Tube question from a rookie

[dieseljeep]

Originally Posted by Wind157

I had someone else say B+ also (not sure what that is). There is a rectangular resistor near the rectifiers that I suspect is bad. Multimeter and resistance test don't give consistent results and there is corrosion on it's lead that seems to be coming from the resistor itself and no other components have any corrosion/oxidation at all. Waiting on a new one to confirm my theory.

That resistor runs rather hot and will corrode the lead wires.
You'd have to check the voltage on both sides of the resistor, meter set on AC range.

[Wind157]

That was indeed the, or at least one of the problems. No to figure out why half the screen doesn't work. Oh fun with vertical

[dieseljeep]

Originally Posted by Wind157

That was indeed the, or at least one of the problems. No to figure out why half the screen doesn't work. Oh fun with vertical

For some crazy reason, I like that model Zenith. They work really well when restored. It looks like the CRT has a lot of life in it. The only bad thing is it's a little hard to work on, because the way it's assembled.
In your next post, include the chassis number and maybe someone has the schematic for it. You need one to have it when doing a restoration.

[Wind157]

Its a Z1819JZ chassis is a 15z31 and I have one for it. Only way I was able to find out what resistor I needed as the bad one was so worn there where no numbers on it.

[Kevin Kuehn]

Have you tried adjusting the vertical height and linearity controls? Otherwise have you replaced the paper and electrolytic capacitors in this TV?

[Wind157]

I have not. Getting it to power on was was exciting. I suspect a capitor may be an issue related to the vertical. When it did power on there was a small, barely noticeable, amount of smoke coming from a component. From seeing the smoke to getting closer to look, it wasnt happening anymore.

[Wind157]

Originally Posted by Kevin Kuehn

Have you tried adjusting the vertical height and linearity controls? Otherwise have you replaced the paper and electrolytic capacitors in this TV?

I’ve done some adjusting, I either get a picture that takes up the whole screen but is faded and has fold over or I get a narrow picture with black section below