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Keyboard tester

A technology of testing device and keyboard, applied in the direction of measuring device, measuring electricity, measuring electrical variables, etc., can solve the problems of wasting time, inconvenient testing, etc., and achieve the effects of improving work efficiency, short testing time, and simple testing

Inactive Publication Date: 2017-01-04
SHENXUN COMP KUNSHAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] Therefore, the object of the present invention is to provide a kind of keyboard testing device, and this keyboard testing device can overcome the defect that prior art test is inconvenient and time-wasting

Method used

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Embodiment Construction

[0023] see figure 1 As shown, it depicts a schematic circuit diagram of a keyboard testing device of the present invention in a preferred embodiment.

[0024] In a preferred embodiment, the keyboard testing device of the present invention is used to test the keyboard of a notebook computer, the keyboard has a keyboard cable 100, and the keyboard cable 100 is electrically connected to the keys respectively, and the The keyboard cable 100 has 30 terminals (the first terminal to the 30th terminal), and the keyboard testing device includes:

[0025] A power supply 200, which has a positive pole and a negative pole, and the negative pole is grounded;

[0026] A resistor 300, one end of which is connected to the positive pole of the power supply 200;

[0027] For a plurality of first LEDs 400, the anodes of the first LEDs 400 are connected in parallel to the other end of the resistor 300, and the cathodes of the first LEDs 400 are respectively connected to the terminals of the key...

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Abstract

A keyboard tester is used to test a keyboard of a notebook computer. The keyboard includes a flat cable of the keyboard, and the flat cable of the keyboard includes multiple terminals. The keyboard tester comprises a power supply, a resistor, first LEDs and second LEDs; the power supply includes an anode and a cathode, and the cathode is grounded; one end of the resistor is connected to the anode of the power supply; anodes of the first LEDs are connected in parallel to the other end of the resistor, and cathodes of the first LEDs are connected to the terminals of the flat cable of the keyboard in one to one correspondence; and anodes of the second LEDs are connected to the terminals of the flat cable of the keyboard in one to one correspondence, and the cathodes of the second LEDs are connected in parallel to the cathode of the power supply. The keyboard tester is simple in test, problem of certain button can be detected visually, test time is short with the practical test time being 30s, test time is saved, and the working efficiency is improved.

Description

[0001] 【Technical field】 [0002] The invention relates to a keyboard testing device, in particular to a keyboard testing device for a notebook computer. [0003] 【Background technique】 [0004] With the improvement of living standards, people have higher and higher requirements for the quality of notebook computers. In order to ensure the quality of the notebook computer, the keys of the notebook computer will be tested before the notebook computer is shipped to ensure that the keys of the notebook computer maintain good electrical performance during use. [0005] In the prior art, when testing the keys of a notebook computer, after the notebook computer is assembled, enter the DOS in the boot state to perform an analog test of the programmed keys, which is not only inconvenient to test, but also wastes time. It takes 3 minutes to complete the test. [0006] In view of this, it is necessary to develop a keyboard testing device to solve the above-mentioned defects of inconveni...

Claims

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Application Information

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IPC IPC(8): G01R31/02
Inventor 贺武
Owner SHENXUN COMP KUNSHAN
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