Question about Polaroid FLX-374 37 in. LCD TV

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We have a Polaroid 37" HD tv that has a loud

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  • Polaroid Master
  • 1,229 Answers

You have weak capacitors in the power supply and the signal board. I have not repaired this particular unit, but have experienced this with other Polaroid TVs. You will need a TV tech to replace those capacitors. It is a very time consuming task and requires patience and much care to remove the capacitors. Tell a tech that they must be very careful when they remove a cap in the signal board, as they can peel off a pcb trace. In most cases they replace the signal board, but the capacitors can be replaced! Thanks for asking and show a few hands of support!

Posted on Jan 03, 2011

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Posted on Jan 02, 2017

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I have my computer monitior hooked up to my polaroid flat screen tv. Worked fine for a while, then got a blue screen that says "not support". It has also been making a loud screech and a crackaling noise....


The 'NOT SUPPORT' message is due to the video signal resolution form your PC is too high for the TV to display, you need to set your PC video resolution to the native resolution of this TV.
Loud screeching sound may be causing by failing amplifiers if it comes through the speaker or may be from the power supply module due to bad/dying DC filter caps.

If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on:

Please see my basic troubleshooting guide here:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide

Failed TV and Monitors: http://s807.photobucket.com/home/budm/allalbums

http://en.wikipedia.org/wiki/Capacitor_plague

Parts: www.shopjimmy.com
Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx he can make you a set of caps.

Sep 01, 2010 | Polaroid Televison & Video

1 Answer

37" Polaroid HD LCD black display but appears to be "on"


The power supply board was having problems before.That the board,where the power a/c cord plug into it Now might also the Tuner board are dead too.The tv Tuner board,that the board where the tv broscast signal cable plug into it.That the Tuner board.Tries Websites like shopjimmy.com,Ebay.com to buy a refurbish power supply board for the replacement to see if solved the problem,not probally will have to buy the refurbish Tuner board for the replacement too.

Jul 13, 2010 | Polaroid FLM-3734B 37 in. LCD HDTV

1 Answer

I need a power cord for a polaroid HD TV 81.5 INCH


Try using the power cord from your PC. NEMA5-15P to IEC C13.

Jul 12, 2010 | Polaroid FLM-3734B 37 in. LCD HDTV

1 Answer

Hissing sound when turned on and goes dark when sound stops.


takes long time for tv to come on, there is a loud buzzing sound and poping noise

Mar 16, 2010 | Polaroid FLM-3734B 37 in. LCD HDTV

1 Answer

LCD HDTV turns off, displays lines & static w/ loud noises


check in your manual and follow instructions on updating the software. you download the file to computer then move it to a memory stick (USB), then simply insert it into the tv

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1 Answer

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it's the power board (transformer). Buy on ebay for 99.00 and replace.

Jul 03, 2009 | Polaroid Televison & Video

1 Answer

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sound like the volume is locked out you can access this in the main menu to unlock it

May 29, 2009 | Polaroid FLM-3734B 37 in. LCD HDTV

2 Answers

High pitched noise


The power supply is starting to fail on your LCD. The noise you hear is because the circuit is trying to provide the proper power to the rest of the circuitry and is forcing itself.
The noise does increase if you tune to an HD channel because of more demand for power for a brighter picture.
Let me know if you need further assistance.

Sep 18, 2008 | Polaroid FLM-3734B 37 in. LCD HDTV

1 Answer

My TV won't turn on


That was my problem.

http://www.fixya.com/support/t293971-37_polaroid_lcd_tv_turn

Jun 19, 2008 | Polaroid FLM-3734B 37 in. LCD HDTV

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