论文部分内容阅读
现代仪器仪表、电工设备、家用电器、计算机及外设等的电子线路中,普遍使用集成电路。通常采用锡焊方法,将集成电路焊接在双面印制线路板上,维修时,拆换更新集成电路带来困难。本文介绍拆换的方法。 1.拆换前准备可自制拆换支架及专用烙铁头,并搞清集成电路周围接线位置,画一张简单接线位置草图。 2.拆下集成电路方法在完全确定集成电路已损坏时,可采取破坏集成电路拆除法。对集成电路较贵,一时又难辨别好坏
Modern instrumentation, electrical equipment, household appliances, computers and peripherals and other electronic circuits, the widespread use of integrated circuits. Usually soldering method, the integrated circuit soldered on the double-sided printed circuit board, maintenance, replacement of integrated circuits to replace the difficulties. This article describes the method of replacement. 1. Prepared before replacement can be made of removable bracket and special iron head, and to find out the integrated circuit around the wiring location, draw a simple sketch of the wiring location. 2. Disassemble the integrated circuit method When it is fully determined that the integrated circuit is damaged, the disassembly of the integrated circuit may be taken. The more expensive integrated circuits, sometimes difficult to distinguish between good and bad