Question about D-Link (DMC-1001) Power Supply

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Its seems the internal power supply fails and burned out.... some are saying it is common issue of all d link switching hub? is it possible to use an replacment power supply?..

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Its not a common issue it the problem from ur building earthing plz chek voltages for this u get i.e, neutal face and earth
in earthing u have to get only below 3 volts in case u get more than that its sure ur problem that ur facing is with voltage variation
the common issues of this switching is


I administer a small network for a cab company, and have lately been battling an internal connectivity problem for the last several days. It seems that 2 of the 5 computers on the LAN intermittently "drop" connection without losing their IP addresses. If I disable the network connection on the "dropped" machine, and then immediately re-enable it, it seems to work for anywhere from 5 minutes to a couple of hours, then "drops" again. All LAN IP addresses are configured manually. I've posted an image of the network map at http://www.geekcavecreations.com/images/network_map.gif to illustrate how the LAN is arranged.

The local network has 2 computers that connect to the internet through the DSL router, one for ICS, and the other has an external web server (neither one has connectivity problems).

One computer on the LAN has an internal web server that handles our dispatch program. All computers on the network need to be able to access this box.

The dispatch client has to access the dispatch server, but can't have internet access. It's blocked from the internet through the simple expedient of not having an external DNS server assignment.

Now, for the meat of the problem. I've checked and re-checked the configurations for both the dispatch server and the dispatch client, and find no problems. Both have the most recent drivers for the network cards, and both have new cables. I've swapped out a known good hub for the LAN, and have made sure that there are no mis-configured hosts files. As outlined previously, disabling and enabling the NIC on the offending machine will restore connectivity for a while. I've checked each machine for an overheating problem, just in case, and find no trouble there. All machines are running XP Pro.

I can't shake the feeling that I'm missing something basic and simple, but I'm at a loss as to what that might be. Any suggestions?

Posted on Mar 28, 2011

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Power adaptor got burned


Try another power adapter, it may have been damages by a power surge.
The power adapter may just have failed and caused no damage to the hub or the hub failed and caused the power adapter to fail as well.

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My computer was knocked forward it went bang and then smelt of burning - I have been told that it might be the internal powe pack can you help?


If your desktop computer went bang from the back of the computer and the burnt smell comes from the fan grill of the power supply then the switch mode power supply definitely failed. The bang and burning smell was probably one or more of the capacitors that has exploded inside the power supply.
You can replace the switch mode power supply, make sure you purchase one that has the same total wattage or higher wattage.
There is a chance that when the power supply failed it may have caused a voltage spike that could have damaged some other components. You won't know until you replace the faulty power supply.

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Computer says this drive is not accessible. It has worked fine for two years. It will work on my laptop. I am using Windows Vista


A couple of things here. First, make sure your usb ports are working on your computer. Try plugging the unit into a different usb port. For example, if you usually plug it into the back, try plugging it into the front. If this doesn't work, get a "Powered" usb hub. Your usb ports work on 5volts. Even when they start to fail, they will recognize "non powered" devices like thumb drives or camera cards. Another issue is that the power supply may be failing. Make sure you're using the power supply that came with the drive. If you say it works on your laptop, I'm thinking that your pc's usb port might be failing. A powered hub should resolve this issue. Hope this helps.

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My LG Flatron 1710S computer screen doesn't have any power. Sometimes the power light will start flashing but most of the time it stays blank.


This is a common issue, the power supplies in LCD monitors fail prematurely. (if your monitor has an internal power supply) , Double check all your power connections, but it sounds like the internal supply is toast, (its a simple capacitor replacement to fix, but cost to do this job seems to always outweigh a new monitor purchase) sorry to be the bearer of bad news.If you find my answer helpful albeit poor news, please use the thumbs up feedback.

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the switch contacts have probberly arked and burnt away, u/s new switch needed

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Replace capacitor C3 47uf@25V. It will fix that ADP20KP 90% of the time.

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Hi and welcome to FixYa,

Sorry to be bringing you the bad news but the D-Link has internal electronic faults. Most common would be the +5VDC voltage regulator shorting and supplying the full voltage to the logic ICs. They in turn burn because of over voltage. If the LEDs would at least blink on start-up, then problem would be on the reset/init trigger. On the other hand, if on power on all the LEDs lit up continuously, then the initial condition would be the most likely scenario.

If you would factor in the cost of repair, the down time on the entire network and the efforts to effect a reasonable repair, you may want to re-evaluate your options and consider replacing the switch being mission critical in a wired network.

A request...I am aware that I have not provided you a fixing solution but just stated a technical opinion. I would appreciate that you rather not rate this at all since any rating other than a 'FixYa' would lower down my ratings. I could just not let your request for assistance go unanswered.

Good luck and thank you for using FixYa.

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Emachines have notoriously cheap power supplies. Often, while the power supply itself doesn't fail, it causes the failure of motherboard components, essentially trashing the computer.

Try the following:

First check and make absolutely certain that the power switch connector is properly connected to the motherboard. (Take standard grounding/safety precautions: wear a properly-grounded grounding strap, for example, when working with any internal components.)

Obtain a known-good power supply of equal or greater capacity to your eMachines PS and switch 'em out. 

If either of these fixes your problem, well and good. If not, the problem may be, as is all too common with eMachines power issues, a motherboard issue caused by the power supply.

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hi there first i would confirm you don't have power supply issue, replace the fuse and try different power outlet failing that it is quite common for bosch on/off switchs to burn out.

hope this is of some help

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