Zenith Chromacolor console no video

[Eric H]

It looks like something's wrong with the Flyback, possibly burnt?
It looks like that red lead has been recently exposed at the end where it should be embedded in the tire.

[StratLou]

Originally Posted by Eric H

It looks like something's wrong with the Flyback, possibly burnt?
It looks like that red lead has been recently exposed at the end where it should be embedded in the tire.

I will have to try to get better photos listed of that area. I believe the wire is still attached and is part of the repair done in the 80's where something exploded in that area making a big paper mess and taking out the High Voltage, if I remember correctly. There are some trimmed pieces of the red wire sitting in the cabinet near that board. Probably from the repairman prepping the red wire ends for resoldering. Thanks.

[DaveWM]

those safety caps look correct (replacements for the ones known to go bad, there should be a sticker somewhere on the back of the cabinet documenting the fix).
if you look carefully you should see the word "special" along with the part number.

[StratLou]

Originally Posted by DaveWM

those safety caps look correct (replacements for the ones known to go bad, there should be a sticker somewhere on the back of the cabinet documenting the fix).
if you look carefully you should see the word "special" along with the part number.

The back of the tv has been exposed to sunlight for many years and the few stickers that are there are bare as whatever was written on them has long ago faded from UV ray exposure, unfortunately. I still plan to remove the bottom plate of the chassis to check the underside to confirm if there are any remaining caps there that were changed or are still the original(s).

[kx250rider]

Originally Posted by Eric H

It looks like something's wrong with the Flyback, possibly burnt?
It looks like that red lead has been recently exposed at the end where it should be embedded in the tire.

Looks OK, but the silicone rubber glob has been pulled off. MUST put a new glob, or there will be arcing (and a strong risk of RF burns to the hand anywhere nearby).

I think that flyback has an eye terminal on the windings; not embedded.

Charles

[StratLou]

Originally Posted by kx250rider

Looks OK, but the silicone rubber glob has been pulled off. MUST put a new glob, or there will be arcing (and a strong risk of RF burns to the hand anywhere nearby).

I think that flyback has an eye terminal on the windings; not embedded.

Charles

1) Do you think the electrical tape that has been there since the repairs were done back in the mid 80's has done the job of the silicone in preventing the arcing?

2) Is the eye terminal, that you mention, visible in any of my photos?

[StratLou]

Originally Posted by Eric H

It looks like something's wrong with the Flyback, possibly burnt?
It looks like that red lead has been recently exposed at the end where it should be embedded in the tire.

What constitutes the flyback exactly? Is it the entire area between the 2 boards or is it the black area where the windings reside (or something else)?

The red lead actually had a piece of black electrical tape wrapping the area. It dried out and fell off exposing the area where the caulking/sealer is and the end of the red wire (since it was covered, it stayed of course cleaner than the rest of the wire shown).