Jvc av-27s33 I am receiving eletronic interference on my tv. I don't have cable. TV works fine when the source (unknown) is off. Other TVs tried in the same location work fine.

What specific model of JVC multi-system TV do you have? What is the signal source?

The majority of the JVC multi-system TVs that I've researched only have analog tuners (NTSC, PAL). The AV-29LX is an example of the older JVC TVs. Since most over-the-air signals are digital, you will need a digital-to-analog OTA signal converter to watch any signal from an aerial TV. If you have a cable system that has upgraded to digital cable, you will need a cable box.

Converter boxes are harder to find but there are a few remaining. Here's one for the US: http://www.amazon.com/Magnavox-DTV-Digital-Analog-Converter/dp/B0013ZKZGU .

I wish that I had better news for you.

Cindy Wells
(A few low-power stations still broadcast in the analog format. However, you have to be really close to the station or have an outdoor antenna to have a chance at receiving the signal.)

To select the source you must have its remote control. There is no TV/AV source select button at the front panel of this TV.

Check its color system adjustments. It will be best to make a factory reset to this set. Just unplug the TV from AC mains wall socket, and re-plug it after 10 minutes of so. This must make your TV a hard reset. If this do not help you, the chroma section circuits of your TV need to be checked for fault/s. This is a skilled work, and it will be best to contact any experienced service technician.

I have the AV-27S33 model and in the rear to the right of the inputs are two slits and inside these slits are two screws. The top screw is the focus,the bottom the brightness.Your tv is a different model but it may have this same adjustment,if it does try turning the bottom screw to the right to increase the brightness.

please turn off the sap mode thats the second audio play mode in this case for spanish

If you have cable running to your house, cable still uses RF and older TVs work fine. The problem comes when you try to grab stations from the air. The signal is still UHF, but the information riding on that UHF signal is digital, and will need a converter box to turn it back to analog so your older TV will understand it. . Cable: None needed. . Antenna: Need a box.

Hello,
I just wanted to suggest some things for you to try, if you have not done them already. Try hooking up a known good signal, such as the main input cable from your cable or dish, hook it straight to your tv, and see if you can change channels, and get a picture on low band...2 thru 6, and then if not, how about any picture above channel 6, if you get picture on 2 thru 13 now, it could be whatever you have hooked in between the input cable and the tv...be sure you have the tv on the right channel for your receiver, usually 3 or 4, or if you are using another type of video input cable, make sure you have tv on the right input for that cable and that cable is good...check the in and out of your component unit, for correct cable hookup as well as your cables, in reference to using RCA video and audio left and right in and out...a lot of sets and vcr's will go to a blue screen if they lose signal to them....I hope this helps you out some.If you cannot get a picture from hooking your signal straight to your tv, it could be the tuner got a spike from a thunderstorm, or has lost the B Plus source for the tuner circuit. Be sure that it is not selected for an input signal,other than the cable or antenna mode, the onscreen text should verify this, if you can change channels with or without getting video...a picture....Good luck with it. T.

I don't have a solution, but wanting to know if you ever resolved your problem? I'm having the same issue with my JVC 32" model # AV-32D500.

thanks

I've found several bad solder joints on the neck board of my JVC 32' leading to the exact same issues as yours. Inspect the Driver resistor solder on the neck board.

Have you move the tv or is there a speaker that you might have move close by the tv?

turn the tv off for an hour and turn it back on see if the degaussing can correct ir other wise it may have a bad connect on the degaussing or you have some kind of magnetic device close by.,