No sound from cable box.

[gamelovers11223]

This morning I swapped a bluray player with a cable box - everything works, picture and sound present.
Have not yet tried to recet the avr, will try that tomorrow.

 

[mtrycrafts]

This morning I swapped a bluray player with a cable box - everything works, picture and sound present.
Have not yet tried to recet the avr, will try that tomorrow.

So, if I understand, you plugged to BD player into the cable/sat input, it works. so the input works with HDMI source.
Did you plug the cable box into the BD input and does that work as well?
If so, may want to just live with that cross connection?

 

[gamelovers11223]

So, if I understand, you plugged to BD player into the cable/sat input, it works. so the input works with HDMI source.
Did you plug the cable box into the BD input and does that work as well?
If so, may want to just live with that cross connection?

I tried to plug the cable box in to the bluray input and there was no sound.

 

[mtrycrafts]

I tried to plug the cable box in to the bluray input and there was no sound.

Did you try to see the audio setup for that input and if it changed from the setting you had with the BD player for that input?

Since the cable/sat input works with the BD player, not sure what a receiver reset will do to solve your problem. And, the cable box works through HDMI with direct connection to TV.
Both HDMI inputs on receiver works.

A handshake issue? Try a different turn on sequence of components.

Perhaps a last experiment is to connect cable box directly to TV, then an HDMI cable to the receiver
with that ARC feature?

 

[TLS Guy]

I have a strong suspicion that a firmware update was done via the cable connection to the cable boxes and the update is not HDCP compliant.

 

[gamelovers11223]

Thanks guys. I think its the cable boxes like mentioned above. I'll just leave it connected like that for now.

 

[bigraham]

I had the same problem w/ my Samsung Cable box (Optimum) and LG TV. Turns out the problem wasn't with the box, but with the smart LG TV. Under >Settings/General/HDMI ULTRA HD Deep Color, I turned that option off for the HDMI port being used. (I read this on a similar thread for a Samsung UHD TV, and the problem was similarly solved by Turning off HDMI UHD Color in General/Settings)

 

[g277]

I had the same problem w/ my Samsung Cable box (Optimum) and LG TV. Turns out the problem wasn't with the box, but with the smart LG TV. Under >Settings/General/HDMI ULTRA HD Deep Color, I turned that option off for the HDMI port being used. (I read this on a similar thread for a Samsung UHD TV, and the problem was similarly solved by Turning off HDMI UHD Color in General/Settings)

After trying every idea out there, a visit by the cable guy, and 2 replacement samsung boxes, THIS is what solved the problem.LG UHD color knocks out samsung cable box sound for some reason! Thanks a million for posting!

 

[TechToys2]

After trying every idea out there, a visit by the cable guy, and 2 replacement samsung boxes, THIS is what solved the problem.LG UHD color knocks out samsung cable box sound for some reason! Thanks a million for posting!

I am having the exact same problem with a Samsung Cable box from Optimum but the TV is a Sony A80J OLED. I hardly ever watch Cable TV and it was working when I set everything up about a month ago, but now no sound. Tried everything I can think of. I'm going to see if there is a similar setting on the Sony TV I can turn off.

 

[TLS Guy]

I am having the exact same problem with a Samsung Cable box from Optimum but the TV is a Sony A80J OLED. I hardly ever watch Cable TV and it was working when I set everything up about a month ago, but now no sound. Tried everything I can think of. I'm going to see if there is a similar setting on the Sony TV I can turn off.

Samsung seem to be in the awkward squad far too often for comfort these days.

 

[TechToys2]

Samsung seem to be in the awkward squad far too often for comfort these days.

After hours troubleshooting today I came across this thread and now found a similar setting in the Sony (changing the HDMI input setting from Enhanced Dolby Vision - which the TV supports - to "Standard"). Problem solved. Saved me swapping out the cable box and who knows how much other headache.