TV

Facing TV Problems? Ask a TV Technician.

Ask an Expert,
Get an Answer ASAP!

My name is ***** *****. I ahve a, My name is ***** *****. I…

Customer Question
My name is *****...

My name is ***** *****. I ahve a

Technician's Assistant: Thanks. Can you give me any more details about your issue?

My name is ***** *****. I have a Samsung Ln40B530P7n LCD TV. It sat next to a very hot fire and the bottom of plastic covers melted and TV stopped working. The wiring harness from tuner/logic board to the remote sensor got trashed. The wire insulation melted and wires all shorted together. I rebuilt the wire harness and cleaned all the PCBs -- they were black with carbon soot etc. The TV now is functioning with audio but no picture. I can change channels, volume control works, tuner is working. All voltages 5.1v, 13vs, 13vm are present but not 2100v to the backlight.

Submitted: 2 years ago.Category: TV
Show More
Show Less
Ask Your Own TV Question
Customer reply replied 2 years ago
What is going on here? I started to ask a question and it got interrupted
Customer reply replied 2 years ago
I have not finished asking my question
Above it says deposit is $18 but the page I was directed to quoted a different price. This is very confusing.
Customer reply replied 2 years ago
Is anyone there?
Answered in 4 hours by:
3/9/2016
TV Technician: Russell H., Service Tech replied 2 years ago
Russell H.
Russell H., Service Tech
Category: TV
Satisfied Customers: 12,421
Experience: 8+ years of professional experience
Verified

Hi, thank you for contacting JustAnswer.com. My name is Russell. I will do my best to provide the right answer to your question.

If the backlight voltage is missing either

A. something is shorting it and causing the power supply to shut down that voltage for safety, or

B. the power supply is defective, and needs replacing.

To find out whether it is A. that is the case, try disconnecting all loads from the backlight voltage, and see if it springs up again. If not, then (B) is the case most likely. (In which case check all fuses in the power supply before replacing it as a whole.)

If this answers your question, please rate my answer. Thanks.

Ask Your Own TV Question
Customer reply replied 2 years ago
I already knew this and stated so in my follow up and more complete reply before you answered. Now one would respond to my request to talk to me, In fact, from what I know is if all loads are disconnected from the high voltage, the supply will sense this and shut down so that is not a test that will work and yield any information. I was trying asking you for a schematic diagram of the supply so I could intelligently trouble shoot the problem but you and your site kept ignoring my attempts to ask. This service is not any good. I was interrupted while writing my original question to supply credit card information before I finished posing my question. I give this site a failing grade for usefulness.
This site needs to provide a better user interface and quit interrupting a potential client in the middle of his asking a question demanding money before he finishes typing in his question.George Hnatiuk
Customer reply replied 2 years ago
I am looking for a schematic diagram for the power supply and back light circuitry and never got an answer as to whether orIn light of the problem I have had trying to communicate with your techs, I feel ALL of my money should be refunded. This has been a waste of my time.
George
TV Technician: Russell H., Service Tech replied 2 years ago

I saw no request about a schematic.

So I did not try to provide one.

If you were interrupted by anything whatever, I assure you I have no power over such matters and had no hand in design and presentation of this site.

I have Opted Out of this case. Thanks.

Ask Your Own TV Question
Customer reply replied 2 years ago
Russell,I do not blame you. The user interface of this site is very poor at best. It keeps demanding for money before one has a chance to completely pose a question. Very Very poor design. I will never use it again.George
Was this answer helpful?
Ask Russell H. Your Own Question
Russell H.
Russell H.
Russell H., Service Tech
Category: TV
Satisfied Customers: 12,421
12,421 Satisfied Customers
Experience: 8+ years of professional experience

