Non-principle test device for general digital plug-ins and test method thereof

Abstract

The invention relates to a non-principle test device for general digital plug-ins, comprising a test control computer, a function test branch computer and a boundary scanning test branch computer which are arranged in an integrated test cabinet. The power input ends of the test control computer, the function test branch computer and the boundary scanning test branch computer are connected with a 220 mains supply through power lines. The test control computer is connected with the boundary scanning test branch computer through a USB cable, and the test control computer is connected with the function test branch computer through a network cable. The test control computer and the boundary scanning test branch computer communicate in a two-way mode, and the test control computer and the function test branch computer communicate in a two-way mode. The invention further discloses a test method of the non-principle test device for general digital plug-ins. The fault detection rate and fault isolation rate of digital plug-in boards are improved, the technical requirement for maintenance technicians is lowered, and the efficiency of digital plug-in test and repair is improved. The non-principle test device can assist in testing and debugging digital plug-ins in radar products, and especially, a testing and debugging platform is provided for separate plug-ins unable to build a whole system.

Description

technical field [0001] The invention relates to the technical field of automatic testing of digital circuit boards, in particular to a non-principle testing device for a universal digital plug-in and a testing method thereof. Background technique [0002] In the industrial field, while electronic equipment becomes more automated and intelligent, the design becomes more complex. Due to the extensive use of multi-layer high-density PCB boards and BGA packaged devices, it becomes extremely difficult to test circuit boards, especially Embodied on the digital plug-in of the radar system. However, in order to meet the increasingly stringent quality requirements of users and the needs of on-site use of equipment, the construction of testing capabilities has to be strengthened. At present, for the test of the digital plug-in of the radar system, it is necessary to build a complete set of test system, and the function of the digital plug-in to be tested is determined indirectly by t...

AI Technical Summary

Problems solved by technology

However, in order to meet the increasingly stringent quality requirements of users and the needs of on-site use of equipment, the construction of testing capabilities has to be strengthened

At present, for the test of the digital plug-in of the radar system, it is necessary to build a complete set of test system, and the function of the digital plug-in to be tested is determined indirectly by the overall working principle of the system, and there is a lack of fault location for the components on the digital plug-in. And the location of welding faults such as short circuit and open circuit

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