Question about RCA F36650 36" TV

2 Answers

Won't turn on and stay on but makes a high pitched buzzing noise

Posted by on

2 Answers

  • Level 1:

    An expert who has achieved level 1.

    Mayor:

    An expert whose answer got voted for 2 times.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 5 Answers

I have found the horizontal output transistor (HOT) to fail and then causing the flyback transformer to fail. Both parts are under $30 total, but the danger is in replacing them. Make sure you discharge the flyback to the ground strap.

Posted on Oct 25, 2009

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 647 Answers

The power supply is shorted or overloaded that's why it buzzes. Horizontal output IC and/or flyback is bad.

Read below and decide if you want to tackle the problem yourself if so I’ll help along the way with what info I have. If not contact the nearest repair shop armed with the info below.

A dead set (no picture no sound) can indicate any number of problems – Usually the set is in shutdown or protection mode – this means that the internal circuits have detected a problem with a supply voltage missing, drawing too much current, going over voltage or a short condition.
The first thing to do is power off the set unplug it for 5min. than replug and try again. This in effect resets the main micro and will sometime unlatch a fault and resume working. There are certain common problems based on the make model – for instance convergence output IC’s(CRT projection TV’s) can cause a dead set symptom in many models. Vertical output IC failure can also cause the same symptom (CRT standard and Projection).
The only way to determine the real cause is :
By an educated guess based on experience or by directly troubleshooting the set – checking fuses, measuring voltages and checking for shorts. Many of the intermittent problems such as, int.(Intermittent) no sound or picture, int. picture shrunken or misshaped. These problems are generally due to cold (bad) solder joints (all TV’s and electronics) that break down under slight temperature changes or vibration and are usually verified by physically tapping the suspected area on the circuit board, or by quickly heating or cooling a suspected component or area ( cold spray and hot air gun). The other main culprit is leaky or dried out capacitors or capacitors that change value depending on temperature. These can sometimes be seen as bulged or leaky and have an acrid odour.

Posted on Oct 03, 2009

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Tv just started making a very high pitched noise, although picture and sound are fine?


Barb, noise may be from a power supply/ transformer on it's way out.
"I hope this helped you out, if so let me know by pressing the helpful button. Check out some of my other posts if you need more tips and info."

HELP what is that high pitched noise when tv is on

Is your LCD making buzzing or high pitch noise

Mar 04, 2016 | Sanyo Dp55441 TV

1 Answer

Funai tv. When plugged in, makes ear piercing high pitched buzz that goes away when unplugged. Will not respond to buttons. No picture or power. Already replaced power board. What now??


TV not turning on; making high-pitched sounds - Tom's ...

www.tomshardware.com > Forum > Graphics Cards

Tom's Hardware Guide
Nov 30, 2013 - 7 posts - ‎2 authors
Both of them are refusing to turn on, and make high-pitched sounds when plugged in and unplugged. More about : turning making high pitched ...Missing: ear ‎piercing

Top 136 Complaints and Reviews about Funai TV ' Page 2

www.consumeraffairs.com > Electronics > Televisions

Rating: 1.1 - ‎65 votes
We unplugged the unit and waited 15 - 20 seconds and plugged the unit back in, and it wouldn't ... He heard a loud high-pitched whining which led him to TV in my daughter's room. ... It only makes a humming sound now, no pictures at all.Missing: ear ‎piercing

HELP! what is that high pitched noise when tv is on? - TV - Audio ...

www.tomsguide.com/forum/60895-6-help-high-pitched-noise

Jan 25, 2013 - 3 posts - ‎2 authors
Hello, I hear this constant high pitched noise, almost like ringing, but even ... pitch

Jan 21, 2016 | Funai Televison & Video

1 Answer

What may cause a high pitch hum.even when muted or volume turned down?


