20 Most Recent JVC HD-56G787 Television Questions & Answers

By poor color quality, do you mean that if you turn the color control all the way down, the black and white picture is more like black and red, green or blue - or do you have a good black and white image? If the B&W image is good, and the TV is an old (8+ years) one, maybe the mirror inside the set needs a good cleaning - especially if there are smokers in the room. If you have a B&W picture that is tinted, then you may have to go into a service menu to adjust it back to a better picture. Hard to guess the problem without more specific description of symptoms.

Hello
As your tV doesn't give you a chance to enter into its Menu option, you can't check with its reset function. The only way to reset it is, to unplug it from the wall power socket, and left it idle for at least three hours. Do this and check. if it also doesn't help, you ave to contact the authorised service center for JVC at your town. The main system control and its memeory section will have the trouble. This is ofcourse not a user repairable one. OK.

Power supply board have the problems and the causes.It failing and not giving the tv the wright voltages to the rest of the tv anymore.That the board,where the board the power a/c cord plug into it.Tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish power supply board for the replacement.

Captions are in the closed caption menu, either the one in the set OR IN A BOX IF CONNECTED TO THE SET--EITHER PLACE IS POSSIBLE---and if you cannot turn off as you do not have the remote you may be out of luck....

Yes, contact a local JVC authorized repair shop--if I remember this model correctly it had this issue: missing a color or wrong color, picture backwards or even upside down.What was involved at the time was connection of the set to a computer and two files downloaded from their site---there is a multi-pin plug inside the rear of the set (have to remove cover) that when the process is done will reset the processor in the set to correct any or all of the above issues.The process requires the jig JVC designed for this and hence you want a JVC dealer. When we did them they provided the jig/

buy a new one

Take a good look at the screen on an unused video input to see if you seem them(a dark room works better).This could to my thinking be either dust (based on the brand/model posted here-let me know if different) on the optical lens this set uses OR a defect in the optical light engine.Also, I am aware this model does have software upgrades for different issues----when first out we had them and had to go to the site and download upgrades (two of them) and manually install them with a computer into the set---issues then were wrong colors and even lettering backwards........

Get a zenith universal remote with enter button, go to channel setup and it will apear cable- air, choose cable but press enter on the remote and it will start to program itself and let it finish, it will take like 10-15 min to scan