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POWER SUPPLY VOLTS - Air Tools & Compressors

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Air nailers have no power supply

Posted on Apr 15, 2015

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Posted on Jan 02, 2017

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1 Answer

What is the Power supply for the Sony SRS-A21 speakers


count how many batteries it takes,multiply iot by 1.5 and then take that number and that is the voltage of the power supply that you need,1 battery is 1.5 volts 2 batteries is 3 volts 3 batteries is 4.5 volts 4 batteries is 6 volts

Jul 18, 2015 | Sony Audio Players & Recorders

1 Answer

110 volts, rated TV was plugged into 220 volts power supply. Now when it was plugged into an 110 volts supply its not getting on? What could be the causes? and please suggest solutions.


It probably fried the power supply in the TV unfortunately. If the electrical surge stopped there then it should just be a matter of swapping out the power supply. Provide a make and model of television and I will see if I can help find one with instructions on how to change it.

Nov 24, 2012 | Office Equipment & Supplies

1 Answer

I accidentally plugged computer avr 220v to 110 could it affect my power supply


If the computer power supply is a 240 volt unit and you plugged into 110 volt mains the the computer should be OK.
Some power supplies have a voltage selection switch on the back of the power supply switch to 110 volts and it should work.
If the power supply is 110 volts and you plug it into a 240 volts mains then you will damage the power supply and possibly the computer as well.

Mar 14, 2012 | HP Pavilion a465w-b PC Desktop

1 Answer

How to get a symmetric DC power supply : i.e +18 Volts -18 Volts and ground from this kenwood power supply PDS36-20


You can't do that because it's not a split supply. There's just a single output referenced to ground, so all you can get is one voltage at whatever you select from 0 to 36 volts.

Aug 01, 2011 | Kenwood (PDS36-20) Power Supply

2 Answers

You press the button and it donest turn on all the time


DO NOT OPEN A POWER SUPPLY!!!!

NEVER!

Inside an SMPS, (Switched Mode Power Supply), are Electrolytic Capacitors.

http://en.wikipedia.org/wiki/Switched-mode_power_supply

http://en.wikipedia.org/wiki/File:ATX_power_supply_interior-1000px_transparent.png

http://en.wikipedia.org/wiki/File:Capacitors_electrolytic.jpg

(Radial. The bottom capacitor in the photo)

Electrolytic Capacitors slowly build up a charge, then release it all at once.
You can compare it to a large swimming pool being filled up with a garden hose, and then one wall of the pool being taken down all at once.

At the bottom, of the Radial (Style) Aluminum Electrolytic Capacitor shown in the above photo link, are two leads.
One is Positive, the other is Negative.

Touch your finger/s to the terminals on the bottom of one of these babies, and the shock can be BAD to FATAL!

If your fingers touch, and complete a circuit that one, or more capacitors are in, the shock can be BAD to FATAL!

Don't open that power supply!

Besides, a fuse goes out All At Once.
There is no work a little bit, then turn off.
It just goes Poof!
(The fusible element inside burns into two separate pieces)

Now,

"You press the power button, and it doesn't turn on all the time"

As has been suggested, I also concur that you have a bad power supply.

But you could also have a bad Power On switch, located inside that plastic Power On button.

This is an example of a Power On switch, that I have found fits a lot of computers,

http://www.directron.com/atxswitch.html

I'd like you to get this switch, and install it.
From there the diagnosis will go to the Power Supply.

Also would like you to make sure the ram memory is seated tight, and the Processor fan is spinning, and looks to be spinning at the right speed.

If the fan spins a few times, and stops, then spins a few times, you know the fan has a bad bearing. Replace.

If it looks to be spinning too slowly also, you'll know it

Be sure to follow anti-static precautions before you reach inside your computer, and the computer is unplugged from power.
If you do not know what anti-static precautions are, I'll be glad to tell you. Simply state so in a Comment.
(Believe upper right of your page)

As for the Power Supply test, you need either a multimeter, or a power supply tester.

An inexpensive multimeter, that will work just fine for this application, ranges from $6 to $12. The Voltages are only 3.3 Volts, 5 Volts, and 12 Volts. (DC)
Two C cell flashlight batteries are 3 Volts. (DC)

Your computer power supply puts out three main Voltages, as stated above.
A) 3.3 Volts (3 point 3)
B) 5 Volts
C) 12 Volts

Orange insulated wires are 3.3 Volts
Red wires are 5 Volts
Yellow wires are 12 Volts

ANY Black insulated wire is a Ground wire.

This is DC Voltage.
There is a Positive, and a Negative.

