Question about Tripp Lite (U222-004-R) 4-Port USB Hub

1 Answer

Usb hub heats up only when the external power is connected. It eventually fails. Removing the external power it works again. The external 5v measures corectly. Model # U222-004-R

Posted by on

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Genius:

    An expert who has answered 1,000 questions.

  • Master
  • 1,112 Answers

There is a problem with an Ic on the board internally to the Hub. The
DC to DC converter IC inside the hub is defective, just replace the hub.

Posted on May 23, 2011

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
New users get to try the service completely Free afterwhich it costs $6 per call and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Hi....my Samsung external HD G3 2tb won't turn on again after I erased all data on it. It is connected thru a hub to my iMac and taking off the power or USB and plugging back in won't do the t


It sounds like the drive has failed. The fact that you erased the drive just before it failed is coincidental.

Take the drive back and request a replacement under warranty. Also, demand that they destroy the drive in order to protect your data.

Feb 11, 2012 | Samsung Computers & Internet

2 Answers

Ge uh534 usb hub -- what voltage adaptor does it use? thanks


HI
Usb is normally 5v and i think about 500ma (ma= milliamp)

Mar 13, 2011 | GE Televison & Video

1 Answer

Some of my peripherals, trackball inc. want to be connected to the netbook instead of settling for my hub. What do I HAVE to connect to the computer among CD drive, hard drive, printer, keyboard,...


Most likely your USB hub is not capable of supplying enough power to support all your peripheral devices. USB devices are powered by 5 volts from the USB port. If you connect a hub to a USB port and connect a lot of devices to the hub, there is not enough 5 volt power to let all devices work. To fix this, most USB hubs have an external power option that when plugged in will supply extra power for any connected devices.
If your hub does not have an external power option I would suggest you purchase a new hub that does have an external power supply.

Good luck :)

Jan 25, 2011 | ASUS Eee 4G Notebook

1 Answer

My WD external HDD is not registering.


One or more of the hints below will probably sort out most USB problems with most USB portable / external hard drives and OTHER devices (though not always)

A few things to check but assumes
USB and Windows for other interfaces / operating systems (mac/ Linux) similar steps may be adapted to suit.

1. Ensure it is connected directly to the computer to a
USB 2.0 port not a USB 1.0 port as this can have effects on performance and reliability

2. Use only the cables that came with it NOT one that fits that may have been lying around or is longer. Not all
USB cables are equal even though they should be)

3. Do not connect through an external
USB HUB unless that hub is USB 2.0 AND has its own power supply.

4. Use ONLY the power supply that came with it if it has an external power supply Don’t use any other unless you know it has both the same voltage and current rating e.g. 12V 500mA anything rated below that would not work properly.

5. Always use the same port for connecting your devices. Some devices do not like being switched about. If switched they may want to install software / drivers again. This can be especially true if you move a HUB to another port


6. For FLASH DRIVES you should ensure that the device is set for "quick removal" using the drive control panel properties or use the
USB "Safely Remove Hardware" option. If you don’t do this there is a very strong chance that any files you transfer may not be there when you plug into another computer.

7. It is possible to remove drives from the enclosures in most cases and connect directly inside a PC to fully check it.
You should also do this to check the drives connections are not bad inside the enclosure.


8. If none of the above steps help look at updating the drivers from the manufacturers web site in the support section.

9. If you checked and fixed anything there and still have issues then check your hardware from CONTROL PANEL / SYSTEM / HARDWARE.
Any exclamation marks by hardware need fixing before you investigate any further

10. Ensure that you have set removable drives for "quick removal" or that you use the "Safely Remove Hardware" option often shown on the lower toolbar. It is possible that files my not be fully written to external devices before they are removed. This corrupts the file itself and even on occasion the drive.
SPECIAL NOTES
USB flash drives can fail for no apparent reason.
Sandisk Cruzers are especially bad for this.

USB hard drives should be treated with extreme care.
This is a real hard drive ! And knocks and bumps can quite literally kill them.

Note that if you hear a drive clicking or pinging this could be the worst thing you would hear.
Known as "The Click of Death"


On rare occasions it is possible that the PSU for the drive can also fail.

This is quite rare on the better quality drives but is still a possibility.

if this does happen it may be possible that the PSU supplies enough power to light the LED on the drive but not enough for the drive itself to operate..

In those instances any commonly available replacement with BOTH the same voltage and current rating will work
eg. 5V 700mA as may be written on a drive or the instruction / specification sheet that came with it.
NEVER use less than the req voltage and never use less than the req current although you can use a larger rated current. eg. 5V 1000mA would be fine and last longer than the original PSU.

If the drive does not show up in your hardware lists then using software of any description to try recover files is a total waste of time.

