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-   -   Any hope for this TV (https://www.diybanter.com/electronics-repair/41120-any-hope-tv.html)

Roger December 7th 03 12:39 AM

Any hope for this TV
 
Would someone have a look at this TV screen. The fix could be easy but
beyond me right now.

http://www.islandnet.com/~roger/TVmonitor.html


Roger

David December 7th 03 12:58 AM

Any hope for this TV
 
Maybe, maybe not.
If the failure is in the degauss circuit or due to a big magnet being too
close to the tv, relatively simple fix with the right tools and training.
If the tv was dropped and the shadow mask was damaged, it needs a new
picture tube to correct the problem.
If the yoke has shifted or someone screwed with the yoke adjustments, only
time needed by someone with the experience and training to do the
adjustments with the proper test signal generator.

David

Roger wrote in message
...
Would someone have a look at this TV screen. The fix could be easy but
beyond me right now.

http://www.islandnet.com/~roger/TVmonitor.html


Roger




Jerry G. December 7th 03 05:53 AM

Any hope for this TV
 
The set may have been dropped, and the mask in the tube was damaged.

The degaussing coil is not working properly.

The CRT was exposed to a strong magnet and requires a proper degaussing.

The deflection yoke, and purity magnets may be out of alignment. This also
means a full convergence alignment.

Because I can see some rings or curved lines (looks like Newton Rings),
from experience when I have seen these, it was usually the mask in the CRT
that was damaged.

--

Greetings,

Jerry Greenberg GLG Technologies GLG
=========================================
WebPage http://www.zoom-one.com
Electronics http://www.zoom-one.com/electron.htm
=========================================


"Roger" wrote in message
...
Would someone have a look at this TV screen. The fix could be easy but
beyond me right now.

http://www.islandnet.com/~roger/TVmonitor.html


Roger



James Sweet December 7th 03 06:51 AM

Any hope for this TV
 

"Roger" wrote in message
...
Would someone have a look at this TV screen. The fix could be easy but
beyond me right now.

http://www.islandnet.com/~roger/TVmonitor.html


Roger


Was it dropped? If not then the repair should be almost trivial.



GPG December 7th 03 11:42 AM

Any hope for this TV
 
"James Sweet" wrote in message news:o5AAb.325146$275.1084414@attbi_s53...
"Roger" wrote in message
...
Would someone have a look at this TV screen. The fix could be easy but
beyond me right now.

http://www.islandnet.com/~roger/TVmonitor.html


Roger


Was it dropped? If not then the repair should be almost trivial.


Moire pattern caused by interference between screen and shadow mask, tube stuffed.

Roger December 8th 03 02:57 AM

Any hope for this TV
 
Well, I sought out the previous owner and she says it was dropped. Dang!
But I know more now anyway.

Thanks for the help
Roger



In article ,
"David" wrote:

Maybe, maybe not.
If the failure is in the degauss circuit or due to a big magnet being too
close to the tv, relatively simple fix with the right tools and training.
If the tv was dropped and the shadow mask was damaged, it needs a new
picture tube to correct the problem.
If the yoke has shifted or someone screwed with the yoke adjustments, only
time needed by someone with the experience and training to do the
adjustments with the proper test signal generator.

David

Roger wrote in message
...
Would someone have a look at this TV screen. The fix could be easy but
beyond me right now.

http://www.islandnet.com/~roger/TVmonitor.html


Roger





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