On-off detection jig for earphone circuit
A technology of on-off detection and circuit, which is applied in the direction of measuring electricity, measuring devices, measuring electrical variables, etc., can solve the problems of low efficiency and high error rate, and achieve the effects of improving detection efficiency, reducing enterprise costs, and saving manpower
Inactive Publication Date: 2013-04-17
美律电子(惠州)有限公司
View PDF6 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The conventional detection method is to manually lap the two terminals of the plug of the finished earphone to test the on-off through the specific gear of the multimeter, and record it. The efficiency is very low and the error rate is high.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0009] For the convenience of those skilled in the art to understand the technical content of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0010] The headphone line continuity detection fixture shown in this embodiment includes a test stand and a test board mounted on the test stand. The test board is provided with a power input terminal and a headphone jack, and the power input terminal is connected to a DC stabilized power supply.
[0011] Such as figure 1 As shown, the positive pole of the power input terminal is connected to the power terminal in the earphone jack, the ground wire terminal in the earphone jack is connected to the negative pole of the power input terminal through the first indicator light LED1 and the current limiting resistor R1, and the left channel earphone terminal in the earphone jack is The negative pole of the power input terminal is connected t...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to an on-off detection jig for an earphone circuit. The jig comprises a test support and a test board, wherein the test board is arranged on the test support. The on-off detection jig for the earphone circuit is characterized in that the test board is provided with a power supply input terminal and an earphone jack, a positive electrode in the power supply input terminal is connected with a power supply terminal in the earphone jack, a ground wire terminal in the earphone jack is connected with a negative electrode of the power supply input terminal through a first indicator lamp and a left channel earphone terminal and a right channel earphone terminal in the earphone jack are connected with the negative electrode of the power supply terminal through a second indicator lamp and a third indicator lamp; and the test board is provided with the power input terminal connected with a direct current (DC) stabilized power supply. The on-off detection jig for the earphone circuit provided by the invention is utilized to detect the finished product earphone circuit, thereby improving detection efficiency, saving labor force and reducing enterprise cost.
Description
technical field [0001] The invention relates to a jig for on-off detection of earphone lines. Background technique [0002] Strict quality inspection must be carried out before the earphone leaves the factory, such as the symmetry of the left and right audio, frequency response, etc. The continuity of the internal circuit of the earphone is a necessary and basic inspection. The conventional detection method is to use the specific gear of the multimeter to manually lap the two terminals of the plug of the finished earphone to test the continuity and record, the efficiency is very low, and the error rate is high. Contents of the invention [0003] The object of the present invention is to provide a jig for on-off detection of earphone lines. [0004] The technical solution of the present invention is: an on-off detection fixture for earphone lines, comprising a test bracket and a test board arranged on the test bracket, characterized in that, the test board is provided with...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/02
Inventor 魏文杰
Owner 美律电子(惠州)有限公司