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SMPS Is it a modular type power supply or does it have to be part by part traced out for repair?

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Yes It comes As next to the incoming supply to UNIT ; Where the main POWER 220 V or 120 Volt is supplied.

Posted on Mar 15, 2008

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Posted on Jan 02, 2017

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I have an 55 inch Emerson TV, it would not come on it make a buzzing noise, what could that be.


This is most likely a part that has failed in power supply. If you have the time and expertise you can take it apart and troubleshoot and repair it. You need special gear and soldering ability, if you don't have the time, you can order a new power supply and put it in, you can also call for a service technician to come out. THis is not cheap to have service come out. With a television that large though, you don't have a choice. IF YOU decide to move it to a shop, you CANNOT lay it flat!! The screen will bounce like a trampoline and it will break.

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Toshiba 32bv500b shady screen lines across screen is it the t con board is a way


Back - light problem. If the back-light type is CCFL lamp, check all the CCFL lams for weak emission. Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis. http://electronicshelponline.blogspot.com/ To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement. To some models sets, the back-light inverter and SMPS section circuit will be integrated at its main board itself. If so; the main board should be replaced. To some models of sets, all these section circuit will be integrated at its main board. If this is the case, you have to replace the main board.

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1 Answer

Samsung 46inch has no picture but sound, what board is needed to repair


Back - light problem. Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis. http://electro-medical.blogspot.com/ To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement. To some models sets, the back-light inverter and SMPS section circuit will be integrated at its main board itself. If so; the main board should be replaced. To some models of sets, all these section circuit will be integrated at its main board. If this is the case, you have to replace the main board...

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1 Answer

My Primus FS55 has power but nothing is showing up on the display panel


Back - light problem. Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis. http://electro-medical.blogspot.com/
To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement. To some models sets, the back-light inverter and SMPS section circuit will be integrated at its main board itself. If so; the main board should be replaced. To some models of sets, all these section circuit will be integrated at its main board. If this is the case, you have to replace the main board.

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2 Answers

Vizio tv 37" picture started to get darker


Back - light problem. Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis. http://electronicshelponline.blogspot.com/ To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement. To some models sets, the back-light inverter and SMPS section circuit will be integrated at its main board itself. If so; the main board should be replaced. To some models of sets, all these section circuit will be integrated at its main board. If this is the case, you have to replace the main board.

Jan 11, 2017 | Vizio Televison & Video

1 Answer

Can you repair a 24 inch BUSH smart TV/DVD.


Main power supply regulator board (SMPS board) fault. Check and replace it. If you wish to get more details visit the site linked here. http://electronicshelponline.blogspot.com/
Search the site by type in the brand name of your device in the search box at the top of the home page, to get gathered all the related posts.

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I have an RCA model LED42C45RQ with a blank screen. I have audio, no back lights, but I can see a picture on the screen with the flashlight test. What do you recommend replacing? Thanks


Back - light problem. Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis. http://electronicshelponline.blogspot.com/ To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement. To some models sets, the back-light inverter and SMPS section circuit will be integrated at its main board itself. If so; the main board should be replaced. To some models of sets, all these section circuit will be integrated at its main board. If this is the case, you have to replace the main board.

Dec 31, 2016 | RCA LED42C45RQ 42" LED TV 1920x1080, 60...

2 Answers

I have a samsung tv un46eh500 with sound and a dark image...is it backlights?


Back - light problem. Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis.
http://electro-medical.blogspot.com/
http://electronicshelponline.blogspot.com/
To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement. To some models sets, the back-light inverter and SMPS section circuit will be integrated at its main board itself. If so; the main board should be replaced. To some models of sets, all these section circuit will be integrated at its main board. If this is the case, you have to replace the main board.

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