Handheld led traffic digital countdown display unit function online test device
A display unit, online testing technology, applied to static indicators, instruments, etc., can solve the problems of not meeting the online testing requirements, single method, time-consuming operation, etc., to shorten the online testing time, improve efficiency, and prevent the influence of static electricity Effect
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[0026] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0027] A hand-held LED traffic digital countdown display unit function online testing device, its structure is as follows Figures 1 to 4 shown. It includes a strip-shaped housing 1, and the upper end surface of the housing is provided with a card slot 2 that matches the shape of the LED traffic digital countdown display unit to be detected. One side of the card slot is connected with a cover that matches the housing through a hinge. Board 7, the cover plate is provided with the contact hole 3 corresponding to the position of the point to be detected of the LED traffic digital countdown display unit to be detected.
[0028] The card slot is provided with three elastic contact electrodes 9 which correspond to the positions of the points to be detected of the LED traffic digital countdown display unit to be detected and whose top ends ...
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Abstract
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