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  • CRT TV repair, power supply defect. - Google Groups

    Sep 23, 2011 · CRT TV repair, power supply defect. Showing 1-19 of 19 messages. CRT TV repair, power supply defect. . but almost everything in the power supply circuit has been replaced. I suspect the mosfet has taken out one or two more components in the switching circuit that I'm missing or could there is a problem with

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    No Power In LG TV Repaired. The complaint of this LG CRT TV was no power and as usual the first thing to do is to check on the main fuse. Before I could access to the main fuse, I found that the circuit board was full of dust thus I cleared all dust first by using a .

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  • Identifying Electronic Components – uCHobby

    Jul 15, 2007 · They are typically marked with an "C" on a circuit board. Inductors, also called coils, can be a bit harder to figure out their values. If they are color coded, the resources listed for resistors can help, otherwise a good meter that can measure inductance will be needed. They are typically marked with an "L" on a circuit board.

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  • How to repair SMPS and check its functionality? - Bayt.com .

    If the voltage is reaching the circuit board, then look for the fuse and see if it is blown, if the fuse is okay check also the surge limiter is open or not. If these two components are okay then most likely there is no short on the primary side of the power supply. Note: Short in the primary side of the power supply usually cause the surge .

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    Dec 29, 2016 · in this tutorial you have to identify the primary section in CRT TV and what ever the voltage present in side the primary section you have to check very easi.

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  • Circuits Of The Basic TV and What They Do - Part 1 | Techlore

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    Television: power circuits, Monitor & TV Power Supply, SMPS . Flyback transformer flybacks can be found in all types of monitors and screens that use a cathode ray tube (CRT), e.g. TV sets, computer monitors etc. A flyback serves several purposes in a TV set, mainly the generation of the acceleration voltage for the CRT (typically 20-30kV .

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  • No Power In LG TV Repaired | ElectronicsRepairFaq.com

    No Power In LG TV Repaired. The complaint of this LG CRT TV was no power and as usual the first thing to do is to check on the main fuse. Before I could access to the main fuse, I found that the circuit board was full of dust thus I cleared all dust first by using a .

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  • No Power In Philips CRT TV Repaired | Electronics Repair .

    Sep 28, 2015 · The complaint of this 21″ Philips CRT TV was no power. The first thing to do is to remove the cover and check the circuit board especially the fuse. Before I check the fuse I cleaned up the circuit board first that was full of dirt and dust.

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  • Sony TV power supply problem | All About Circuits

    Dec 27, 2010 · SONY CRT TV KV-EX34M69 Hello folks, greetings. I have a issue with my Sony TV 34 inches. When press the power button, the red light lits and blinks with the power relay on the power section switching on and off for more than half an hour. This .

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  • How to Salvage Useful Components from Old Electronics .

    How to Salvage Useful Components from Old Electronics . The most useful tool in removing electronic components off of circuit boards. • Solder wick: The wick aids in the removal of solder from PCBs. . • CRT monitors: While these items are challenging for novices to work with, at risk of getting a nasty shock, they contain laminated .

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