Sony BRAVIA KDL-40EX600
Failure symptom: No power
Upon diagnosis of the power supply I found that power MOSFETs Q6101 and Q6102 were shorted between source,drain and gate and fusible resistor R6536 was open. Power MOSFETs Q6101 and Q6102 were 2SK4096 , 8 amp, 500 volt, N channel MOSFETs and were replaced with substitutes, FQPF9N50CF 9 amp, 500 volt MOSFETs. Resistor R6536 was a 1/2 watt 0.47 ohm fusible resistor.
After replacing the faulty components and installing the power supply the TV turned on and was completely functional.
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