CN114076905A - EDP and USB signal test tool board - Google Patents
EDP and USB signal test tool board Download PDFInfo
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- CN114076905A CN114076905A CN202010846876.3A CN202010846876A CN114076905A CN 114076905 A CN114076905 A CN 114076905A CN 202010846876 A CN202010846876 A CN 202010846876A CN 114076905 A CN114076905 A CN 114076905A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/54—Testing for continuity
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Abstract
The invention relates to the technical field of electronics, in particular to an EDP (electronic data processing) and USB (universal serial bus) signal test jig board. The EDP and USB signal test fixture plate comprises a printed circuit board, an EDP signal path arranged on the printed circuit board and a USB signal path arranged on the printed circuit board. The EDP and USB signal test fixture plate can directly connect EDP signals on a mainboard of electronic equipment to a liquid crystal display panel through the fixture plate, and the fixture plate is also provided with a USB signal channel, so that the USB function of the mainboard can be tested through testing the USB signal channel, and therefore, the EDP and USB signals can be simply and quickly detected, and the requirement of a client on an extension function can be met.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of electronics, in particular to an EDP (electronic data processing) and USB (universal serial bus) signal test jig board.
[ background of the invention ]
With the continuous development of modern technologies, notebook computers and other intelligent electronic devices are continuously updated, and the requirements of users on the electronic devices are higher and higher.
The EDP is a communication interface mode of a computer display screen, which uses a simpler connector and fewer pins to transmit high-resolution signals and can realize simultaneous transmission of multiple data. However, the EDP signal line and the USB signal line of the conventional notebook computer are generally disposed on the main board of the notebook computer, and the test requires the entire main board to detect whether the EDP signal line and the USB signal line are good or not. Therefore, the method can not realize simple and quick detection of the EDP signal and the USB signal, and can not meet the requirement when the EDP signal line and the USB signal line need function extension, for example, the EDP signal needs to be independently extended in medical equipment.
Therefore, it is necessary to design an EDP and USB signal testing jig board to solve the above problems.
[ summary of the invention ]
The invention aims to provide an EDP and USB signal test fixture plate which can simply and quickly detect EDP and USB signals and can meet the requirement of a client on an extension function.
In order to achieve the purpose, the invention adopts the following technical scheme:
an EDP and USB signal test fixture plate comprises a printed circuit board, an EDP signal path arranged on the printed circuit board and a USB signal path arranged on the printed circuit board; wherein the content of the first and second substances,
the EDP signal path is provided with an EDP input interface and an EDP output interface, and the EDP input interface is in signal conduction with an EDP signal on the electronic equipment mainboard;
the USB signal path is provided with a USB input interface and a USB output interface, and the USB input interface is in signal conduction with the USB interface on the electronic equipment mainboard.
Further, the electronic device is a notebook computer.
Further, the EDP output interface is communicated with the liquid crystal display panel.
Further, the USB output interface is communicated with a USB device.
Furthermore, the EDP input interface and the EDP output interface respectively have 16 pins, wherein the 1 st pin and the 2 nd pin, the 4 th pin and the 5 th pin, the 7 th pin and the 8 th pin, and the 10 th pin and the 11 th pin form four main channels, the 13 th pin and the 14 th pin form an auxiliary channel, the 3 rd, the 6 th, the 9 th pin and the 12 th pin are unidirectional channels, and the 15 th pin and the 16 th pin are ground pins.
Further, the 3 rd, 6 th, 9 th pins and the 12 th pin are grounded.
Compared with the prior art, the EDP and USB signal test fixture plate is communicated with the EDP signal which is separated from the electronic equipment main board independently through the fixture plate, so that the EDP signal on the electronic equipment main board can be directly connected to the liquid crystal display panel through the fixture plate, and whether the EDP signal of the main board is good or not is tested; and still set up USB signal path on the tool board, thereby through the USB function of test USB signal path test mainboard, can detect EDP and USB signal simply, swiftly from this, can satisfy customer's extension functional requirement moreover.
[ description of the drawings ]
FIG. 1 is a block diagram of an EDP and USB signal testing jig board according to the present invention.
FIG. 2 is a block diagram of the EDP and USB signal testing jig of the present invention.
FIG. 3 is a schematic diagram of the EDP input interface and the EDP output interface of the EDP and USB signal testing jig board according to the present invention.
[ detailed description ] embodiments
For a further understanding of the objects, technical effects and technical means of the present invention, reference will now be made in detail to the following description taken in conjunction with the accompanying drawings.
