Question about Samsung HLN617W 61" Rear Projection HDTV

2 Answers

Turn off by itself

After TV is on, it goes off by itself and makes siren noise. If you turn it on again, it goes off again. What seems to be the problem and how do you fix this? Peter

Posted by golfhoon72 on

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Anonymous

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This TV set is not a set that has a high voltage transformer, or a horizontal output transformer. This is a DLP TV set. The problem you have is a bad color wheel inside of the light engine. I do have directions to replace this color wheel if you feel really adventurous. This is not a job for a novice though. If you want to take a look at the document I have, with the pictures, please leave an e-mail address and I will be more then happy to share this with you. Good luck

Posted on Oct 23, 2007

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Hello golfhoon72,

That siren noise might be coming fom your horizontal output trnasformer. The sound is caused by the arching of electricity from one exposed conductor (wire) to another. This could indicate a bad transformer (shorted winding). A good test for this would be a RING Test this allows you to see if there are shorted windings in a coil. There are numerous pieces of equipment which allow you to do a safe RING Test two of the are :
The LC103 Inductance and Capcitance Analyzer and the VA62A Universal Video Analyzer. These have an output for a RING Test. Now if you are adventureous you can build a ring test jig by using a capacitor a pluse generator and tow connection terminals. There are a lot of articals on the net about the procedure. Or what you can do is to take the set to a TV repair shop and let them worry about all of this stuff, the shop should have the equipment to test the Horizontal Output Transformer.

I hope This Helps,
Thank you,
Shuttle83

Posted on Oct 23, 2007

  • Anonymous Nov 05, 2007

    This fix should go to techman because after getting the diagrams for this model set, he is correct. It is a DLP and what I thought as a HV component problem whould be analogous to a light engine problem. Thank s techman, this one is yours.

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