Picture is too low . menus do not appear straight or are half present on screen. sides of picture appear concave. picture looks magnified.

If it is so badly curved the channel display is hard to see you have a part in the set bad---these like most have a pincussion circuit--it is individual parts that make the set have a straight picture on the sides especially, years (decades) there were controls in sets for this but to make sets cost less they use fixed parts.

It will not be an expensive part in most cases but finding it and replacing it in a older set may not be economical.

If you really like the set call a few shops to see if they will work on it and get a ballpark estimate.

Let me know if you have questions.

The set is probably in the wrong display format for the channels you are watching. Look through the setup menus for "Display format" or "Display mode". You need the menu that sets the picture for "480i", "720p", "1080p", etc. Set it for 1080p and see if that fixes it. The lower settings won't show all of the lines for a 1080p picture; they are used for old-style analog video or low-bandwidth broadcasts.

Disclaimer: this is general information and may not apply exactly to your particular model. You may still have to find your owner's manual or download a copy to find out how to correct the settings.

It is doubtful that the fence is concave but this can be checked with a straight-edge. More likely this is caused by the blade having hit a nail on one side and the teeth on that side of the blade are damaged. Hope this helps you.

To fix this problem with the malfunctioning " Joy Stick", and or selection or enter button, you must seperate the Remotes halves. There are no springs or other parts that will come flying out when the halves are split. Do Not use a screw driver to separate the seams the best tool is a tool used by manicurist on cuticles or make your own. Squeeze the bottom half while moving along the seam. Once you have two of the plastic catches released, the others will come apart. Then remove the three philips screws that will allow you to remove the board and attached LCD screen. The LCD screen is attached with a ribbon cable. To remove this cable, first back off the cable pressure locks! What looks like the end of the cable is only a pressure lock and stays with the main board. Do Not get in a hurry with this ribbon cable! Use a magnifying glass to have a close look! Turn the board over and remove the " button boot", this will allow access to the joy stick. The joy stick button is a friction fit and can be removed with equal upward pressure. Now you are at , what is a five way switch. Study the switch with your magnifying glass and a good light, you will see how the metal bracket holds the switch together. Bend the catches back on only one side of the bracket. This will allow you to remove the joy stick and see the five small concave metal discs. These discs are tempered to make contact and return to there concave shape. The center disc on mine was not concave, but near flat. These small parts will want to get lost!! Move slowly! I removed the middle disc and used a gold plated RCA plug that was rounded just enough to match the concave design of the disc. A few light taps and the disc conformed to operational shape. Putting the small disc back into the switch was testy. Reassemble the unit slowly, pay attention to the RF antenna, you do not want to break the solder connections. Clean the LCD and be sure you have the ribbon cable seated all the way into it's clip.
My RC-8000 now works and fixing this pesky switch cleared up a few other odd things going on in my 5803.
Patrick J Horan

the picture is bent inward and shadow looking sides are cut off.

IC chips are Failing, and or A few Resistors in the Convergence circuit. Commen problem for Projection sets!... OneGeo.

Replace Both fo your STKs convergence ICs STK392-040s. For Parts Call 1-800-223-3205

I have the same situation. Called my repairman, who knew exactly that it needed a "570 kit" . It will be repaired this week. Cost $360

Repeat / press WIDE button on remote = select a different
format.............................T.

sony trinitron colour 29ins tv its black and white not colour but the teletext is colour