Ac adapter voltage

Complete Guide to Using the Correct Charger or Power ...

www.groovypost.com/.../choose-right-power-adapter-charger-phone-lap...

Jun 24, 2013 - If the device has a DC input of +12V / 5.4A, get an adapter that has a DC output of +12V / 5.4A. If you have a universal adapter, make sure it has the proper current rating ... Ideally, you'll have the same voltage, current and polarity on your ......or hdmi on my laptop .can you say what's the reason for the same.

How to select an AC to DC power adapter - ApogeeKits

www.apogeekits.com/power_adapter_selection.htm

An explanation of regulated versus un-regulated AC to DC voltage power adapters. ...voltage output power adapters and how to use this information to select the right one... Some (more expensive) DC voltage output power adapters have voltage ... Care should be take to ensure that the maximum input voltage of the load ...

AC/DC Power adapter ' Laptop Parts 101

www.laptopparts101.com > Laptop parts

Dec 26, 2008 - It's very important to use the right adapter for your laptop. ... Polarityon the new adapter's plug must be the same as on the original ... AC/DC power adapter voltage and amperage ..... I have purchased an non-hp dc-dc convertor (150W), 12Vinput, 19V output. .... So the cable component has to be replace.

Determining Proper A/C Polarity - Galen Carol Audio

www.gcaudio.com > Resources > How-To's

What you are after is an AC adapter this model I found on ebay has 120 volts to 240 volts to 12 volts make sure the DC voltage output matches the Voltage of your hard drive. The current output has to be the same amount or larger in value. So if your drive needs 2A a 2A or larger value means it can handle the current load put on it by the Hard drive.
http://www.ebay.com.au/itm/AC-DC-Adapter-For-SimpleTech-96300-40001-001-SimpleDrive-HD-Power-Supply-Cord-/400716519670?pt=US_Monitor_Power_Supplies&hash=item5d4c90d8f6
or
http://www.ebay.com.au/itm/12V-AC-Adapter-For-SimpleTech-Simpledrive-External-Hard-Drive-HD-Power-Supply-/281311386852?pt=Laptop_Adapters_Chargers&hash=item417f771ce4

this one below matches the exact model number of your hard drive
http://www.ebay.com.au/itm/AC-Adapter-For-SIMPLETECH-BOM-No-96300-41001-133-96300-41001-045-96300-41001-073-/400705526395?pt=US_MP3_Player_Chargers_Cradles&hash=item5d4be91a7b

Believe it or not, unplug the AC adapter (Power Adapter) from the surge protector, and plug it directly into the wall socket.
Try this first.

1) I believe the power adapter is rated at 12 Volts DC, and 2 Amps, for the output voltage, and amperage.
(12 Volts times 2 Amps = 24 Watts.
12V X 2A = 24W)

Use a multimeter, and test the voltage coming out.
You can buy an economical multimeter for around $8 to $12. A lot of stores carry them. An auto parts store is but one place.

The plug end that plugs into the laptop, is cylindrical in shape, and has a hole in the center.

This is DC voltage you are testing.
The metal center of the plug is Positive. The outside shield surrounding the plug is Negative.

The Function Knob should be turned to DC Voltage.
(If it is a symbol, it will be a dotted line above a solid line.
NOT a curved line on a dotted line. This is for AC voltage)

If there is more than one scale, set the Function Knob to DC voltage 0-50 Volts.

The Red probe lead of the multimeter is the Positive lead.
The Black probe lead of the multimeter is the Negative lead.

AC adapter plugged into power, the Positive probe lead is inserted into the center of the plug.
Be SURE it doesn't touch the outside metal shell at any time.

The Negative probe lead is touched to the outside metal shell.

See if the voltage reads 12 Volts.

AC adapter (Power Adapter) checks out OK?
Suggest there is a problem with the small circuit board inside the MyBook.

Inside the MyBook WD500H1U-00 is an ordinary harddrive.
It is a desktop sized harddrive. 3.5 inches across in width.
(3 and a half inches, or 8.9cm)

It is a SATA harddrive.

http://www.youtube.com/watch?v=6FlySnyJ0CQ

Inside that plastic MyBook case is also a small circuit board. An interface circuit board.

