Question about Maxtor OneTouch II 300 GB Hard Drive

1 Answer

Burn circuits I plugged the wrong power adapter to this device, and now it doesn't work with the correct adapter. There was an electrical order present shortly after this slip-up.

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 657 Answers
Re: Burn circuits

The disk is probalby ok , it's probably just the power circuits for the USB/Firewire adapter that got fried,   if need be you could liberate the disk and use directly, or you could use a different Disk adapter to connect it via USB/Firewire again.

Posted on Oct 11, 2007

Add Your Answer

0 characters

Uploading: 0%


Complete. Click "Add" to insert your video. Add


3 Points

Related Questions:

1 Answer

Where can i buy electric 12v adapter

Understanding that you lost your power adapter for the external device you can easily do the following:

1) Check the documentation of the device to confirm it is really 12V DC.
2) Check the amperage specified in the documentation (for example, 1.0 mA) ;
3) Check the polarity (normally indicated in the device, such as positive in the center pin, or otherwise).
4) Check the size of the connector.
5) with all the information at hand go to your local electronic supplier shop (such as RadioShack, or another) and request for a power adapter with those characteristics. Take the device with you to make sure the connector will fit correctly and that the polarity and other information do match

Note: make sure the new adapter has the same capacity (or a little bit higher) than the milliamps (mA) indicated in the documentation or the label at the device.

That's it! You will be rocking!

Good luck!

Aug 14, 2014 | Iomega Hard Drives

1 Answer

WD500H1U-00 Western Digital 500GB MY BOOK external hard drive does not turn on power. There are two cables, one goes from external hard drive to computer and then another one is a power cable. It does not...

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.

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.

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

For additional questions please post in a Comment.


Oct 03, 2011 | Hard Drives

1 Answer

I have the Western Digital My Book Essential Edition 250GB External Hard Drive. I have moved and lost the power cord. I purchased the DYNEX 500ma Universal AC Adapter as a replacement. When I plug the...

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

Sep 15, 2011 | Western Digital 250GB MyBook External USB...

1 Answer

Hi i have Maxtor OneTouch 4 500GB. When i chang hard disk and power on the light is not blinking and pc do not recognize eny usb device


It sounds like you have one of four issues. Determining which is fairly easy. Eitheryou have the wrong power supply, your power supply is dead, the enclosure has a short or the hard drive inside has a short.

First, verify you have the correct power supply, just because it fits doesn't mean it's the correct one. Check the writing on the power supply for V or Volta and A or Amps. Typical drive power supplies range between 10-24V and .5-3.42A. The adapter will also have a polarity drawing showing positive + and negative - and showing which one is the inside and outside of the tip. Now check the wiring on the one touch device. If it's the same you have the correct adapter, move on to the next step. If not you have the wrong adapter, find the right one and re-test the device, if it works you're done, if not move onto the next steps.

Second, if you have a mulit meter try the following steps yourself, if not, take the drive and power supply into your local PC shop. Place the dial on the multi meter on DCV. Check the drawing on the power adapter, if the + is the center of the adapter, place the red tip in the hole in the middle of the tip, touch the black tip to the outside of the tip and check the voltage. If the voltage matches the writing +/-.5V the adapter is functioning, move onto replacing the enclosure, if not see if the shop has a replacement adapter and test with it, if they don't move onto replacing the enclosure. If they do have a working spare test the One Touch with their adapter and see if it works, if it does, buy the adapter, if it doesn't move onto replacing the enclosure.

Third, replacing the enclosure, assuming all the tests so far have failed to resolve the issue ask the technicians at your PC shop to transfer the One Touch's hard drive into a new enclosure and test it. If it works in the new enclosure buy it and you're done, if not you've now determined the failure is in the hard drive itself.

Fourth, If you've determined the hard drive is at fault, reply to me with you hard drive(not the One Touch), Make and Model # and your location (Country, State, City) and I can refer you to a nearby data recovery facility that can aid you in retrieving your files from the damaged drive.

Hope this helps FixYa,


Dec 26, 2010 | Maxtor OneTouch 4 500GB External USB 2.0...

1 Answer

Hard drive is not powering up any longer

I think so, As far as i understand, your pc is not powering on unless you dont plug in you hard drive right?Check wether it is ATA, or Serial ATA (SATA)?
THE problem is circuit, and i think you hard drive is JUNK!
(ATA)..1- Take a gd look at the drive, where you plug in the power cable, and make sure the 4 tubes are far enought.
2- Replace the IDE cable.
(SATA).. 0- Replace the cable.

gd luck

Dec 31, 2009 | Hard Drives

1 Answer

My wd 500 gig external hard drive keeps blinking and my computer doesnt recognize it. whats going on?

How do you have it connected to your PC? USB or Firewire? try plugging it in to different slots or try plugging it in on another computer to further isolate the problem. some external drives requires power adapter to work so make sure that you're using the power adapter if it comes with the device. if not, there might be something wrong with the device specially if it was working before

Jul 17, 2009 | Western Digital My Book Essential Edition...

2 Answers

Mistakenly plugged maxtor one touch 2 into wrong power adapter

Well Most Likely The Circuit Board Burnet Out Since Its 12V And When Plugged Into A 19V Supply It Will Burn Out Instantly Because It Over Charges The Circuits. So Its Not Possible To Repair Such Damage But You Can Take Out The Hard Drive And Plug IT Into A Desktop Computer And Use It At Home Or As An Online Hard Drive To Store Files

Jun 18, 2009 | Maxtor 160GB OneTouch III Mini USB 2.0...

1 Answer

E Book 500GB drive does not get power

It sounds like the adapter more than the e-book.
If the adapter plugs into the e-book, remove it and buy another one with the same voltage and correct power orientation. The best way to do this is to take the old adapter with you to any shop that sells electrical equipment - even K-mart has them.
If it's one of the fixed adapters, it's best just to take it to a sparky and have them change the adapter for you, it's a 2 minute job.

Feb 09, 2009 | Western Digital My Book Essential Edition...

1 Answer

Does not work

I believe what happened is that when the wrong adapter was connected it damaged some of the electronics inside. Specifically I would guess some filtering capacitors. You would need to open it to fix it. If you need the data I would think that the drive inside would still work so you could take it out and get the data off of it. Otherwise I would see about sending it back for warranty replacement.

Nov 02, 2007 | Maxtor One Touch III 500GB FireWire/USB2.0...

Not finding what you are looking for?
Maxtor OneTouch II 300 GB Hard Drive Logo

Related Topics:

107 people viewed this question

Ask a Question

Usually answered in minutes!

Top Maxtor Hard Drives Experts

Brian Sullivan
Brian Sullivan

Level 3 Expert

27725 Answers

Mark Taylor
Mark Taylor

Level 3 Expert

728 Answers


Level 3 Expert

5660 Answers

Are you a Maxtor Hard Drive Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides