论文部分内容阅读
检修电子仪器的方法众多,要想在一篇短文中作全面介绍是不可能的,本文仅根据笔者经验和体会介绍一些常用的检修法,供初学者参考。一、检修原则检查时应遵循以下六个原则: 1.“先调查后动手”—一向使用者了解情况,然后结合仪器具体情况进行检修。 2.“先外后内”——先从机器外部附件检查或机器外部的开关旋钮位置等检查,然后打开机器内部检修。 3.“先电源后机器”——先检查电源部分是否正常,然后再检查仪器内部各级电子电路。 4.“先静后动”——先不通电检查,然后通电 5.“先常见后特殊”——先考虑常见故障,再考
There are many ways to overhaul electronic devices. It is impossible to fully describe them in an essay. This article is based on the author’s experience and experience to introduce some commonly used maintenance methods for reference by beginners. First, maintenance principles The following six principles should be observed when inspecting: 1. “After investigating first” - once the user understands the situation, and then combined with the specific conditions of the instrument for maintenance. 2. “First outside and then inside” - first check from the outside attachment of the machine or the position of the switch knob outside the machine, then open the inside of the machine. 3. “First power after the machine” - first check the power supply is normal, and then check the internal electronic circuits of the instrument. 4. “After the first static move” - first no electricity inspection, and then power 5. “common after the special” - first consider common faults, and then test