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Probable main power supply failure.
In all modern sets, there will be two power supplies; one that keeps the set enough alive to respond to the remote and a second one that does the 'heavy lifting' supplying several regulated voltages for different subsystems.
This latter one has failed.
If you can locate the main supply board, it may be fairly easy to remove to send off to the factory for repair.
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DO NOT ATTEMPT ANY REPAIRS, CALL THE FACTORY PHONE NUMBER IN THE OWNERS MANUAL AND FIND OUT WHERE TO HAVE THE TV SERVICED, IF YOU ATTEMPT ANY REPAIRS THEY WILL VOID THE FACTORY WARRANTY. THIS IS CAUSED BY AN ELECTRICAL FAULT INSIDE THE TV, IT SHUTS DOWN AS A SAFETY FEATURE TO AVOID ANY FURTHER DAMAGE.
<img src="mas_baz.jpg" /><br />There are three LED indicators. LAMP, TIMER, STANDBY/TEMP. Each Led or combination leds indicated problem.<br />
<ul>
<li>LAMP blinking : The picture will automatically appear in about 15 seconds.</li>
<li>TIMER and STANDBY/TEMP blinking : A cooling fan inside the set is not operating normally.</li>
<li>LAMP and STANDBY/TEMP blinking : Lamp cover on the rear of the set is not properly shut.</li>
<li>STANDBY/TEMP blinking : Check if the ventilation hole on the rear of the set is blocked, because if the inner temperature is too high, the power will shut off.</li>
<li>All LED blinking : Lamp may be defective.<br /></li></ul>It takes about 30 seconds for the TV to warm up, so normal brightness may not appear immediately. The TV has a fan to keep the inside lamp from overheating. You'll occasionally hear it working.<br /><br /><br />
It could be the temp sensor going bad. This sensor sits on top of the
metal housing which the bulb assembly slides into. The bulb assembly
will have a hole on top and this is where the sensor is above. There is a
small blue and white wire that plugs into it. If you pull the wire out
and put a paper clip or wire in the coupling you will basically bypass
the sensor connecting the blue and white wire. If your tv turns on then
that is your problem. Its cheap too. Here were my symptoms..1] Turn tv
on 2] Bulb would light up..(which eliminates the ballast) regular
picture would show up (which eliminates the bulb and color wheel) 3] 30
seconds later tv would shut down with 3 flashing lights. After bypass
the tv turned on as always and hasnt shut down yet. Always un plug tv
first. Get the replacement part to avoid overheating and possible fire
The description sounds like a protection mode has been activated and the smoke obviously confirms this. Sounds like it will need to be inspected by a service technician and could get expensive
When it shuts down, do the LEDS on the front blink? There are 3 of them. Standby, temp and lamp. Do any combination of the 3 blink when shuting down. I could tell you where to start just by those lights blinking.
The 3 lights on the tv are there to help you diagnose the problem. There should be Timer, Lamp, and Temp. If all 3 are blinking, the LED may be defective. If standby and temp are blinking, it's a problem w/the cooling fan. Let me know if that helps.
you have the same problem I have. The problem is fixed by changing the new light bulb. The problem appears again after 1500 hours of use. You can keep buying new light bulbs or avoid it by not buying another Samsung TV.
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