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#2
07-01-2019, 10:00 AM
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Those lines are retrace lines. At the end of a frame scan the electron beam returns to the beginning. Normally the set should have a blanking signal that is sent to the CRT to turn off the beam during this time. It could be that the set doesn't like the way the modulator puts out the sync signals.
Post the TV model number and/or the schematic. Did you replace resistors also? Do you have some test equipment? 
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