If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/
SOURCE: why come white vertical line on my t.v screen in center?
You said "I checked vertical output line from main ic pin 23 found correct"
But the problem is "Horizontal Output Line" Try that.
Testimonial: "which are main horizontal main circuit ? would u like plz tell me"
LA 76810 is the processor-chroma- oscillator jungle & 78040 is the vertical IC. Refer its schematic for more details. If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/
Check and replace its main system control memory IC; with the same number. http://electronicshelponline.blogspot.com/
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