Got this email from Mr Raja from India
Hi sir,
We got a CRT TV for repair at my work Bench (Samsung
21inch)
There was a power supply problem which we rectified,
TV is working fine, but we are getting 3 RGB lines at the top of the screen as
shown below in the photo. Changed all the filter capacitors on vertical section
I.C used is TDA8356 please let me know the root cause to solve this issue
Please go through the picture for your understanding