The Positive (Red) probe lead of the multimeter touches a power wire. (3.3, 5, or 12)

The Negative (Black) probe lead touches ANY Ground wire. (Black)

IF, the 12 Volt power rail shows 11 to 13 Volts, the diagnosis indicates the Power Supply to be good.
(However read on)

IF the 12 Volt power rail shows 11 Volts, or less, the Power Supply is bad.

This is an example of a power supply tester,

http://www.directron.com/pst03.html

Jun 03, 2010 | Shuttle XPC PC Desktop

2 Answers

Pcv- rx860 desktop will not boot when power button is pressed, blue light blinking - could it be the power supply? tried re seating hard drive, memory and video cd


I also concur that the power supply is at fault.
Weak voltage power rail.

1) You can check the voltages of the power supply with a power supply tester, (One example: http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=5250576&CatId=1107

2) You can also check the voltages with a multimeter.

There are three main voltages produced by a SMPS.
(Switched Mode Power Supply. However the 3.3 Volt power rail is being phased out)

A) Wires with Orange insulation are 3.3 Volts
B) Red insulation 5 Volts
C) Yellow insulation 12 Volts

D) Black insulation denotes a Ground wire. ANY Black wire is a Ground wire. Granted not a power wire, but needed to be stated here with the power wires.

All power cables unplugged inside the computer, power supply still attached to computer case. Power supply is turned on, and the voltages are checked.

Multimeter is set to DC, and the 0-50 Volt scale if applicable.
The Positive (Red) probe lead of the multimeter is connected to a power wire.
The Negative probe lead is connected to ANY Ground wire.

The Voltage power wire of most concern here is the 12 Volt wire.
11 to 13 Volts is okay. Less than 11 volts it's time for a new power supply.

Apr 03, 2010 | Sony VAIO Digital Studio PCV-RX860 PC...

1 Answer

Power supply suddenly 'dead'


You check the power supply using multimeter. but before everything make sure the you are getting power from the power outlet.

Here is how you can check the power supply with multimeter

If the wall outlet and the power cord are good, make sure the connection at the motherboard is secure. Then you may have to face the fact that the power supply itself is bad. If you have a multimeter, you can test the power supply output before purchasing a new one. Simply follow these steps:
  1. Turn off the PC, but do not unplug it. Open the system unit. Set the multimeter to read DC volts in the next range higher than 12 volts. Locate a power connector similar to the hard drive (or CD-ROM drive connector that is unused) and turn on the PC.
  2. You can also unplug a drive connector and use it. Turn on the PC and insert the BLACK probe into the power connector on one of the BLACK wires. Touch the RED probe to the YELLOW wire on the power connector.
  3. The multimeter reading should be +12 volts. Now touch the RED probe to the RED wire and the reading should be +5 volts. If no readings or different readings occurred, you’ll have to replace the power supply. If the readings were correct, you should check the P8 or P9 connectors at the motherboard. These connectors may also be named P4 and P5. To check these connectors, perform the following:
    • Insert the BLACK probe into P8 at one of the BLACK wires. Insert the RED probe into the P8 connector at the RED wire. The reading on the multimeter should be +5 volts.
    • Check the power going to the motherboard connections by inserting the RED probe into P8 at the YELLOW wire and you should get +12 volts. Leave the BLACK wire touching the BLACK wire at the P8 connector. Check the BLUE wire and the reading should be a -12 volts.
    • Now move the BLACK probe to the BLACK wire on the P9 connector. Test the WHITE wire by inserting the RED probe and the reading should be -5 volts. Check the RED wires on the P9 connector and you should get +5 volts on each red wire. You won’t get exactly 5 or 12 volts, but the readings will be very close, such as 5.02 volts.
    • If the Power Supply is a couple of volts off in either direction, such as when the RED wire should be reading -5 volts but it reads -8 volts, or if there are no readings, replace the power supply.

Mar 22, 2009 | Computers & Internet

1 Answer

LCD tv issue


at error code is 12 and it is your 12-volt supply. Measure from the inverter to the power supply for 24 volts pins 1,2 and 3. If you don't have the 24 volts disconnect the inverters from the power supply and see if the volts come up. If the 24 volts come up replace the inverters. If the 24 volts are still not there replace the power supply. The volts have to be steady and not going up and down if they are replace the power supply.
But if the 24 volts are there with the inverters connected 1M03 pin 3 for 3.2 volts. If the 3.2 volts are not there replace the small signal board. The only way to get a manual is to find it on line or call the manufacture.

Aug 26, 2008 | Philips 37PF7320A 37 in. HD-Ready LCD...

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