I have this RCA tv and since the horizontal and vertical cables are separate on the yoke the vertical works works fine but as soon as the horizontal is plugged in the TV immediately shuts itself off and I just replaced the HOT too.
The only test I did on the yoke was seek of there was continuity between two poles where the board plugs into and there was continuity on both horizonal and vertical.
Below links will contain my HOT testing
The new HOT https://imgur.com/gallery/hyyj68D
Old HOT https://imgur.com/gallery/YyhoJvD
Spare HOT I pulled from a Sansui https://imgur.com/gallery/S0LFPyh
And various pics of the components
The only test I did on the yoke was seek of there was continuity between two poles where the board plugs into and there was continuity on both horizonal and vertical.
Below links will contain my HOT testing
The new HOT https://imgur.com/gallery/hyyj68D
Old HOT https://imgur.com/gallery/YyhoJvD
Spare HOT I pulled from a Sansui https://imgur.com/gallery/S0LFPyh
And various pics of the components