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High pitch whine when tv started then it lowers in pitch

When I start the tv it has a high pitch whine which quickly drops in pitch until it stops, then the whine starts low and climbs until it hits a high pitch and then stops.. Comparable to when you hear a siren start at a high pitch, drop down low and then back up. Any ideas? Lamp and color wheel haven't been replaced in over 2 years.

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That could be either the color wheel or one of the fans. try listening to which area of the set its coming from.

Posted on Apr 04, 2012

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6 Suggested Answers

6ya6ya

6ya staff

  • 2 Answers

SOURCE:

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Posted on Jan 02, 2017

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rustym62

Rusty Morales

  • 201 Answers

SOURCE: RCA HD61LPW42 - no picture

I haven't worked on an RCA DLP but have on Samsung DLP, based on your description it sounds like the color wheel is bad. Take the back off and turn on TV make sure its not a fan making the noise ,but most likely its the "wheel" it is inside the light engine probably right next to where the lamp is plugged in. If the whine comes from this area definitely the wheel.

Posted on Apr 26, 2009

Anonymous

  • 1 Answer

SOURCE: Samsung DLP Flickering

If you're certain the lamp is good, it's probably the ballast. The ballast has enough juice to power the lamp, but it's unable to maintain a steady consistent level of power, hence the lamp flickering. Changing the lamp may temporarily resolve it because a new lamp is more easily maintained than an older one, but if the ballast is failing, the problem will recur and probably shorten the life of the lamp. The ballasts cost around $70-80. Replacing it can be done by the electronically adept end user, or you may need a service tech. The problem with a service tech is that some may not acknowledge that the problem is the ballast especially if the intermittent flicker is not happening while he/she is examining it.

Posted on May 28, 2009

Cary Leonardt

  • 304 Answers

SOURCE: the television started making a high pitched

The color wheel is bad and must be replaced by a trained tech. Do not attempt yourself. Too tricky. Part# BP96-00250A

Posted on Jul 16, 2009

Slinteriors

Sonny Berry

  • 8617 Answers

SOURCE: Samsung DLP TV repair or replace that is the question!

Color wheel sounds like it needs replacement. The set will often shut down when the color wheel gets bad and wont power up.

Posted on Jul 10, 2010

Kaufman605

  • 608 Answers

SOURCE: Have a Samsung DLP hln507w1x xaa. When you start

I had a similar problem with my 42 in Philips LCD HDTV. Here was the problem. My Power Supply Board had several bad capacitors. I opened my TV (warranty was expired ofcourse) and found four bulged capacitors on the PSB. Many major electronics companiesPhilips/Magnavox, Sony, Panasonic, and others were sold capacitors that failedin 2-5 years instead of 10-20. Thecapacitors fail prematurely due to a lack of preservatives. Unfortunately, they were installed in allsorts of devices and cause a wide range of failure problems. Here are some options for you. 1. Have it fixed by a professional $$$$$$$??????? (Is itunder warranty?) Remember, TVs CONTAINHIGH VOLTAGE AND CAN KILL YOU! Do this at your own risk. 2. Open your TV and find PSB. (The board that the power cordplugs into) Check for faulty caps. If you find some (bulged or leaking) bad capsreplace the entire board. The entireboard costs around $250 right now because they are in high demand right now.They can be found at tv-part.com but supplies are limited. I would definitely shop around though. 3. Remove and then replace individual faulty caps. This takes some soldering skill. Caps are inexpensive and if you can take care of it yourselfit will save you hundreds. This may be your problem. If you determine that it might be. I have a Tip/How TO tutorialon this site that may also help. Itgives step by step instructions for replacing caps on PSB #715t2432-2. If this isyour board you are in luck. Here is theLink: Fixingthe Philips Turns/shuts off on its own problem. I'm working on uploading pictures to helpguide people though the process as well. Let me know if I can do anything to help. Hope this helps and if it does please rate itaccordingly. Good luck.Kaufman605

Posted on Dec 16, 2010

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