Russell H. 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
there is no sound on my bush lcd t.v,can this be repaired
there is no sound on my bush lcd t.v,can this be repaired plz?… read more
TX_Engineer
TX_Engineer
Software Engineer
Bachelor's Degree
55 satisfied customers
My Vizio does not have sound.....it is not on mute, the volume
My Vizio does not have sound.....it is not on mute, the volume control works, but no sound. No settings have been changed. Picture is on and everything else works also. Vizio model# XXXXX LCD HDTV 120… read more
Aric
Aric
Owner/Operator of a custom AV company
Run A/V and repair business for over
13,664 satisfied customers
Hello I am Mark. I have an Lg 32lb9d lcd tv. Powers on and
Hello I am Mark. I have an Lg 32lb9d lcd tv. Powers on and back light Lit but No picture or sound. Remote seems to work, the green power light blinks when attempting to enter menu, change channel.ex. … read more
TV Tech1
TV Tech1
Associate Degree
4,544 satisfied customers
All of a sudden my remote for samsung tv volume control does
All of a sudden my remote for samsung tv volume control does not work properly. the volume up, down , mute. Help please … read more
Mike G.
Mike G.
Television Repair Technician
Vocational, Technical or Trade Scho
1,673 satisfied customers
Was trying to reset volume control on my remote now the
Was trying to reset volume control on my remote now the screen is stuck on setup code. Can not exit screen. I tried unplugging tv and restarting but still cannot exit this screen. I can hear the progr… read more
Richard
Richard
IT Manager
IT Manager, Consultant
3,413 satisfied customers
Volume control is stuck at 24. Won't go up or down? Yes,
Volume control is stuck at 24. Won't go up or down? … read more
p0llinate
p0llinate
Bachelors of Science
14 satisfied customers
I need the volume control on my Samsung smart tv increased.
I need the volume control on my Samsung smart tv increased. At volume 100 it can barely be heard. thanks … read more
Shahid
Shahid
Owner of Repair Shop
High School or GED
3,506 satisfied customers
My daughters remote works except for the volume control. I
My daughters remote works except for the volume control. I have replaced the batteries but that didn't help. Any suggestions… read more
stevenl1469
stevenl1469
26 satisfied customers
A new TC55EX601, purchased Dec23/2017; the volume control
A new TC55EX601, purchased Dec23/2017; the volume control moves rapidly by several levels rather than one level at a time. Adjustment? … read more
Dan T.
Dan T.
Calibration and Repair Center Supervisor
Associate Degree
5,680 satisfied customers
I have a Sony 60 in TV, all of a sudden my volume control
I have a Sony 60 in TV, all of a sudden my volume control stopped working … read more
Shahid
Shahid
Owner of Repair Shop
High School or GED
3,506 satisfied customers
My volume control between tv and remote does not work. Hdm1.
My volume control between tv and remote does not work … read more
Shahid
Shahid
Owner of Repair Shop
High School or GED
3,506 satisfied customers
Volume control on remote will not work new tv. Just 2 cables
volume control on remote will not work new tv JA: Are all the cables at the back of your TV connected tightly to the right sockets? Customer: yes JA: What type of input cables are you using: HDMI, RCA… read more
Jack
Jack
technician
factory trained engineer
2,163 satisfied customers
Volume control only works on TV speakers, using the Digital
Volume control only works on TV speakers, using the Digital optical cable to a converter works because I need to use headphones but when I use the volume control all that comes up is a box on the left… read more
Jack
Jack
technician
factory trained engineer
2,163 satisfied customers
On connecting to internet have no volume control onsony
on connecting to internet have no volume control onsony bravia tv … read more
Richard
Richard
IT Manager
IT Manager, Consultant
3,413 satisfied customers
For some reason our Bose TV volume control is not working.
For some reason our Bose TV volume control is not working … read more
Ronald Brock
Ronald Brock
Field Technician
Architectural Drafting
55 satisfied customers
I have an issue with volume control on my TC-26LX50 LCD TV,
I have an issue with volume control on my TC-26LX50 LCD TV … read more
Shahid
Shahid
Owner of Repair Shop
High School or GED
3,506 satisfied customers
Our tv will not alter volume control either manually or by
our tv will not alter volume control either manually or by using the remote control, it is omly 2 years old … read more
Jack
Jack
technician
factory trained engineer
2,163 satisfied customers
My TV a Sharp LC32D40U, turns on, theres sound, but no picture.
My TV a Sharp LC32D40U, turns on, there's sound, but no picture. I can hear the channel i put on fine, but pic is black. Please can you tell me what parts need to be replaced. Thank you for your help.… read more
Louie
Louie
Technician
Associate Degree
2,950 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