Referring to fig. 1 and 2, the present invention provides an EDP and USB signal testing jig board, which includes a printed circuit board, an EDP signal path 100 disposed on the printed circuit board, and a USB signal path 200 disposed on the printed circuit board; wherein the content of the first and second substances,
the EDP signal path 100 has an EDP input interface 110 and an EDP output interface 120, the EDP input interface 120 is in signal conduction with the EDP signal 11 on the electronic device motherboard 10, and the EDP signal 11 on the electronic device motherboard 10 is separately separated from the motherboard 10;
the USB signal path 200 has a USB input interface 210 and a USB output interface 220, the USB input interface 210 is in signal communication with the USB interface 20 on the electronic device motherboard 10, for example, the USB input interface can be connected through a flexible circuit board, and the USB interface 20 is a USB2.0 interface.
The electronic equipment is a notebook computer and can also be other electronic equipment. The EDP output interface 120 is communicated with the liquid crystal display panel 300, and can access the EDP signal to the liquid crystal display panel 300, and the liquid crystal display panel 300 can test whether the EDP signal is normal or not, and can be used as an extension of electronic equipment.
The USB output interface 220 is in communication with the USB device 400, for example, the USB device 400 is a USB disk.
Referring to fig. 3, since the EDP input interface 210 and the EDP output interface 220 are the same, only the schematic diagram of the EDP input interface 210 is shown in fig. 3. EDP input interface 210 and EDP output interface 220 have 16 pins 211 respectively, wherein pin 1 and 2 nd pin, pin 4 and 5 th pin, pin 7 and 8 th pin, pin 10 and 11 th pin constitute four main channels for transmitting each type video data and audio data, pin 13 and 14 th pin constitute an auxiliary channel for transmitting the data of low bandwidth demand, pin 3, 6, 9 th pin and 12 th pin are one-way channel, be used for detecting E layer equipment and lower floor's equipment and connect, pin 15 and 16 th pin are the ground connection of ground connection pin. Further, the 3 rd, 6 th, 9 th pins and the 12 th pin are grounded.
Compared with the prior art, the EDP and USB signal test fixture plate is communicated with the EDP signal 11 which is separated from the electronic equipment main board 10 independently through the fixture plate, so that the EDP signal 11 on the electronic equipment main board 10 can be directly connected to the liquid crystal display panel 300 through the fixture plate, and whether the EDP signal 11 of the main board 10 is good or not is tested; and still set up USB signal 200 route on the tool board, thereby test mainboard 10's USB function through testing USB signal route 200, can detect EDP and USB signal simply, swiftly from this, can satisfy customer's extension functional requirement moreover.
The technical principles of the present invention have been described above in connection with specific embodiments, which are intended to explain the principles of the present invention and should not be construed as limiting the scope of the present invention in any way. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive effort, which would fall within the scope of the present invention.
Claims (6)
1. An EDP and USB signal test fixture plate is characterized by comprising a printed circuit board, an EDP signal path arranged on the printed circuit board and a USB signal path arranged on the printed circuit board; wherein the content of the first and second substances,
the EDP signal path is provided with an EDP input interface and an EDP output interface, and the EDP input interface is in signal conduction with an EDP signal on the electronic equipment mainboard;
the USB signal path is provided with a USB input interface and a USB output interface, and the USB input interface is in signal conduction with the USB interface on the electronic equipment mainboard.
2. The EDP and USB signal testing jig board according to claim 1, wherein the electronic device is a notebook computer.
3. The EDP and USB signal testing jig board according to claim 1, wherein the EDP output interface is in communication with a liquid crystal display panel.
4. The EDP and USB signal testing fixture board of claim 1, wherein the USB signal output interface communicates with a USB device.
5. The EDP and USB signal testing jig board according to claim 1, wherein the EDP input interface and the EDP output interface have 16 pins respectively, wherein the 1 st pin and the 2 nd pin, the 4 th pin and the 5 th pin, the 7 th pin and the 8 th pin, the 10 th pin and the 11 th pin form four main channels, the 13 th pin and the 14 th pin form an auxiliary channel, the 3 rd, 6 th, 9 th and 12 th pins are unidirectional channels, and the 15 th pin and the 16 th pin are ground pins.
6. The EDP and USB signal testing tool board of claim 5, wherein the pins 3, 6, 9 and 12 are grounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010846876.3A CN114076905A (en) | 2020-08-21 | 2020-08-21 | EDP and USB signal test tool board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010846876.3A CN114076905A (en) | 2020-08-21 | 2020-08-21 | EDP and USB signal test tool board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114076905A true CN114076905A (en) | 2022-02-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN202010846876.3A Pending CN114076905A (en) | 2020-08-21 | 2020-08-21 | EDP and USB signal test tool board |
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