大家知道录像机电路板上不仅元件多,而且印刷电路(铜箔线)既细又密,其走向也复杂多变。再加上电路板上的许许多多的油印符号也添“乱子”,使印刷电路常被这些油印符号所覆盖。通常被人们认为检查印刷电路为简单工作,而实际却是费眼睛、劳神经、效率低的非轻松活儿。笔者在实践中摸索出一种方法,取名“探测法”。此 We all know that the video recorder circuit board is not only more components, and the printed circuit (copper foil wire) both thin and dense, its trend is also complex and changeable. In addition, many of the symbols on the circuit board add “confusion”, making the printed circuit often covered by these symbols. It is often thought of as a simple job of checking a printed circuit board, but it is actually a non-relaxing job that costs a lot of eyes, nerves and inefficiencies. The author worked out a way in practice, named “exploration method.” this