Question about LG RU-44SZ61D 44" TV
Before starting, Operation indicator is red (TV is in standby mode). When power button is pressed, Operation indicator flashes orange (as it should). After about a minute, Operation indicator turns green(as it should) and after a few more seconds the sound comes on, but no picture. After about a minute, the TV shuts off, the Operation indicator goes red, and the Lamp function light flashes red (Indicating a problem with the lamp or around it)for about 5 seconds then goes off. I replaced the bulb for the third time about 2 months ago. The Lamp indicator does not go orange which would indicate the lamp is nearing the end of it's life. The TV is a bit over 9 years old. I removed the bulb, and it looks fine (no haze, or cracking, etc.).
I think your Display card not proper work so please contact LG Technician.
Posted on Feb 17, 2014
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Posted on Jan 02, 2017
SOURCE: Is my lamp out on my LG?
Most likely you can have 1 or 2 problems.
1! the light is busted and you will have to replace that. You might also need to check your cooler fan bearing as you indicate it makes noise.
Please open following link( you need acrobat reader)
this is the service manual for your TV
Posted on Apr 30, 2008
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Nov 26, 2017 | Televison & Video
In most cases the standby light might blink with different rapidity to indicate a fault relevant to the processor. It is possible that most of these indicate that there are errors in the processing section . Since there is a possible short or leak in the circuit the output driver section can take in huge current to trip the SMPS or from advice from the micro processor. Remove the power plugs and make sure that high voltage sections are discharged of the potential stored in capacitors. Look for visible signs of leak or of busted capacitors. Look for bulged capacitors or damaged components- burnt or busted. Use a multimeter to check the continuity or shorting in components, if so detach from circuit and test . If the voltage builds up and the set power ON and then shuts up then the suspected section must be checked in detail.
The processor must have the +5 voltage to the function properly , the +B and secondary voltages also must be checked to infer the fault. Trace with caution and in running through the signal path , circuit trail.
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