Question about Sharp 27C-240 27" TV

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Please help me with my sharp t.v model no.21V-A300XB

The picture is out of focus, i already adjust the focus control in the flyback but has no effect i already check if there is any cold solder and has replaced electrolytic capacitors around the horizontal circuit but has no effect..

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Re: please help me with my sharp t.v model no.21V-A300XB

Si tu change l'element blanc(CRT base socket) qui est sur le canon du tube cathodique et tu n' as pas de resultat favorable change le THT pour voir.

Posted on Feb 10, 2008

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Re: please help me with my sharp t.v model no.21V-A300XB

The problem could be with the CRT base socket, why don't you try replacing that? It is not a costly component, and it is easy to replace. Make sure you buy the exact same thing and verify connections.

Posted on Jan 24, 2008

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SOURCE: my name is mar i have sharp t.v model no. 21V-A300XB

Replace the crt base socket, it is not a costly component but make sure you get the same type and verify the connections. Good luck.

Posted on Jan 25, 2008

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My name is mar i have sharp t.v model no. 21V-A300XB

Replace the crt base socket, it is not a costly component but make sure you get the same type and verify the connections. Good luck.

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When you replaced the flyback the new flyback is shipped with the screen and focus controls set at minimum. These are the 2 controls on the flyback itself. Turn the set on and let it warm up a minute, then slowly turn up the screen (bottom) control with a small flat-head screwdriver. When the picture is around normal brightness, adjust the focus (top) control until the picture is nice and sharp. Then, turn the brightness and contrast all the way down and set the screen control until you can just see the picture, just above the point where the picture vanishes. Reset the brightness and contrast settings and your picture will be back to perfect.

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