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.Surf the site with patience.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.
Before going further; try a hard reset first.If it does not help you, replace the main digital board.There are two methods to reset TVs.The first is simple to do; a Hard Reset.The other is somewhat skilled; is a Factory ResetF (System Reset). To make it a hard reset, just unplug the TV from AC mains wall socket, and re-plug it back after 15 minutes or so. If you do this by overnight is better. This procedure will make it a hard reset.If you want to make it a system reset [Factory Reset]; you have to enter its service mode option, and select the factory reset option.If you wish to get some details; visit the site linked here.
SOURCE: TV turn on and off
Your TV has a power problem, it maybe high or low supply voltage that causes the TV to turn it self off because of an error. A technician from the manufacturer knows what error it has just by looking at the flashing standby light. Best is to take it to an authorize service center for repair... ^_^
SOURCE: standby light flashes 3 times
A 3 flash pattern indicates that either the lamp is not seated correctly or that the lamp door is not latched properly. It can also be a fault with the switches that sense whether the lamp is seated or the door is latched. Try reseating the lamp and relatching the lamp door
SOURCE: My TV is going into standby mode whenever it is turned on
My screen turns black and the TV goes into standby mode (I get an Amber Light) within 3 seconds after turning the TV on.
SOURCE: Sony Bravia turns off by itself
Replace the BU Mount pcb. Sometimes they are called the FB pcb.
SOURCE: hitachi l32hp04u a my
hello coopa mark, usully it indicates on a powwer suplly problem.
some times its a bad capacitors
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