Multifunctional lamp panel test board

Abstract

The utility model discloses a multifunctional lamp panel test board, which comprises a substrate, and a connector clip J2, a lamp control test module and an indicator lamp test module which are arranged on the substrate, the lamp control test module comprises a white light lamp test module. The white light lamp test module comprises a switch K1, a resistor R28, a resistor R27, a terminal K14, a terminal K13 and a first LED drive circuit. A third pin of the switch K1 is connected with a seventeenth pin of the plug connector J2, and a second pin of the switch K1 is connected with a tenth pin of the plug connector J2; one end of the resistor R28 is connected with the first pin of the switch K1, and the other end of the resistor R28 is connected with the first pin of the terminal K13 and one end of the resistor R27; the other end of the resistor R27 is grounded; a second pin of the terminal K13 is connected with a sixteenth pin of the plug connector J2, and a third pin of the terminal K13 is connected with a second pin of the terminal K14 and the first LED driving circuit; the output end of the first LED driving circuit is connected with the plug connector J2; the indicating lamp test module is connected with the plug connector J2.

Description

Technical Field

[0001] The utility model relates to the technical field of lamp board testing, and specifically, to a multifunctional lamp board test board. Background Art

[0002] The lamp board is a supplementary light component of a camera. Common lamp boards include an infrared lamp group and a white light lamp group. However, with the popularization of the application of security cameras, in addition to the infrared and white light supplementary light functions, the existing lamp boards also add other functional components such as microphones, light control circuits, status indicators, PIRs, etc. according to different requirements, making different models of lamp boards have different functional modules, and there are also differences in the working voltages between lamp boards of different models.

[0003] To ensure that the infrared lamp group, white light lamp group and other functional components on the lamp board are of good quality, before the lamp board leaves the factory, it is necessary to conduct quality inspection on the lamp board. In the prior art, when testing different models of lamp boards, it is necessary to formulate a test board with corresponding test modules for the functional modules on different models of lamp boards. For example, if a certain model of lamp board includes an infrared lamp group, a white light lamp group and a microphone, it is necessary to develop a test board including an infrared lamp test module, a white light lamp test module and a microphone test module to test the corresponding functional modules. Moreover, in addition to the different functional components of different models of lamp boards, the output ports of the functional modules may also be different. For example, the control port of the white light lamp group of some models has a resistor, while the control port of the white light lamp group of some models does not have a resistor. At this time, two different white light lamp test modules need to be used for two different models of white light lamp groups.

[0004] Since there are many models of lamp boards, and the test boards for each model of lamp board are different, this leads to a large variety of test fixtures, increasing the cost of the test board while reducing the test efficiency. Content of the Utility Model

[0005] Aiming at the deficiencies of the prior art, a multifunctional lamp board test board is provided.

[0006] To achieve the above object, the present utility model provides a multifunctional lamp board test board, which includes a substrate and a plug-in component J2, a lamp control test module and an indicator light test module arranged on the substrate; the plug-in component J2 has a total of twenty pins; the lamp control test module includes a white light lamp test module, and the white light lamp test module includes a switch K1, a resistor R28, a resistor R27, a terminal block K14, a terminal block K13 and a first LED driving circuit. The switch K1, the terminal block K14 and the terminal block K13 each have three pins; the third pin of the switch K1 is connected to the seventeenth pin of the plug-in component J2, and the second pin of the switch K1 is connected to the tenth pin of the plug-in component J2; one end of the resistor R28 is connected to the first pin of the switch K1, and the other end of the resistor R28 is respectively connected to the first pin of the terminal block K13 and one end of the resistor R27; the other end of the resistor R27 is grounded; the second pin of the terminal block K13 is connected to the sixteenth pin of the plug-in component J2, and the third pin of the terminal block K13 is respectively connected to the second pin of the terminal block K14 and the first LED driving circuit; the output end of the first LED driving circuit is connected to the plug-in component J2; the indicator light test module is connected to the plug-in component J2.

[0007] According to an embodiment of the present utility model, it further includes a photosensitive test module. The photosensitive test module includes a DIP switch K7, a terminal block K6, a first voltage dividing module, a second voltage dividing module, a triode Q4 and a first light emitting module; the DIP switch K7 has a total of eight pins, the terminal block K6 has a total of three pins, the second pin of the DIP switch K7 is connected to the fourth pin of the plug-in component J2, the fourth pin of the DIP switch K7 is connected to the fifth pin of the plug-in component J2, and the third pin of the DIP switch K7 is respectively connected to the second pin of the terminal block K6 and one end of the first voltage dividing module; the third pin of the terminal block K6 is grounded; the other end of the first voltage dividing module is connected to the base 2 of the triode Q4; the emitter of the triode Q4 is grounded, and the collector 3 of the triode Q4 is connected in series with the second voltage dividing module and then connected to the fourth pin of the DIP switch K7; one end of the first light emitting module is respectively connected to the collector 3 of the triode Q4 and the second voltage dividing module, and the other end is grounded.

[0008] According to an embodiment of the present utility model, the indicator light test module includes a red indicator light module, a green indicator light module and a blue indicator light module. The red indicator light module includes a DIP switch K8, a switch K3 and a resistor R20. The DIP switch K8 has a total of eight pins, and the switch K3 has a total of three pins; the fourth pin of the DIP switch K8 is connected to the tenth pin of the plug-in component J2, the second pin of the DIP switch K8 is connected to the tenth pin of the plug-in component J2, the third pin of the DIP switch K8 is connected to the first pin of the terminal block K3, and the second pin of K3 is connected in series with the resistor R20 and then connected to the eighth pin of the plug-in component J2. The green indicator light module and the blue indicator light module are respectively connected to the plug-in component J2.

[0009] According to an embodiment of the present utility model, it further includes a microphone test module. The microphone test module includes a third voltage dividing module, a triode Q3, a pull-up module, a triode Q2, a second light-emitting module, and a resistor R23. One end of the third voltage dividing module is connected to the base 2 of the triode Q3, and the other end is connected to the tenth pin of the connector J2. The emitter 1 of the triode Q3 is grounded, and the collector 3 of the triode Q3 is respectively connected to the base 2 of the triode Q2 and one end of the pull-up module. The other end of the pull-up module is respectively connected to the third voltage dividing module and the tenth pin of the connector J2. The emitter 1 of the triode Q2 is grounded, and the collector 3 of the triode Q2 is connected to one end of the second light-emitting module. The other end of the second light-emitting module is respectively connected to the pull-up module, the third voltage dividing module, and the tenth pin of the connector J2.

[0010] According to an embodiment of the present utility model, it further includes a PIR test module. The PIR test module includes a resistor R24 and a light-emitting diode D5. One end of the resistor R24 is connected to the first pin of the connector J2, and the other end is connected to one end of the light-emitting diode D5. The other end of the light-emitting diode is grounded.

