Question about Symphonic ST420FF 20" TV

1 Answer

TV Making a Loud Noise

The television is making a loud buzzing noise when it is on. The noise doesn't always occur; but when it does occur it is loud and disturbing and ruins the enjoyment of watching the television. The noise is not localized to a specific channel, and there is no way to predict when it will begin or end. I have had the television for about three years and I think that the television is in someway defective.

Any Advice,

Thanks,


Cory.

Posted by on

  • corylozon Oct 07, 2008

    For the most part it seems that the problem cannot be corrected. It sounds like this problem is the result of wear and tear of the television. I will try to adjust the brightness to see if there is any improvement; thanks for the solution.





    Cory.

×

1 Answer

  • 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
  • 899 Answers

This can happen with the flyback transformer's brightness which can be adjusted , also the power transformer can make humming or buzzing sounds which can't be adjusted , also this can happen with the picture tube or the CRT board failing , and sometimes chips with heat sinks or the IC's themselfs

Posted on Oct 07, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Loud popping noise tv


EHT arcing takes place. Never switch the TV on, until this fault has been rectified. Doing so, will make too many other faults to occur. Contact any service technician.

May 23, 2013 | JVC AV-35750 35" TV

1 Answer

A loud buzzing is coming from the back of my sanyo ds 25390 tv. picture and regular sound is fine


If it is a high pitched whine or buzz it is likely a transformer vibrating so hard it is making the noise.

There are ways to try to deal with this issue but the set has to be opened and probed to locate where it is coming from--


for example with back off and set on a plastic rod can be used to touch areas and exert slight pressure until the sound changes or goes away--then either replace the part or I have used hot glue etc to stop it.

You first have to locate the source of the issue:

find where it is coming from.

Mar 24, 2012 | Standard (CRT) Televisions

1 Answer

The TV just started making a loud buzzing noise last week, the buzzing sounds begins after the TV has been turned on for 15 or so minutes- the sound stops about 15 seconds after the TV is turned off. The...


This tv have a colors wheel. The tv colors wheel is dead.The buzzing noise is the cause of the colors wheel is spinning of is axis and rubbing sides of the motor.Hire a tv tech. for the job.Colors wheel is hard to replaced,because have to take out many other machanical parts,even before can change the colors wheel it self.

Aug 31, 2010 | Samsung HL-P6163W 61" TV

1 Answer

Buzzing sound on samsung


it sounds that u have a color wheel problem my friend

Jan 19, 2010 | Samsung DLP HL-P5663W 56" TV

2 Answers

My tv is making a loud buzzing noise


Bearings in color wheel going bad and needs to be replaced. Call a local tv repair shop on pricing and availability of color wheel for your model and chassis
number.

Dec 03, 2009 | Samsung DLP HL-P5663W 56" TV

2 Answers

Loud buzzing noise when turning on


It sounds like a bad internal connection or a component failing. If the picture still is very good take it to a known good repair shop.

Nov 21, 2008 | Standard (CRT) Televisions

1 Answer

Loud sound, No TV Picture


Power supply needs to be replaced - common problem with these tv"s

Sep 18, 2008 | RCA 32F531T 32" TV

2 Answers

Television problems


Have the speakers ever been played loudly? They may have been pushed passed their capacity, in which case, it may be time for a new tv.

Dec 16, 2007 | Standard (CRT) Televisions

Not finding what you are looking for?
Symphonic ST420FF 20" TV Logo

300 people viewed this question

Ask a Question

Usually answered in minutes!

Top Symphonic Standard (CRT) Televisions Experts

The Knight
The Knight

Level 3 Expert

68314 Answers

Cindy Wells

Level 3 Expert

4758 Answers

matt martin
matt martin

Level 3 Expert

1191 Answers

Are you a Symphonic Standard (CRT) Television Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...