Wednesday, December 24, 2008

Dell Inspiron E1505 Power Plug

This dell came in with the standard symptoms of not charging the battery or working on AC power.
It's becoming a more popular dell laptop were seeing as of late along with the E1405, E1705, E1401, E1501, and E1701. I believe this line of dell laptops is the predecessor to the Inspiron 6000 and 6400 series.
This uses the standard nine pin dc jack that dell has been using for the last four to five years.
Before opening the laptop I could hold the ac adapter plug at an upward angle and the laptop would power on. As soon as I let go the laptop would instantly power off.
You need to completely take apart this laptop to get to the dc jack.
When the laptop was all torn down I noticed a small burn mark next to a small chip on the motherboard called the power filter. I cleaned the area with electronic cleaner and re-soldered the power filter chip.
The power plug tested fine with a volt-meter and felt pretty solid so it wasn't replaced.
After re-assembling the laptop it powers on fine and the bad power filter was the culprit.

Dell Inspiron 1521 Power Problems

The 1521 is one of dells latest home laptops. It has since been replaced by the 1525 but uses the same dc jack as other dell laptops from the past four years.
It features a nice 15.4" widescreen, up to 4gb ram, AMD turion dual core cpu, optional integrated bluetooth, and much more.
This 1521 came in with a physically broken dc jack plug. It's very new and probably not susceptible to becoming loose as of yet.
It uses the standard nine pin dc jack and can use either a 65w (PA-12) or 90w (PA-10) ac adapter.
The laptop needs to be completely torn down to the motherboard to access the dc jack receptacle.
The power plug was replaced and the laptop powers on with no problems.
The only thing I wish the Inspiron family came with is a docking station.

Saturday, December 6, 2008

How to ship a laptop

This has been a common question and is very important when using us for our dc jack repair services. Never put your ac adapter on top of the LCD. This will shatter the LCD.
The best way ship is through Fed Ex. They offer a special laptop shipping that uses foam cutouts to properly fit any size laptop from 12"to 17". The box includes foam cut outs, anti-static bag, slot for ac adapter, and extra foam padding to put where you choose. It's also a nice option because if any damage happens to your laptop you're using their box and insurance and the claim process will go very smooth. These boxes cost $10 and sure beats trying to find a box, packing peanuts, etc.
If you don't have a Fed Ex store available UPS also offers a special laptop shipping box.
If you want to use your own materials than you need to ship it properly.
1. Make sure the box your shipping in is adequate. Those small shipping boxes you get from free from the post office, UPS, and Fed Ex are NOT ok. They don't provide enough room for adequate packing materials and should never be used. Is your laptop worth risking to save $10? I don't think so.
2. Use lots of bubble wrap!! You need atleast two inches of bubble wrap covering the whole laptop. Use packing peanuts or paper for under and above the laptop in the box.
3. Do not using Styrofoam. It's a decent packing material but explodes all over the box during shipment and can expose your laptop to damage.

If you still own the original box the laptop was shipped in that is a good option. Please use common sense and more is better when shipping a laptop.

Tuesday, November 11, 2008

Remvong a CPU form a laptop heatsink




When taking a laptop apart you will most likely get to the point of removing the cpu.
Most of the time you simply unscrew the heatsink and or fan and the cpu is removable.
Sometimes when you remove the heatsink the cpu is still stuck to the heatsink.
As shown in the pictures taking a small flathead screwdriver and insert under a corner of the cpu and lift up.
Don't give it a lot of force because you could damage the cpu.

Monday, November 10, 2008

ZV5000 ticking problem

Yet another ZV5000 on my bench with dc jack problems. Unlike most others when you wiggle or position the ac adapter you can hear a "ticking" noise coming from the dc jack area.
If the laptop will stay powered on for at least 20-30 seconds a dc jack repair will most likely fix the problem.
This ZV5000 would power on for a split second then shut off no matter what angle I held the adapter plug.
When the laptop was fully disassembled I noticed an "epoxy like" substance that some use to hold the dc jack in place and try to prevent the dc jack problem from happening again. The problem with this is you cover vital circuitry that also goes into powering a laptop.
After the jack was replaced the laptop was doing the same thing after the repair. I believe putting epoxy like substances on the motherboard is what caused the failure.

hp dv4000 DC Jack Repair


This hp dv4000 came in with no signs of life. I couldn't wiggle or position the ac adapter plug in any way to get it to charge or power on.
It uses a less common five pin, 1.65mm dc jack.
When the laptop was completely taken apart I could see a separation where the voltage pin meets the motherboard. This would explain why I couldn't get it to power on using the wiggle trick.
After de-soldering and re-soldering a new dc jack on the motherboard the laptop powered on with no problems.

Thursday, October 30, 2008

Asus W3000






This laptop came in with a physically broken dc jack. It was bent to the left and when torn down was halfway off the circuit board.
The dc jack is attached to a small circuit board that plugs into the motherboard.
It uses the same five prong, 2.5mm dc jack that many Averatec laptops use. The chassis of the laptop is very similar to some Averatec models I've worked on.
The dc jack was replaced and the laptop powers on with no problems.