[0011] According to an embodiment of the present utility model, it further includes a voltage stabilizing circuit. The voltage stabilizing circuit includes a first voltage stabilizing module. The first voltage stabilizing module includes a step-down chip U3, a fourth voltage dividing module, a driving module, a fifth voltage dividing module, and a first filtering module. The step-down chip U1 has a total of six pins, and the fifth pin of the step-down chip U3 is connected to the twentieth pin of the connector J2. One end of the fourth voltage dividing module is connected to the twentieth pin of the connector J2, and the other end is respectively connected to the fifth pin and the fourth pin of the step-down chip U3. The driving module is connected between the first pin and the sixth pin of the connector J2. One end of the fifth voltage dividing module is connected to the sixth pin of the step-down chip U3, and the other end is connected to the third pin of the step-down chip U3. The first filtering module is connected between the sixth pin of the step-down chip U3 and the eighteenth pin of the connector J2.

[0012] According to an embodiment of the present utility model, the voltage stabilizing circuit further includes a second step-down module. The second step-down module includes a second filtering module, a step-down chip Q1, and a third filtering module. The step-down chip Q1 has a total of three pins. The third pin of the step-down chip Q1 is connected to the eighteenth pin of the connector J2. One end of the second filtering module is connected to the eighteenth pin of the connector J2, and the other end is connected to the third pin of the step-down chip Q1. One end of the third filtering module is connected to the second pin of the step-down chip Q1, and the other end is connected to the tenth pin of the connector J2. The first pin of the step-down chip Q1 is grounded.

[0013] According to an embodiment of the present utility model, it further includes an expansion test module and a plug-in J4; the expansion test module includes a first test module and a second test module; the first test module includes a connection terminal K16 and a switch K15. The connection terminal K16 and the switch K15 each have three pins, and the plug-in J4 has a total of six pins; the first pin of the connection terminal K16 is connected to the first pin of the plug-in J4, the second pin of the connection terminal K16 is connected to the first pin of the switch K15, and the third pin of the connection terminal K16 is grounded; the second pin of the switch K15 is connected to the fifth pin of the plug-in J4.

[0014] According to an embodiment of the present utility model, the first LED driving circuit includes a driving chip U2, a first filtering circuit, a voltage dividing circuit, a sampling resistor R2, a freewheeling diode D1, and a second filtering circuit; the driving chip U2 has a VIN terminal, a CSN terminal, a SW terminal, a DIM terminal, and a GND terminal; the first filtering circuit is connected between the VIN terminal of the driving chip U2 and the twentieth pin of the plug-in J2; one end of the voltage dividing circuit is respectively connected to the second pin of the wiring terminal K14 and the third pin of the wiring terminal K13, and the other end is connected to the DIM terminal of the driving chip U2. The CSN terminal of the driving chip U2 is connected to the fourteenth pin of the plug-in J2. The sampling resistor R2 is connected between the VIN terminal and the CSN terminal of the driving chip U2. The negative electrode of the freewheeling diode D1 is connected to the VIN terminal of the driving chip U1, and its positive electrode is connected to the SW terminal of the driving chip U2; one end of the second filtering circuit is respectively connected to the CSN terminal of the driving chip U2, the sampling resistor R2, and the fourteenth pin of the plug-in J2, and the other end is respectively connected to the SW terminal of the driving chip U2 and the thirteenth pin of the plug-in J2.

[0015] According to an embodiment of the present utility model, it further includes a CY05 test module. The CY05 test module (18) includes a plug-in J5 and a buzzer FMQ; the plug-in J5 has five pins. The first pin of the plug-in J5 is connected to the first pin of the buzzer FMQ. The fourth pin and the fifth pin of the plug-in J5 are grounded, and the second pin of the buzzer FMQ is grounded.

[0016] The beneficial effects of the present utility model are as follows. By providing a lamp control test module, an indicator light test module, and a connector J2 on the substrate, among which the connector J2 is respectively connected to the lamp control module including a white light lamp test module. During the test, the corresponding function module can be tested by connecting the lamp board to be tested to the pins corresponding to the connector J2, so that the multi-functional lamp board test board can be applicable to the tests of different models of lamp boards. Further, the white light lamp test module includes a switch K1, a resistor R28, a resistor R27, a terminal K14, a terminal K13, and a white light lamp test module. During the test, according to the usage requirements, the pins of the terminal K14 and the pins of the terminal K13 are selectively short-circuited, so that the resistor R28 and the resistor R27 are selectively connected to the circuit, making the white light lamp test module applicable to white light lamp groups with or without resistors at the EN enable end, effectively expanding the usage scenarios of the multi-functional lamp board test board. Description of the Drawings

[0017] The drawings described herein are used to provide a further understanding of the present application, form a part of the present application, and the illustrative embodiments and descriptions thereof are used to explain the present application, and do not constitute an improper limitation to the present application. In the drawings:

[0018] Figure 1 It is a schematic diagram of the multi-functional lamp board test board in the embodiment;

[0019] Figure 2 It is a schematic diagram of the connector J2 in the embodiment;

[0020] Figure 3 It is a circuit diagram of the white light lamp test module in the embodiment;

[0021] Figure 4 It is a circuit diagram of the infrared lamp test module in the embodiment;

[0022] Figure 5 It is a circuit diagram of the indicator light test module in the embodiment;

[0023] Figure 6 It is a circuit diagram of the photosensitive test module in the embodiment;

[0024] Figure 7 It is a circuit diagram of the microphone test module in the embodiment;

[0025] Figure 8 It is a schematic diagram of the voltage stabilizing circuit in the embodiment;

[0026] Figure 9 It is a schematic diagram of the CY05 test module in the embodiment;

[0027] Figure 10 It is a schematic diagram of the PIR test module in the embodiment;

[0028] Figure 11 Schematic diagram of the connector J4 in the embodiment;

[0029] Figure 12 Schematic diagram of the extended test module in the embodiment.

[0030] Description of the Reference Numerals

[0031] 1 - Substrate; 11 - Lamp control test module; 111 - White light lamp test module; 1111 - First LED drive circuit; 11111 - First filter circuit; 11112 - Voltage division circuit; 11113 - Second filter circuit; 112 - Infrared lamp test module; 12 - Indicator lamp test module; 121 - Red indicator lamp module; 122 - Green indicator lamp module; 123 - Blue indicator lamp module; 13 - Photosensitive test module; 131 - First voltage division module; 132 - Second voltage division module; 133 - First light emitting module; 14 - Microphone test module; 141 - Third voltage division module; 142 - Pull-up module; 143 - Second light emitting module; 15 - PIR test module; 16 - Voltage stabilization circuit; 161 - First voltage stabilization module; 1611 - Fourth voltage division module; 1612 - Drive module; 1613 - Fifth voltage division module; 1614 - First filter module; 162 - Second voltage stabilization module; 1621 - Second filter module; 1622 - Third filter module; 17 - Extended test module; 171 - First test module; 172 - Second test module; 18 - CY05 test module. Detailed implementation manners

[0032] The following will disclose multiple embodiments of the present invention in the form of diagrams. For the sake of clear description, many practical details will be described together in the following narrative. However, it should be understood that these practical details are not used to limit the present invention. That is to say, in some embodiments of the present invention, these practical details are not necessary. In addition, for the purpose of simplifying the diagrams, some conventional structures and components will be shown in a simple schematic manner in the diagrams.

