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How to fix the Samsung CS21C510CL CRT TV after switch on only one Sheree... Sound no picture and no sound but sometimes it's work good and

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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 May 19, 2017

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Posted on Jan 02, 2017

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SOURCE: How to fix my Samsung cs21c510cl CRT TV switch on but no picture and no sound but sometimes picture & sound is OK, what is the problem.

The power supply may be failing.

Posted on Apr 08, 2017

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SOURCE: How to fix Samsung CS21C510CL CRT TV switch on but only standby light blinking no picture and no sound.

Could be an open internal fuse or power supply failure.

Posted on May 18, 2017

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How to fix Samsung CS21C510CL CRT TV switch on but no picture and no sound only standby light blinking five times and then after few seconds it's starting again and again blinking and so on.


hi .
You can try replacing the power supply card and the video card .sometimes the power supply section has bad capacitors that need replacement .

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Check its solder terminal at the CRT board [Filament voltage]. It sounds like the filament do not glow after some time due to a loose contact at the CRT base connector sockets. Check it.
http://electronicshelponline.blogspot.com/
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