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Re: TV SAMSUNG 61 IN. HLN617W
Sounds like it is overheating. It has a sensor that monitors light engine temp and causes a shutdown. Possible causes are:
- dirty ventilation fan filters.
- cheap lamp that makes too much heat
- faulty temp sensor (I don't think this model is known for this)
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It sounds like the main power supply has a bad capacitor. its a typical issue with a lot of electronic. look on the main power board that the outlet cord comes in to the TV and check all the cylindrical components for swelling, leakage, or singe makes.
Red light comes on but then the tv is playing but after about 3 hours it just goes out but I can still hear the sound then if I go back after about 4 to 5 hours if I turn it on it plays no problem. Now the lamp just went. I think before replacing the lamp maybe I should replace cooling fan also.
Had similar problem. Thought it was the lamp. Examined old lamp but it appeared to be good. Ordered a new one anyway. Changed the lamp but the TV screen would not come on. It would make the usual noise as it was going to come on normally but it would cycle 3 times & then turn off. The LED lights in the front panel would indicate a defective lamp. Then read about the ballast. Changed the ballast & still same problem. Tried starting the TV without the lamp installed & noticed that the color wheel did not spin. Removed old color wheel & discovered it was broken. This appears to be the cause of all of my problems. I wish I new earlier of the test-turn on the TV without the lamp being installed & check to see if the color wheel is spinning. Would have save money on the lamp & ballast.
The lamp is finished. Order a new lamp using the code on the side of the TV. Remove the lamp door on the back of the TV (4 screws) and then remove the lamp (1 screw). Have a look at the lamp... is it damaged? See my tips & tricks if you want to learn more about the lamp.
Most of the time when these sets won't turn off it's caused by the DMD but check the color wheel connectors first, especially the flat ribbon cable. Make sure it's in the connector in the correct direction, only has contacts on one side and make sure the ribbon is not torn.
Most likely for this symptom is the lamp. If you'd like you could sit behind the set and have someone turn it on, you should hear the color wheel spin up and then you should hear the ballast try to fire the lamp, it makes a small arcing sound. If the lamp doesn't light the process starts over again.
Problems with the lamp door detector switch. Try jumping out this switch and running it for a while. The switch is the small switch with the blue rocker arm activated by the tab on the lamp door panel.
How old is the unit?
ever replaced the lamp?
Sounds like a major power supply failure
Hope you are under warranty
Samsung has lots of problems with this technology
Here is their phone for executive customer relations: 1-800-522-7341