[0033] In addition, in the present utility model, descriptions such as "first", "second", etc. are only for descriptive purposes, and do not particularly refer to the meaning of order or sequence, nor are they used to limit the present utility model. They are merely used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0034] Please refer to Figure 1 and Figure 2 , Figure 1 which is a schematic diagram of a multi-functional lamp board test board, Figure 2 and Figure 2 is a schematic diagram of the plug-in J2. This embodiment provides a multi-functional test board, which includes a substrate 1 and a lamp control test module 11, an indicator light test module 12 and a plug-in J2 installed on the substrate 1, and the plug-in J2 is respectively connected to the lamp control test module 11 and the indicator light test module 12. The plug-in J2 has a total of twenty pins, and some of the pins of the plug-in J2 are connected to the lamp control test module 11, and the other part of the pins of the plug-in J2 are connected to the indicator light test module 12.

[0035] When testing the lamp board, use a connecting wire to connect the test lamp board to the corresponding pins of the plug-in J2, so that the test lamp board is connected to the corresponding lamp control test module 11 or indicator light test module 12. Thus, by setting different test modules on the substrate 1 and setting the corresponding plug-in J2, the test board can be adapted to the testing of lamp boards with different functions and different models.

[0036] Please refer to Figure 3 , Figure 3It is the circuit diagram of the white light lamp test module. Specifically, the lamp control test module 11 includes a white light lamp test module 111. The white light lamp test module 111 includes a switch K1, a resistor R28, a resistor R27, a terminal block K14, a terminal block K13, and a first LED driving circuit 1111. Among them, the switch K1, the terminal block K14, and the terminal block K13 each have three pins. The third pin of the switch K1 is connected to the seventeenth pin of the connector J2 and grounded. The first pin of the switch K1 is respectively connected to the first pin of the terminal block K14 and the first pin of the terminal block K13. The second pin of the switch K1 is connected to the tenth pin of the connector J2, so that it is connected to the 3.3V voltage. One end of the resistor R28 is connected to the first pin of the switch K1, and the other end is respectively connected to the first pin of the terminal block K13 and one end of the resistor R27. The other end of the resistor R27 is grounded. The second pin of the terminal block K13 is connected to the sixteenth pin of the connector J2, which is used to receive the enable signal W-EN. The third pin of the terminal block K13 is respectively connected to the second pin of the terminal block K14 and the first LED driving circuit 1111. The output end of the first LED driving circuit 1111 is connected to the connector J2, and the white light lamp group to be tested is connected to some pins of the connector J2, so that the output end of the first LED driving circuit is connected to the white light lamp group to be tested. The indicator light module 12 is connected to some pins of the connector J2.

[0037] During the test, connect the white light lamp group to the connector J2. When the EN enable terminal of the white light lamp group to be tested has a resistor, there is no need to connect the resistor R28 and the resistor R27 to the test circuit. Therefore, short-circuit the first pin and the second pin of the terminal block K14, and short-circuit the second pin and the third pin of the terminal block K13. At this time, the resistor R28 and the resistor R27 are short-circuited. Turn on the switch K1 so that the second pin of the switch K1 is short-circuited to the first pin, and the W-EN drive signal is directly input into the first LED driving circuit 1111. The 3.3V power supply voltage is output from the switch K1, then passes through the first pin and the second pin of the terminal block K14, and finally is input into the first LED driving circuit 1111, so that the first LED driving circuit 1111 operates. At this time, if the white light lamp group to be tested lights up, it means that the white light lamp group operates normally and is a good product; if the white light lamp group of the lamp board to be tested cannot light up, it means that there is a problem with the white light lamp group, thus achieving the test purpose.

[0038] When the EN enable terminal of the white light group to be tested does not have a resistor, the resistors R28 and R27 need to be connected to the test circuit. At this time, short-circuit the second pin and the third pin of the terminal block K14, and short-circuit the first pin and the second pin of the terminal block K13. At this time, the resistor R28 and the resistor R27 are connected. Turn on the switch K1, and the W-EN enable signal is input into the first LED driving circuit 1111 after being divided by the resistors R28 and R27. The first LED driving circuit 1111 is started by receiving the W-EN signal. If the white light lamp module of the lamp board to be tested lights up, it indicates that the white light lamp module of the lamp board is operating normally.

[0039] In this way, according to the usage requirements, selectively short-circuit the pins of the terminal block K14 and the pins of the terminal block K13, so that the resistors R28 and R27 are selectively connected to the circuit, making the white light lamp test module 111 applicable to white light lamp groups with or without a resistor at the EN enable terminal, effectively expanding the usage scenarios of the multi-functional lamp board test board.

[0040] Furthermore, the first LED driving circuit 1111 includes a driving chip U2, a first filtering circuit 11111, a voltage dividing circuit 11112, a sampling resistor R2, a freewheeling diode D1, and a second filtering circuit 11113. The driving chip U2 has a VIN terminal, a CSN terminal, a SW terminal, a DIM terminal, and a GND terminal. The first filtering circuit 11111 is connected between the VIN terminal of the driving chip U2 and the twentieth pin of the connector J2, and the 12V operating voltage enters the VIN terminal of the driving chip U2 after passing through the first filtering circuit 11111. One end of the voltage dividing circuit 11112 is respectively connected to the second pin of the terminal block K14 and the third pin of the terminal block K13, and the other end is connected to the DIM terminal of the driving chip U2. The enable signal W-EN enters the DIM terminal of the driving chip U2 after being divided by the voltage dividing circuit 11112, causing the driving chip U2 to operate. The CSN terminal of the driving chip U2 is connected to the fourteenth pin of the connector J2, and the 12V operating voltage is output from the CSN terminal of the driving chip U2 after passing through the driving chip U2. The sampling resistor R2 is connected between the VIN terminal and the CSN terminal of the driving chip U2, and the output current of the driving chip U2 is sampled by the sampling resistor R5 and returned to the driving chip U2. The driving chip U2 adjusts the output current by calculating the sampled current. The negative electrode of the freewheeling diode D1 is connected to the VIN terminal of the driving chip U1, and the positive electrode is connected to the SW terminal of the driving chip U2. One end of the second filtering circuit 11113 is respectively connected to the CSN terminal and the SW terminal of the driving chip U2; the other end is respectively connected to the thirteenth pin and the fourteenth pin of the connector J2, so that the output voltage of the driving chip U2 is output after passing through the second filtering circuit 11113.

