HA22(Ⅱ)P/T型电话机通话电路的工作原理及故障分析

The Working Principles and Break-down Analysis of HA22 (II) P/T Type Telephone Communicative Circuit

在介绍TEA106X系列电话机专用通话集成电路的同时,以HA22(Ⅱ)P/T型电话机通话电路为例,简述了该系列中TEA1062集成块组成的通话电路工作原理,并对常见的七个故障进行了分析.

In the course of the introduction to the TEA106Xseries special telephone communicative integration circuit,HA22(II)P/T type telephone communicative circuit is taken as an example.The present paper gives a brief description of the working principles of the communicative circuit made up of the TEA 1062 integration circuit,and also offers an analysis of the seven common breakdowns.