no sound through HDMI(ARC)

I just just bought a Samsung UA55KU6000 Tv and used a HDMI cable to connect it to my Sony Dav-dz640k home theater. everything worked perfectly for about 4 days and then i stopped hearing any sound from my home theater.Any possible solution?Thank You in advance.

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ARC can be like that.
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HT is not dead

Thank you for the response but i don't think the HT is dead as it works fine with my old Samsung 40" TV.
I have checked your link and the connections are good.
My Samsung is in Home Mode.

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Now it gets complicated.

ARC, CEC is troublesome at times. Try another cable, be sure you're on the right port and if so, call it in to Samsung to repair the set.

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Really getting frustrated

I have tried different cables which all works with my old TV. I have been trying to get to Samsung to repair my TV which i bought just a week ago and i can't seem to reach them Sad

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Back to the shop then ...

for advice, for warranty, and for the missing manual that tells how to reach tech support.

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A week old failed TV?

Here that's inside the 14 to 15 day return period. Kees and I live in different countries so here we return failed products when it's new rather than get a runaround from the maker.

In Kees country I think their rules are the seller must support the product. Your country may be different.

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running out of idea

I have run out of ideas now and i have asked for the replacement of my TV. if only i can get through the customer care service Sad

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In the future, post full model numbers.

Post was last edited on December 14, 2016 10:32 AM PST

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Complete TV infos

Model Code: US55KU6000
Serial Number: 00ZW3NFHA00197J
Software Version: T-JZL6UABC-1142.0
Sub-micom Version: T-JZMDEUS-1008
e-Manual Version: JZISDBK-1.1.1

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"Samsung Experience Store
3 km

VivoCity #02-28/29, Singapore 098585

Phone : 6376 9150 "

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Try this

Unplug power of both, disconnect HDMI cable and wait 5 minutes. Then plug in TV first and power it on. Connect HDMI cable. Then plug in Sony and power it on. Check that both the TV and Sony HDMI Controls are enabled. Choose to use only one of your remotes (either will do) to control both TV and Sony by programming it. If it works but breaks again in future you can redo the steps or disable ARC altogether and use Toslink for TV sound. May have to adjust video/audio sync then. Not ideal but that the price to pay for lousy TV speakers. You cannot use an external tuner without replacing the Sony. Good luck.

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