20 Most Recent Coby 40 TFTV4028 LCD TV - Page 3 Questions & Answers

083,088,081,087. Try these codes. If you wish to get more codes and other details check: http://electrohelponline.blogspot.com/ http://electro-medical.blogspot.com/ Both the sites have setup code list, and setup procedure to many popular brand remote controls. Check the site in 'Mosaic' view. It will make search easy.

To a weak contrast, what are you going to do by entering its service mode? Anyway, to get more about this, check the site linked here. It has service mode entry procedure to many popular brand TVs. Pull up older posts.

There should be a direct short circuited component/s at its main power regulator board. Check for it. To get some information, http://electronicshelponline.blogspot.com/Pull up older posts.

Looks like you might have issues with your screen it self the lights and all internal issues. You might have to take into a repair shop to get it done, a fuse might have been blown up. If you have warranty try to take it in and get it fixed.

Sounds like a main board fault. Contact any service technician. If you're sound in electronics, and wish to get more details, check this link. http://electronicshelponline.blogspot.com/ Selecting the view option, either to Mosaic / Flip card, can be selected by the drop-down list, by the top left of the display window, will make surf easy. You can also do a search, by type in the brand name / model number / IC used, in the search box at the top right of the display window. google.com/+GopakumarGopalan

Didn't see any replacement remotes for sale on their site, but here is the link to the page where you can send their customer service an e-mail:http://cobyusa.com/?p=supportAlso, I think there are enough Cobys floating around now that you should be able to buy a third-party replacement at a retail store.

You must have its original remote control to do this. If you have it, just press the button marked 'CC' on the remote control once.

There are several different versions of the VGA and likely yours is not compatable with your unit.

replace mainboard and powersupply board

There is no setup codes for this TV with this remote control. Do a code search. If any code matches, you can win. If you want to know about code search method, check this link.