本刊94年第4、5期介绍了“三洋”CLT35A无绳子母电话机原理,本文介绍该机常见故障检修。 副机常见故障检修 1.无铃声 用螺丝刀的金属部分接触一下Q_(62)集电极,如果受话器中有信号输出,说明低放输出电路及受话器是好的。如没有信号输出,应测一下Q_(64)的发射极电位,正常时应等于电源电压的一半。如果该点电压正常,则可能是C_(68)开路或SP_(101)损坏造成 This issue in 1994 No. 4,5 introduced the “Sanyo” CLT35A cordless phone mother principle, this article describes the machine troubleshooting. Auxiliary common troubleshooting 1. No ring with a screwdriver metal part of the contact Q_ (62) collector, if the receiver has a signal output, indicating that the low-output circuit and the receiver is good. If there is no signal output should be measured Q_ (64) of the emitter potential, normal should be equal to half the supply voltage. If the voltage at this point is normal, it may be C_ (68) open or SP_ (101) damage caused