The harddrive plugs into the interface circuit board directly, or there is a cable, or cables, that plug into the harddrive from the interface circuit board.

It is this interface circuit board that goes bad most of the time.

You can remove the harddrive out of the MyBook case, and put it inside a desktop computer that uses SATA harddrives, as a Slave drive.
Retrieve your information, and burn to disk/s, or flash drive/s.

{DO NOT move any jumpers on the back of a SATA harddrive. These are for the factory ONLY}

Or you can buy an adapter that the harddrive plugs into, and it has a USB cable.

http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=2583340&CatId=3770

Or you can put it into a 3.5 SATA external enclosure, and use it as an external harddrive again.

http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=2145406&CatId=2780


For additional questions please post in a Comment.

Regards,
joecoolvette

I don't have a photo of the AC adapter, but if you look on it the Voltage and Amperage specifications are;

Input: 100-240VAC / 50~60Hz
Output: 12VDC / 2A

This means the Input power can be from 100 volts to 240 Volts AC, and at 50 to 60 Hertz

The Output power is 12 Volts DC at no more than 2 Amp's. (Amperes)

Asian Power Devices Inc. has a model DA-24B12 that fits these specs.
Also a Wattac AC adapter model number - BAO362Zl-8-A01 will work.

Otherwise just use a 12 Volt, 2 Amp power pack, with a positive on center contact, and a 2mm pin hole

An external storage-device has four major components:

* the USB cable

* the power-adapter

* the disk-drive inside the enclosure

* the USB-to-disk-drive adapter inside the enclosure.

One of these components has failed.

Try a different USB cable.

Try connecting to a different USB port on your computer.

Try connecting to a USB port on a different computer.

Take a "multi-meter" and measure both the voltage and amperage output from the AC adapter, and compare with the specifications on the label on the adapter.

Open the enclosure, and remove the disk-drive, and then connect it as a "slave" disk-drive in a desktop computer, to see if it works at all.

Purchase a new, compatible, disk-drive, and install it in the enclosure, to "revive" your external storage device.

Get the part-number and serial-number from the label on your disk-drive, and access the manufacturer's web-site, and use "check warranty status", to see if they will replace the device, at minimal cost to you.

Note that W.D. has a "Customer Loyalty" program -- you can buy a new W.D. device, through the W.D. web-site, at a significant discount.

There exist commercial "data recovery" services that can try to repair your device, just long-enough to rescue and copy your files. For example, see: https://services.seagate.com/index.aspx?lng=en-US for a "no data - no charge" guarantee.

I don't have a photo of the AC adapter, but if you look on it the Voltage and Amperage specifications are;

Input: 100-240VAC / 50~60Hz
Output: 12VDC / 2A

This means the Input power can be from 100 volts to 240 Volts AC, and at 50 to 60 Hertz

The Output power is 12 Volts DC at no more than 2 Amp's. (Amperes)

Asian Power Devices Inc. has a model DA-24B12 that fits these specs.
Also a Wattac AC adapter model number - BAO362Zl-8-A01 will work.

Otherwise just use a 12 Volt, 2 Amp power pack, with a positive on center contact, and a 2mm pin hole

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

try relocating where you connect the usb cable of your mybook, also check your usb drivers, maybe they are not good or obsolete. finally check the power adapter of the mybook maybe it is low output, or having low output so the read is slow,
you can also check if you have viruses in your mybook, could be also that the drive have bad sectors, chkdsk and fdisk would be a good option.

the transformer I have says:
DC output: 12Vdc == 2A
hopefully that helps...

I would try the correct voltage adapter and see if you can get it working.

You could remove the hard drive from the myBook drive and plug it into a PC to see if the hard drive is damaged or if it is the electronics/pcb that is inside the myBook drive.

You might be able to salvage just the hard drive (use it internally) and throw away (or keep for parts) the rest of the case/parts of the myBook unit.

Mike