My coby tv tftv3229 will come on when you turn on the tv

SOURCE: TV won't come on.

I Have this same problem, Open the box on the top of your tv and unplug the wire with the white plug. The tv will switch on but u can't change channel. Hope u have receiver to change channel. If u have solution for the volume, tell me please. Ty

SOURCE: Flashing power button no picture or sound!!!

Ive had this problem... Usually all that is needed to be done is a few reboots... First unplug and let sit for one min and then plug in and allow three mins for it to boot... Didnt work retry and retry

SOURCE: power button comes on but no sound or picture

CAN YOU TELL ME THE PART # ON THIS BOARD

SOURCE: We have a Visio Model # VA26LHDTV10T manufactured

Hi,

This is an indication of out-of-regulation condition in the power supply board. This is caused by leaky/dried electrolytic capacitor on that board. In the first stage of the symptoms, warm-up will make it self stable but it will get worst, time will come that the unit will not even power up.

Leaky electrolytic capacitor has a physical indication of fault like bulged/dome at the top and can be easily identify by visual inspection. See sample picture below.


Leaky electrolytic capacitor with dome at the top.


If your unit is not under warranty period, open the back cover and inspect this part in the power supply board(where the power cord's directly connected). If you found it, replace it with same capacitance and working voltage that is printed on its body itself. Watch the video below for more info.




Dried electrolytic capacitor has no physical indication of fault. You must have a capacitor checker if you are going to DIY to determine its condition and pinpoint the faulty one. If not available, you may replace all electrolytic capacitor in the output of the power supply board except the largest capacitor(main filter electrolytic capacitor), it will not cost you much because this is one of the cheapest part on that board. Another option is to replace the entire power supply board for your convenient, it will not required any soldering. Click this LINK for the replacement or obtain it from your local service center.

Hope I helped you.
Have a nice day!
Thanks for using Fixya.

SOURCE: My coby tftv3229 wont turn on and I've only had it

If its two weeks old why are you here? Take it back to point of purchase and either have it fixed or replaced or get a refund.....

From the brand you likely are in UK but here all sets come with some kind of warranty==the problem sounds like a power supply issue but if you have a warranty and open the set it will void that warranty.