I had Dell replace my motherboard because the power jack broke off the circuit board. Since the replacement, the computer runs sluggishly and many of the components no longer work or are accessible via Windows (I have Windows XP Pro). Instead of replacing the replacement refurbished motherboard, Dell wants me to back up the data and reinstall Windows but my CD drive won't record data so I may be relegated to purchasing external storage via the USB port (which also may not function). Is this a Windows issue or a hardware issue?
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Re: Dell E-1705 Motherboard Replacement
Start by checking ControlPanel/System/Hardware/Device Manager. Look for yellow marks that indicate devices not installed properly. This is usually a driver issue, and Dell should have given you a disk with the drivers you need. Are you getting any error messages?
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Here below are possible causes and troubleshooting steps of laptop that can't power on, hope it may help: Possible causes:
1. AC adapter failure. 2. Power jack failure. 3. Motherboard failure.
Possible troubleshooting steps and repair solutions: 1. Test the AC adapter with a digital multimeter. It's possible that you have a failed AC adapter. If you don't have a multimeter, test your laptop with another known good AC adapter.
2.It's possible that power jack (socket where you plug the AC adapter) is broken. Remove the motherboard and take a closer look at the power jack. In some cases you can fix the jack by resoldering it on the motherboard. In other cases you have to replace the jack with a new one. Using a multimeter, test if the power goes to the motherboard through the jack.
3. If replacing the AC power adapter and jack on the motherboard doesn't help, most likely you have a bad motherboard. Replace the motherboard.
A) AC adapter (Charger) is bad. Use a multimeter, and check it out.
[ DC Voltage. Test plug of cable that plugs into laptop. Positive (Red) probe lead of multimeter, to Center Hole of plug on AC adapter. Negative (Black) probe lead touches outside cylindrical metal shell. You should read close to 19.5 Volts (DC) ]
AC adapter checks out OK?
B) DC Power Jack is bad
[The DC Power Jack is the port on the laptop, that the AC adapter plugs into. On laptop may be marked DC_IN ]
Damage to DC Power Jack prevents laptop from charging, or running strictly off of the AC adapter.
Battery removed take a No.2 pencil's eraser, and see if you can gently move the Center Pin, of the DC Power Jack. ANY perceptible movement means replacement of the DC Power Jack.
The pin itself may not move, and the entire jack moves. The good news is the DC Power Jack is not soldered to the motherboard. It is soldered to a separate, therefore replaceable, small circuit board,
Looking at the view on the right, note the pins sticking out. You are looking at the back view, and the jack is laying on it's side. The pins go through the laptop's motherboard, and are soldered to the motherboard.
Where the pins are soldered to the motherboard is a solder connection. Commonly referred to as a Solder Joint.
Plugging in, and missing the hole of the jack, can cause the AC adapter plug to damage the DC Power Jack, by bumping into it.
Bumping into the plug of the AC adapter, while plugged into the DC Power jack, can cause damage to the jack.
Can cause cracking of the above mentioned solder joints. This leads to an intermittent contact, and eventually no contact, of the DC Power Jack TO the motherboard.
In this case the solder joints are just re-soldered.
Damage to the body of the jack itself means replacement of the DC Power Jack, or replacement of the USB/DC Power Jack circuit board, itself.
(Unless you, or an acquaintance can un-solder, and solder real well, the option may be to just replace the USB/DC Power Jack circuit board)
DC Power Jack proves to be OK?
Problem is one, or more Power MOSFETs on the motherboard. These determine if the Battery needs a trickle charge, or a full charge, or no charge at all. Also determines if the laptop is to just run off of the AC adapter, and not the Battery.
This example is for HP Pavilion dv6000 and Pavilion dv9000 series of Notebook PC's. You can use it for cross-reference information. (Location of the Power MOSFETs on your laptop's motherboard. General idea of what they look like ),
Or, for $399, you can go to Walmart and get a new Toshiba laptop.
The reason it costs so much is the labor involved. To repair this break, it literally requires a complete disassembly of the laptop, replacing and soldering on the connector, then reassembling the laptop. Laptops, unlike desktops, were not made for easy service, due to the fact that they're trying to pack 10 pounds of stuff in a 2 pound box, for lack of a better analogy.
YOu are having issue with the motherboard. ther might be a short circuit or bad part on the motherboard that might have caused it not to detect the ac adapter and system will not power on. You need to have motherboard replacement.YOu can contact dell for repair options.
Yes you can replace the power adaptor. You may also remove the solder from the existing adapter and re-solder it back on which is what I did. If you just want to replace it I suggest Ebay before I repaired mine I ordered a new one for $5 w/ free shipping.
Generally, this a not a process that can be done by most people, you need to be a good circuit board soldering specialist.
The Jacks for most motherboards can be found on EBay and several places advertise there to replace the Jack on your MB for $100.
In most cases, for the same price, maybe less, you can buy a replacement motherboard.
If your motherboard traces are damaged, I would highly recommend replace the board. This model laptop can have considerably high current running through that jack and traces. if anything is weak it will burn through.