Question about RCA F27628 27" TV

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Loud hum when attempting to turn on my RCA F27628 27"TV

TV has been slow to turn on during the last few weeks. Occasionally will turn itself off. Tried to turn it on and a fairly loud hum (not sure of loaction), then a pop. The picture or sound did not come on.

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  • 3,130 Answers

Could be that the main b+ filter Capacitor went bad and blew up. Also could have been the horizontal output transistor shorted and the flyback poped. In eather case it would be recommended that you take this set into a repair shop unless your familar with HV circuits in tv sets. Good Luck

Posted on Jun 10, 2006

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Posted on Jan 02, 2017

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About a week ago I replaced the lamp in my samsung hls24266 with no incident. Now when I turn the tv on, I hear a very loud humming noise. I tried disconnecting the coaxial cable but it does not go away....


I can't explain the timing of your problem and why it showed up after lamp replacement, but Samsung color wheel failures are usually associated with a rather loud hum. I would removed the back, jumper the lamp door switch and try to determine exactly where the hum is originating from. I think you'll find the color wheel is the culprit.

Bill W
integrityhomeworx.com

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How do you know if the motor is going bad? Sometimes when I start it the motor will hum for a few seconds and them will start real slow. other times it wont start at all. can I isolate the motor to see if...


Three possibilities: the drum bearings may be worn causing hard turning, the motor bearings may be about worn out allowing the rotor to contact the stator inside the motor, and last, but maybe the most likely, the start capacitor, which is mounted near the motor, may be going bad causing weak starts at first, then no-start/loud humming finally. Take the belt off of the motor pulley and start the dryer--the motor should almost instantly be running full speed. You can test the motor bearings (when motor is OFF) by trying to push/pull the shaft in various directions sideways. Any obvious slop is a sign of worn bearings. Try turning the drum by hand to see if it turns fairly freely. Hope this helps!

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1 Answer

GU1500XTL loud humming sound during the cycle, getting louder


The run capacitor on the main wash motor needs replacing. Eventually it will just hum and overheat instead of rotating, so better replace it now before it overheats.

I doubt you can acces it easily yourself, as it may be away from the motor, and have to be tracked down.

Aug 05, 2009 | Whirlpool 24 in. GU1500XTLS Stainless...

1 Answer

TV makes humming noise, lamp light is blinking, does not turn on


Your color wheel needs to be changed. Mine just did the same thing. I changed mine, and the buzzing sound went away, however now my picture washes out with light or yellow colors. The darks look green and purple also.

Mar 28, 2009 | Samsung HL-R6167W 61" HDTV

1 Answer

No picture or sound


Hi, your color wheel needs to be replaced, the bearings fail causing the grinding noise, the new ones use "air bearings" so they are supposed to last much longer, video-tek

Mar 26, 2009 | Samsung HLR5067WX 50" Rear Projection HDTV

1 Answer

Screen shows only black and white


Color wheels do go bad quite frequently, if you got 5 years out of the original, believe me, that's good.
The color wheel is attached be a bearing, like a fan and when the bearing starts to ware out the color wheel on the shaft starts to wobble and that's what you hear, they spin I believe around 3000rpm. Try contacting your servicer again, don't be mad, maybe he'll be kind enough just to charge you for the color wheel. I'm sorry, but that's the best advice I can give you..Good Luck...

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Sunfire Mk II hum (different from greekboy post)


I had this issue a few years ago and the power cable from one of the inner terminals had come loose. It was still touching but whenever the sub would really pound it would jump off the connection and then reconnect causing it to hum. It was the most annoying thing ever so I finally pulled off the amp plate (super easy) and you could clearly see the loose wire. I had to use a good soldering iron to put it back on since it's a pretty fat wire. If you're not under warranty anymore then pop the back off and see if that's the issue.

-Dylan

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The color wheel is the most common problem in DLPs that cause noise. To determine the cause: Turn the set off. If the noise goes away after about five seconds, then, the problem is the color wheel. If the noise goes away one to two minutes after shut off, then, the problem is a fan. You can find an Authorized Servicer in your area that can tell you the price of repair, by clicking on the Samsung link: http://www.samsung.com/Support/ServiceLocations/index.htm

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1 Answer

TV will not turn on


Probably needs a new HV Splitter block, they are very difficult to replace and can usually be accessed thru the front behind the speaker grill and behind convergence board.

Mar 18, 2007 | RCA P46924 46" Rear Projection Television

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