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  #16  
Old 07-02-2013, 12:30 PM
jmetal88 jmetal88 is offline
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Alright, I picked up a 24" flat CRT Toshiba at a thrift store today for $25. The colors are great on this set, but it has some geometry problems (I notice these seem to be more noticeable on the flat CRTs than on the curved CRTs). Third set in, and I have to say it seems impossible to get a used set that's still in awesome shape, haha. I think I'll be able to sort out most of the geometry problems with this set by twisting the yoke around, though. In fact, I just twisted it to the left a little and it's already a lot better. Now I think it just needs the spacers adjusted a bit to get rid of some of the bowing of the picture up and down on the outer edges.
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  #17  
Old 07-02-2013, 01:06 PM
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zeno zeno is offline
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Quote:
Originally Posted by jmetal88 View Post
Alright, I picked up a 24" flat CRT Toshiba at a thrift store today for $25. The colors are great on this set, but it has some geometry problems (I notice these seem to be more noticeable on the flat CRTs than on the curved CRTs). Third set in, and I have to say it seems impossible to get a used set that's still in awesome shape, haha. I think I'll be able to sort out most of the geometry problems with this set by twisting the yoke around, though. In fact, I just twisted it to the left a little and it's already a lot better. Now I think it just needs the spacers adjusted a bit to get rid of some of the bowing of the picture up and down on the outer edges.
Adjusting the yoke wedges will only effect convergence. Sounds like
pincushion. Almost sure its in the service menu & you will probably
need the original remote to get in. I dont know how but maybe
someone else does.
BTW those sets are super sensitive to surges / lightning, so unplug
when storms near. We saw tons of these mostly combos with
blown FET's & other damage. On the up side they did throw a
nice pix.

73 Zeno
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  #18  
Old 07-02-2013, 04:04 PM
jmetal88 jmetal88 is offline
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Quote:
Originally Posted by zeno View Post
Adjusting the yoke wedges will only effect convergence. Sounds like
pincushion. Almost sure its in the service menu & you will probably
need the original remote to get in. I dont know how but maybe
someone else does.
BTW those sets are super sensitive to surges / lightning, so unplug
when storms near. We saw tons of these mostly combos with
blown FET's & other damage. On the up side they did throw a
nice pix.

73 Zeno
I know what pincushion is, and it's not pincushion. All pincushion adjustments I have seen adjust how far it bows in or out at the sides, where as this is bowing in at the center of the top and bottom of the screen. On my Sony, how it was bending was dependent on how the deflection yoke was 'tipped'.

EDIT: Nevermind, I'm thinking of the parabola adjustment. I haven't seen a pincushion adjustment on a TV, actually, just on computer monitors.
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  #19  
Old 07-02-2013, 05:26 PM
jstout66 jstout66 is offline
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Hey jmetal88,
I'm not meaning to be a smart ass in my reply, but is there something in your place that's maybe causing those issues? 3 sets in a row with purity/geometry problems is a tad odd. However... and this is just my opinion, but Sony's from the mid 90's on were junk, especially the Wega series. Too many wonky high-voltage issues. I own a 24" Toshiba (which was a Wega "clone") As a matter of fact, I bought a 24" Wega and had issues with it on day one, and made the store take it back. After checking out online reviews, the Toshiba seemed the way to go. I discovered later it had an "Orion" tube in it (junk) but.. am surprised I haven't had issues and the picture is so good after 10 years. And man... I have to concur with anyone that's tried to move anything bigger than a 27" set. I have a 32" JVC and thought I was gonna keel after trying to move that beast. I'm with ya on wanting to keep a good CRT set around, however.. if either of the 2 32" CRT sets I have die, they're getting replaced with something smaller. I'll NEVER move a 32" or larger again.
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  #20  
Old 07-02-2013, 06:04 PM
jmetal88 jmetal88 is offline
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Well, each one of these sets I've bought in Oklahoma, tested them at my parents' place, and then moved them to my apartment in Kansas. Same issues in both places, so no, it's definitely not something in my place.
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  #21  
Old 07-03-2013, 05:54 AM
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zeno zeno is offline
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BTW easy way to move a big set is with the back off
if possible. Screen against your gut & hands grabbing each side.
Keep the weight close to your feet & you have something to
grab that wont slip. Makes a 32" feel light. Its not the weight,
its the awkwardness. Just watch out for the neck !!!

