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Hi, thanksfor visitingFixYa.To give youa better ideaabout your problemTV.Pleaseplace theTV model, is located inthe back ofTV.is veryimportant to knowthat information.Could havefaultycapacitorsin thepowersupply.I hopeyou let me knowthe modelTV thanks
The unit has lots of problems and njeeds professikonal intevention. The main transformer has collapsed along with some of its video components. You kmay have noticed some shrinkage of the picture before it stopped altogether? cost to fix about $180-200 probably be able to pick up a second hand one for the same cost.
The zapping noises are coming from the flyback transformer which is also why you do not have a picture. JVC discontinued this model so it is a good chance there are no parts available to fix it. You would be better off buying a new tv.
You need to turn off OVERSCAN in your computer display controls. This will reduce the picture size by 5 to 10% and allow access to the edges. Expect there may be an edge around the screen with nothing in it. Overscan was introduce in TVs to use the whole tube. It is not needed in digital displays.
If you promise not to touch the wrong thing, you can adjust the
screen and focus knobs on the high-voltage transformer (what we call
the flyback). Do you see the big red wire going to the CRT tube?
That is the anode lead of the high voltage (around 25,000 volts).
The thing that it goes to on the circuit board has 2 little knobs
coming out the back of it. Try adjusting those (use a tool with
insulated handle if you please) to increase the brightness and improve
the focus. When the screen adjustment is all the way up and it is
still too dark - then its time for a new TV.
I have the same model TV, also without a remote. I found a Philips universal remote model CL019 at Big Lots and it works just fine. However, for some reason when I tried to program in the channels it would only program in up to channel 23, and then after about 15 seconds add channel 60. Can anyone help?