Sony Bravia’s red light blinking 3 times mainly befalls the DC alert indication. If needed, replace the whole power board.If you still go through the problem, look through the power board.Also, check the power connections of your TV.If the red light is still blinking, factory reset your TV by holding the button & the button at a time till it restarts.Unplug your TV for 60 seconds, then plug it back in. First of all, perform a power reboot on your Sony TV.Loss of REG12V or loss of negative LED backlight voltage level can also cause a power board failure. ![]() ![]() This power board issue occurs when voltage is missing in resistors, there is dust on the power board, shorted transistor, or a burnt-up capacitor. Whenever there is an issue on the power board, Sony TV goes to the self-diagnosis function and blinks 2 times. ![]() Just keep scrolling through the article to know the Sony TV blinking red light codes in detail.
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