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Think has a short in it!!

Looking for lite power supply Model number is U120470AB6 input 120VAC60Hz0.85A ond output 12Vac4700mA

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  • 105 Answers

You can also use an ATX PSU by put a wire between green and black to switch the power on and put your died psu's wire into black and yellow plug (+ on yellow - on black)

Posted on Dec 21, 2012

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6ya6ya
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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

  • 624 Answers

SOURCE: no power on my VT-300ATX powersupply

If you're trying to just plug in the wall power cablem without connecting the motherboard it will not work. Switching power supplies need to detect a load (device) otherwise they will not put out power. Safety feature.....

Posted on Apr 05, 2007

pravinbhavsa
  • 348 Answers

SOURCE: PC smps power supply problem

ok you open the pcb check the fuse first then replace it if faulty if it burns again then check 4 diodes then see if 200v big capacitor is expanded or not if so then replace it if not then check diodes after transformer if short then replace it

Posted on Nov 21, 2008

  • 122 Answers

SOURCE: Power supply gets input but

if your getting 120 from your wall supply and you plug in your refurbished supply a big chance is your supply is shot.good luck

Posted on Aug 09, 2011

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Need a replacement power supply for a Evernote scanner


Sorry Gregory, gave you the wrong number.
You could try something like this. Various voltages and currents with different adapter plugs. This is on Ebay UK but I would think there are others, don't know where you are.
Ebay item number: 201154296095

Specs:
1.Rated Input Voltage: AC 110V or AC240V
2.Vibration Input Voltage Range: AC95V-265V
3.Input Rated Current: 0.4-0.6AMP
4.Input Power: 90W
5.Efficiency: >88%(TYP)
6.Out Power: 90W
7.Output voltage: 15V/16V/18V/19V/20V/22V/24V(0/+0.5V NOLOAD): DC15V-24V
8.Output voltage: 15V/16V/18V/19V/20V/22V/24V(-0.4/0.5V@rating load): DC15V-24V
9.Output current: 15-20V/4.5A@22V-24V/4.0A: 4.5AMP(max)
10.Overload protection: YES
11.Short Circuit Protection: YES

Dec 17, 2014 | Office Equipment & Supplies

2 Answers

NO POWER AT ALL


Hi
our tv set need to be serviced. Here are some tips:
1. Open main fuse. The fuse is clean but interrupted. You can try replacing it with one o the same value.
2. Fuse Blown or blackened. Short in the rectifier bridge or in the switching transistor. Out of the power supply: supply line rectifier (100/150V) shorted.

Sully

Sep 29, 2013 | Televison & Video

1 Answer

Mixed up my power supply for my dvd1170e external drive what is the correct input andoutput for this device?


You need one with the following attributes:
Output Voltage: 12 Volts DC
Amperage: 1.8~2 Amps


You can buy a replacement at http://www.lcdpayless.com/productpage.php?productId=8562

Nov 30, 2011 | HP dvd1170e DVD-RAM Burner

1 Answer

Input fuse blows on switch on


In most power supplies, if the input fuse blows that fast it's because of some shorted component right at the AC input. Check for shorted rectifier diodes and filter capacitors. Both are common failures, especially if the equipment has been subjected to power line surges. If the power supply checks out OK, shorted output devices in the amplifier section is the next most likely cause. Check for low resistance on the outputs of the power supply. It's helpful to have a schematic diagram of the receiver for troubleshooting, and you can often service manuals or other information free or at reasonable prices on the Internet.

Jun 25, 2011 | Cambridge Audio Audio Players & Recorders

1 Answer

I was watching tv and the tv turn off itself than no ligues no power and i try to turn on again and nothing happen what i should do?


Good day!

The problem of your TV is the power supply board.

Please follow this procedure to fix that problem:

  1. Remove the back cover of your TV.
  2. After that,look for the power supply board.
  3. Next,check the input voltage of the power supply using multimeter tester (range in AC).If the power supply don't have input voltage,replace the power cord.
  4. If the power supply board have input voltage,next is check the output voltage of power supply it should have 5vdc for the system board,12vdc for the sounds and 24vdc for the back light inverter.
  5. If you don't have output voltage of the power supply.Please check the fuse if busted and the power transistor if it is shorted,replace it with the same type,ratings and value.Also look for any leak/bulged on the top capacitor.
  6. After you done this steps and you found and replace the defective parts.Plug-in your TV and power it ON to test if it is OK.
The power supply looks like this:
bugoy31_3.jpg

If this solution will be help you to fix your problem,please don't forget to vote and rate my answer.Thank you for using FixYa and good luck.

May 08, 2011 | Vizio L37 Television

1 Answer

Need power cord


According to the Maxtor/Seagate knowledgebase information: your adapter calls for these specifications.

Model: SYS1308-2412-W2
PART NO: SYS1308-2412
INPUT: 100-240V ~ 1.0A MAX
50-60VA, 50-60Hz
OUTPUT: +12V - 2.0A
OUTPUT POWER: 24W MAX.

I Googled the part number and found that several power supply dealers sell this unit.
The Jameco Company sells a power supply with this model number.
I hope this helps you.
Circe D, pctechsonline

Jan 03, 2010 | Maxtor OneTouch 4 500GB External USB 2.0...

