I've got a Sony 55EX500 with a 6 flash error indicating a problem with the backlight circuitry. I have opened up the panel and all the tubes work. I have also tried replacing the inverter board which has not worked and checked all the test points for an over-current error but nothing. The D1 board is also getting 375v DC from the power board as it should.
The TV powers on for about a second displaying the Sony logo and playing a startup tune but the logo appears dim. The TV also makes a buzzing sound which at first I thought was coming from a small buzzer on the D1 board but I now believe after listening as more closely that the buzz is coming from the transformer.
On two of the transformer legs there is dis-colouration suggesting a short. I've just waited 2 weeks for the inverter board to come from the US and even with Express shipping for a D1 board I don't really want to wait. Are these transformers available at electronics shops?
The TV powers on for about a second displaying the Sony logo and playing a startup tune but the logo appears dim. The TV also makes a buzzing sound which at first I thought was coming from a small buzzer on the D1 board but I now believe after listening as more closely that the buzz is coming from the transformer.
On two of the transformer legs there is dis-colouration suggesting a short. I've just waited 2 weeks for the inverter board to come from the US and even with Express shipping for a D1 board I don't really want to wait. Are these transformers available at electronics shops?
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