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Louie
Louie, Technician
Category: TV
Satisfied Customers: 12459
Experience:  25+ yrs. experience in the field and 5+ yrs. online, down to component level.
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Sound is going up and down, checking, everything works but

Customer Question

sound is going up and down
JA: What's the model number of your TV? How old is it?
Customer: checking
JA: Does the TV menu work? Do you have the same problem on all sources/inputs?
Customer: everything works but sound going up and down
JA: How long has this been an issue? What happened right before this popped up?
Customer: 10 minutes nothing happened i was watching tv
JA: Anything else you want the TV expert to know before I connect you?
Customer: samsung smart tv 5 years old approx
Submitted: 7 months ago.
Category: TV
Customer: replied 7 months ago.
i changed the batteries in the remote and unplugged the tv.
Expert:  Louie replied 7 months ago.

Hi and welcome to the site, I’m Louie. Sorry you had to wait awhile but I’ll do my best to help.

Initially, a little more (background) info please:

  • • what is the complete model number of the TV;
  • • is the TV directly connected to an antenna or is there a cable box;
  • • is the described symptom commonly observed with any input/source;
  • • is the volume level indicator displayed and also changes when the "...sound is going up and down..."
Customer: replied 7 months ago.
where can i find the model number?
Customer: replied 7 months ago.
Hi Louie and thanks for getting back to me.
Expert:  Louie replied 7 months ago.

It would normally be on a name plate or sticker ot the back of the TV. POlease try and check carefully.

Customer: replied 7 months ago.
tv is connected to antenna. i have no cable box.
it is observed through any input source.the volume goes up and down with remote but the mute does not work on the samsung remote and i can't take the volume to zero
Customer: replied 7 months ago.
checking
Customer: replied 7 months ago.
AC 110-120V
Customer: replied 7 months ago.
MOdel no UN40F something
Customer: replied 7 months ago.
type no UN40F6300
Customer: replied 7 months ago.
the tv is on the wall and very hard to get behind so i am taking pictures
is that enough info?
Customer: replied 7 months ago.
it was made in 2013
Customer: replied 7 months ago.
i got the full model no. UN40F6300AF
Customer: replied 7 months ago.
are you still there?
Expert:  Louie replied 7 months ago.

Appreciate the additional information and your kind patience while I compose this reply.

To my understanding, the "...sound is going up and down..." without you pressing the + VOL - buttons of the remote nor the buttons of the TV itself. Is this correct please?

Customer: replied 7 months ago.
it is correct. Sound is going up and down without me pressing the volume buttons.
Expert:  Louie replied 7 months ago.

And when this happens, the screen ALSO shows the corresponding changes in the volume level?

Customer: replied 7 months ago.
no the SCREEN DOES not show corresponding changes in the volume level
Expert:  Louie replied 7 months ago.

BUT when the + VOL - buttons of the remote are used, the screen then shows the corresponding changes in the volume level?

Customer: replied 7 months ago.
Customer: replied 7 months ago.
it's not so much about the volume of the sound but more about the sound being interrupted and so it sounds like the sound is going up and down in volume but really it is just not consistently playing
Customer: replied 7 months ago.
volume is the same. sound is intermittent like off and on is a better way to describe it.
Expert:  Louie replied 7 months ago.

I understand and thanks for the clarification; intermittent sound which then changes the symptom.

When the "...sound being interrupted...", is the video presence and quality still the same?

Customer: replied 7 months ago.
everything is the same but the sound
Customer: replied 7 months ago.
hello
Expert:  Louie replied 7 months ago.

There are two (2) possibilities then; internal hardware issue or a software glitch.

The easiest to perform would be to upgrade the firmware. This would serve as both an attempt of a fix and as a test by process of elimination.

If even with an upgraded firmware the symptom would persist, then the internal hardware issue would be confirmed.

Would you be comfortable upgrading the firmware?

Customer: replied 7 months ago.
just tell me how
Customer: replied 7 months ago.
please
Expert:  Louie replied 7 months ago.

Please click HERE for the instructions.

Customer: replied 7 months ago.
thanks i am upgrading
Expert:  Louie replied 7 months ago.

It would be 'safer' to perform the USB method.

Please click HERE for the actual firmware file.

Customer: replied 7 months ago.
i don't have a USB so I am doing via network
Customer: replied 7 months ago.
taking a chance
Customer: replied 7 months ago.
i have not updated since august of 2013. the TV was on automatic upgrade but it looks like it was not working
Expert:  Louie replied 7 months ago.

It would be to your advantage to re-consider using a USB flash drive, even borrowed.

And yes....through the network has had a number of "known bad" results.

Customer: replied 7 months ago.
we will see what happens
Expert:  Louie replied 7 months ago.

Please post back how things turned up and/or should additional information be needed.

Customer: replied 7 months ago.
i can a USB tomorrow and start again. thanks for your help. goodnight.
Customer: replied 7 months ago.
i can get a USB
Expert:  Louie replied 7 months ago.

Great!

Glad that the above information served your purpose and if you haven’t done so, please provide a positive rating at the top of your page

Good luck and thank you too for the opportunity to share the information.

Customer: replied 7 months ago.
TV is not fixed. Oh well
Expert:  Louie replied 7 months ago.

Try the USB.

And if not, then unfortuinately it would be hardware / internal.

For additional test purposes, can you try a Blu-ray or DVD player? ...check if the sound interruption would still be there.

If not (audio is stable), then a possible workaround instead of repairs.