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What is external power source - Stratitec USBM24S 4PORT USB 20 Mini Hub

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Won't switch on


battery may be flat. connect the external power source. Make sure the external power source is supplying current and does not have a broken wire. this is a common problem

Mar 05, 2015 | Tomtom One XL GPS Receiver

1 Answer

Lcd blank


Here is few question you might want to ask yourself:
Have you try the monitor on another source?
So if it work, what is the resolution the source was set at?
Can you try another video on the source that does not work and compare the resolution?


If the monitor does not work with another source then internal part is failling. inverter for neon lamp most of the time but the power light would lite up. if the power light does not light upe then it is internal power supply. Check the power cable, external power supply, the internal and external power plug (you might want to replace the cable for a test or the power supply if external)

hope this help you.

Jan 04, 2014 | BenQ Computers & Internet

1 Answer

Cobra handheld cb radio stops working when inserting external power source


If it works with batteries but no via the external input for power either the socket for that is bad or the source voltage is not there when connected that way

Dec 04, 2012 | Cobra HH-38WXST CB RADIO 40CH 10 WEATHER...

1 Answer

Hi there, I have a Toshiba external HDD 250GB that is giving me some problems and need some urgent help! When I plug my external HDD into my laptop everything seems to work fine. The lights come on, the...


It sounds as though your issue is one of in adequate power. Do both the external HDD have their own power source, or are they powered through USB? if they are powered through USB it may be that as soon as the second drive spins up to transfer the files, it overwhelms the limited power of the laptop. You can try it with the laptop plugged in (though this may not provide it with more power than the battery) or by purchasing a usb hub with its own external power source so that it is not drawing power from the laptop, or purchase an external hard drive with its own power source
The other option is simpler and free, and its to copy the files first to your laptops own HDD, then unplug the source external hard drive, and then plug in the drive you want to copy to, then transfer the files from your laptops hard drive. This will of course take twice as long, but will cost you nothing.

May 29, 2011 | Toshiba 250GB TOSHIBA USB 2.0 PORTABLE...

1 Answer

HP dv5400 laptop and external power source won't power up


Either your AC CORD or POWER JACK is BAD... Check if that's the case, if not, the worse senario is that the charging port can be shocked, which you will have to replace the motherboard...

Sep 26, 2009 | HP Computers & Internet

1 Answer

Mt6840 laptop gateway


Try the following
  • Remove the battery and power on the PC with the external power source alone
  • Remove power source and power on the PC with the battery
This will ensure there is no fault with the battery. Sometimes, if your processor is overheated, you'll have wait for 10-30 minutes before you can start again.

Jul 24, 2009 | Gateway Computers & Internet

1 Answer

Freeagent desktop external hard drive will not power up


I have my own Seagate hard drive and with mine you have to plug it into the computer and power source for it to power on.

Jan 10, 2009 | Seagate FreeAgent Pro - 500GB, 7200 RPM,...

1 Answer

Windows is saying it cannot access my secondary drive due to it being corrupted. I have unplugged the drive and plugged it back in... I can't access it from command prompt either... I'd like to access the...


If this is an external drive has it ever worked? do you have an external power source for this drive? Check that the external power source is working. This could be a power supply or a second USB cable.

Dec 16, 2008 | Computers & Internet

1 Answer

Usb Drive


Two questions for ya:

A) When you say USB drive, do you mean an external CDROM, DVDROM, or mechanical HARD DRIVE or do you mean a FLASH DRIVE? (see below)

B) When you say "NOT WORKING" do you mean that when you plug it into ANY USB port, you get an error tone; you don't get any response; you see the drivers being loaded, but no drive appears; you see the drive appear, but no files are listed on the drive; or something else?

From these two questions, we will be much more able to help.
-jase

NOTE:
External devices that have mechanical moving parts, like CD and DVD drives often require external power sources in order for the drive to function. Even external hard drives can require a separate power source. This is because the small amount of electricity provided by the USB port is not enough to power the motors inside these external devices.

Another type of external storage medium is called a "Flash Drive". It is like a hard drive in so much as it stores data and appears in your explorer/Finder window like a hard drive. However, there are no moving parts, so it never requires an external power source.

Nov 29, 2007 | Electronics - Others

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