Chosen Solution
I have a Sony TA-AX390 and I can’t seem to get it to show any LED lights on the Amplifier when I turn it on, however it seems to power up all the other components just fine so I dont believe its a power issue. I also am not able to get any sound out of the Amplifier to my speaker, but Im not sure if thats because the front panel isnt working and therefore I cant switch to the record player, tape player, tuner, or CD player for sound to start playing, or if thats a separate issue on its own.
Hi there, You could open it up and reconnect the cable for the front panel to see if that helps, it’s passivity that just the panel is faulty, if it has a remote, you could try to set it to cd and try to play a cd or radio and increase volume to see if you get any output?
It sounds to me like you have a shorted output transistor or output module that is either shutting down the power supply or blown an internal fuse. You state that all the other components are powered up, what other components are there? Anything external to the receiver would not be affected. One more thing, check your speaker wiring to make sure you don’t have a short. That could shut down the sound.
