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What is the polarity output from ac adaptor of wd4000c032 ?

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Posted on Nov 13, 2010

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I HAVE AN AC ADAPTOR,… CLASS 2 TRANFORMER FOR OUTDOOR USE THAT NEEDS TO BE REPLACED.. MODEL: KMUA - 240 - 05000- 66UL INPUT: 120V - 60Hz 570mA OUTUT: 24V - 50VA


Amazon has it.

AC Power Adapter 120V input 24V 50W (50VA) output, UL listed
www.amazon.com › ... › AC Adapters
Mobile-friendly - AC 24V Power Adapter; 50W Output (50VA); 120V AC Input; UL Listed; Ivory Color item in OEM box ... 24V20AC 24V AC 20VA Transformer Input: AC 110V / 120V 60Hz Output: AC 24V 880mA

Dec 09, 2015 | Computers & Internet

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I need to know the POLARITY of the AC adaptor to provide the correct setting using a universal adapter.


there is no polarity in ac current as ac means alternating current and that means alternating between positive to negative back to positive back to negative and so on
only dc ( direct current ) and the center pin of the plug is designated as the positive pole has polarity, the outer case being the negative
OR Are you asking the voltage of the ac adapter and the voltage of the dc output side of the adapter

Nov 26, 2015 | Office Equipment & Supplies

1 Answer

Amp turns on but puts out no sound except for faint noise which dies out after a few seconds.


It sounds like a defective/incorrect AC-to-DC adapter may have caused your problem. These adapter come with different output voltages, AC or DC output and different amperage ratings. AC-to-DC adapters list the polarity of the DC voltage as it relates to the DC power plug and you must match both the devices voltage and power requirements. As for the amp...not working on batteries either, I would suspect output transistors or IC.

May 23, 2014 | Marshall Amplification Marshall MG2FX...

2 Answers

Can I use an 18 volt universal AC Power Adaptor on Fujitsu Lifebook P7120 which is a 16 volt laptop?


With voltage step down power supplies, output power is more important than data plate output V (volts). V times output A (data-plate amps) equals output Watts (or VA) under normal load. If the voltages are close and the output watts (VA) are very close (one or two watts) you are in luck as long as the connector is same size; AND THE POLARITY (+ & -) IS THE SAME for the old and replacement unit!

Jan 17, 2012 | Fujitsu LifeBook P7120 Laptop AC Power...

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Dear Sir/ Madam, I have TWO Western Digital USB


first of all , you are looking at the wrong voltages. The important voltage is the DC OUTPUT, which is the voltage the external harddrives use AND the polarity of the plug attached to the harddrive end of the cable.
if both the harddrives have say 12v dc output and both have the insignia of the center conductor being + (posative) then you can interchange them. and you CAN run a 9volt unit with 12volt DC power, but not the other way around.
Look at your power adaptors again for the OUTPUT and polarity.
should be a half-circle with lines depicting the polarity(+,-) of the center and sheild connections to the hard drives printed on both the harddrives and the power adaptors . This can also be tested with a dc volt meter while the adaptors are plugged into the wall.
DO NOT try to test the AC end while plugged in!!
Regards

Aug 09, 2010 | Western Digital 250GB MyBook External USB...

2 Answers

I lost my GE Ultrasonic 2.1 Speaker power adapter and i need need ones but i dont know what to buy, the voltage it requires..6 or 9 volts?


at most electrical stores you can buy a universal power adaptors with a selection of socents to fit most connections. and which has a selector on it for various voltages settings.
take one of the little connectors and see which one fits. then checking the polarity on your device set the polarity the same when plugging the connector into the power supply cable. adjust voltage as needed.

Warning: when connecting a variable power adaptor alway connect on the lowest voltage setting and work up as too high voltage can distroy your appliance.

Nov 13, 2009 | GE Ultrasonic 2.1 Speaker

2 Answers

Ac adaptor on my 32 Protron inch LCD TV no longer work


What is the current output of the adaptor? If it is AC and you use only the 12v to 3v it is ok. But if the current output of the adaptor is DC and you use both 24v to 6v and 12v to 3v there is some danger if use the new one. Remember that DC current have polarity.

Aug 29, 2009 | Protron PLTV-32 Television

2 Answers

Need polarity of adapter plug for HP Pavilion DV6500


The cables for these are fairly specific, but if you have a cbale that has the same plugs and fits both the transformer side and the computer side, you cna use that as a replacement. The cord itself has no polarity.
Are you looking to do something else here?

Jan 01, 2009 | HP Pavilion DV6500T Notebook

2 Answers

Hercules ProphetView 720 Power Adaptor Polarity


Yes the adapter must have an output of 12vdc AND rated for a least 4.0A output!

Dec 29, 2008 | Scanport 821S 17" LCD Display Monitor

2 Answers

I can't determine the polarity of my GPX PDL705 portable dvd


Hi,

I have uploaded the GPX PDL705 manual to this site today. If you check tomorrow they may have posted it by then.

If you look at the small print on the adaptor it should indicate by diagram Voltage output, current capacity, type and tip polarity by small diagram. Most adaptors are 'positive' -- but if you are unsure do not plug the adaptor into the device because it will fry it!

Dec 05, 2008 | GPX PDL705

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