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Vertical problem with goldstar gct2556s tv

Picture squashed towards the center of screen.change ic ta8445k but no change to screen. change couple caps in the vertical circuit also. no improvement

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  • jasata Jun 06, 2008

    cambie el ic del vertcal ta 8445k cambie filtros de este circuito, y me esta quemando dos diodos zener que van al pin 12 del ic vertical


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SOURCE: Does the TOSHIBA TA8445K Vertical Deflection IC fails when the Deflection Yoke is Dirty?

hola tengo un tv onwua que no me habre el verticar ya revise los voltajes y estan bien pero en la pata 11 tengo solo 7 voltios en ves de 12 voltios cual puede ser el problema de mi parte muchas gracias.mi email es ruben_148_2@hotmail.com.

Posted on Aug 15, 2008

  • 7 Answers

SOURCE: vertical line in center have replaced vertical output ic

If the line is vertical then the problem is no horizontal deflection. The vertical chip is probably fine.

Check connections around yoke (thats the connector with at least four wires that goes up to the coils around the neck of the tube)

Maybe that TV has two horizontal output transistors. One for deflection and one for high voltage? Check both of them. Look for bad solder joints!!!

Posted on May 22, 2009

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Hiii fairley,

You aren't specsificly dercribe yor tv set.
For common TV horizontal problem ;i.e : White line accross the horizontal screen, horizontal band,etc..it's can solved by replacing the IC Vertical/Transistor, and olso to replace the cap nearest the IC.

For common TV Vertical Problem :i.e : White line at the center of the screen (top to bottom),Vertical band,etc...It's can cure by Replacing the Horizontal IC/Transistor,and offcurse the cap's.

Tha's what all I know....

Hope can help you to solved the problem.

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hola tengo un tv onwua que no me habre el verticar ya revise los voltajes y estan bien pero en la pata 11 tengo solo 7 voltios en ves de 12 voltios cual puede ser el problema de mi parte muchas gracias.mi email es ruben_148_2@hotmail.com.

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