Study On The Performance Test And Improvement Of Recorder

As a digital product commonly used in the family, recorders are a kind of equipments which is used to record a variety of television shows, DV video and other media and then play. The recorder is the main product of Panasonic Corporation, its performance is crucial to the development of the company.In this paper, based on the industrial standard of Panasonic Corporation, more comprehensive tests were carried on the recorder products developed in the company, including electrical performance testing, EMC performance testing, electrical safety performance testing, and environmental safety reliability testing. In addition, the problems found during the tests were respectively verified and analyzed and improved and re-tested. the three research aspects following are studied in this work:Firstly, through item-by-item validation of all change in the product testing and troubleshooting, as well as reconfirmation of the previous testing results, a bold exploration about the testing method was made. This paper managed to reproduce the display garbled aging phenomenon when the recorders were used at high temperatures and find the cause of the problem.Secondly, the analysis of the circuit structure was made to find drawbacks of the product in the Electrostatic interference. By increasing the signal line ferrite bead and the signal line to ground capacitance, the ability of anti-interference in the static test of products was improved.Thirdly, the safety and stability of products were improved by means of selecting high efficiency conversion chips and correcting circuit design, which reduced the energy loss in the original circuit and the chip heat,In this paper, through a series of tests, weaknesses in the design of the company’s products were discovered. Methods including comparison and analysis, chip selection, circuit optimization were used to improve the problems found during the testing. The results showed that this study improves the safety, stability of the company’s products to a certain extent and accumulates experiences on the development, testing and improvement of follow-up products.