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Two things to look at---------the lamp to see if shattered inside AND with it removed look where it faces at the color wheel--see attached photo.
Look to see if any segments are broken, missing etc. Many of the wheels fail in this way and some will have a high pitched or even fan like sound before they fail.
Some when really bad will make a grinding noise also. The set monitors the speed of the wheel and if it slows or stops the set will almost instantly turn the lamp off(if possible watch from area where lamp is to see if at turn on to see if it for a moment lights or not.
If the lamp and standby lights are both flashing and the timer light is off, check that the lamp cover on the back of the TV is properly positioned in the groove and secured by the screw. Take it off and check that the screws that hold the lamp itself are secure. There is an safety feature that keeps the lamp from turning on when the lamp cover is off.
If the three lights (timer, lamp, and standby) are blinking, then the lamp needs to be replaced. If the timer and standby lights are blinking and the lamp light is off, then a cooling fan isn't working. When only the standby light is blinking and the other lights are off, the unit is overheating and a ventilation area may be blocked.
I have not repaired this particular model. But sometimes there is an IC they refer to as a standby IC. It may also be known as a controller IC. I call it the powerline regulator. And in one case the older Sony Projection TV had an audio output IC with a standby built into this IC. So,this advice is refering to a standby IC. And this IC may be in another form already mentioned. Please visit a Sony Tech. The work inside a projection TV is very complicated, you will need to see the specialist. Give them this note and go from here. Let me know how they handle the repair.Thanks for asking and good luck!