AA++© Samsung Main Board Repair Service. BTW these block PSUs are SMPS. Most people find replacing the blown microchips to be pretty simple. Samsung Smart TV User manuals On this page you can find and free download service and repair manuals for Samsung TV. BN94-01628U BN97-01985U TV Cycling On and OFF $ 45.00 BN94-02077A BN41-00975B TV Cycling On and OFF $ 45.00 BN94-02017A BN97-02407A Screeching, TV Cycling On & OFF $ 45.00 This is a repair service for your main board With the above symptoms only. Repair to my power board was Perfect. Otherwise you will be shooting in the dark as where to start to check and this will cause your time lost. For the power FET I got it from another TV junkboard.After fixing the two components and powered On, the TV came back to life. The YZX load is good to 3A which is good enough for most power supply blocks.Great job Suranga and a good suggestion from Ali too. If you want to be excel in LCD/LED TV repair you can check out on Kent’s and Damon’s ebooks. You can check out the two photos below:For a no power symptom TV, the first thing to do is to check the output dc voltage from the external power adapter. Great work however in finding the issue here and getting this TV up and running again.That's true. Repair service involves you sending in your main board for repair and then it is shipped back to you at no charge, usually within 24 hours. I was very happy because there was no other bad components. This LG LED 24 Inch TV came in for repair with the complaint of no power. This component acted like a fuse and will open circuit when there is a over current drawn.Once this protection resistor was open circuited, we have to find out what causes the problem. PTS Electronics has been performing top-quality testing and repair of television main boards and other electronics for more than 45 years. If available, please place your board in an anti-static bag, and wrap your board in suitable padding (bubble wrap, paper, etc. Another job done and earn some profits.Conclusion- Don’t immediately repair the TV mainboard or any other mainboards unless you have carefully studied how the mainboard works. The photo below is the LED TV mainboard:Usually for this kind of problem I will start to check from the Power Jack area first. I use incandescent car bulbs in series for this particular PSU. Our end-to-end services include returns management, core management, sub-assembly repair, whole TV repair, integrated forward distribution and e … Otherwise, you probably want to just replace it. The RT809H can and much more!What a nice trouble shooting, great-work and all the best.Sometimes measuring the voltage on power supply blocks aren't enough. Since even laptop mainboards, desktop computers and gameconsoles (like the XBOX360) can't work without them it is very good advice. Fast secure safe TRUSTED. If you want to be excel in LCD/LED TV repair you can check out on This article was prepared for you by Suranga Bandara who owns an Electronics repair shop in Anuradapura, Sri Lanka.Please give a support by clicking on the social buttons below. Samsung TV Main Board Replacement. I bought Damon's and Kent's newest tv repair e-books. Your feedback on the post is welcome. For this model, it did not use the switch mode power supply board and in fact it uses an external power adapter that was rated 19 volt -1.6 Amp. Also here are more than 500 Samsung TV schematics diagrams ! All Rights Reserved. Otherwise you will be shooting in the dark as where to start to check and this will cause your time lost. The voltage may be good but it doesn't have the amps So for me the best way to test these PSUs are the put a load on it. New 100% Genuine Samsung Factory Original Samsung TV Main Board, Samsung TV Mainboard & Samsung TV Motherboard Replacement | In Stock. If you have any questions, contact us first.Repair service involves you sending in your main board for repair and then it is shipped back to you at no charge, usually within 24 hours.This worked !!!
ThanksExcellence. I checked on the protection SMD resistor (R100=10 Ohm) and it was open circuited.