Asm after 3 sec

Fault at its main digital board. Short circuited component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Pull up older posts. http://electronicshelponline.blogspot.com/ In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.

bad High voltage NPN power transistor
throw out the tv - get another one at a thrift store for $20 - I have seen sony wega at this price or free on craigslist

Replace its system memory IC.

i think you should check sleep mode on your TV remote.
set the time on this mode.

hope it will help to rectify the problem

The dome lamp has a switch that can be put into several positions. "Door" "Off" and "On" If you want the light to come on when you open the door then you must have the switch in the "Door" position.
The "Off" position will only let the dome lamp work when you override it with the dash control and the "On" position will leave the light on at all times - door open or not.

asm after 3 seonds solution

Try this:
1) turn on the TV
2) from the remote control press MENU 2,4,7,0 then ENTER
3) tv will state on screen that it is INITIALIZING
4) when done press the front reset button.
5) should be good to go!

if your tv is a panasonic, you need replace stk ICs. if you need help in the future, please provide model number tv,'
Thank you

TV turned off and will not turn back on.

what model of Sony is it? On many of the Sony projectors, a 3 flash error code indicates the lamp is not properly seated/installed or the lamp door is not closed properly