[0041] In this example, the first filtering circuit 11111 includes capacitor C7 and capacitor C8. One end of capacitor C7 is respectively connected to the twentieth pin of connector J2 and the VIN terminal of driving chip U1, and the other end thereof is grounded. Capacitor C8 is in parallel with capacitor C7, and both capacitor C7 and capacitor C8 are used for filtering.

[0042] The second voltage dividing circuit 11112 includes resistor R4 and resistor R3. One end of resistor R4 is connected to the DIM terminal of driving chip U2, and the other end thereof is respectively connected to the second pin of terminal block K14 and the third pin of terminal block K13. One end of resistor R3 is respectively connected to the DIM terminal of driving chip U2 and resistor R4, and the other end thereof is grounded.

[0043] In addition, the first LED driving circuit further includes capacitor C9, which is used for filtering. One end of capacitor C9 is respectively connected to resistor R4, resistor R3 and the DIM terminal of driving chip U2, and the other end thereof is grounded.

[0044] The second filtering circuit 11113 includes inductor L1 and capacitor C5. One end of inductor L1 is connected to the SW terminal of driving chip U1, and the other end thereof is connected to the thirteenth pin of connector J2. One end of capacitor C5 is respectively connected to the CSN terminal of driving chip U2 and the fourteenth pin of connector J2, and the other end thereof is respectively connected to inductor L1 and the thirteenth pin of connector J2. Among them, inductor L1 is used for voltage regulation, and capacitor C5 is used for filtering.

[0045] Please refer to Figure 4 , Figure 4 for the circuit diagram of the infrared lamp test module. The lamp control test module 11 further includes an infrared lamp test module 112, which is used for testing the infrared lamp module of the to-be-tested lamp board. In this embodiment, the circuit structure of the infrared lamp test module 112 is the same as that of the white light lamp test module 111, and will not be elaborated here one by one. The difference is that the positive output terminal of the infrared lamp test module 112 is connected to the twelfth pin of connector J2, and the negative output terminal of the infrared lamp test module 112 is connected to the eleventh pin of connector J2. When testing the infrared lamp group of the lamp board, connect the positive pin of the infrared lamp group to the twelfth pin of connector J2 and the negative pin to the eleventh pin of connector J2, then the infrared lamp test module 112 can be connected to the to-be-tested infrared lamp group.

[0046] During testing, the infrared lamp group with a resistor at the EN enable terminal of the lamp board is connected to the connector J2. The first pin and the second pin of the terminal block K12 are shorted, and the second pin and the third pin of the terminal block K11 are shorted. When the EN enable terminal of the infrared lamp group on the lamp board has no resistor, the second pin and the third pin of the terminal block K12 are shorted, and the first pin and the second pin of the terminal block K11 are shorted. In this way, by separately controlling the shorting method of the terminal block K12 and the terminal block K11, the infrared lamp test module is adapted to the test of the infrared lamp group with or without a resistor.

[0047] Please refer to Figure 5 , Figure 5 is the circuit diagram of the indicator light test module. The indicator light test module 12 includes a red indicator light module 121, a green indicator light module 122, and a blue indicator light module 123. The red indicator light module 121 includes a DIP switch K8, a switch K3, and a resistor R20. Among them, the DIP switch K8 has eight pins, and the switch K3 has a total of three pins. The fourth pin of the DIP switch K8 is connected to the tenth pin of the connector J2, which is used to receive a 3.3V voltage. The second pin of the DIP switch K8 is connected to the ninth pin of the connector J2 and grounded. The third pin of the DIP switch K8 is connected to the first pin of the switch K3. The second pin of the switch K3 is connected to the eighth pin of the connector J2 after passing through the resistor R20. The eighth pin of the connector J2 is connected to the red indicator light of the lamp board to be tested.

[0048] During detection, the positive pole of the red indicator light of the lamp board to be tested is connected to the eighth pin of the connector J2, so that the red indicator light is connected to the red indicator light module 121. The DIP switch K8 is turned to the fourth pin so that the fourth pin is connected to the third pin. The switch K3 is turned on so that the first pin and the second pin of the switch K3 are connected. The 3.3V supply voltage flows through the DIP switch K8, then through the switch K3, and then is input to the red indicator light of the lamp board to be tested after being divided by the resistor R20. If the red indicator light lights up, it means that the red indicator light is a good product; if the red indicator light does not light up, it means that the red indicator light is damaged, thus realizing the detection of the red indicator light of the lamp board.

[0049] The green indicator light module 122 includes a DIP switch K5, a switch K4, and a resistor R21. The blue indicator light module 123 includes a DIP switch K10, a switch K9, and a resistor R22. It should be noted that the connection methods of the green indicator light module 122 and the blue indicator light module 123 are the same as that of the red indicator light module 121. The difference is that the output interface of the green indicator light module 122 is connected to the seventh pin of the connector J2, and the green indicator light module 122 controls the green indicator light of the to-be-tested lamp board, while the output interface of the blue indicator light module 123 is connected to the sixth pin of the connector J2, so that the blue indicator light module 123 controls the blue indicator light of the to-be-tested lamp board. It should be noted that the testing methods of the green indicator light module 122 and the blue indicator light module 123 are the same as that of the red indicator light module 121, and will not be elaborated here one by one.

[0050] By setting the indicator light testing module 12, the lamp board with indicator lights can be correspondingly connected to the insertion interfaces of the connector J2, and the red indicator light is tested through the red indicator light module 121, the green indicator light is tested through the green indicator light module 122, and the blue indicator light is tested through the blue indicator light module 123.

[0051] Please refer to Figure 6 , Figure 6 For the circuit diagram of the photosensitive testing module. The multifunctional lamp board testing board in this embodiment further includes a photosensitive testing module 13. The photosensitive testing module 13 is arranged on the substrate 1 and includes a DIP switch K7, a terminal block K6, a first voltage dividing module 131, a second voltage dividing module 132, a triode Q4, and a first light emitting module 133. Among them, the DIP switch K7 has a total of eight pins, and the terminal block K6 has a total of three pins. The second pin of the DIP switch K7 is connected to the fifth pin of the connector J2, which is used to receive the ADC digital-to-analog conversion signal. The fourth pin of the DIP switch K7 is connected to the fourth pin of the connector J2, which is used to connect the positive electrode CDS+ of the photosensitive resistor of the to-be-tested lamp board. The third pin of the DIP switch K7 is respectively connected to the second pin of the terminal block K6 and one end of the first voltage dividing module 131. The third pin of the terminal block K6 is grounded. The other end of the first voltage dividing module 131 is connected to the base 2 of the triode Q4. The emitter 1 of the triode Q4 is grounded, and the collector 3 of the triode Q4 is connected in series with the second voltage dividing module 132 and then connected to the fourth pin of the DIP switch K7. One end of the first light emitting module 133 is respectively connected to the collector 3 of the triode Q4 and the second voltage dividing module 132, and the other end is grounded.

