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故障现象:水平一条亮线,伴音正常。故障分析:该机用TDA3651AQ集成块作场输出。出现水平一条亮线故障,检查是集成块TDA3651AQ损坏。各脚正常工作电压及出现故障后的电压对比见下表:
Symptoms: a bright line, sound normal. Failure Analysis: The machine with TDA3651AQ manifold for field output. A horizontal line appears fault, check the manifold is damaged TDA3651AQ. The normal working voltage of each leg and the comparison of the voltage after the failure appears in the following table: