Question about Zenith P42W34P 42 in. EDTV-Ready Plasma Television

1 Answer

Buzzing i have a unit that buzzes when looking at the back of the unit it is the board on the right. power board. set was repaired once lasted about three hours, then buzzing or humming came back. it is not the back cover it buzzes with the cover off. thank you bsc

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Zenith Master
  • 5,568 Answers

I suspect it is a transformer or inductor although most are now ferrite instead of laminated iron, they can have windings not properly potted.

You can try a variation on an old mechanic's trick.
They (and I have) used a screwdriver, placing the tip on various sections of the engine and the handle on the bone right behind the ear.
Many warning sounds can be located this way.

DON'T use a screwdriver but a length of unpainted wooden dowel, or, if you have a length of nonconductive plastic, in the same manner, placing the 'input' end on suspect parts and the other end behind your ear.

Look especially for larger parts on the power board; these will be transformers or filter inductors.
Smaller parts are not likely to make any noise at all.

Make the dowel long enough so you can stay well clear of any part of the set since it will be necessary to have it powered up to locate the source.

If you are able to locate it, turn the power off, unplug the set and force some epoxy into any cracks or openings you see on the (?) object.

Happy hunting-

Posted on Jul 09, 2008

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

RE: Samsung microwave SMH7187STG mfg'd 5/08. I heated cup of tea 2 min.Then I closed micro's door & micro emitted a continuous electrical buzzing sound.I opened door & buzzing stopped.


The cook relay on your control board is shorted, and the unit is cooking whenever you close the door.

When the magnetron overheats, its thermostat opens, shutting power down until the unit cools to a safe level, then power is restored.

I regularly repair these with my $54.95 service, which includes insured return shipping.

Details are here, or for full information and instructions, please e-mail me here at pupista@gmail.com and remind me of your full model number and symptoms.

Dec 20, 2016 | Samsung Microwave Ovens

1 Answer

Vizio back light buzzing and flickering


You are headed in the right direction

Sep 23, 2012 | Vizio VX42L 42 in. LCD TV

1 Answer

Tv has a buzzing nouse


In almost all cases this is caused by a small transformer which is vibrating hard enough to cause the buzz.

The louder it is the easier to locate it.

Repair techniques vary from locating and dampening the sound with Hot Glue Gun to just replacing the entire board that it is on.

It is irritating but poses usually no safety issue.

Hint: usually in newer sets it comes from the power supply board.

Apr 03, 2012 | Samsung Televison & Video

1 Answer

Whirlpool Refridgerator less than 2 years old Making loud buzzing noise this eve so I turned the cooling dial down to off. It stopped the buzzing, but now that I have powered it back to level 3 it will...


Hi,

Many times a freezer and/or refrigeratordo not work right because of a dirty condenser coil...there are also many otherthings that can go wrong. If you are hearing a clicking or buzzing thencheck out the last two tips.

If your refrigerator is running but warm, then...

Check out these tips that I wrote about that... it is a great place to starttrouble shooting your unit...and something that you can do rather then callinga repair person to do a simple thing for you...

Refrigerator Condenser Coil Cleaning Refrigerator Repair

Refrigerator Troubleshooting Refrigerator Compressor

Refrigerator Compressor Start Capacitor and Start Relay
Refrigerator or Freezer not Cooling or Getting Cold

heatman101
=- =-=-

Sep 08, 2011 | Whirlpool Refrigerators

1 Answer

Humming sound


Samsung states - A buzzing sound from your plasma TV is normal. It is caused by the electrical charges used to create the images on the screen. The buzzing, however, should not be so loud that you can hear it when the volume on the TV is set at normal levels.It is also important to determine the type of buzzing sound. A sound like a ground hum is completely normal. This buzzing can originate near the power cord connection or from the SMPS board position on the upper back of the TV. The buzz will be more audible as contrast increases on the screen, most notably when displaying an all white screen. If the buzzing sound is loud, you may have the Contrast set too high. Lower the contrast to reduce or eliminate the buzzing.You may also have loud buzzing if the rear of your Plasma TV is too close to a wall or other hard surface. Try moving your TV away from the wall until the buzzing is minimized. [1]
If the buzzing is at a higher frequency and resembles a crackling sound (like the sound of Velcro being pulled apart), and originates from the upper middle back of the TV, you likely have a failing SMPS board. Place a support call with Samsung to have the SMPS board replaced.FP-T5084 Have a known buzzing problem with a very simple fix.If the buzzing is coming from the left or right sides of the rear and the volume can be changed by pressing lightly on those locations, you are probably hearing the vibration of the grounding springs on the back panel. Call Samsung (or whoever) and have a technician confirm the problem. The easiest fix is to insulate the offending spring by applying some felt tape.

May 22, 2010 | Vizio P2 42 in. HD-Ready Plasma Television

1 Answer

PS8 Subwoofer started buzzing non-stop


with nothing connected and the sub turned on....Most subs buzz when the circuitry starts to fatigue. The last time I heard this ..the repair ended up being one of the two fat capacitors inside the sub. I have a means of testing this,,you may not. I am a repair shop with a bit of experience in component level board repair.

May 06, 2010 | Proficient S12 Subwoofer

1 Answer

Buzzing alarm sound before ignition


The yellow or red light would mean a control board that is bad or going bad. The buzzing sound could just be the transformer not uncommon to hear a buzzing sound from the transformer.

Dec 16, 2009 | Heating & Cooling

1 Answer

Constant cycling every 4 minutes...then goes to defrost


you may have defrost problem you will have to call them

Apr 07, 2009 | Kenmore 73502 / 73504 / 73509 Bottom...

2 Answers

Buzzing in television


Sounds like power supply buzz. Usually means dried- out electrolytics, U need a serviceman. Could be frame buzz, but I think unlikely.

Jan 19, 2008 | Sanyo DS24425 24" TV

2 Answers

Buzzzzzzz


Hello to all you buzzers, I have the answer to your problem. First this is what's happening. The buzzing is coming from the power relay. It vibrates at 60hz because the power supply filter capacitor is not doing its job hence you have a rough d.c. pulse going to the relay.To solve the problem remove back of t.v. slide circuit board out (you will have to disconnect white wire from degauss coil,located on left front) look for a blue box approximately 3/4"x1 1/2" this will be the power relay. Now look for capacitor location #c622 near the relay. This capacitor should be 470uf 25v. Remove and replace with 470uf 35v capacitor, connect white degauss wire temperarily put back on and give it a spin. Hope this solves all the buzzin,robert

Jul 12, 2007 | Sanyo DS24425 24" TV

Not finding what you are looking for?
Zenith P42W34P 42 in. EDTV-Ready Plasma Television Logo

67 people viewed this question

Ask a Question

Usually answered in minutes!

Top Zenith Televison & Video Experts

The Knight
The Knight

Level 3 Expert

72640 Answers

matt martin
matt martin

Level 3 Expert

1207 Answers

Jaime Hernandez

Level 3 Expert

2296 Answers

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

Answer questions

Manuals & User Guides

Loading...