[0052] In this embodiment, the first voltage dividing module 131 includes a resistor R18 and a resistor R30. One end of the resistor R18 is connected to the third pin of the DIP switch K7, and the other end is connected to the base 2 of the triode Q4. One end of the resistor R30 is connected to the resistor R18 and the base 2 of the triode Q4 respectively, and the other end is grounded. The resistor R18 and the resistor R30 are used for voltage division of the base 2 of the triode Q4. The second voltage dividing module 132 includes a resistor R17 and a resistor R16. One end of the resistor R17 is connected to the fourth pin of the DIP switch K7, and the other end is connected to the eighteenth pin of the connector J2, so that the connector J2 provides a 5V power supply voltage for it. One end of the resistor R16 is connected to the resistor R17 and the eighteenth pin of the connector J2 respectively, and the other end is connected to the collector 3 of the triode Q4 and the first light-emitting module 133 respectively. The first light-emitting module 133 includes a resistor R29 and a light-emitting diode D4. One end of the resistor R29 is connected to the collector 3 of the triode Q4, and the other end is connected to the positive electrode of the light-emitting diode D4. The negative electrode of the light-emitting diode D4 is grounded. In this embodiment, the photosensitive test module 13 further includes a resistor R15 and a resistor R19. One end of the resistor R15 is connected to the resistor R16, the base 2 of the triode Q4 and the first light-emitting module 133 respectively, and the other end is grounded. One end of the resistor R19 is connected to the third pin of the terminal block K6, and the other end is grounded. The resistor R19 is used to protect the third pin of the terminal block K6.

[0053] During the test, if the to-be-tested lamp board has no light control circuit, that is, the to-be-tested lamp board has no photosensitive test requirement. Turn the DIP switch K7 to the first pin, and short-circuit the second pin and the third pin of the terminal block K6. At this time, the photosensitive test module 13 is not connected to the to-be-tested lamp board. The base of the triode Q4 is at a low level, and the triode Q4 is not turned on. However, after voltage division by the resistor R16 from the eighteenth pin of the connector J2, a forward conduction voltage is provided for the light-emitting diode D4, so that the light-emitting diode D4 is in a constant-on state.

[0054] If there is a light control circuit on the lamp board to be tested and the output terminal is an ADC terminal, and its output is high level or low level. Connect the ADC terminal of the light control circuit to the fourth pin of the connector J2, so that the output signal of the ADC terminal of the light control circuit is output to the second pin of the DIP switch K7. During the test, set the DIP switch K7 to the second pin, short-circuit the second pin and the third pin of the DIP switch K7, and short-circuit the first pin and the second pin of the terminal block K6, so that the output signal of the ADC terminal of the light control circuit is output through the third pin of the DIP switch K7, and then enters the base 2 of the triode Q4 after being divided by the resistors R18 and R30. Under normal conditions, when the ADC terminal of the light control circuit outputs a high level, the triode Q4 conducts, and at this time, the light-emitting diode D4 goes out; when the ADC terminal of the light control circuit outputs a low level, the triode Q4 cuts off, and the light-emitting diode D4 lights up. In this way, by controlling the light control ADC conversion circuit to output high level or low level, observing whether the light-emitting diode D4 is off or on, the test of the light control circuit with the output terminal being the ADC terminal is realized.

[0055] When there is a light control circuit on the lamp board to be tested and the output ports are the CDS+ terminal and the CDS- terminal, connect the CDS+ terminal of the light control circuit to the fifth pin of the connector J2, so that the CDS+ terminal of the light control circuit is connected to the fourth pin of the DIP switch K7, and connect the CDS- terminal of the light control circuit to the fourth pin of the connector J2, so that the CDS- terminal of the lamp board to be tested is connected to the second pin of the DIP switch K7; then set the DIP switch K7 to the second pin, so that the second pin and the third pin are short-circuited, and short-circuit the second pin and the third pin of the terminal block K6. During the test, when the light control circuit on the lamp board to be tested is normal, when the light control circuit on the lamp board to be tested senses that the environment is bright, the base of the triode Q4 is at a high level. At this time, the triode Q4 conducts and the light-emitting diode D4 goes out; if the light-emitting diode D4 is on, it means that there is a problem with the light control circuit on the lamp board to be tested. When the light control circuit on the lamp board to be tested senses that the environment is dark, the base of the triode Q4 is at a low level, the triode Q4 cuts off, and the light-emitting diode D4 is on; if the light-emitting diode D4 is off, it means that there is a problem with the light control circuit on the lamp board to be tested.

[0056] When there is a light control circuit on the light board to be tested and only the CDS+ terminal is available at the output end, connect the CDS+ terminal of the light control circuit to the fifth pin of the connector J2, so that the CDS+ terminal of the light control circuit is connected to the fourth pin of the DIP switch K7. Turn the DIP switch K7 to the fourth pin, so that the fourth pin and the third pin are short-circuited, and the first pin and the second pin of the terminal block K6 are short-circuited. During the test, when the light control circuit of the light board to be tested is normal, when the light control circuit of the light board to be tested senses that the environment is bright, the base of the triode Q4 is at a low level, the triode Q4 is cut off, and the light-emitting diode D4 lights up; if the light-emitting diode D4 is in the off state, it means that there is a problem with the light control circuit of the light board to be tested. When the light control circuit of the light board to be tested senses that the environment is dark, the base of the triode Q4 is at a high level, and the light-emitting diode D4 goes out; if the light-emitting diode D4 lights up, it means that there is a problem with the light control circuit of the light board to be tested.

[0057] In this way, by connecting the output terminal of the light control circuit of the light board to be tested to the corresponding pin of the DIP switch K7 and turning the DIP switch K7, the on or off state of the triode Q4 is controlled by the change of the light and darkness of the environment, so as to change the light and darkness state of the light-emitting diode D4, thereby meeting the test of the light control circuits of different types of light boards.

[0058] In another embodiment, the photosensitive test module 13 further includes a terminal block K19. The first pin of the terminal block K19 is connected to the fourth pin of the connector J2. The second pin of the terminal block K19 is used to receive the ADC-VCC signal, and the third pin of the terminal block K19 is connected to the second pin of the terminal block K6. The terminal block K19 provides an additional test interface. The voltage output by the light control circuit can be detected by connecting a voltage detection meter to the third pin of the terminal block K19. The output voltage of the light control circuit will change with the change of the ambient light, thereby realizing the voltage detection of the light control circuit.

