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Testing tool for image generator

A graphic generator and test fixture technology, which is applied in image communication, television, electrical components, etc., can solve the problems of high cost of standard resistance boxes, no voltage stabilization measures for standard resistance boxes, and equipment damage, etc., so as to improve work efficiency and Stability, convenient daily and production line testing, and the effect of reducing testing costs

Inactive Publication Date: 2008-02-20
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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AI Technical Summary

Problems solved by technology

[0005] However, in the above test verification process, due to the high cost of the standard resistance box, the cost for daily testing and large-scale production line testing will increase significantly; Large static electricity will cause damage to the equipment; in addition, for each output primary color signal terminal, it is necessary to connect the interface line separately for testing, which also affects the efficiency of the overall test

Method used

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  • Testing tool for image generator
  • Testing tool for image generator

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Embodiment Construction

[0012] Please refer to Fig. 1 and Fig. 2, the preferred embodiment of pattern generator test fixture of the present invention comprises a VGA interface 12, a BNC interface 13, a substrate 14, a first analog output module 10, a second analog output module 20 and a third analog output module 30 . The VGA interface 12 , the BNC interface 13 , the first analog output module 10 , the second analog output module 20 and the third analog output module 30 are fixed on the substrate 14 .

[0013] The VGA interface 12 is a D-type interface with 15 pins in total, divided into three rows, five in each row. The above pins include the red signal output pins R(+) and R(-), the green signal output pins G(+) and G(-), and the blue signal output pins B(+) and B(-) specified by VESA. ) and other related control signal pins.

[0014] Described BNC interface 13 comprises three signal output ends 13a~13c, and described signal output end 13a~13c is red signal output end, green signal output end and...

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Abstract

The utility model relates to a test fixture of pattern generator, comprising a VGA interface, a signal interface of separate type display, a first analog output module, a second analog output module and a third analog output module. Both the VGA interface and the signal interface of the separate type display comprise two red signal output ends, two green signal output ends and two blue signal output ends; the red signal output ends, the green signal output ends and the blue signal output ends of the VGA interface are respectively electrically connected with the first, the second and the third analog output modules; the red signal output ends, the green signal output ends and the blue signal output ends of the separate type display signal interface are respectively electrically connected with the first, the second and the third analog output modules. With the test fixture, the utility model has the advantages that accurate and high efficient performance test on the output end of the pattern generator can be made and the testing efficiency can be enhanced.

Description

technical field [0001] The invention relates to a test fixture, in particular to a test fixture for assisting in verifying the performance of the output end of a pattern generator. Background technique [0002] Pattern generator is the key equipment of large-scale integrated circuit, which can be used to generate various pattern signals. When the video graphics array interface (VGA) or separate display signal interface (BNC) of the graphics generator is connected to the display (load), the output signal amplitude will affect the color temperature and brightness of the display, which is closely related to human vision health, so it must be related Output performance test to ensure that the output signal of the pattern generator is within the range specified by the specification. [0003] The VGA interface can connect the graphics generator with the display, and can support displaying 16 colors or 256 gray scales at a higher resolution of 640X480, and can display 256 colors a...

Claims

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Application Information

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IPC IPC(8): H04N17/02H04N17/00
Inventor 王剑黄仁波甘小林何友光
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD
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