TV

Facing TV Problems? Ask a TV Technician.

Ask an Expert,
Get an Answer ASAP!

I have LG model 55LF5700-UA. Bought it a week ago but just…

Customer Question
I have LG model 55LF5700-UA...
I have LG model 55LF5700-UA. Bought it a week ago but just hooked it up. Everything works properly except I lose sound after 60 seconds when watching cable TV. Sounds works fine when watching Amazon, Netflix and etc. Plus sounds works fine when playing PlayStation 4.
Submitted: 2 years ago.Category: TV
Show More
Show Less
Ask Your Own TV Question
Answered in 1 minute by:
3/1/2016
TV Technician: Shahid, Technician replied 2 years ago
Shahid
Shahid, Technician
Category: TV
Satisfied Customers: 12,955
Experience: I have been repairing electronic gear since 1993 as a qualified Sony tech
Verified

Hello, my name is ***** ***** I'll assist you. I'm sorry you're having trouble with it.
I need additional info to troubleshoot the issue.

- Have you tried to unplug TV and cable box power cords from wall outlet for 10 minutes to reset, replug back in, let cable box reboot that may take several minutes and check?
If not yet, can you try it now and reply back with the result?

Thanks.

Ask Your Own TV Question
Customer reply replied 2 years ago
I unplug the tv and plugged it back in. Still the same. I don't have a cable box. The coax goes straight to the tv. I didn't have this problem with the tv before this one or any other tv's in the house.
TV Technician: Shahid, Technician replied 2 years ago

OK, I need to go offline so let me repost this question and hopefully another expert will soon respond to assist you further.

Thanks.

Ask Your Own TV Question
TV Technician: littlerusty2005, Expert replied 2 years ago
littlerusty2005
Category: TV
Satisfied Customers: 6,061
Experience: Plasma, LCD, LED, converters, resolution specialist.
Verified

Hello, my name is Rusty. Go to Settings>Audio>Audio mode, what is it set to now? If it's on auto, set it to stereo, and tell me if it still cuts out.

Ask Your Own TV Question
Customer reply replied 2 years ago
I noticed before I set it to stereo a few channels wouldn't lose sound. I just now set it to stereo and it's the same.
Customer reply replied 2 years ago
some channels takes longer to lose sound.
TV Technician: littlerusty2005, Expert replied 2 years ago

Ok, I think we may need to get you a digital decoder box. Your TV seems it is incompatible with the digital signal that comes in. When it switches between PCM and DTS, that is when the sound drops out. You're having problems with the DTS channels.

If you have a digital tuner, you can lock the output to PCM, and it won't cut out on your TV. Setting your TV to stereo fixed some channels, so that's telling me that digital decoding is not working properly. When the sound cuts out, can you change the channel, and change it back to get it working? Or turning it off then back on, does that bring the sound?

I think the decoder box is going to be the long term solution.

Ask Your Own TV Question
Customer reply replied 2 years ago
When I change the channel and change it back the sound is working.
TV Technician: littlerusty2005, Expert replied 2 years ago

Yep, that is most definitely what is happening. The way to fix it is to lock in PCM, and the way to do that is to add a digital tuner before plugging the coax into the TV. You can change the menu setting in the box to only output PCM, and your problem is solved.

Ask Your Own TV Question
Customer reply replied 2 years ago
Ok. Thank you. I will pick one up today.
TV Technician: littlerusty2005, Expert replied 2 years ago

That should clear it up, I see this digital mismatch all the time. If the signal is too hot, or too weak, it will go silent. If it is encoded in any way that is not specific to the TV, it will go silent. The boxes are built a bit better so that isn't a problem, and you can lock them into PCM, plus it conditions the signal for your TV.

Ask Your Own TV Question
Customer reply replied 2 years ago
I've also notice the channels that loses sound have a smaller picture and the channels that keep sound are full screen. Is that because of the same reason of needing a digital tuner box?
TV Technician: littlerusty2005, Expert replied 2 years ago

That is also a digital signal problem. The channels that are doing programming out of the realm of what other channels are doing are broadcasting anomalies. Again, a digital tuner should clear that up.

