4T36场上线性不良 采用TDA8177的4T36机芯易出现场上线性不良,查TDA8177的1,7脚为2.2V,5脚为16V,应为7脚外围 电路,R322变值为常见故障,根据变值的程度不同,其线性的程度也不同 |
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