If the drive is still under warranty or you don't mind opening it up it is not uncommon for the connection between the interface board and drive to have worked loose esp. if the drive has been moved a lot.
In those circumstances opening the drive enclosure and removing the connection and then re-connection can also fix quite a few issues.


Hope this gives you the information you need

May 01, 2010 | Western Digital My Book Home Edition 500...

1 Answer

I replaced the USB adapter chord and know there's not enough power to run the drive. I think I need a DC adapter, 5V, 1A, that fits the drive.


If you get an error message "Insufficient power to operate USB device" when you plug in a USB device into the computer's USB port then this device is drawing power that the USB port can supply.
In case such as this, you need to purchased a powered USB hub and connect this hub into the computer's USB port and then connect the USB device into this powered USB hub.

Dec 06, 2009 | SimpleTech SimpleDrive Portable USB 2.0...

2 Answers

Targus Travel USB 2.0 4-port Hub


sometimes usb hard drives will not work through a usb hub.
if the drive works connected to the laptop but not the hub then that's how you'll have to use it.
it's also possible the laptop cannot power both the hub AND the drive, in whaich case you'll need a powered hub (one you plug in to the mains).

Sep 21, 2009 | Targus PAUH217U 4-Port USB Hub

1 Answer

MaxtorBasics 1Tb problems - won't permanently format


I devised these simple steps that tend to remedy quite a few issues with most USB portable / external hard drives and devices (though not always)
A few things to check but assumes USB and Windows for other interfaces / operating systems (mac/ Linux) similar steps may be adapted to suit.
1. Ensure it is connected directly to the computer to a USB 2.0 port not a USB 1.0 port as this can have effects on performance and reliability
2. Use only the cables that came with it NOT one that fits that may have been lying around or is longer. Not all USB cables are equal even though they should be)
3. Do not connect through an external USB HUB unless that hub is USB 2.0 AND has its own power supply.
4. Use ONLY the power supply that came with it if it has an external power supply Don’t use any other unless you know it has both the same voltage and current rating e.g. 12V 500mA anything rated below that would not work properly.
5. Always use the same port for connecting your devices. Some devices do not like being switched about. If switched they may want to install software / drivers again. This can be especially true if you move a HUB to another port
If you checked and fixed anything there and still have issues then check your hardware from CONTROL PANEL / SYSTEM / HARDWARE.
Any exclamation marks by hardware need fixing before you investigate any further
USB flash drives can fail for no apparent reason.
Sandisk Cruzers are especially bad for this.
USB hard drives should be treated with extreme care.
This is a real hard drive ! and knocks and bumps can quite literally kill them.

Jul 09, 2009 | Maxtor Personal Storage 3200 (U01E200) 200...

1 Answer

Does not work when cpnnected to the external USB hub. Says "Camers Off". Works OK when connected directly to MacBook USB port? Why?


Make sure your USB hub is working. Confirm by using the with other applications such as connecting your thumb drive or other connections. If other connections will work, then your external hub is okay. Other thing, if your usb hub runs at lower speed than 2.0, new gadgets connection may fail.

May 14, 2009 | Logitech Webcam

8 Answers

Power supply for Targus 4 hub usb 2


Most USB hubs do not need an external power supply, except when a connected USB device draws more power than the computer/laptop USB port can supply. In this case an external power supply will need to be connected to the USB hub.
Normally this would be a 5 volt power supply, but make sure the polarity on the connector matches the power connector on the hub, check the label on the hub, sometimes it states to power requirements of the hub as well as the polarity on the connector. Normally the pin on the hub's power connector is positive (ie. +5V)

Nov 13, 2008 | Targus PAUH217U 4-Port USB Hub

1 Answer

Usb drives


USB hubs operate at 5V DC power, as do a lot of things on your motherboard do. They are able to transmit DC power to a device which makes it possible for items to be plugged straight into a USB port and not have an external power supply.It sounds as though the main connection between the USB points and the power supply has become broken, as a lot of USB points are connected in series to save space. Also, one point on the USB line could have possibly become grounded. A fewer simple measurements with an OHM reader may help in this situation.

Mar 25, 2008 | Computers & Internet

Not finding what you are looking for?
Tripp Lite (U222-004-R) 4-Port USB Hub Logo

Related Topics:

71 people viewed this question

Ask a Question

Usually answered in minutes!

Top Tripp Lite Computers & Internet Experts

Cindy Wells

Level 3 Expert

5159 Answers

SHIVAJI YADAV
SHIVAJI YADAV

Level 2 Expert

188 Answers

240cpa

Level 3 Expert

548 Answers

Are you a Tripp Lite Computer and Internet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...