Sony KP-511HW40 fleshing with green color and shuts off

IF YOU HAVE A RA 6 CHASSI THE TUBES RUN HOT ANOID CATHOD SHORT IF YOU TAP ON THE NECK OF THE TUBES AND GOES TO SOLID COLOR THEN SHUTS OFF YOU HAVE TO REPLACE THAT TUBE ALL 3 TUBES WILL HAVE THIS PROBLEM

Replace your convergence ICs STKs big black ics Go by number on them STK392-560 ect..... Parts you can order on line www.electronix.com or Call 1-800-223-3205 you will also need silicon heat sink compound to put on New ICs replace Both STKs

sounds like your convergence IC's have finally gone bad.. they seem to last 5 years on average.. have a look here: http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html

you will need to call an electronic repair shop to get this problem resolved

you need a green CRT thats whay you have the white kind of concave lines with the green screen. You can try adjusting the green screen control but you need anew CRT ( tube) the speaker cover has two plastic plugs that get removed on the lower edge os the grille which covers the two screws that hold the grille on. If you need more assistancr or where to get a green CRT let me know as I have a link that has some green and red Tubes for your model.

or a new lamp. you could first replace the lamp.
the screen might work fine for a couple of seconds, but then it fades away or deteriorates. This means the lamp is going bad.

Have a Tech. replace the focus/screen block if the problem continues you have a bad red CRT.

Probable bad green CRT..........usually about 600.00....T.

How old is this set? Sounds like a CRT issue, might be able to adjust the G2 control (SCREEN), you will have to pull the bottom pannel off the front and there should be another little 1/4" thick board that comes off with a few screws and then a 6 knob control, turn your color all the way off in the menu and adjust your screen controlls up till you get some overcolor with lines in it and then back down just before the lines (MAKE SURE YOU DEFAULT ALL YOUR USER MENUS) check that you have a black and white picture after adjusting all 3 screen controls like before with the menu color off. If you have a bad CRT it will go again, the CRT may no longer be available, if the set is not too old i.e. 5-8 years old it may be a defect with multiple CRTs.

rodman, i just started having the exact same thing on my Sony (same model). it's about 5 years old. did you ever find a solution?