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Reply HI my tv is a segam htd501 dlp I don't know how old it is because we bought it second hand 2years ago, not sure if that helps sorry. Anne-marie.

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I recently came across this article and I really think that it will be helpful to you. I have had a few tv sets that have done the same thing as yours. I copied this article from and the full page link is High pitched whine or squeal from TV with no other symptomsFirst, make sure it is not coming from the loudspeaker itself. If it is,then we are looking at an unusual electronic interference problem ratherthan simply mechanical vibration.If it is a new set and think the sounds will drive you insane, returning itfor a refund or replacement may be best alternative. However, you may getused to it in time. I don't know about returning a set to a store thatdoesn't take refunds (I won't even ask about that!).
In most cases, this sound, while annoying, does not indicate an impendingfailure (at least not to the set - perhaps to your mental health) or signifyanything about the expected reliability of the set though this is not alwaysthe case. Intermittent or poor connections in the deflection or power supplysubsystems can also result in similar sounds. However, it is more likely thatsome part is just vibrating in response to a high frequency electric current.
There are several parts inside the TV that can potentially make this noise.These include the horizontal flyback transformer, deflection yoke, othertransformers, even ferrite beads in the horizontal deflection circuits. Inaddition, transformers or chokes in the switching power supply if this isdistinct from the horizontal deflection circuitry. Or even a portion of thesheetmetal used for shielding if in close proximity to a magnetic component.
You have several options before resorting to a 12 pound hammer:

  • As much as you would like to dunk the TV in sound deadening insulation, this should be avoided as it will interfere with with proper cooling. However, the interior of the entertainment center cabinet can be lined with a non-flammable sound absorbing material, perhaps acoustic ceiling tiles. Hopefully, not a lot of sound energy is coming from the front of the set.
  • Move the TV out of a corner if that is where it is located - the corner will focus sound energy into the room.
  • Anything soft like carpeting, drapes, etc. will do a good job of absorbing sound energy in this band. Here is your justification for purchasing those antique Persian rugs you always wanted :-).
If you are desperate and want to check the inside of the set:

  • Using appropriate safety precautions, you can try prodding the various suspect parts (flyback, deflection yoke, other transformers), even lowly ferrite beads, with an insulated tool such as a dry wooden stick. Listen through a cardboard tube to try to localizing the source. If the sounds changes, you know what part to go after.
  • Once you have located the guilty party, some careful repositioning, a strategically wedged wooden toothpick, or a dab of RTV silicone or hot-melt glue may keep it quiet. Where the yoke is the guilty party, see the section: Reducing/eliminating yoke noise.
  • It is possible to coat the flyback transformer, but this is used mostly when there a loose core or windings and you are getting not only the 15,735 Hz horizontal (NTSC) but also various subharmonics of this. This is probably acceptable but may increase the temperature of the flyback.
  • A replacement flyback (or whatever part) may cure the problem unless it is a design flaw or manufacturing quality problem. However, the replacement part could be noisier. You really do not want to replace the yoke (aside from the cost) as convergence and other service adjustments would need to be performed. Other transformers can be replaced.
Note that the deflection frequency - just over 15 kHz for NTSC and PAL - ison the border of audible for adults but will likely be loud to younger peoplepossibly to the point of being terribly annoying - or worse. If you areover 40 (men more so than women), you may not be able to hear the fundamentalat all (at least you can look forward to silence in the future!). So, evensending the TV back for repair may be hopeless if the technician cannothear what you are complaining about!
BTW, if you have a really old tube type TV, the power tubes (damper andhorizontal output) can also whine but these sets are few and far betweenthese days :-). Hope this helps...

Posted on Sep 10, 2008

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My tv mitsubishi wd-60735 turns on for about 2 min. then shuts off and red lamp light turns on,,,The lamp is only 3 months old.. Do I just need to replace bulb again or is it something else???

Don't know if this applys to you but if you have purchased anything but Osram or Philips replacement lamp for your DLP tv then this is probably your problem.. The generic is VERY tempting in this recession but in this case generic is poison to your dlp tv... i have a Mitsubishi 60735 and went thru 2 generic bulbs when my tv kept shutting down on it's own and the lights on front would flash, i could cut it back on for 10 minutes then flicker and shut down again ..well since the bulb was new i thought it may be defective so i got is exchanged for another one ... after all of the post i have seen how much repairs were going to cost on dlp sets no matter what the problem was ..i was ready to chunk the tv out the door when the second lamp was doing the same thing.....!! well a last ditch effort to save my tv before i trashed it or taking it apart to dissect it.. was to buy a brandname lamp ... in my case i purchased a Philips cost twice as much =/ ..i could just return it if it didn't work.. well it was the generic lamps that was causing trouble.. the brandname worked perfectly .. i am just glad the generic lamp didn't do any damage to my TV!!! I have done further research on the generic lamps and realized that the damage it could have done was not worth the money i saved when i purchesed it... Generic is a great deal In some cases (household cleaners, etc..) but in this case GET THE NAME BRAND!!!! the only name brands i know of for these lamps are Philips or Osram/Sylvania.. hope this helps others from this headache. Do your research don't by generic lamp replacements, your DLP set cost to much to risk it.

