I have updated my phone to Android 4.0 and after the update finished my phone was okay. Three day later while I was playing facebook on fb application my phone was error and I can not do anything even turn it off. So I decided to remove the battery and then put it to my phone and press power button but it's not working. There was no "SONY" on the screen and no vibration. I could see only the blink of notification LED.
SOURCE: TV not working
the symptom is usually caused by a breakdown in the power supply circuit. in most modern receivers (transistorized and/or ic), it may also be caused by a breakdown in the horizontal deflection circuits (hor. oscillator, pre-drive, or drive circuits). supply voltages for the tuner, video if,sound if, and vertical output are usually supplied by the horizontal output circuit. but if you doesnt know anything about these stuffs, better bring it to a qualified service tecnhician.
SOURCE: Power LED blinks red
it is a bad fan. it also could be a power supply. Quite often the real problem is dirt clogging up the fan(s) to the point that they need to be replaced. Operation of the set in a dirty environment is not a good idea
SOURCE: Sony KDS-60A2000 projection TV: power led blinks 4 times
the projector bulb has gone out you need to replace it.
hope this helped
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SOURCE: My z310a Sony Ericcson's screen is blank.
i had the same problem, just wiggle the top half of the phone like you wanna break it (but don't break it) The problem is a loose wire between the two phone parts... wiggle it.... just a little bit
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