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bei jing 2132ma xing cai dian xiu li yi li
Author(s): 
Pages: 30
Year: Issue:  3
Journal: Family Electronics

Keyword:  音量控制功率放大放电路松下公司消噪静噪电平伴音电路高电平噪音饱和导通;
Abstract: <正> 一台北京牌2132MA型彩电图、声均正常,只是在空频道时有很大的噪音,即消噪功能失效。该机的伴音低放电路采用了日本松下公司生产的AN5265,它可以独立完成伴音低放的全部功能,内部设有静噪、电子音量控制和功率放大中点电压的自动跟踪等电路,增益控制范围可达到95dB。
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