[0059] Please refer to Figure 7 , Figure 7It is the circuit diagram of the microphone test module. It also includes the microphone test module 14 which is used to test the microphone of the lamp board to be tested. The microphone test module 14 includes a third voltage division module 141, a triode Q3, a pull-up module 142, a triode Q2, a second light-emitting module 143 and a resistor R23. The base 2 of the triode Q3 is connected to the second pin of the connector J2 and is used to connect the MIC port of the microphone of the lamp board to be tested. One end of the third voltage division module 141 is connected to the base 2 of the triode Q3, and the other end is connected to the tenth pin of the connector J2 to receive the 3.3V power supply voltage. The emitter 1 of the triode Q3 is grounded, and the collector 3 of the triode Q3 is respectively connected to the base 2 of the triode Q2 and one end of the pull-up module 142. The other end of the pull-up module 142 is respectively connected to the third voltage division module 141 and the tenth pin of the connector J2. The emitter 1 of the triode Q2 is grounded, and the collector 3 of the triode Q2 is connected to one end of the second light-emitting module 143. The other end of the second light-emitting module 143 is respectively connected to the pull-up module 142, the third voltage division module 141 and the tenth pin of the connector J2. One end of the resistor R23 is connected to the third pin of the connector J2 and is used to connect the MIC- end of the microphone of the lamp board to be tested, and the other end of the resistor R23 is grounded.

[0060] In this embodiment, the third voltage division module 141 includes a resistor R1 and a resistor R8. One end of the resistor R1 is connected to the base 2 of the triode Q3, and the other end is connected to the tenth pin of the connector J2 so that it is connected to the 3.3V power supply voltage, and the resistor R8 is connected in parallel with the resistor R1. The pull-up module 142 includes a resistor R9, and the resistor R9 serves as the pull-up resistor between the collector of the triode Q3 and the base of the triode Q2. The second light-emitting module 143 includes a resistor R10 and a light-emitting diode D3. The collector 3 of the triode Q2 is connected to the negative electrode of the light-emitting diode D3, the positive electrode of the light-emitting diode D3 is connected to one end of the resistor R10, and the other end of the resistor R10 is respectively connected to the resistor R9, the resistor R8, the resistor R1 and the tenth pin of the connector J2.

[0061] During the test, connect the MIC end of the microphone of the lamp board to be tested to the second pin of the connector J2, and connect the MIC- end of the microphone to the third pin of the connector J2. Then play sound to the microphone of the lamp board to be tested. After the microphone receives the sound, it converts the sound signal into a voltage signal and transmits the voltage signal to the MIC end. At this time, the MIC end of the microphone of the lamp board to be tested is at a high level. The base 2 of the triode Q3 is at a high level, which makes the triode Q3 conduct. At this time, the base of the triode Q2 is at a low level, and the triode Q2 is cut off, and the light-emitting diode D3 lights up, indicating that the microphone is a good product. If the light-emitting diode D3 does not light up, it means that there is a problem with the microphone.

[0062] Please refer to Figure 8 , Figure 8Schematic diagram of a voltage stabilizing circuit. It further includes a voltage stabilizing circuit 16, and the voltage stabilizing circuit 16 includes a first voltage stabilizing module 161 and a second voltage stabilizing module 162. Among them, the first voltage stabilizing module 161 includes a buck chip U3, a fourth voltage dividing module 1611, a driving module 1612, a fifth voltage dividing module 1613 and a first filtering module 1614. Among them, the buck chip has a total of six pins. The fifth pin of the buck chip U3 is connected to the twentieth pin of the connector J2, and the fifth pin of the buck chip U3 is used to receive a 12V supply voltage. One end of the fourth voltage dividing module 1611 is connected to the twentieth pin of the connector J2, and the other end is connected to the fifth pin and the fourth pin of the buck chip U3. The driving module 1612 is connected between the first pin and the sixth pin of the connector J2. One end of the fifth voltage dividing module 1613 is connected to the sixth pin of the buck chip U3, and the other end is connected to the third pin of the buck chip U3. The first filtering module 1614 is connected between the sixth pin of the buck chip U3 and the eighteenth pin of the connector J2.

[0063] In this embodiment, the fourth voltage dividing module 1611 includes a resistor R13 and a resistor R14. One end of the resistor R13 is connected to the fifth pin of the buck chip U3, and the other end is grounded after being connected in series with the resistor R14. The fourth pin of the buck chip U3 is grounded through the resistor R14. The driving module 1612 includes an inductor L3 and a capacitor C10. One end of the inductor L3 is connected to the sixth pin of the buck chip U3, and the other end is connected to the eighteenth pin of the connector J2. The inductor L3 is used for filtering. One end of the capacitor C10 is connected to the first pin of the buck chip U3, and the other end is connected to the third pin of the buck chip U3. The capacitor C10 is a bootstrap capacitor of the buck chip U3 and is used to drive the buck chip U3. The fifth voltage dividing module 1613 includes a resistor R11 and a resistor R12. One end of the resistor R11 is respectively connected to the inductor L3 and the eighteenth pin of the connector J2, and the other end is grounded after being connected in series with the resistor R12. One end of the resistor R12 is respectively connected to the resistor R11 and the third pin of the buck chip U3, and the other end is grounded. Both the resistor R11 and the resistor R12 are used for voltage division. The first filtering module 1614 includes a capacitor C12 and a capacitor C13. One end of the capacitor C12 is respectively connected to the inductor L3, the resistor R11 and the eighteenth pin of the buck chip U3, and the other end is grounded. One end of the capacitor C13 is respectively connected to the capacitor C12 and the eighteenth pin of the buck chip, and the other end is grounded. In addition, in this example, the first voltage stabilizing module 161 further includes a capacitor C6. One end of the capacitor C6 is connected to the fifth pin of the buck chip U3, and the other end is grounded. The capacitor C6 is used for filtering.

[0064] In this example, the model number of the step-down chip U3 is RY9121. The 12V supply voltage is input, filtered by capacitor C6 and divided by resistor R13, then enters the step-down chip U3. After being stepped down by the step-down chip U1, it is filtered by inductor L3, capacitor C12 and capacitor C13, and then a 5V voltage is output to the eighteenth pin of the connector J2, thus realizing the conversion from 12V supply voltage to 5V supply voltage.

[0065] The second voltage regulation module 162 includes a second filtering module 1621, a step-down chip Q1 and a third filtering module 1622. The step-down chip Q1 has three pins in total. The third pin of the step-down chip Q1 is connected to the eighteenth pin of the connector J2, and the third pin of the step-down chip Q1 receives the 5V supply voltage. One end of the second filtering module 1621 is connected to the eighteenth pin of the connector J2, and the other end is connected to the third pin of the step-down chip Q1. One end of the third filtering module 1622 is connected to the second pin of the step-down chip Q1, and the other end is connected to the tenth pin of the connector. The first pin of the step-down chip Q1 is grounded.

[0066] In this example, the second filtering module 1621 includes capacitor C14 and capacitor C11. One end of capacitor C14 is respectively connected to the eighteenth pin of the connector J2 and the step-down chip Q1, and the other end is grounded. One end of capacitor C11 is respectively connected to the eighteenth pin of the connector J2, capacitor C14 and the third pin of the step-down chip Q1. Capacitor C14 and capacitor C11 are used for filtering. The third filtering module 1622 includes capacitor C15. One end of capacitor C15 is connected to the second pin of the step-down chip Q1 and the tenth pin of the connector J2, and the other end is grounded. The 5V working voltage is stepped down to 3.3V voltage after passing through the second voltage regulation module 162 and output to the tenth pin of the connector J2.

[0067] Thus, by setting the first voltage regulation module 161, the 12V supply voltage is converted into 5V supply voltage, and by the second voltage regulation module 162, the 5V supply voltage is converted into 3.3V supply voltage. Different supply voltages of different magnitudes are provided for the multi-functional lamp board test board to meet the detection of lamp boards with different power supply requirements.

[0068] Please refer to Figure 9 , Figure 9 For the schematic diagram of the CY05 test module. The multi-functional lamp board test board of this embodiment further includes a CY05 test module 18. The pin test module includes a connector J5 and a buzzer FMQ. The connector J5 has five pins in total. The first pin of the connector J5 is connected to the first pin of the buzzer FMQ. The fourth and fifth pins of the connector J5 are grounded. The second pin of the buzzer FMQ is connected in series with resistor R31 and grounded.

[0069] The CY05 test module 18 is specifically used for the lamp board with the model CY05. During the test, the positive pin and the negative pin of the lamp board to be tested are respectively connected to the second pin and the third pin of the connector J5 through wiring. If the pins of the lamp board are short-circuited, the first pin and the second pin of the buzzer FMQ form a closed loop, and the buzzer FMQ makes a sound; if the lamp board is okay, the first pin and the second pin of the buzzer FMQ cannot form a closed loop and do not make a sound.

[0070] Please refer to Figure 10 , Figure 10 is a schematic diagram of the PIR test module. The multifunctional lamp board test board of this embodiment further includes a PIR test module 15. The PIR test module 15 includes a resistor R24 and a light-emitting diode D5. One end of the resistor R24 is connected to the first pin of the connector J2, which is used to receive the output signal of the PIR infrared sensor. The other end of the resistor R24 is connected to the positive electrode of the light-emitting diode D5, and the other end of the light-emitting diode D5 is grounded. When the PIR infrared sensor senses a human body, it outputs a high-level signal. The high-level signal is divided by the resistor R24 and then output to the light-emitting diode D5, causing the light-emitting diode D5 to light up. Thus, the PIR infrared sensor is tested through the PIR indicator control module.

[0071] Please refer to Figure 11 and Figure 12 , Figure 11 is a schematic diagram of the connector J4, Figure 12 is a schematic diagram of the expansion test module. Further, the multifunctional lamp board test board further includes an expansion test module 17 and a connector J4. The expansion test module 17 is electrically connected to the connector J4. The expansion test module 17 includes a first test module 171 and a second test module 172. Among them, the first test module 171 includes a connection terminal K16 and a switch K15. The connection terminal K16 and the switch K15 each have three pins. The first pin of the connection terminal K16 is connected to the first pin of the connector J4 to receive a 12V power supply voltage. The second pin of the connection terminal K16 is connected to the first pin of the switch K15, and the third pin of the connection terminal K16 is grounded. The second pin of the switch K15 is connected to the fifth pin of the connector J4, and the fifth pin of the connector J4 is used to connect the positive input terminal of the component to be tested. In a real usage scenario, the positive input terminals of components to be tested such as a buzzer and a speaker are connected to the fifth pin of the connector J4, and the switch K15 is turned on, so that the first test module 171 supplies power to the component to be tested. The quality of the component to be tested is judged by observing the working state of the component. For example, when a buzzer is connected and the switch is turned on, if the buzzer makes a sound, it means the buzzer is a good product. In addition, in this embodiment, the circuit structure of the second test module 172 is the same as that of the first test module 171, and will not be elaborated here one by one. The difference is that the output terminal of the second test module 172 is connected to the sixth pin of the connector J4.

[0072] By setting the first test module 171 and the second test module 172, the test ports of the multi-functional lamp board test board are expanded, making the application scenarios of the multi-functional test board more extensive.

[0073] The above are only the embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, various modifications and changes can be made to the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the scope of the claims of the present invention.

Claims

1. A multifunctional light board test board, characterized in that: include: A substrate (1) and a connector J2, a light control test module (11) and an indicator light test module (12) arranged on the substrate (1); the connector J2 has a total of twenty pins; the light control test module (11) includes a white light lamp test module (111), the white light lamp test module (111) includes a switch K1, a resistor R28, a resistor R27, a terminal K14, a terminal K13 and a first LED drive circuit (1111), the switch K1, the terminal K14 and the terminal K13 each having three pins; the third pin of the switch K1 is connected to the seventeenth pin of the connector J2, and the second pin of the switch K1 is connected to the seventeenth pin of the connector J2. The first pin of the first LED driving circuit (1111) is connected to the tenth pin of the connector J2; one end of the resistor R28 is connected to the first pin of the switch K1, and the other end of the resistor R28 is respectively connected to the first pin of the wiring terminal K13 and one end of the resistor R27; the other end of the resistor R27 is grounded; the second pin of the wiring terminal K13 is connected to the sixteenth pin of the connector J2, and the third pin of the wiring terminal K13 is respectively connected to the second pin of the wiring terminal K14 and the first LED driving circuit (1111); the output end of the first LED driving circuit (1111) is connected to the connector J2; and the indicator light test module (12) is connected to the connector J2.

