Question about Televison & Video
There is an automatic de-gaussing circuit within the TV and it's likely to be the culprit. When the set is first turned on (before you even see a picture) this circuit is active and as it warms up, a thermistor opens up and stops the circuit from operating. It does this because as it heats up it's resistance rises and the circuit stops the current flowing through the de-gaussing coil. Over time from the heat/cool cycle, the connections to the circuit board fail. Simply re-soldering the thermistor is probabaly all that's needed.
Posted on Oct 09, 2008
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Posted on Jan 02, 2017
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