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Make sure its an original Osram or Philips bulb inside the housing. If its a cheap lamp it will act this way. If it is an original lamp, then you may have a power supply issue. It shouldn't affect your TV but you may want to try resetting the lamp timer by following the instructions that came with the lamp.
TY-LA1001 Timer reset
While pressing the VOL- button on the projection display, hold down the number 0 button on the remote control at the same time for more than 5 seconds.
Hello,
the error light sequence that you are seeing is indicating a "backlight error". Most likely you have a bad inverter board -the board that powers up the back-lights behind the display panel. They might be available via ebay if you are a DIYer, or you need to call for sony service.
Good Luck!
Rich Lilja
It sounds that the main digital board has damaged. 12 blinks indicates it. if you wish to know more check this link for more details about 12 blinks to Emerson TVs
Tries tv unplug,replug it back about an hour later.The tv,now should reset itself back to factory setting.The tv should work now,not than the power supply board is dying,not giving the right voltage to the rest of the tv anymore.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish power supply board for the replacement.
this is common issue with this model and through your troubleshooting is tied to y main board. blinking led on logic main in normal operation. when replacing y main always good idea to replace y upper and lowe buffer boards as they complete a circuit and sometimes replacing one without other could cause additional failure on remaining boards
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