191问答库 > 请教下关于雅马哈功放维修的问题，能正常开机但输出没声音，初步判断是这个二极管？

请教下关于雅马哈功放维修的问题，能正常开机但输出没声音，初步判断是这个二极管？

坏了，但网上找不到这个元件，想请教下各位怎么办？
2025-03-15 14:01:03
推荐回答（1个）
回答1：

你怎判断此二板管已损坏，包括短路开路？你有否逐级从末到前级送信号判断故障区域及区域内二极管整流、检波、稳压何功能？例如二极管功能：短路对发生在稳压电路会影响无声，开路对整流检波电路会影响无声……

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