Zenith out of cabinet - Page 2 - Videokarma.org TV - Video

leadlike · #16 04-28-2012, 04:30 PM

I did not back the Bondo with anything. In small quantities, Bondo is about as flexible as the Zenith mask is. Basically, I forced a blob through the back of the mask, struck the excess level off of the face of the mask, and let it cure. I gave it the "twist test" and the Bondo stayed put. But to be safe, I pulled the whole piece out, and glued it back in with either gel superglue or gorilla glue (I forget which). Bondo tends to stay together in one piece (which is why auto restorers dislike it, as the whole fill piece will eventually fall out, making an ugly wound in the car) so it can be pretty easily be removed from the work piece as I did and still be a perfect fit later.

cwmoser · #17 04-29-2012, 06:35 AM

If it were me, I'd dry fit all the pieces making sure where they will fit. Then use Epoxy to carefully glue it back together. Smooth it down to the surface. Then let it cure. Then put down a bed of Epoxy and take some fiberglass cloth and press down into the glue. I would only use the fiberglass cloth on a non-visible area and make sure that it is low enough that the Mask will still fit in the TV cabinet.

If there are any voids from missing pieces, etc, I'd use some bondo and/or fiberglass cloth and carefully smooth it out before it dries. Then if it looks "patchy", paint the mask.

I bet you can make it look as good as new. Restoring these old TVs sometimes requires ingenuity that you didn't originally anticipate.

Hey, I've got a 19" Zenith Porthole and it has cracks in the mask that I am going to address when I pull the chassis again. When you get your Porthole playing, I think you will find that 19" CRT makes a pretty good size viewing surface. These Zenith Portholes make wonderful TVs and are very collectible.

Carl

ShartZenith · #18 04-30-2012, 10:02 PM

CW, Phil and everyone that responded, Thanks for all the tips. I've copied them all and will print them out when I'm ready to tackle that darn'd ring. I want it to be right and I will take my time with it. Heck, it will be one of the last pieces back on anyway. I'm having fun every night piddling with her and haven't even started the real work yet! I look at the chassis and the cabinet every night and feel like a proud papa.

cwmoser · #19 05-01-2012, 06:08 AM

Quote:

Originally Posted by ShartZenith

CW, Phil and everyone that responded, Thanks for all the tips. I've copied them all and will print them out when I'm ready to tackle that darn'd ring. I want it to be right and I will take my time with it. Heck, it will be one of the last pieces back on anyway. I'm having fun every night piddling with her and haven't even started the real work yet! I look at the chassis and the cabinet every night and feel like a proud papa.

Be sure and take lots of detailed pictures of your chassis for later referral. How about posting some here for us to see?

Carl

ShartZenith · #20 05-02-2012, 07:15 PM

These are from the 23rd after I used a damp t-shirt to take off the dust and dirt. It was actually cleaner and easier to make it clean then my Predicta. The Predicta is so cramped for space I only used compressed air and a small paint brush.

John Marinello · #21 05-02-2012, 10:09 PM

That CRT is not supported, and could break like that. Remove it before you do
any more work.

cwmoser · #22 05-03-2012, 06:07 AM

Quote:

Originally Posted by John Marinello

That CRT is not supported, and could break like that. Remove it before you do
any more work.

Didn't notice that. I agree with John, remove that CRT and store it in a safe place. The CRT is very hard to find a replacement for.

Carl

ShartZenith · #23 05-04-2012, 06:45 PM

I honestly do not know how to remove it safely and my friend Bob who will help with the resto won't be over for weeks. Is there something I can put under the tube to support it temporarily? I'm not equipped to remove this monster tube by myself and risk ruining it. help.

cwmoser · #24 05-04-2012, 06:55 PM

Quote:

Originally Posted by ShartZenith

I honestly do not know how to remove it safely and my friend Bob who will help with the resto won't be over for weeks. Is there something I can put under the tube to support it temporarily? I'm not equipped to remove this monster tube by myself and risk ruining it. help.

Disconnect the rear connector.
The ION Trap is a clamp like device that you loosen and slide off the back of the CRT.

Then, you should be able to pull the CRT out from the front.

I had ready an paper index card that I had to insert between the neck and the Yoke as the rear connector wanted to snag on something. I carefully supported the CRT so as not to let the long neck break, noted that the neck snagged, then inserted the index card so it would slide out easy.

Carl

ShartZenith · #25 05-04-2012, 07:19 PM

Okay, will follow your instructions this weekend and get it out. Temporarily I inserted a 1/8 in. thick piece of flexible rubber under the front edge of the tube. Once the tube is out just lay it on its front supported with some foam in a box? Seems like I read that somewhere recently. Thanks.

ShartZenith · #26 05-04-2012, 07:28 PM

CW - Just to make sure we're on the same page, here are some photos just taken of the tube from the rear. Steve

cwmoser · #27 05-05-2012, 04:38 AM

Yes. With one hand hold the black plastic base and with your other hand carefully pull the part with the wires on it. You want to hold the black plastic base as sometimes these come loose and you don't want to pull off the black plastic base. If you find the black plastic base is loose, you can use Super Glue to make it tight - but wait and do this later when your friend tests the CRT.

Once the back connector is removed, looking forward is the ION TRAP. With a pencil write an arrow pointing to the front on it so you know how it goes back on. Then, loosen the long screw and slid it off the back.

Have an index card ready just in case - you may or may not need it.
From the front of the CRT, carefully pull the CRT out and away from the chassis Yoke. If you feel it snag, you can push is back into the Yoke.

If it snags, its because the black plastic base on the CRT. From the back, insert the index card under the CRT neck where it enters the YOKE hole. The idea is that the index card allows for a smooth surface for the black plastic base to ride on.

Don't put pressure such that it bends the CRT neck - you don't want to break it.
If the CRT stil will not come out, just push it back in the Yoke assembly all the way and support the CRT front slightly with the piece of rubber such that you are taking pressure off the neck. But, you really want to remove the CRT so you can get to cleaning the chassis before your friend comes over. Also, when you fully remove the CRT, turn the chassis upside down and take some pictures and post back here.

Once you extract the CRT, store it in a safe place face down. What I did was to store it in the corner of the room face down on carpet. But, I did not have pets or kids that would mess with it.

Let us know how this worked for you.

Carl

ShartZenith · #28 05-05-2012, 09:27 AM

Okay, thanks for the play-by-play. I'm a little bit more comfortable now. Will try to do this later today or tonight. Steve

ShartZenith · #29 05-05-2012, 03:23 PM

The picture tube is out, no damage inflicted. Resting comfortably in custom cut box with lotsa foam at the bottom. Here are some pics just taken. Relying on you guys to tell me what you see is obviously wrong. I cut the resolution in half on these so if you want me to email any they will be abt 1mb each in original format. The only thing obvious I see is the covering on the winding inside the HV cage has flaked off, a piece lying at the bottom. Steve

cwmoser · #30 05-05-2012, 06:52 PM

Your chassis looks pretty clean and rust free.

As far as your Flyback in the HV cage, this person had the same problem and solved it - see this thread:
http://antiqueradios.com/forums/view...91551&start=80

This link takes you to page 5 of his Zenith restoration thread. You should find it interesting reading all of his thread - especially about recoating the Flyback.

Carl