Question about Samsung Televison & Video
High voltage is needed to power the screen. Check the high voltage circuit. Take off the rear panel. The high voltage is need where the 120 volts. There is a high voltage transformer and on the output the volts should equal at least 390 volt DC - check it at the capacitor. If not, check the capacitor. The one in the TV is 100 uf rated at 450 volts. I put in a 370 uf rated at 400 volts.
Posted on Jan 01, 2018
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Posted on Jan 02, 2017
This fault is in protection circuit.First check the 125V.D.C at sm out voltage.then eprom I.C.(memory) & Set the parameter by opening service mode Stanby>Display>Menu>Mute>Power on if require.
Posted on Jan 12, 2012
Testimonial: "thanks Srinibash Kar sir ..."
Check all the voltages at its video output card [CRT base PCB] If all are found OK, check and replace the chroma IC. The most probable cause is defective IC itself. Check its heating effect. Will overheat within minutes after the set is switched ON.
If you wish to get some details; check the site linked here. Pull up older posts.
Type in this key phrase " my service table today " in the search box at the top right of the display window of the home page, to get gathered some pages which has the details of practical experiences of the author of that site.
Posted on Aug 29, 2016
SOURCE: sinck problem
Check and replace damaged component/s at its horizontal scan output section circuit. Check the LOT (Line Output Transformer) too for damage. Replace the horizontal scan output transistor. Check the input voltage to LOT. If the voltage is absent check the feeder resistor; if any. If you wish to get some details; check the site linked here. Pull up older posts.
http://electronicshelponline.blogspot.com/ Type in this key phrase " my service table today " in the search box at the top right of the the home page, to get gathered some pages which has the details of practical experiences of the author of that site. The search result might display about 20 Nos of related posts. Press the "All posts" at the bottom of the list, then you can select them one by one.
Posted on Aug 11, 2017
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