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故障现象:一台凤鸣牌FTL—8134B型台式收录机,左声道放音声小,右声道也低于正常音量,查音量电位器正常。分析与排除:首先将磁带/收音两种功能的放音效果对比试听,结果音轻不变,说明磁头及放音部分的前置电路、收音部分的前置电路均正常。怀疑电源电路有故障,查电源电路输出
Symptoms: A Fengming FTL-8134B desktop radio, the left channel sound is small, right channel is also lower than the normal volume, check the volume potentiometer normal. Analysis and Elimination: First of all tape / radio two kinds of playback effects of audio preview, the results of light unchanged, indicating head and playback part of the front-end circuit, radio part of the front-end circuit are normal. Suspected power circuit fault, check the power circuit output