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I have a Polaroid 37" (flm3732) that makes a loud whineing noise that also sounds like an electrical arc for the first 15 min after turning on. The time period seems to be getting longer as the days go by. Also if you try to mute sound or change channels when first turning on the TV locks uo and you have to unplug and start over.

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Symptoms of a Defective or dying Power supplies on LCD TVs.
1. Light(s) on the front panel are behaving not normal example, blinking, amber color or not steady, fainting, etc.
2. TV not turning ON properly.
3. TV turns OFF by itself.
4. Needs to be unplug to many times to make it work.
5. Humming or high pitch noise heard through speakers or at the back of the TV.

I repair these power supplies. Write to jah2mil@hotmail.com if you require further assistance.

Posted on Mar 11, 2009

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My samsun fp-t5084 is making a loud whining noise


its either a fan going out or power transformer. take the panel off and turn on the unit while being careful not to touch anything at all while power is to the device. plug it in and listen so you can identify the component. If its a transformer (it would more than likely be square and wrapped in a thick polymer sheeting.) it will be fine, possible for good. If its the fan making noise, you will typically have 9-12mths from the time you first here the sound before the perfomance is affected.

SO, to make a long story short, a hummming sound is typically the sound of electrical variations in a component, whining is normally a rubbing action within metal and plastic components.

(plastic on plastic makes a squeek, metal on metal a higher pitched squeek)

Jun 04, 2010 | Samsung FPT5084 50 in. Plasma HDTV

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We have a Polaroid TV, Model FLM3732. When we turn the TV on, there is a loud pitching noise that lasts for 3-5 minutes, and then goes off and runs normally. Is there anything we can do to trouble shoot?


The high pitch you are hearing is probably due to failing electrolytic capacitors in the power supply module. Eventually this will no longer function. A tell tale sign would be swollen caps "tops are convex" on this pc board usually 1000mf 25 v caps or simular. I would refer to competent tech for repair of module to component level.

Mar 04, 2010 | Polaroid FLM-3732 Television

2 Answers

I have a Polaroid 37" LCD TV (FLM3732)


it could be 2 caps on the power board, i had the same problem and for $3.39 at Radio Shack solved it.
There is a link on hre with pictures and instructions from stiv0, that works. Of course your on your own if you try it.

Sep 30, 2009 | Polaroid FLM-3734B 37 in. LCD HDTV

1 Answer

Buzzing sound


Hello, This is a problem with the switching transformer or the ballast used to fire the backlight. You will have to replace the ballast and or the switching transformer soon. In order to replace these items, I would suggest taking it to a qualified TV technician for servicing. I hope this helps, Thank you, Shuttle83 http://www.electron-age-technologies-llc.com

Jun 10, 2009 | Polaroid FLM-3734B 37 in. LCD HDTV

2 Answers

Polariod LCD FLM3732 does not show picture but has power


Its possible that you have some bad Electrolitic Capacitors. They are a very easy fix and very easy to see if they are bad. I have some vids posted on youtube on the fix for this. It only costs a few dollars to do. Just search on youtube for flm3732 repair or go right to my channel youtube.com/raider2845 and watch the 5 short vids I had posted.

May 26, 2009 | Polaroid FLM-3732 Television

1 Answer

POLAROID FLM3732


There is an easy fix for this. You can go to youtube and look up flm3732 repair or just visit my channel my sn is Raider2845. It only cost me a few dollars to fix the tv. Its very easy and just about anyone can do this.

Mar 14, 2009 | Polaroid FLM-3734B 37 in. LCD HDTV

1 Answer

Polaroid hdtv flm 3732 37''


the noise is probably due to bad caps-stiv0 has tips on how to change capacitors. I had the same noise and tv would come on after plugging and unplugging but eventually stopped coming on. I just changed the caps and now it works perfect and took approx. an 1hour and supplies cost approx. $10.00. Good Luck

Mar 11, 2009 | Polaroid FLM-3732 Television

2 Answers

Loud popping noise


The 23" CRT set may have a high voltage breakdown in the flyback transformer or focus divider. Take the back off and operate the set in a dark room. Look for anything that has a blue glow around it or sparks flying when the pop occurs. I won't guarantee this will find your problem, but it is definitive if you see these!

I once had a set with these symptoms. I stopped the blue glow and arcing by covering the focus divider with epoxy. It worked for a couple of months before the divider literally broke apart.

Mar 02, 2009 | Polaroid TLA-04011C 40 in. LCD TV

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