Question Logitech system Z906 issue

[doominator]

The output center speaker port on the back of z906 subwofer not working.....I swap the speakers and there are ok all 5 of them..so im worried that my output port is fried or something like that....what ca i do to be sure?

https://imgur.com/a/F4lZlUG

View: https://imgur.com/a/F4lZlUG

 

[MDTOP]

Doominator,
Does the center channel not work with all inputs?
Open sub up and look for damaged capacitor, loose wire, smoked crossover board.

 

[doominator]

i never open the case of the sub....so this is the next and only step no? is not something software related
?

 

[MDTOP]

Cross-overs are active / passive or both. They use capacitors and inductors to direct frequencies to certain speakers (passive) They can also use circuits to amplify and direct the frequencies. (active)
I asked if with all inputs (system has several ) the mid channel is always missing.
To make sure as well make sure you play dvd with surround. My current windows 10 ver 1909 only plays stereo unless i play media with surround. are all 4 right and left speakers playing ok?

 

[doominator]

yes 4 right and left speakers and one center...i also tryed to connect the system to my phone...and the same situation the center channel is not working....i also put only one speaker in the center input and the other ones i left them not connected and nothing....i don't have other imputs cause i don't have the cables that i need....prob only optical cable could be a test option if im gonna buy one....now i have connected him with an external sound card creative sound blaster x-fi pro surround 5.1 to my laptop

https://imgur.com/sVzvaWu

View: https://imgur.com/sVzvaWu

 

[doominator]

ok now it's working but on 2 of then i have some eco....and center and other 2 sound ok

 

[MDTOP]

So which input is not working ? HDMI?

 

[doominator]

all of the imputs are ok now phone and sound card....it was not selected from the console 5.1 stereo😳 but 2 speakers have echo on both mobile and laptop