2 Answers

I NEED SCHEMATIC DIAGRAM FOR PRECISION COLOUR TV MODEL PTF29R99S


cannot get no parts for this tv ptf29r99s precision

Mar 03, 2009 | Televison & Video

1 Answer

Sony xplod 1200 watt amp quit no kind of protect lite on please


short answer yes... Long answer... Amp Failure: There are many different ways that an amp can fail but the two most common failures are shorted output transistors and blown power supply transistors (< those are not blown). There are several types of protection circuits in amplifiers. The most common are over-current and thermal. The over-current protection is supposed to protect the output transistors. Sometimes it doesn't work well enough to prevent the failure of the output transistors but it will work well enough to shut the supply down before the power supply FETs are destroyed. If the amp remains in protect mode, goes into protect mode or blows the fuse as soon as the remote voltage is applied, shorted output transistors are almost certainly the cause. If the fuse protecting the amp is too large, if the protection circuit doesn't respond quickly enough or if the power supply is poorly designed, the power supply transistors may fail. If you see a lot of black soot on the power supply transistors (near the power transformer), the power supply transistors have failed. Soot on the board doesn't necessarily mean the transistors have failed. Sometimes, technicians don't clean up the mess from a previous failure. Transistor Failure/Checking Transistors: In general, when a transistor fails, it will either short (common for output AND power supply transistors) or open (common for power supply transistors). Transistors act like valves. They control the current flowing through a circuit. A shorted transistor acts like a valve that's stuck open (passing too much current). In the case of an output transistor, the shorted transistors tries to deliver the full rail voltage to the speaker output terminal. If you've ever seen a damaged amp that pushed or pulled the speaker cone to its limits when the amp powered up (common on some Rockford amplifiers), that was almost certainly due to a shorted output transistor. When checking transistors, you most commonly look for shorted connections inside the transistor. You do this by using a multimeter to look for low resistance connections between the transistor's terminals. Note: I used the terms short and open on the previous paragraph. A short (short circuit) is a path through which current flows that should not be there. An open (open circuit) is a break in the circuit. It is most likely the power supply that has taken a ****.

Jan 01, 2009 | Sony Xplod XM-1652Z Car Audio Amplifier

1 Answer

401s Rockford Fosgate Amp. Not turning on. No power light. Pos+ and GR- are solid. Thought it may be remote, so tried running a wire from the POS+ to REM to test it, no luck


Amp Failure:
There are many different ways that an amp can fail but the two most common failures are shorted output transistors and blown power supply transistors (< those are not blown). There are several types of protection circuits in amplifiers. The most common are over-current and thermal. The over-current protection is supposed to protect the output transistors. Sometimes it doesn't work well enough to prevent the failure of the output transistors but it will work well enough to shut the supply down before the power supply FETs are destroyed. If the amp remains in protect mode, goes into protect mode or blows the fuse as soon as the remote voltage is applied, shorted output transistors are almost certainly the cause. If the fuse protecting the amp is too large, if the protection circuit doesn't respond quickly enough or if the power supply is poorly designed, the power supply transistors may fail. If you see a lot of black soot on the power supply transistors (near the power transformer), the power supply transistors have failed. Soot on the board doesn't necessarily mean the transistors have failed. Sometimes, technicians don't clean up the mess from a previous failure. Transistor Failure/Checking Transistors:
In general, when a transistor fails, it will either short (common for output AND power supply transistors) or open (common for power supply transistors). Transistors act like valves. They control the current flowing through a circuit. A shorted transistor acts like a valve that's stuck open (passing too much current). In the case of an output transistor, the shorted transistors tries to deliver the full rail voltage to the speaker output terminal. If you've ever seen a damaged amp that pushed or pulled the speaker cone to its limits when the amp powered up (common on some Rockford amplifiers), that was almost certainly due to a shorted output transistor. When checking transistors, you most commonly look for shorted connections inside the transistor. You do this by using a multimeter to look for low resistance connections between the transistor's terminals. Note:
I used the terms short and open on the previous paragraph. A short (short circuit) is a path through which current flows that should not be there. An open (open circuit) is a break in the circuit.

These repairs are best left to a repair tech familiar with car audio amplifiers. Check with your local shop to get a reccomendation. If the light isnt even coming on, chances are your input or power supply has been taken out.

Jan 01, 2009 | Rockford Fosgate Punch 401S Car Audio...

1 Answer

Keep blow fuse on power supply board, viewsonic vx910


Replacing the fuse twice is OK but going beyond that doesn't make sense.
I don't know where the fuse is located in the circuit, AC input or some output point.
If it is the main AC fuse, the main power supply is probably faulty and one needs some experience to locate the shorted component.
If it is on the output side you have a shorted part and the above admonition applies; you need some training to know what you are looking for.
If the supply is on a separate board as is common, look for a part (assembly) number and do a search to see if there are companies offering repairs on that supply; if not, you may get stuck buying a new one and there is no guarantee that the supply didn't fail for a reason. You could have a 'downstream' problem that killed the supply.   

Oct 10, 2008 | ViewSonic VX910 19" LCD Monitor

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