Ask Your Own TV Question
Customer reply replied 2 years ago
Awesome thanks.
Customer reply replied 2 years ago
Can you suggest a reasonable priced digital tuner?
TV Technician: littlerusty2005, Expert replied 2 years ago

Absolutely, the last I checked they were around $40. Give me a minute to pull one up.

Ask Your Own TV Question
TV Technician: littlerusty2005, Expert replied 2 years ago

Click here. For some reason, Walmart is the best place to get them. When you plug it in, set up your channels on your TV. It will show up on channel 3 or 4. Then scan for channels with the box, and you'll be all set.

Ask Your Own TV Question
Customer reply replied 2 years ago
Sorry to bother you again, but I do have a digital converter box for when I had the older non-flat tv. Is that what I need?
TV Technician: littlerusty2005, Expert replied 2 years ago

Yes, that will work just fine. You'll still need to do the setup for channel 3 on your TV, and search for channels on your converter box.

Ask Your Own TV Question
Was this answer helpful?
Ask littlerusty2005 Your Own Question
littlerusty2005
littlerusty2005
littlerusty2005, Expert
Category: TV
Satisfied Customers: 6,061
6,061 Satisfied Customers
Experience: Plasma, LCD, LED, converters, resolution specialist.

littlerusty2005 is online now

A new question is answered every 9 seconds

How JustAnswer works:

  • Ask an ExpertExperts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional AnswerVia email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction GuaranteeRate the answer you receive.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

I'm screaming your praises!! WOW! I plugged my TV in and bammo! The picture came on bright and beautiful. What a relief! YOU saved me some money and headache.

VMUnited States

I love this site! $9 instead of a repairman or new/used frig can't be beaten. This older woman will worry less now that she knows about this site. Bless you all.

WindyUSA

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.

Mary C.Freshfield, Liverpool, UK

This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!!

AlexLos Angeles, CA

Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult.

GPHesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.

JustinKernersville, NC

Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around.

EstherWoodstock, NY

< Previous | Next >

Meet the Experts:

Louie

Louie

Technician

2,950 satisfied customers

25+ yrs. experience in the field and 5+ yrs. online, down to component level.

Rod

Rod

TV & Communications Sys Repair

2,355 satisfied customers

FCC Commercial License, Previous owner of Electronics Repair shop, 40+ years in electronic systems.

Steven

Steven

Technician

1,429 satisfied customers

Ma. Master Technician Lic. Authorized Warranty Support.

euro-pro llc

euro-pro llc

Technician

1,128 satisfied customers

20 years in TV repair,certified by all major brands- Sony,Samsung, LG,Toshiba, Panasonic, RCA,

Daniel

Daniel

Electrical Engineer

1,072 satisfied customers

BSEE (Electrical Engineer), 10+ years electronic design experience ,chip, board, component expert

Conrad

Conrad

Technician

946 satisfied customers

Training on many types of consumer electronics, training on Sony Samsung and JVC

Neil

Neil

Technician

803 satisfied customers

More than 10 years experience repairing TV's and electronics equipment.

