Question about RCA TruFlat 27F520T 27" TV
I have no picture and when the tv is plugged in it makes a high pitched squeel
The high-pitched squeal usually indicates that the horizontal drive circuit has failed as a result of a dead line-output transistor. This symptom indicates that the control circuit of the main power supply is trying to over-compensate for a greater than usual secondary current. Certainly, an inspection of the line-output transistor will show that it's most likely dead. Sometimes instead of the squeal you will hear hiccups instead. Focus your attention on the horizontal circuit.
Posted on Jan 11, 2008
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Posted on Jan 02, 2017
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