73 Zeno
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  #22  
Old 07-03-2013, 10:35 AM
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RobtWB RobtWB is offline
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quote ... "So it leaves me wondering, is 32" too big to get decent color purity out of a CRT? Or is it something about these particular sets that was just causing issues from age? I'm tempted to try and find a decent late model 27" CRT soon for comparison."

the answer is no. many "high end" 32" and larger sets have excellent color purity , convergance , and zero geometry issues ...

they are quite the bear to move around though
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  #23  
Old 07-03-2013, 11:04 AM
jmetal88 jmetal88 is offline
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Quote:
Originally Posted by RobtWB View Post
quote ... "So it leaves me wondering, is 32" too big to get decent color purity out of a CRT? Or is it something about these particular sets that was just causing issues from age? I'm tempted to try and find a decent late model 27" CRT soon for comparison."

the answer is no. many "high end" 32" and larger sets have excellent color purity , convergance , and zero geometry issues ...

they are quite the bear to move around though
Yeah... I just have to wonder though, as it seems like I can't find any sets that haven't developed geometry and color issues by now. Even the 24" set I just picked up has geometry issues with the horizontal lines bowing in toward the center. Of course, I've never been able to test any of these sets thoroughly before I got them home, so I'm pretty much stuck with them, unless I want to try and sell them off to someone else.

EDIT: I do have to say, though, that this is mostly on 'newer' sets that have YPbPr inputs on them. I feel like with the older 'simpler' sets, I haven't seen nearly as many issues.
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  #24  
Old 07-03-2013, 07:35 PM
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RobtWB RobtWB is offline
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... craigslist, yard and estate sales are over run with truly dumb people unloading large, exceptionally nice CRT sets, even the super fine pitch Sony sets, simply because they want a flat screen to hang on the wall ... nothing wrong with that, going to purchase one myself here soon, but ... you should be able to pick a fine used CRT set for essentially pennies compared to the original price ... can't keep track of all the top line Sony's I have seen lately for just a few dollars ... and I am talking about sets that originally cost hundreds of dollars north of a grand ... go with the largest set you can handle and have room for... my daily watcher is a Sharp 36" CRT set from 2002 ... a pleasure to watch ... and if I remember $ 60 at an estate sale
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  #25  
Old 07-03-2013, 09:23 PM
jmetal88 jmetal88 is offline
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Quote:
Originally Posted by RobtWB View Post
... craigslist, yard and estate sales are over run with truly dumb people unloading large, exceptionally nice CRT sets, even the super fine pitch Sony sets, simply because they want a flat screen to hang on the wall ... nothing wrong with that, going to purchase one myself here soon, but ... you should be able to pick a fine used CRT set for essentially pennies compared to the original price ... can't keep track of all the top line Sony's I have seen lately for just a few dollars ... and I am talking about sets that originally cost hundreds of dollars north of a grand ... go with the largest set you can handle and have room for... my daily watcher is a Sharp 36" CRT set from 2002 ... a pleasure to watch ... and if I remember $ 60 at an estate sale
Well, from the way things are going, it's gonna take me a long time to get to that 'exceptionally nice' set. The ones I've bought were all very nice models when they first came out, but I don't know if people around here are just exceptionally rough on these sets or what...
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  #26  
Old 07-07-2013, 08:36 PM
jmetal88 jmetal88 is offline
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Man... I got the 24" TV back up to my apartment today, but I just can't bring myself to get rid of the 32" set, in spite of the uneven colors. It really does have a great picture, and the discoloration isn't noticeable unless the background of the screen is a solid color and relatively bright, so I think I'm just going to keep it in my living room and use the 24" set as a spare for the bedroom. Guess I better get used to calling friends to help me move the 32" set from time to time.
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  #27  
Old 07-10-2013, 03:46 AM
Dude111 Dude111 is offline
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Quote:
Originally Posted by jmetal88
This is probably an odd question, but since I insist on keeping a 'modern' CRT TV around for daily viewing.....
Thats understandable...... I think most of us here do!!!! (We prefer BETTER quality)

Good luck with everything my friend

Last edited by Dude111; 07-10-2013 at 03:50 AM.
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