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Power SMPS dead monitor

Power SMPS regulator burnt (DP 704c)

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Accer moniter 17,pawer suplly str.no.

Posted on Dec 31, 2011

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Change the SMPS this is replaceable part and make a clean passage for air so that SMPS do not get burnt over

Posted on Feb 13, 2010

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I have a Philips 170B7 monitor. The power is off and on automatically.


Fault to the main power supply regulator board. Check and replace damaged component/s at its main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts.
http://electronicshelponline.blogspot.com/

Jun 14, 2015 | Philips Computers & Internet

1 Answer

How do i fix a tv sanyo DP 42849 IS NOT TURNING ON


Fault with the main power supply regulator board. Check and replace damaged component/s at its main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts.
http://electronicshelponline.blogspot.com/
It will be best to replace the power supply regulator board as card basis rather than making "Surgery" to it; which usually will make loss for both money and time. Even though you can make it right, it will cost around an amount equal to the cost of a new board; including the cost of (spare parts + service charge) More to say, most of the spare parts to it will be difficult to get from open electronic spare part market. This is true to most of the flat panel TV power supply boards; irrespective of its brand and screen size.
Electro help

Nov 13, 2014 | Sanyo Televison & Video

1 Answer

STR3BR1065 NOT WORK POWER SUPLY IS DEAD


Fault with the main power supply regulator board. Check and replace damaged component/s at its main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts.
http://electronicshelponline.blogspot.com/

Aug 19, 2014 | Televison & Video

1 Answer

Smps colour


Okay; first off an SMPS is any number of power supplies used for electronics. So this is a very vague question. In a computer power supply to an IBM or PowerPC based motherboard (the later is now obsolete and no longer in use for most new computers) there is no one power supply "wire". Most video cards are powered via PCI port through the motherboard power supply connection.

Some very high power high end video cards and some SLI/Bridged cards require their own power source and this is usually a 12 volt rail much like the ones used for SATA power supply.

In a monitor, each make and model can be different depending on who supplied the power supply. The internal power cords can come in different colors. Though the standards are black white blue and green and red. Most displays don't use colored cords for connecting to the main board of the display. They use a 8 or 10 pin ribbon. Most of the colored wires are linking the main inducer to the LED back light.

If we're talking about the internal workings of an SMPS (Switch Mode Power Supply) there is no "display" wire. SMPS internal wiring is all about controlling and routing power to the different rails (that is the different power connectors). Never open an SMPS case, especially if it's plugged in. Switch-mode power supplies have capacitors that can provide a rather nasty charge, and several inducers that can hold a charge well after the power supply has been unplugged. Never service an SMPS on your own, always seek a professional when attempting to fix an SMPS. Though, for the most part, fixing a burnt out power supply is a waste of time, it'd be best just to buy a new one and recycle the dead one.

Oct 11, 2013 | Computers & Internet

1 Answer

I am able to turn on cpu but the monitor is not displaying it. Power is coming, Two fans are running in C.P.U. Some times fans not work. Kindly suggest me why this happens and give the solution for it.


093aba5.jpgYou have a problem with your SMPS. Kindly send your SMPS to a repairing shop. If the guy suggests you to buy a new SMPS then there is hardly anything that u can do instead of buying a new one. I had the same problem once had to replace the SMPS as even after two repairs the SMPS wasn't working properly. There is a prob with the switching regulator for sure if your monitor works perfectly then.

Sep 24, 2010 | Computers & Internet

2 Answers

Brightness and contrast increases suddenly


Check following:
1- VGA chord; is it loose or faulty?
2- Power Supply section not regulating perfectly.
3- Supply line from SMPS/Regulator power supply to EHT.
4- Brightness lines and controls (Resitance may be dry soldered or burnt)
5-Pin connection on rounded board of CRT neck may be loosed, Check it if loose than fit properly.
6- Adjust the precet for accelearting and focusing anode externaly fixed with EHT if inbuilt in EHT than only solution is to replace the EHT only.

Feb 15, 2010 | LG Computers & Internet

1 Answer

Omron hem-704C blood pressure monitor show down


If your HEM 704C fell hard, it is probably the pressure transducer that is faulty, broken. To my experience it is cheaper to buy a new one then to have it repaired by a technician

Dec 04, 2009 | Timex Health & Beauty

1 Answer

Gateway FPD1960 TFT LCD Color Computer Monitor suddenly went dead


The main power supply regulator section circuit fault. Either it will be a separate board, or the part of main board. Check and replace damaged component/s at its main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Pull up older posts.
http://electro-medical.blogspot.com/
http://electronicshelponline.blogspot.com/
It will be best to replace the power supply regulator board as card basis rather than making "Surgery" to it; which usually will make loss for both money and time. Even though you can make it right, it will cost around an amount equal to the cost of a new board; including the cost of (spare parts + service charge) More to say, most of the spare parts to it will be difficult to get from open electronic spare part market. This is true to most of the flat panel TV power supply boards; irrespective of its brand and screen size.
Search the site by type in the "brand name" to your device; in the "Search box at the top right of the display window of the Homepage" to get gathered related posts.

Apr 05, 2017 | Dynex 19 in. LCD Flat-Panel HDTV

1 Answer

15" CRT Monitor samsung totally dead


Dear munu007 good morning this is viswanath

Don't worry I can salove UR problem

1.First U can check any physical damage in power supply (220/400v)Main capacitor,
2.And also check LOT It's OK Than Remove H O/p Transister, check SMPS output voltages ,voltages are currect That means SMPS is OK.Check Boosting FET IRF630(Q402)Change it New One,and also change the IC604 7805 Regulator.
Finally change LOT.
check any dry points (SMPS&Hori.)

Oct 08, 2008 | Samsung SyncMaster 551 15" CRT Monitor

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