JVC AV-27S33 only displays black and white (Color gone) Menus are still in color!

Hello
Just make the picture status button on the remote control and get the display setting to its factory mode.

The VIDEO STATUS button gives you a choice of three TV picture display settings, including a
display of your own preferences.
Standard - Resets the picture display to the factory settings.
Dynamic - Heightens contrast.
Theater - Gives a rich, film-like look to video. (AV-27D303, AV-27D203 and AV-20D303 only)
Sports - When you watch a sports program. (AV-27330, AV-27320 and AV-27S33 only)
Press the VIDEO STATUS button repetedly to get these choices.

Does it have a video input? Does it have color when playing a vhs tape or dvd into the video input?

Does the set show the raster lines? Is there any snow showing on the raster?

If the set does not show color with an a/v input either then it is likely the main power supply section feeding the deflection system or the video processing is bad.

RCA sets more than a few years old are not good investments for repairs, unfortunately.

Let me know the answers to the questions above and I can give you a more precise suggestion.
 
 Good Luck
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This could be several things. At its best you have an open resistor near the flyback. You may have a bad ground on a color output transistor, or a bad ground on a color output resistor. These are located on the small board connected to the CRT. In really bad cases you may have replace the transistors, or resistors. But in worst cases, and I do believe its true, you have a bad picture tube. I would not recommend a repair. I have seen this problem with many, many TVs of any brand. You are smarter to purchase a new TV. Thanks for asking and show all hands of support!

Wow that's interesting, was there anybody watching your home while you were gone? There is a possibility that someone simply turned down the color level with the color control? Check that first. It's an unusual symptom. With composite video, component video or HDMI it's not usually possible to experience that defect. Since the color (chrominance signal) is usually inseparable from the luminance (black and white signal) I would check the color setting first. Other wise your set has become unable to detect that color signal... I bet it's a setting rather than a defect.

Happy Viewing
Zashiban

I would guess you are using an antenna or a cable service without a set-top box.

When the TV is using HDMI or component video it does not employ the decoding for the color as like when using an RF feed. Most people of today do not use RF directly in to their TV set using the built in tuner. They feed a desk-top box that feeds a decoded picture in to the set via the component RGB connectors, or they are using HDMI.

When viewing an RF signal from the antenna or cable using the TV's internal tuner, check the video settings. make sure the setting for Color is turned up to 50% of its range to start with. If there is no color, check to make sure the Settings are correct. Check to see if the TV has a black and white mode, and this mode is turned on.

Check to see if the TV receiver section is for your location type. If you have a set from another country that uses another broadcast system for color this can be an issue.

It is also possible the TV set's color decoder for RF reception is defective. This would require proper service. You would not be able to service this yourself.

Based on the info you supplied these are the best suggestions I can think of...

If you are using the red,green and blue component inputs, check to make sure the red and blue ones are connected good and none of the jacks are loose. If not there is a problem with either the DVD player or the TV. Hard to say. Thanks

Press and hole Scan Mode button for 2 seconds, Y/C will show in front display, use > to change to RGB then press OK.

Please fine tune those B/W channels to obtain color picture. If TV is more then 4 - 5 years old, it needs resoldering in tuning area or might need replacement of IF block.

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.,