Top 20 Coby 40 TFTV4028 LCD TV Questions & Answers

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I have a Coby TFTV4028 and just bought a sound bar which only works when on the TV input but is not recognized on any other inputs. Is there a way to fix it?

The only audio output I see is the headphone jack from which to run the sound bar input. Is the sound bar surround/expanded sound features? Check the audio setup menu on Tv, the sound bar input selection, and try a cord from the headphone jack to the sound bar, if you haven't already. There should always be 2 channel stereo at the head jack unless it's turned off in tv menus. I see the owner's manual is very poor.
10/26/2017 9:15:03 AM • Coby 40 TFTV4028... • 1,021 views • 0 helpful votes
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Tv keeps shutting off on

Take it back to where you purchased it and get a full refund.
10/9/2017 7:03:03 PM • Coby 40 TFTV4028... • 149 views • 0 helpful votes
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Need fix how do i make it stop flickering

Coby lcd tv keeps flickering Flat Panel Televisions ... - Fixya

www.fixya.com > ... > lcd tv keeps flickering > Flat Panel Televisions
Coby flat panel televisions lcd tv keeps flickering related questions and answers. Ask your Coby ... Why does my Coby 40 TFTV4028 LCD TV keeps flickering.

Coby adjust air fuel mixture Flat Panel Televisions ... - Fixya

www.fixya.com > ... > adjust air fuel mixture > Flat Panel Televisions
Coby flat panel televisions adjust air fuel mixture related questions and answers. Ask your Coby ... Coby 32 in tv ... to last channel, and will stop, and will display the first channel it has got. Then we have to make adjustments on channels. ... Ad. Question about 40 TFTV4028 LCD TV. 1 Answer ... Flickering can be adjusted.

Won't turn. on red standby light changes to on but then

1/4/2016 1:16:39 AM • Coby 40 TFTV4028... • 812 views • 0 helpful votes
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I have a 40 in. Flatsceen with a vertical black line and 4 small black spots

LCD Panel faulty. If you wish to get some details; check the site linked here. Pull up older posts. http://electro-medical.blogspot.com/
4/2/2016 12:21:58 AM • Coby 40 TFTV4028... • 66 views • 0 helpful votes
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How to test my tv to find bad part to replace ?

Mr. Folk have you took a flashlight when picture goes off and shine in screen and press like menu button and look to see if you can see any letters or anything, if so you probably have a defective screen assy or backlight. This may help?
2/8/2016 10:45:04 PM • Coby 40 TFTV4028... • 70 views • 0 helpful votes
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How do I fix it

If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electro-medical.blogspot.com/ http://electronicshelponline.blogspot.com/ Faults & possible causes to LCD screen are given with illustrations. You can get an idea about the fault to an extent.
1/4/2016 1:13:12 AM • Coby 40 TFTV4028... • 87 views • 0 helpful votes
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Tiny bars running through bottom half of screen

T'Con board fault. Replace it. If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/ Line, faults & possible causes to LCD screen are given with illustrations. You can get an idea about the fault to an extent.
7/21/2015 3:18:11 AM • Coby 40 TFTV4028... • 77 views • 1 helpful votes
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MY COBY FLAT TV HAS DOUBLE VIDEO, ITS A SHADOW AND KEEPS ON FLICKERING

Contact any service technician. Flickering can be adjusted. But, if there are lines, the T'Con board too have to be replaced.
6/6/2015 3:34:21 PM • Coby 40 TFTV4028... • 186 views • 0 helpful votes
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MY FLAT TV SUDDENLY HAS LINES, THE VIDEO FEED SOMEHOW BECAME MULTIPLE LAYERED BECAUSE EVERYTHING I SEE IS DOUBLED...

If you wish to get some details; visit the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/ Type in the brand name of your device, in the search box [at the top right] of the display window and the Search will start at once as you type in, and will show you all the related posts. It will make surf easy. Line, faults & possible causes to LCD screen are given with illustrations. You can get an idea about the fault to an extent.
6/6/2015 3:39:17 PM • Coby 40 TFTV4028... • 76 views • 0 helpful votes
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Can a tv inverter board cause tv to not display

inverter board may be used to power backlight for the lcd display. If it is similar to laptop lcd displays in functionality . http://www.ehow.com/how_7501465_check-tv-inverter-board.html
4/17/2015 8:46:56 PM • Coby 40 TFTV4028... • 233 views • 0 helpful votes
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How di I fix the audio on my coby tv? I can hear a scratching sound only. I was able to connect to netflix via my ps3 and the audio worked. Is this something you can assist with

Unfortunately the failure to mention needs repair by a qualified technician. The solution that is easily accessible by changing the main board , but are now discontinued . I hope I have been helpful . Bye Bye
4/2/2015 1:44:15 AM • Coby 40 TFTV4028... • 136 views • 0 helpful votes
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Caught on fire and sparks flew out of back... What can I do? Got from HHGregg and they say there isn't any recall on THIS model, only the 32 inch. Please help.

If you did not purchase an extended warranty, or if the credit card you used to buy it doesn't extend warranty, I'm afraid you're going to be out of luck. If HH Gregg isn't backing you up , i would not buy anything from them again.
2/7/2015 9:10:21 PM • Coby 40 TFTV4028... • 152 views • 1 helpful votes
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Coby tv sound problems

If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/
8/26/2014 7:13:58 AM • Coby 40 TFTV4028... • 1,119 views • 0 helpful votes
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My tv humm

Usually Hum in audio can occur due to the main power supply regulator board to the TV or damaged / shorted component/s at its audio output stage circuit. Your TV need a through check up to locate the exact problem. Contact any service technician. http://electronicshelponline.blogspot.com/
12/22/2014 5:13:39 AM • Coby 40 TFTV4028... • 37 views • 0 helpful votes
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My coby tv won't turn on or control the volume with ether cable remote or original remote

Hi, we had that problem the first two days we purchased our set. Fortunately they replaced it with no problem. I hope you purchased an extended warranty, Coby is out of business but warranties are still being honored...I don't know of a fix for this..Basically the Coby is a dud..I wish you the best! let us know how it turns out.. Herb
7/27/2014 7:34:44 PM • Coby 40 TFTV4028... • 1,165 views • 0 helpful votes
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Where can I find the Coby LCD TV code for a universal remote

Coby uses Samsung parts in their TVs such as the screen itself and the control board. My suggestion would be to try Samsung remote codes. I did this with a Coby 40" LCD TV
5/27/2014 1:51:54 AM • Coby 40 TFTV4028... • 338 views • 0 helpful votes
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Hooking up a sony dav is 10 to my 40 inch coby lcd tv

Hi, unfortunately Coby is not manufactured any longer. I have a problem not the same as yours, but I can't use my headphone when using my Panasonic Blu-Ray player. Have to use the sony digital surround sound. nothing comes through the Coby...If you have an extended warranty, I would call and have it replaced with another 40 inch brand..They can't fix it.I'm calling to have mine replaced or repaired...sorry i couldn't be better at helping..
7/5/2014 1:43:34 PM • Coby 40 TFTV4028... • 110 views • 0 helpful votes
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My 40" Coby flatscreen is getting power but wont turn on....any solutions?

Replace the defective power supply that is inside the TV set.
5/23/2014 5:17:29 PM • Coby 40 TFTV4028... • 351 views • 0 helpful votes
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