Question about Samsung SF-3100 Plain Paper Inkjet Fax

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It cannot opens

The problem is that for the last couple of days it is not working.The smps(switch mode power supply)have been burnt out.Can you replace/repair the smps?or any solutions?Also tell me the kolkata servicing address or mail id.If you please tell me about the expenditure assosiated with the repairing. Thanking you, Kthakurata Production Engg M.E.X-Ray India Pvt Ltd, Joka,Kolkata-104

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Posted on Sep 23, 2007


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My 42 inch Sylvania hdtv turns off after I turn it on

All of the new HDTV sets these days use a switch mode power supply (SMPS) to delver the proper voltages to the associated circuits. If the set turns off on its own chances are its in the power supply area. Start by checking the connectors attached to the circuit board for physical signs damage on the circuit board. Possibly a blown fuse, open resistor etc.
Hope this helps

Oct 24, 2013 | Sylvania 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

2 Answers


Any bulged capacitors? If so- they caused the fuse to blow. If nothing is obviously showing fault, check the capacitors in the main portion of the power supply for shorted condition. Also look for failed resistors, and shorted TVS

Dec 20, 2011 | Televison & Video

1 Answer

IT Won't power up.

Possible failure of the main power supply unit which is a switch mode power supply.( SMPS).
You need to disconect the power supply to the printer and open the panel to check the SMPS unit.

Please check on the link below for tips to check the SMPS unit. If this is not possible check with a power supply unit to confirm before you order.

Jul 29, 2011 | Kyocera Mita FS-C5016N Printer

1 Answer

Ive had this bluray player for 2 years and it was working fine, then one day i tried to turn it on and nothing happened. i checked if the fuse was blown but i appears to be fine. so there is no power...

there is possibility of two complaints.
1, The SMPS power supply fault
2. the mother board fault.
if the SMPS is faulty the you can rectify the problem. If it is with the mother board the you have to contact the manufacturer .
First of all you have to check the SMPS ( switch mode power supply). you have to check the voltages at it secondary stage. 5v, 12v, etc
switched-mode power supply (switching-mode power supply, SMPS, or simply switcher) is an electronic power supply that incorporates a switching regulator in order to be highly efficient in the conversion of electrical power. Like other types of power supplies, an SMPS transfers power from a source like the electrical power grid to a load (e.g., a personal computer) while converting voltage and current characteristics. An SMPS is usually employed to efficiently provide a regulated output voltage, typically at a level different from the input voltage
for checkin the SMPS voltaes you need a multimeter. And check the voltages at it secondary stage
Added the inside view of BD 1600

if there is no outputs from the smps then you have to replace the SMPS drive STR ic near the big capacitor. Also ty to replace the OPTO coupler ic. y have to check the all resistors near the ic.

Remember one important thing that the capacitor can hold charge for some time even if you disconnect the power. so after removing the power. remove the SMPS very carefully. discharged the capacitor using a bulb.
i have also added a video for SMPS working for you reference will hep you for repairing your one


Apr 07, 2011 | Samsung BD-P1600 Blu-ray Disc Player

1 Answer

Since a recent power failure the printer will not turn on.

It is possible that the power supply in the printer has failed. You will need to open the power supply unit whichcis within the printer. Open the panels and get acess to the power supply which is a SMPS- switch mode poweer supply. Start from the fuse, the surge protector which could be short or the mains rectifier, mains capaccitor or the SM driver. Replace and proceed.Check for short inthe secondary side for fusible resisistors opening, for diode shorting or zener shorting. Also check for the optocoupler which feedsback the switch. Use a good multimeter to check. If you are not familiar ask a friend with electonics knowledge to help. However if you visibly notice a fault of a burnout replace and proceed. hope this helps. Good day

Jul 02, 2010 | Canon PIXMA MP510 All-In-One InkJet...

1 Answer

VisionQuest Van gogh Plasma 32''. The standby light shut down. No power on has possible. I check the 3 fuses inside the TV and all is good. Someone know what is the problem !!!! Tks

Good day sir, your tv or any new tv are now using SMPS or technically called switch mode power supply, a regulator mode that is more efficient than traditional power supply, the down side is that its prone to defects, there are three main parts the Switching element which is the transistor, the oscillator circuit which is usually an IC that controls the frequency of oscillation and the high freqency power transformer that works with the switching transistor. All of these parts are need to be checked to ensure proper operations. SMPS also detects overload, which is caused by faulty parts on your tv, unless that faulty part is not found, it will not start and go on standby mode, worst will always shuts down. Call your dealer on how to go about your tv problem or have it check by a qualified technician.

Nov 03, 2009 | Televison & Video

5 Answers

Y computer will not start. I checked the power

Try booting from a rescue CD to see if the harddik is the culprit.
If you don't have one, try making one using instructions found at

Be sure to set Boot sequence to CD-rom in Bios.

Jul 30, 2009 | HP Pavilion a785c (82916061390) PC Desktop

1 Answer

Packard Bell F9150 desktop power supply

open your cpu cover .
Then check your power led on motherbord blink or not also reattcha ll connection to motherbord.
check your smps fan is movinh when you switch on.
May be you have to change smps it is square box from with you attch power code.

Jul 17, 2009 | Computers & Internet

5 Answers

450W ATX SMPS of Intex

sir all smps can be reapired using indian jugar technique. first of all see twi diods under the burnt transistors check them they are short then check the capacitors if they are not leaky or pregnant then see bridge reactifier change all that looks short or open then replace all and the transistors with 13007 transistors(jugad) be careful that 13007 must be isolated from heat sink that means metal part must be fixed to them but not short to them . replace the fuse with 2 ampere fuse (for safety) ..... have fun

Jan 21, 2009 | ASUS PSU | A-45GA 450W RT (A45GA) Power...

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