20 Most Recent Coby 40 TFTV4028 LCD TV Questions & Answers

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.

Take it back to where you purchased it and get a full refund.

A defective main board.

I'd add something to this. We had the same issue with a 40" coby. We'd declared it dead and after a few days turned it on again to show the problem before trashing it. The TV came on. We've since learned that there seems to be a HDMI handshake issue related to this tv. If you turn it off with HDMI devices still sending a signal, it will periodically return to this point, and take a day before it will turn back on (I guess until the caps are fully drained.) If you turn the TV off first and then devices however, this never seems to happen. Dunno if this is the same for others, but I'm curious

LCD Panel faulty. If you wish to get some details; check the site linked here. Pull up older posts. http://electro-medical.blogspot.com/

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?

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.

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

Replace the defective power supply that is inside the TV set.

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.

Details about COBY 40 TV Glass Base for TFTV4028 Stand Complete with...

Contact any service technician. Flickering can be adjusted. But, if there are lines, the T'Con board too have to be replaced.

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.

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

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

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.

sounds like a bad mainboard or power supply

unfortunately the coby company has gone out of business probably because they have produced an inferior product that has had many, many problems, many people are posting problems with these sets. it is better you just purchase a different brand of tv and leave this heartache causing product behind.

the coby company has gone out of business probably because they have produced an inferior product that has had many problems, many people are posting problems with these sets. it is better you just purchase a different brand of tv and leave this heartache causing product behind.