I received my replacement TA2022 chip, installed it, and am having *exactly* the same problem as before.
The amp will not unmute properly. Sometimes it does, but the HMUTE flutters between 0-5V (causing the relay and LED to do the same).
Has anyone else seen this? It can't be a problem with the chip as I replaced it... is it likely to be a voltage sense forcing the amp to mute?
I reflowed all the joints too.
Jeez, this is my third chip, and second board with no success.