it needs service, that means using tools and meters and spare parts to find cause.
dead screen black screened at all times.?
even in HD TV antenna mode for HD TV?
or just the remote CLICKER batteries dead.
tell things that work and no not work , even LED actions.
the maker has no books on this old TV
https://jvcproducts.com/us/contact/support.html
here they are ask them>?
what rare TV. good luck fixing any RARE TV.
moved you to TELEVISION.
Shut TV off. Reset TV & router and any cable or DSL modems by unplugging for a good minute then plug them all back in and wait at least a minute or two for all to reboot.
What happens to the image? If you wish to get some details; visit the site linked here. Pull up older posts.
https://electronicshelponline.blogspot.com/
I am guessing the CCFL tube is starting to burn out. Replacing is not impossible but somewhat delicate process.
Since the TV is that old i would recommend you to buy new TV instead when it goes completely dead.
moved you to television forum random model not told.
lost the remote
first TV ever?
and batteries died in remote, I am on set 24 batteries in 12 years.
see how batteries sux
all TVs have reset,
ever read the manual first after all no 2 TVs are the same.
so we read the manual
screen is dead but are menus dead.
the rear of all TV s made a label and we read it and the model is there. like my wild guessed one top of this page;.
post you real model or get no answers correct. ever.
if TV is older than 2010 CCFL lamps inside are dead. use flashlight to see that is ture or not.
on my TV the red LED goes out turned on, so you do no have to start at it forever, a huge pain that but must turn out or PSU is dead in TV or the silly batteries in the remote are dead, or weak
read that word 2 times for effect, WEAk.
Sounds to me like the digital pixeling that occurs with a weak signal. You have not identified whether this happens on broadcast/antenna TV, cable or satellite service, or a video input such as a DVD. This can be a common problem if you have a weak signal on any of those inputs. In any case, blowing out the dust will not help.
Unfortunately, there is a limitation on the JVC LT47P789 digital optical audio out. This audio output does not get the signal from any HDMI source. This is described on page 49 of the user manual. The manual is available from JVC here: http://resources.jvc.com/Resources/00/01/14/YA653ien.pdf . There is a similar restriction for the analog audio output from the TV with the HDMI inputs.
If you use the component audio/video inputs on the TV from your set-top cable box and DVD player, then the optical audio output will work. Otherwise, you need to find a way to connect the audio directly to the receiver. Some receivers have multiple HDMI input ports. These then forward the video signal on their HDMI output to the TV. Another option is to connect the analog audio outputs from the cable box and DVD player to the receiver. This may require resetting the Audio output from these set-top boxes to keep from sending the audio over the HDMI cable. With the Cinemate, you might need some sort of audio input switch or an HDMI converter and switch that separates the audio from the video signal.
I hope this helps. Please add a comment with more information about your devices for ideas on how to work-around the problem with this JVC TV.
Cindy Wells
If you wish to get some details; visit the site linked here. Pull up older posts.
http://electronicshelponline.blogspot.com/
faults & possible causes to LCD & Plasma screen are given with illustrations. You can get an idea about the fault to an extent. Faults to all LCD & Plasma screen are similar,
Fault at its main digital board. Short circuited component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Pull up older posts.
http://electronicshelponline.blogspot.com/
In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.
On your remote control there is an ASPECT button just above the channel+ button and slightly to the left of centre, its a round one. This button will change the picture aspect. You should this will solve your problem.
Main system control memory IC fault. This is a very small IC; have 8 solder terminals, and can be located very near to the main system control-chroma IC. Check and replace it. Be sure to replace it with the same number printed on it; in all respect. Otherwise, it won't go. http://electronicshelponline.blogspot.com/ Before replacing it, try a reset to this set, and then check.
There are two methods to reset TVs. The first is simple to do; a Hard Reset. The other is somewhat skilled; is a Factory Reset (System Reset). To make it a hard reset, just unplug the TV from AC mains wall socket, and re-plug it back after 15 minutes or so. If you do this by overnight is better. This procedure will make it a hard reset. If you want to make it a system reset [Factory Reset]; you have to enter its service mode option, and select the factory reset option. If you wish to get some details; check the site linked here.
