Question about Televison & Video
Hi and welcome to FixYa,
Initially, your described problem indicates that one of 3 color drive transistors (for the green) has developed either a cold solder (most likely) or an intermittent internal fault (leak). These transistors (or in some cases a single power pack module/IC) are normally found on a small squarish PCB (printed circuit board) at the very rear of the picture tube (CRT). At times, the green blank screen would also have diagonal fine lines or would appear to be overly bright.
In some rare instances, it could be the chroma section (least likely) or in worst case scenario the CRT (cathode ray tube) itself that is faulty (hope not).
Check and perform preliminary visual or necessary inspection. Pls post back result(s). Good luck and Thank you for using FixYa.
Posted on Jan 18, 2009
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Posted on Jan 02, 2017
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