Sonos play 3 won't boot

The AVR-E300 doesn't have an audio output. It's a very basic AV receiver built down to a price.

Even if you has a better quality receiver, you still would only be able to port sound from analogue sources (ones connected via red & white RCA/phono) to the Sonos Connect for distribution around the rest of your home. AV receivers don't decode audio from HDMI sources to analogue stereo.

If you want to port sound, hook up a source direct to the Sonos Connect's audio input. Don't try going via the receiver.

if you can get hold of a windows disc try booting from that and using the repair option.

how do i unlock my sonos controller from demo mode

Remove the main battery and try again, also! the power adapter charger should be checked for correct voltage, if okay! pull one stick of ram and test, and the second piece not forgetting to put the first one back and power up, if all this fails you will need to get it assessed.

step one, big battery out? skipped that?
step 2, a good power pack , that means 19vdc on those 2 pins.
bingo BIOS screen now work ,yes?
step 3, try an external VGA screen at the P15 VGA jack there
screens work now (BIOS first) yes/no?

remove DVD, drive
and all USB devices
there booting with only 1 memory stick. (got more?, try each 1 by 1)
black screens of *****'.

the lack of flash codes, Implies Power pack is dead. or CPU overheated, and selfshuts down. that fan going dead tells
me the power park is dead.

http://pcdied.com/#black-screens

I HAD HE SAME PROBLEM
IT SEEMS YOUR HARD DRIVE IS DEAD
NOW ORDER A NEW SATA HARD DRIVE AND REINSTALL THE WINDOW
IT WORKS

Call Sony. They will fix it for you, no problem. They will ship you a "Coffin" to send the PS3 back, and if it can not be fixed, they will replace it with a refurbished one.

Unfortunately you have the red light of death (RLOD). Which means your graphics card has overheated. Repairable, but prob won't last. Mine didn't. I'm on my 3rd PS3, thankfully the slimline models don't suffer this problem.
Hope this helps.
LJ

Can music be played through it? If yes, you need to just go into the zoneplayer settings and uncheck the box regarding the white indicator like.

Attach the analog RCA output of the Sonos to the CD input of your receiver. On the receiver select CD is the input. Now turn the volume up on both the Sonos and the Receiver. Dont forget to make sure some music is playing on the Sonos.
Good luck