Hi,
If I may add...
Have you tried looking over the CRT driver board? that would be the squarish PCB right at the very end of the CRT. In some models, there would be 3 heatsinked transistors responsible for each color or in some versions a single power pack IC. Often one of the transistor gets a cold solder or simply needs replacement.
Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.
Good luck and kind regards. Thank you for using FixYa.
Hi again,
Below would generally how it would look like connected to the rear of the CRT
it would look something like this if it uses an IC power pack
and something like this if it uses individual transistors.
Forgot to mention that the board is often encased in a shielding of some sort that has to be removed to gain access to the foil/solder side of the board. There would also be numerous grounding straps.
I am of course assuming that you are familiar with working on high voltage circuitry (G2/Screen) and FBT/EHT HV and safe practices/procedures.
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Listen, this is a CRT television and in Australia it is getting some negative reviews. The RGB cone is what is going bad. If you contact EMPR in Australia, they can diagnose and repair the unit relatively inexpensively for you.
This symptoms shows dry joints or bad solder joints in color processing area.
If you know good solder work, you can do it yourself. Just look for lose connections / solder joints at main board and sub boards OR call TV Tech person to fix it.
Have you tried to manually adjust the convergance?. go into your set up menu there you will find the convergance adjust ment. please rate this..thanks
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Thanks for the suggestion, but this TV does not have a convergence adjustmenton the user menu as far as I can see. Or do you mean the Geomagnetic adjustment? If so this only adjusts the alighment of the picture. Or do you mean the Service menu?
Thank you to welcome jee. How would I identify the "Colour Processor" area?
I have spent a couple of hours checking the soldering of the color proccessing board and other areas plus plug connections and these appear sound. Also have turned the set on and tapped all the components on the PC boards while watching a test pattern on the screen for any change, to no effect. Any other suggestions? This is a CRT wide screen 32" TV.
Thank you all for the suggestions, but I believe toddg may have hit the nail on the head as the color problem is getting worse not just on the Red. Will contact EMPR Australia on Monday and get it sorted. Thank you toddg!
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