, connect the audio and video input circuit to the input end of the signal input module 3, connect the output end of the signal output module 4 to the audio and video playback device, connect the power supply to the power module 1, and provide power for the light control circuit of the audio and video switcher. The power module 1 distributes the power to the signal control module 2, the signal input module 3 and the signal output module 4 after voltage reduction processing, and at the same time, energizes the resistor R11, the diode D11 and the light emitting diode LED11. The controller device transmits the audio and video switching signal to the signal control module 2, and the signal control module 2 selects the channel to be switched according to the channel to be switched. The corresponding circuit controls the signal input module 3, allowing the signal input module 3 to open the corresponding circuit. The signal input module 3 transmits the audio and video signals to the signal output module 4 for output. When the signal control module 2 selects the corresponding circuit to control the signal input module 3, the resistor R13, the diode D13 and the light-emitting diode LED13 are energized at the same time as the resistor R12, the diode D12 and the light-emitting diode LED12, and the constants and extinction conditions of the light-emitting diodes LED11, LED12 and LED13 are observed to eliminate the fault direction. The contents not described in detail in this description belong to the prior art known to professional and technical personnel in this field.
[0024] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.
Claims
1. A light control circuit for an audio and video switch, comprising: The power supply module (1), the signal control module (2), the signal input module (3) and the signal output module (4) are characterized in that: The power module (1) is connected in parallel with the signal control module (2), the signal input module (3) and the signal output module (4) respectively through wires; a first troubleshooting component (5) is connected in series between the signal control module (2) and the signal input module (3); a second troubleshooting component (6) is connected in series between the signal control module (2) and the power module (1); a third troubleshooting component (7) is connected in series to the power module (1); and the first troubleshooting component (5) is composed of a resistor R13, a diode D13 and a light-emitting diode LED13.
2. The light control circuit of an audio and video switcher according to claim 1, characterized in that: The output end of the signal control module (2) is connected to a resistor R13, one side of the resistor R13 is connected in series with a diode D13, one side of the diode D13 is connected in series with a light-emitting diode LED13, and the light-emitting diode LED13 is connected to the input end of the signal input module (3).
3. The light control circuit of the audio and video switcher according to claim 1, characterized in that: The second troubleshooting component (6) is composed of a resistor R12, a diode D12 and a light emitting diode LED12.
4. The light control circuit of the audio and video switcher according to claim 2, characterized in that: A resistor R12 is connected in series between the output end of the signal control module (2) and the resistor R13, a diode D12 is connected in series to one side of the resistor R12, a light-emitting diode LED12 is connected in series to one side of the diode D12, and the light-emitting diode LED12 is connected in series to the power module (1).
5. The light control circuit of an audio and video switcher according to claim 1, characterized in that: The third troubleshooting component (7) is composed of a resistor R11, a diode D11 and a light emitting diode LED11.
6. The light control circuit of an audio and video switcher according to claim 1, characterized in that: The power module (1) is connected in series with a resistor R11, one side of the resistor R11 is connected in series with a diode D11, one side of the diode D11 is connected in series with a light-emitting diode LED11, and the light-emitting diode LED11 is connected in series with the power module (1).