2. The multifunctional light board test board according to claim 1, characterized in that: The invention also comprises a photosensitivity test module (13), wherein the photosensitivity test module (13) comprises a dip switch K7, a terminal K6, a first voltage divider module (131), a second voltage divider module (132), a transistor Q4 and a first light emitting module (133); the dip switch K7 has a total of eight pins, the terminal K6 has a total of three pins, the second pin of the dip switch K7 is connected to the fifth pin of the connector J2, the fourth pin of the dip switch K7 is connected to the fourth pin of the connector J2, and the third pin of the dip switch K7 is connected to the fourth pin of the connector J2. The second pin of the wiring terminal K6 and one end of the first voltage divider module (131) are connected; the third pin of the wiring terminal K6 is grounded; the other end of the first voltage divider module (131) is connected to the base 2 of the transistor Q4; the emitter 1 of the transistor Q4 is grounded, and the collector 3 of the transistor Q4 is connected in series with the second voltage divider module (132) and then connected to the fourth pin of the dial switch K7; one end of the first light-emitting module (133) is respectively connected to the collector 3 of the transistor Q4 and the second voltage divider module (132), and the other end thereof is grounded.

3. The multifunctional light board test board according to claim 1, characterized in that: The indicator light test module (12) comprises a red indicator light module (121), a green indicator light module (122) and a blue indicator light module (123); the red indicator light module (121) comprises a dip switch K8, a switch K3 and a resistor R20; the dip switch K8 has eight pins in total, and the switch K3 has three pins in total; the fourth pin of the dip switch K8 is connected to the tenth pin of the connector J2; the second pin of the dip switch K8 is connected to the ninth pin of the connector J2; the third pin of the dip switch K8 is connected to the first pin of the connection terminal K3; the second pin of the switch K3 is connected in series with the resistor R20 and then connected to the eighth pin of the connector J2; the green indicator light module (122) and the blue indicator light module (123) are respectively connected to the connector J2.

4. The multifunctional light board test board according to claim 1, characterized in that: The device also comprises a microphone test module (14), wherein the microphone test module (14) comprises a third voltage divider module (141), a transistor Q3, a pull-up module (142), a transistor Q2, a second light-emitting module (143) and a resistor R23; one end of the third voltage divider module (141) is connected to the base 2 of the transistor Q3, and the other end thereof is connected to the tenth pin of the connector J2; the emitter 1 of the transistor Q3 is grounded, and the collector 3 of the transistor Q3 is respectively connected to the base 2 of the transistor Q2. and one end of the pull-up module (142); the other end of the pull-up module (142) is respectively connected to the third voltage divider module (141) and the tenth pin of the connector J2; the emitter 1 of the transistor Q2 is grounded, the collector 3 of the transistor Q2 is connected to one end of the second light-emitting module (143), and the other end of the second light-emitting module (143) is respectively connected to the pull-up module (142), the third voltage divider module (141) and the tenth pin of the connector J2.

5. The multifunctional light board test board according to claim 1, characterized in that: It also includes a PIR test module (15), the PIR test module (15) including a resistor R24 ​​and a light emitting diode D5, one end of the resistor R24 ​​is connected to the first pin of the connector J2, the other end of the resistor R24 ​​is connected to one end of the light emitting diode D5, and the other end of the light emitting diode D5 is grounded.

6. The multifunctional light board test board according to claim 1, characterized in that: The invention also comprises a voltage stabilizing circuit (16), wherein the voltage stabilizing circuit (16) comprises a first voltage stabilizing module (161), wherein the first voltage stabilizing module (161) comprises a voltage-reducing chip U3, a fourth voltage-dividing module (1611), a driving module (1612), a fifth voltage-dividing module (1613) and a first filtering module (1614); the voltage-reducing chip U1 has a total of six pins, the fifth pin of the voltage-reducing chip U3 is connected to the twentieth pin of the connector J2; one end of the fourth voltage-dividing module (1611) is connected to the The twentieth pin of the connector J2, and the other end thereof are respectively connected to the fifth pin and the fourth pin of the buck chip U3; the driving module (1612) is connected between the first pin and the sixth pin of the connector J2; one end of the fifth voltage divider module (1613) is connected to the sixth pin of the buck chip U3, and the other end thereof is connected to the third pin of the buck chip U3; the first filtering module (1614) is connected between the sixth pin of the buck chip U3 and the eighteenth pin of the connector J2.

7. The multifunctional light board test board according to claim 6, characterized in that: The voltage stabilizing circuit (16) further comprises a second step-down module (162), the second step-down module (162) comprising a second filter module (1621), a step-down chip Q1 and a third filter module (1622); the step-down chip Q1 has three pins in total, the third pin of the step-down chip Q1 is connected to the eighteenth pin of the connector J2, one end of the second filter module (1621) is connected to the eighteenth pin of the connector J2, and the other end thereof is connected to the third pin of the step-down chip Q1, one end of the third filter module (1622) is connected to the second pin of the step-down chip Q1, and the other end thereof is connected to the tenth pin of the connector J2; the first pin of the step-down chip Q1 is grounded.

8. The multifunctional light board test board according to claim 1, characterized in that: It also includes an extended test module (17) and a connector J4; the extended test module (17) includes a first test module (171) and a second test module (172); the first test module (171) includes a connection terminal K16 and a switch K15, and the connection terminal K16 and the switch K15 each have three pins; the connector J4 has a total of six pins; the first pin of the connection terminal K16 is connected to the first pin of the connector J4, the second pin of the connection terminal K16 is connected to the first pin of the switch K15, and the third pin of the connection terminal K16 is grounded; the second pin of the switch K15 is connected to the fifth pin of the connector J4.

9. The multifunctional light board test board according to claim 1, characterized in that: The first LED driving circuit (1111) comprises a driving chip U2, a first filtering circuit (11111), a voltage dividing circuit (11112), a sampling resistor R2, a freewheeling diode D1 and a second filtering circuit (11113); the driving chip U2 has a VIN terminal, a CSN terminal, a SW terminal, a DIM terminal and a GND terminal; the first filtering circuit (11111) is connected between the VIN terminal of the driving chip U2 and the twentieth pin of the connector J2; one end of the voltage dividing circuit (11112) is respectively connected to the second pin of the wiring terminal K14 and the third pin of the wiring terminal K13, and the other ... The first end is connected to the DIM end of the driving chip U2, the CSN end of the driving chip U2 is connected to the fourteenth pin of the connector J2, the sampling resistor R2 is connected between the VIN end and the CSN end of the driving chip U2, the cathode of the freewheeling diode D1 is connected to the VIN end of the driving chip U1, the anode is connected to the SW end of the driving chip U2, and the cathode is connected to the VIN end of the driving chip U1; one end of the second filtering circuit (11113) is respectively connected to the CSN end and the SW end of the driving chip U2; the other end is respectively connected to the thirteenth pin and the fourteenth pin of the connector J2.

10. The multifunctional light board test board according to claim 1, characterized in that: It also includes a CY05 test module (18), which includes a connector J5 and a buzzer FMQ; the connector J5 has five pins, the first pin of the connector J5 is connected to the first pin of the buzzer FMQ, the fourth pin of the connector J5 and the fifth pin of the connector J5 are grounded, and the second pin of the buzzer FMQ is grounded.

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