Samsung DLP making a buzzing noise, but works fine - High Def ...

www.highdefforum.com > ... > Rear-Projection TVs

Dec 11, 2009 - 7 posts - ‎5 authors
My Samsung HLP-5063 DLP starting making a loud buzzing noise recently. ... I've only used it to watch TV for a half hour or so at a time, as I have a new LED LCD in my room. ... Other than that, I can't figure out what might be causing it. .... a humming high pitch sound, it will be an issue with the color wheel. RCA D52W25 making high pitch noise - High Def ...
5 posts
Apr 15, 2009
humming sound in my dlp - High Def Forum - Your High ...
14 posts
Nov 6, 2006
More results from www.highdefforum.com

High pitched sound coming from my Samsung DLP TV - Open Forum ...

www.dslreports.com > Forums > Social > Open Forum

DSLReports
Oct 3, 2009 - 30 posts - ‎7 authors
Its so high pitched that some people can barely hear it, but I guess I have sensitive hearing. ... Anyway, this seems to be a fairly common issue and it is caused by either the ... You're probably hearing a transformer humming.

Jan 08, 2016 | Televison & Video

1 Answer

When turned on the screen is blank and makes a high pitch buzz


Samsung LCD TV with no video and high pitched sound - Digital TV ...

www.tomsguide.com/forum/54120-4-samsung-video-high-pitched-sound

Nov 8, 2015 - 25 posts - ‎12 authors
Our is the same model and has started making a very high pitched ... to acutally turn on and then when it does, the screen is still black and we ...

Is your LCD making a buzzing or high pitch noise ...

https://www.devside.net/blog/lcd-making-a-buzzing-noise
Dec 30, 2008 - In my case, the monitor was fine for the first two months. But then started making a buzzing noise... 1) when on, 2) worse when .... my Samsung TV ismaking high pitched noises even if its turned off. I will NEVER EVER EVER ...

TV not turning on; making high-pitched sounds - Tom's ...


Dec 13, 2015 | Televison & Video

1 Answer

Jbl flip makes buzzing noise when turned on


I have the same problem. But after a short time it stops even in battery mode (i.e. unplugged). Did you find a solution in the meantime?

Jan 12, 2013 | Harman Kardon JBL Flip black

1 Answer

Dryer was making high pitched squealing noise and now won't run


Please supply the model number so we can help further.

May 20, 2012 | Hotpoint Dryers

2 Answers

High pitched buzz/whine during wash cycle only, spin fine


1) Make sure valve is open all the way 2) some machines have a screen inside of the hose hook up which could be clogged. 3) last check to see if it is the hot or cold by switch your selector switch on your machine to hot then cold. If one of these positions eliminate the noise then the valve in the machine is bad.

May 16, 2009 | Maytag Atlantis MAV8000

1 Answer

When my rca 36F530 tv is plugged in it makes a high pitched buzzing noise picture does not come on


There is a short circuit in the high voltage circuit. the transformer who helps to create the high voltage or his power transistor is damage. replacement needed. the repair is not expensive, because the parts are average repair. Ask for an estimate.

May 01, 2009 | RCA 36F530T 36" TV

1 Answer

When tv is on it makes a loud buzzing noise


What is the make an and model of the set?

Is the buzzing from the speakers or from inside of the set?

Is it a high pitched frequency buzz or a low pitched frequency buzz?

There are many things that can cause a buzz in a TV set. In anycase, the set will require tech service.


Jerry G.

Jul 26, 2008 | Televison & Video

1 Answer

High Pitch buzz noise when plugged in and it doesn't turn on


The tv has a shorted component and that is why is making the noise,call a qualified technician to find it and dont try to use it anymore.Is not a fuse.

Sep 12, 2006 | RCA F25649 25" TV

Not finding what you are looking for?
RCA F36650 36" TV Logo

407 people viewed this question

Ask a Question

Usually answered in minutes!

Top RCA Televison & Video Experts

The Knight
The Knight

Level 3 Expert

73619 Answers

matt martin
matt martin

Level 3 Expert

1208 Answers

Computer Repairing
Computer Repairing

Level 3 Expert

14641 Answers

Are you a RCA Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...