Canadian RCA CTC-39X "Instant-PIC"

[hyperlag]

Hello Everyone,

First time poster here and my first TV and tube restore. I found a farm fresh Canadian CTC-39X recently. After replacing some cooked fuses I got it to power on. But curiously it will only demod sound and give a picture if "Instant-PIC" is turned on. I kind of guessed at the Sam's folder I needed and got 1284-2, but the model in there does seem to have this feature. Without it I get some low power draw when switched on, with it I get a huge inrush then quickly it settles under 300W where I expected it to sit with a funky raster and sound.

I first assumed it was an "instant on" type scenario, but there is no draw when the set is switched off. So I don't think the filaments are being kept warm or anything. Does anyone know what this feature is? I'm a first timer at this, so any tips would be appreciated.

That includes any other tips for what I should look into trying down for the wonked out vertical I am getting.