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TV: vertical colored lines on TOSHIBA TV Model 36ZP46P

The screen of my (conventional tube technology) TOSHIBA 36" TV, Model 36ZP46P frequently changes to brightly colored vertical lines, as if the tube's vertical amplifier suddenly & intermittently fails. The fault is intermittent in nature. It comes & goes regardless of whether it is showing a TV pic from its analogue built-in tuner or running a freeview pic from an external source.

The TV sometimes switches itself to standby and puts on a green clock-like indicator on the front panel. I presume this is a service indicator. Is the fault I've described very common - perhaps with a known solution?

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HAI,1.REPLACE SOME CAPICTORS IN HORIZONTAL SECTION.
       2.ADJUST FOCUS ON LOD(EHT TRANSFORMER).
       3.REPLACE HORIZONTAL OUTPUT TRANSISTOR.

Posted on Jul 06, 2008

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