Samsung audio optical output does not function HELP (please)

[notrub]

I have 2 Samsung NU7300 55" TVs and 2 pairs of Edifier R1280DB speakers and 2 Asus PCs. The TV and speakers both have optical audio connector sockets. The optical output worked on the first one and then stopped months ago. The new TV setup (in the gym room) did not work at first and I changed all values to PCM in both TVs. Then I changed the HDMI connector to the second socket in the new one and the optical connection worked. Tried the same thing on the older one with no luck. The Edifier speakers work with bluetooth on the computer but bluetooth is not included on the NU7300 TVs. The TV sound functions on both units and show up on the 2 PCs as the default player device. Both TVs are connected to the PCs as an extension viewing screen. I tried putting a bluetooth dongle into the USB socket on the TV but had no luck with that either. I have reset TV factory setting with no luck. Any ideas please? Thank you

 

[highfigh]

I have 2 Samsung NU7300 55" TVs and 2 pairs of Edifier R1280DB speakers and 2 Asus PCs. The TV and speakers both have optical audio connector sockets. The optical output worked on the first one and then stopped months ago. The new TV setup (in the gym room) did not work at first and I changed all values to PCM in both TVs. Then I changed the HDMI connector to the second socket in the new one and the optical connection worked. Tried the same thing on the older one with no luck. The Edifier speakers work with bluetooth on the computer but bluetooth is not included on the NU7300 TVs. The TV sound functions on both units and show up on the 2 PCs as the default player device. Both TVs are connected to the PCs as an extension viewing screen. I tried putting a bluetooth dongle into the USB socket on the TV but had no luck with that either. I have reset TV factory setting with no luck. Any ideas please? Thank you

I don't know if it applies to your situation, but I found this on page 36 of the Samsung manual-

"If you connect an external audio device using an optical cable, the Sound Output setting is automatically changed to the connected device. However, to make this happen, you must turn on the external audio device before connecting the optical cable. To manually change the Sound Output setting, do one of the following:"

http://downloadcenter.samsung.com/content/UM/201901/20190102114948285/ENG_US_KM2ATSCN-3.0.4.pdf