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Str f6707a circuit diagram

When tv on then few finuits running .but then suddenly off then later are not running same day.

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People who repair tvs for a living rarely need a schematic Most problems are aging electrolytic capacitors. Failed voltage rectifiers or voltage regulators, high voltage section problems (including very low ohm resisters or wire wound resisters) X-ray protection circuits or the fly-back transformer. Each has their own symptoms, and methods of troubleshooting.

Posted on Oct 20, 2013

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Posted on Jan 02, 2017

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1 Answer

LG tv str w6754 glows and short. power supply is not working?


Replace that STR. Before replacing, check all the related component/s at the SMPS section [HOT] side. any one damaged component will make the replaced STR to fail. If you wish to get some details; check the site linked here. Pull up older posts.
http://electronicshelponline.blogspot.com/
SMPS Circuit diagrams [STRW6754] of many popular brand TVs and other devices are given.
Search the site by type in the "BRAND NAME" or the STR number; of your device; (Exclude the model number), in the "Search box at the top right of the display window of the Homepage" to get gathered related posts.

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Str f6707a circuit diagram


If you wish to get some details; check the site linked here. Viewing it in "Mosaic" or "Magazine" will make surf easy Pull up older posts. Surf the site with patience.
http://electronicshelponline.blogspot.com/

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Str f6707a circuit diagram (power on power led glow but power led off after 1 second)


LG may be able to supply a circuit diagram that will enable you to determine the cause of power supply failure.

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Lg tv str w6554a power supply problem find


If you wish to get some details; check the site linked here. Pull up older posts. http://electronicshelponline.blogspot.com/ Circuit diagrams of SMPS section of many popular brand devices are given. Search the site by type in the "brand name" or the "STR number" of your device, in the "Search box at the top right of the Homepage" to get gathered related posts.

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JVCTV


strf6709a must be the power regulator

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1 Answer

During dark images on my TV, several green lines are visible across the TV.


You may have an arc in the screen and focus circuits. Water may have gotten into these circuits causing a delayed reaction. (Circuits Corroded). These circuits at least part of them are a part of the high voltage transformer (flyback). Your picture tube socket has spark gaps inside of it too which may be arcing. You need to have it checked by a tech to find out just what is arcing. Stargazer

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