Enquiry My JVC 21 inch Tv has a problem whereby the people being seen on the tv have oblonged images.From what i can see personally is that all images are upright that is they are straight or tall.What could be the problem with my tv.Please help me.

Talk to JVC as I have suggested and this is likely a known problem: loss of any color, picture upside down etc requires a upgrade to correct and I have seen about twenty sets with their name like this with this kind of problem.

no sound

it is able oir but himself not the image can be seen

If it has been moved or bumped recently the sound you are hearing is the main HT lead that has been displaced. TGhis is a blasck lead with a rubber disk surround at its end that fits into the picture tube. Do not touch without turning TV Off and using rubber gloves to reinsert.

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caption box selection is on. disable caption

This website describes how to program and links to a manual.
How to Program JVC Universal Remote Techwalla com

check the relay drive transistor
you need a qualified tv repair personal to check tv

ac relay stuck. located in fuse area oblong blue or white plastic cover 1 inch by2inch  try tapping on same.

In a large number of failures with these symptoms it's usually the HOT (horiz. output trans. Q522, which is a 2sd2499) and the regulator (Str30134), together with fuse F902 (Gma 1.25a). Not an expensive repair or that complicated if you're fairly good with electronics and know how to solder correctly. Otherwise take it in and have it repaired professionally - it's worth it...
Bill

sounds like your crt tubes...meaning Red, Green and Blue are out of alignment...or possibly 1 of the crt's is burned out.