Question about Toshiba CF32G40 32" TV

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Rainbow pattern on CRT TV

My TV took a tumble while moving it to a new entertainment center.  Despite that it fell a good 20", face first, onto a hardwood floor, the tube is still intact.  Unfortunately, the picture now has pronounced regions that are saturated by with the various three RGB colors.  The picture is otherwise good.  Because this occurred directly after the fall, I did not think of trying to degauss it yet, though I'll give that a try this evening. 


I'm an EE with access to test equip and have been 'bitten' before so I'm careful while working inside HV sources.  Unfortunately, beyond understanding the basic theory of operation, I've got very little idea how the fall may have caused this problem. 


Any help or suggestions would be greatly appreciated!


Thank you!

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  • CarelessGuy Oct 19, 2007

    Thanks AccordianMan!  I did not think of this but it does make perfect sense.  I guess I'll be shopping for a new TV soon...


    Thanks again for your help!



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If degaussing doesn't work, it may just be time to pony up and replace the crt as it sounds as if the shadow mask inside the tube has come loose. And, as you know, there is no opening that to service it.....accordianman

Posted on Oct 16, 2007


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