Method for checking static convergence retardation of deflecting coil adjusting machine

A technology of deflection coils and adjustment machines, which is applied in the manufacture of magnetic deflection devices, factory adjustment of electric tubes/lamps, and measurement/testing during the manufacturing process. problems, to achieve the effect of improving stability and accuracy

Inactive Publication Date: 2007-10-31
SHANGHAI NOVEL COLOR PICTURE TUBE
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

The deviation of these tubes during use caused the static convergence of the YAM machine and the corresponding user movement to be inconsistent.
(2) Since different user cores have different static convergence standard tubes, and there are many product

Method used

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  • Method for checking static convergence retardation of deflecting coil adjusting machine
  • Method for checking static convergence retardation of deflecting coil adjusting machine
  • Method for checking static convergence retardation of deflecting coil adjusting machine

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Embodiment Construction

[0027] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0028] Please refer to FIG. 2 , which shows the flow of the method for correcting the YAM static convergence delay in the present invention. The process of the present invention will be described in detail below in conjunction with FIG. 2 .

[0029] S21: matching a picture tube with a user core, adjusting the static convergence of the picture tube on the user core to zero, and then using the picture tube as a static convergence standard tube for subsequent steps. Because the static convergence of different series of user movements is different, there are different static convergence standard tubes corresponding to each series of user movements. The method of static convergence adjustment is a prior art and has been explained in the background art section, and will not be described again here.

[0030] S22: Use the static convergence standard tube in S...

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Abstract

The invention discloses an inspection method for static convergence delay of YAM machine, and it improves the stability and the accuracy of YAM machine, and reduces the production cost. The technical scheme is: (1) kinescope matches with user caliber, and the kinescope static convergence is adjusted as zero, that is to say the standard tube of static convergence of user caliber; (2) proofreads the YAM machine using the static convergence standard tube in step (1), the static convergence of standard tube on YAM machine can be adjusted as zero by adjusting the delay button on YAM machine; (3) detects the phase difference of R,G,B signal on YAM machine in step(2), and acts as the delay criterion of YAM machine of user caliber in step (1); (4) all YAM machines are connected with a detecting device for signal, and the phase difference of R,G,B signal on YAM machine is adjusted as the delay criterion in step (3) by adjusting the delay button. The invention can be applied in the proofreading field of static convergence of relative devices in production of kinescope.

Description

technical field [0001] The invention relates to a method in the production process of picture tubes, in particular to a static convergence proofreading method for related equipment in the production of picture tubes. Background technique [0002] In the production process of picture tubes, especially in the assembly process of picture tubes and user cores, the problem of unsatisfactory static convergence will be encountered. The so-called static convergence means that the three electron beams emitted by the red (R), green (G) and blue (B) electron guns meet at the central point of the picture tube screen without being affected by the deflection magnetic field. In actual production, due to the influence of the picture tube itself and / or the user's movement, there will often be unsatisfactory static convergence, that is, the electron beams cannot meet at the center of the screen. Therefore, it is necessary to adjust the static convergence during the assembly process of the pi...

Claims

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Application Information

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IPC IPC(8): H01J9/44H01J9/42H01J9/236H01J9/00
Inventor 毛民杰
Owner SHANGHAI NOVEL COLOR PICTURE TUBE
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