< Previous | Next >

Related TV Questions
It is my Vcr Model VC-a56ou. At least 10 years. I turned it
I turned it on and the power light comes on but no response from any other buttons. I tested it about a year ago and it worked - I have never really used it … read more
p0llinate
p0llinate
Bachelors of Science
14 satisfied customers
When we turn on our RCA flat screen TV a box comes with the
When we turn on our RCA flat screen TV a box comes with the statement in it "Please run Channel Auto Scan". I don't know what that means and how do we do this to get our tv back in normal mode. Thank … read more
technicalcat
technicalcat
Computer Science
840 satisfied customers
My Panasonic 61 inch Lífi-hdtv does not come on. It blinks
My Panasonic 61 inch Lífi-hdtv does not come on. It blinks to green and then red before shutting down. … read more
p0llinate
p0llinate
Bachelors of Science
14 satisfied customers
In nursing home and Vizio TV pic has 'snow' Don't know. Menu
In nursing home and Vizio TV pic has 'snow' JA: What Vizio model do you have? How old is it? Customer: Don't know JA: Does the TV menu work? Do you have the same problem on all sources/inputs? Custome… read more
Richard
Richard
IT Manager
IT Manager, Consultant
3,417 satisfied customers
Our 50 in flatscreen will not come on. When pressing the
Our 50 in flatscreen will not come on. When pressing the power button, the green power light will come on for about five seconds then goes off. … read more
Mike G.
Mike G.
Television Repair Technician
Vocational, Technical or Trade Scho
1,673 satisfied customers
We were watching TV and the screen went dark and the red
We were watching TV and the screen went dark and the red light flashes. We cannot turn it off or get picture on the screen … read more
p0llinate
p0llinate
Bachelors of Science
14 satisfied customers
I have Vizio 70" smart TV. I have 3 places tha has developed
I have Vizio 70" smart TV . I have 3 places tha has developed a shaded area about 4" wide and 12 " long.What can be causing this? … read more
p0llinate
p0llinate
Bachelors of Science
14 satisfied customers
It says one tv one moment please channel will be avabile.
It says one tv one moment please channel will be avabile … read more
p0llinate
p0llinate
Bachelors of Science
14 satisfied customers
Emerson led hdmi 30" used as pc monitor. I have the remote,
emerson led hdmi 30" used as pc monitor. I have the remote, and the screen was working. Now it doesn't show anything but black screen, doesn't respond to the remote with new batteries or the buttons o… read more
p0llinate
p0llinate
Bachelors of Science
14 satisfied customers
I ave a sony 65x930d, about 1 and 1/2 yrs old. It just
i ave a sony 65x930d, about 1 and 1/2 yrs old. It just stopped working. power is on. I cant get it to work from button on tv or remote. I used it this afternoon, turned it off normally, and now nothin… read more
info tech
info tech
Self Employed
Vocational, Technical or Trade Scho
341 satisfied customers
Panasonic plasma 50in. nopicture or sound power on will not
panasonic plasma 50in. nopicture or sound power on will not shut off. unpluged 10 min. pluged in will turn on red light but nothing else. … read more
info tech
info tech
Self Employed
Vocational, Technical or Trade Scho
341 satisfied customers
The screen is black and the power light is blinking in a
the screen is black and the power light is blinking in a three blink pattern. … read more
Aric
Aric
Owner/Operator of a custom AV company
Run A/V and repair business for over
13,664 satisfied customers
RTDVD 1900 HAVEN'T YET BEEN ABLE TO WATCH GET CONSISTENT
RTDVD 1900 HAVEN'T YET BEEN ABLE TO WATCH GET CONSISTENT MESSAGE "PLEASE RUN CHANNEL SCAN. I HAVE DIRECT TV SATELLITE, IS THIS A PROBLEM WITH DIRECT TV?… read more
hongkongpom
hongkongpom
Computer Desktop Support
Associate Degree
288 satisfied customers
How do you re-scan channels when they have changed in your
How do you re-scan channels when they have changed in your area? I do not have cable and use an antenna. … read more
p0llinate
p0llinate
Bachelors of Science
14 satisfied customers
No sound or picture, remote/television, sanyo hdi maybe 3
sanyo hdi maybe 3 yrs old. it was working fine this afternoon, then it stopped … read more
Shahid
Shahid
Technician
12,955 satisfied customers
I have a Sony TV its about 5 years old and after being on
I have a Sony TV its about 5 years old and after being on for 3 hours it starts ghosting … read more
Shahid
Shahid
Technician
12,955 satisfied customers
How can I find the model number of my LG tv. I don't know
I don't know the model and I don't know how old it is. That' That's what I'm trying to find outl … read more
Aric
Aric
Owner/Operator of a custom AV company
Run A/V and repair business for over
13,664 satisfied customers
My cable box went out this morning and I have switched all
My cable box went out this morning and I have switched all of the coax and box out and all I get on my screen is no signal. … read more
Aric
Aric
Owner/Operator of a custom AV company
Run A/V and repair business for over
13,664 satisfied customers
Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Show MoreShow Less

Ask Your Question

x