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I had the balast taken out of the Toshiba TV # 62HM15A. Reason being, there was no picture -- just black screen, after power on, green light appears then green light blinks then it makes cliclk and clack noise then it automatically turns off. It starts itself and go thru same sequence of events. The Balsat p/n 23122497 sn 057064358. The question is how to test it ? I alrady replace the bulb but no avails.. I am supposed to send the lamp back and get it replaced -- before i do that -- i want to make sure the balast is ok before proceeding . Where can i get new balast and reasonable price. Thanks

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Hi, the word ballast is rather a misnomer in flat screen tv's, reason being flat screens have what are called cold cathode fluorescent lights in them, and there are usually more than one-it has been my experience that the power supplies that drive " ballast's " are what can go soft-and sometimes the power supply has the ballast right on the same board, you can try reducing the brightness to keep set from resetting-that'll tell you if power supply if " soft " on not. also-i have used a different piece of equipments " ballast " to power another-i once used a H.P. pocket pc to power flat screens bulb temporarily for just the same reason, to determine if bulb or ballast was in err. New " ballasts by the way run around 150 if i'm not mistaken they aren't cheap unfortunately. Hope this helps, PRODZILLA

Posted on Mar 31, 2011

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