View Single Post
  #6   Report Post  
Posted to sci.electronics.repair
Tim Tim is offline
external usenet poster
 
Posts: 118
Default Another Problem TV Thrown My Way - Sony KV27S42 - Purity Problems

In article . com,
says...
On May 11, 5:00 pm, Tim wrote:
In article , says...



On Fri, 11 May 2007 15:18:59 -0300, Tim wrote:


This one was dropped on the bottom left corner by the looks of the
cracks in the case. Now it has bad purity down the left side, and the
bottom right corner. I have found some info on the net here;


http://videotech.lesterville.com/sony.htm

I thought I would check here to see if there are any alternatives to
trying magnets etc to get the purity back. I seem to recall that the
rings on the neck of the CRT used to be used for purity too, but these
ones have not moved.


Thanks,


If it was dropped the shadow mask inside the tube has shifted and you need
magnets.


I thought it would be something like that. I experimented with my
magnetic screwdriver, and I was able to almost eliminate most of the
problem on the left side while it was near the back of the CRT, so maybe
I'll experiment some more with magnets.

It probably doesn't matter at this point, but I had the symptoms
reversed. It was dropped on the right corner and the purity problem was
mostly down the left side.

Thanks for the info.

- Tim -- Hide quoted text -

- Show quoted text -


I used to cement small magnets to the picture tube glass bell using
silicon rubber.

H. R.(Bob) Hofmann


I used double sided foam tape after cleaning the glass. I saw that there
was a small circular one already attached that way, so I copied the
method. If they fall off, I'll use your silicon rubber idea.

Thanks,

- Tim -