Jul 20, 2011 | Mitsubishi WD-60735 Projection Television

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I have white and black spots on my 65in hd1080p what is it tv is on 2 years old

Hi, I have a mitsubishi 65" DLP model # 65733 that I bought in December 2007 brand new, about six months ago I started spoting white dots on my screen that started blinking and then became permanent, thinking is was dust I cleaned everything inside with compressed air without success.
The stars multiply daily to a point that it was intolerable to watch anything with all the white stars and a few black ones that showed up.
We called mitsubishi but got no where, I was out of warranty. (they still deny having a problem with their DLP's)

I had a service tech inspect the tv and was told it could run about $800 to $1000 to replace the light engine with refurbished parts with 90 day warranties.

Researching on line I came across a DLP chip that is compatible with several mitsubishi and samsung models, so I decided to chance it, and replace just the DMD chip before we trash the tv, it was unthinkable to pay $800 to repair a tv that we could buy now for under $900.
Thanks God the "gamble" paid out and the problem got solve with just $150 DLP chip in about 15 minutes of my time.
If you are not mechanically nor electronically inclined, I recommend you use a technician for the installation, but don't let anyone tell you you need to replace the whole light engine, it is a ripoff.
If your problem is just white or black dots on the screen that do not move.......this will solve your problem!!

P.S. Hope this will help you and for the record..... "I will never buy a mitsubishi product again".

May 15, 2011 | Mitsubishi WD-65733 65" HDTV

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I have a Philips model number 50PL9220D/37 and it turns off after about 30 seconds and a red light on the left hand side of the power button comes on. Not sure what to do.

I have a Philips model Problem with the Philips 50PL9126D/37B 50 in. HDTV DLP TV I have a Philips model number 50PL9220D/37 and it turns off after about 30 seconds and a red light on the left hand side of the power button comes on. Not sure what to do.

Apr 22, 2011 | Philips 50PL9126D/37B 50" DLP TV

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I have an LG DLP. that turns off after 15 -30 seconds

If the second light is blinking to orange or red, that is usually the lamp indicator light on an LG DLP tv. That indicates your bulb needs replaced, or something surrounding the bulb has failed (like the cooling fan for the bulb for example) IF you have a spare bulb handy, I'd replace the bulb, keeping in mind if you touch any part of a new bulb with your bare hands, you just cut the life of the bulb by more then half.

Jul 30, 2009 | LG RU-52SZ51D 52" Rear Projection...

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Numerous white spots on Smasung DLP TV

If your Mitsubishi TV has white spots in the picture , you can call Mitsubishi @ 1-800-332-2119 and request a free DLP Chip to fix the problem. They will send the New DLP Chip at no charge to a TV Tech in your area to install it for $200 flat rate. That is about a $250 savings if you had to pay for the chip . Call them with your TV's Model number and serial number and let them know when and where you bought the TV.
It saved me some hard earned money and now my TV is like New !

May 02, 2009 | Samsung 50" Slim-Depth DLP HDTV

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My Samsung 50" DLP HDTV keeps humming when the DLP lamp comes on.

Hi, you have one of two problems, either the color wheel is going or one of the cooling fans are going, the color wheels are a very common problem in samsung dlp`s, sorry I can`t nail it to a specific part but I`d bet it`s the color wheel as they are notorious for failing in samsungs, video-tek

Mar 17, 2009 | Samsung HLR5067WX 50" Rear Projection HDTV

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Mitsubishi Projector DLP TV

This problem is covered under the mitsubishi extended warranty for the 73" dlp. I would try contacting them to see if they will cover it. Not sure how they will handel it because you bought it second hand. If mitsubishi will not cover the repair the first thing you need to try is removing and re-seating the dvi cable between the o-block and the chassis inside the tv. mitsu claims this to solve the problem sometimes but i myself have never had it work. the only other thing to do is to replace the optical block assy. this is an expensive part. let me know if you have more questions!

Tim Nolan

Sep 24, 2008 | Projection Televisions

1 Answer

Rear projection tv

How old is your TV and what is the model?

Sep 08, 2008 | Projection Televisions

1 Answer

Samsung DLP

try this and see if it makes a difference
open the lamp door look for the blue switch(bottom left i think)
take the loose wire(blue and white) wrap it over the switch to hold it back
and while your back there make sure you dont have a lot of dust blocking the vent on the back cover

Mar 11, 2008 | Samsung HL-S5687W 56" HDTV

1 Answer

Complaint, Ref#62024 Purchased a Philips

Thank you for your reply, I am sorry I thought this site also took complaints about Philips products, my apologies.

Mar 08, 2008 | Projection Televisions

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