| 针对三洋LCD32CA828、LC42CA828等液晶电视型机，热机后伴音中有噪音。故障原因:主芯片RTD2674U内部的Audio-DAC模块受供电电源干扰，导致AudioDAC模块无法正常工作。怎么修理:将RTD2674U的215脚外接的贴片电感FB407改为10Ω的贴片电阻。 |
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