The Samsung HL-S5086W turns off after about 20 seconds. The Standby/Temp, Timer, & Lamp lights will blink simultaneously and then it shuts down. We blew it all out to clean the dust, removed the back plate and blew that out too. Nothing seems to be working. Help!

<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 />