the params of sys aud mod req msgs from TV

sys aud mode req msg sent from TV to AMP has a param of PA of src dev,

while sys aud mode req msg sent from TV to AMP hasn't any param:

aud sys mod request from TV:

sys aud mod req(off) from TV:

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原文地址：https://www.cnblogs.com/aspirs/p/9708831.html