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Sanyo Degaussing Circuit Problem
Working with a Sanyo DS-27530 27" CRT TV, late 90s vintage. Crazy degaussing circuit is giving me headaches! Problem: popped fuse, keeps popping fuses until the degaussing coils are unplugged. I've seen this problem before with a bad thermistor, so I changed it. Same problem.
Bypassed the fuse with an ammeter and have tried three different thermistors off of different boards (two and three leg which this board has provision for both) and at power up the degaussing coils stay energized until one of the main power resistors begins to smoke. Thermistor jumps from about 20 ohms cold to 150 ohms hot. Is there something I'm missing here?
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