hey all!i got a rca f27450 atc113 chassis.set had a repair last winter(hot,flyback,and regulator)worked very well until yesterday.vertical collapse with the bottom 30% visible.any place to start?looks like a cap.any help is greatly appreciated.

It's probably caps, a bad vertical IC, or both.

Last one I had was just bad solder joints on the IC. These sets use "no lead" solder which causes lots of problems!

i just did a fly/hot replacement on one, but it stuck with me with a super bright raster with retrace, picture almost washed out. any ideas? G2 drive doesnt do too much.

Check the G2 voltage from the flyback and make sure it varies as you adjust the control. If it does not, you have a bad flyback or you might have possibly forgot to solder the G2/focus ground lug on the underside of the flyback to the PC board.

If that checks out, measure the B+ voltage to the video output stages. It should probably be at least 200 V. If not, suspect an open resistor or a bad cap in the B+ line.

what kind of voltages am i looking for when i measure the G2 line? reason i ask is i dont have an HV probe. just a basic multimeter. but i know when i turn the G2 pot, it washes the retrace lines AND picture out way too far and i have to turn the pot all the way back to the left before the picture pops back in, but too bright with retrace, however i DO have a picture and is readable.