DIY: HP Laptop Power Adapter Repair

Got my wife one of those netbooks HP 2140 last year, the last couple of months it suddenly won’t turn on. The warranty was out and thought of the worst like motherboard failure etc.. Luckily it turns out the battery was drained and the power adapter was not working to charge it. After some googling it turns out this is common on HP laptop power adapters, there is a break going either on the pin side plug or the strain relief. So I was able to pinpoint the problem and just wiggled the strain relief and then taped it to position so it wont move that much. The strain relief is the rubber on the cable wire after the main power adapter box.  Tape fix was not elegant to look at but it worked.

Several days ago the HP netbook went dead again, power supply tape fix is not working anymore, exhausted trying to wiggle the strain relief and cable wire. Using another similar power adapter and netbook charged. So back to the power adapter problem I’m sure you can get a replacement for this online from $10-$25. But here in the Philippines maybe HP service center or distributor it’s pretty much around $20-30. But if your DIY like me, It was time to open it up look in the insides and repair it.

What I needed to do is cut the wires inside the strain relief,  remove the soldered wires, strip out portions of the longer wire to solder them back to board.

The tools I used were:
1. Hammer
2. Long flat knife
3. Cutter
4. Soldering Iron
5. Cable ties.

So first position the knife flat on the opening of side of the power adapter and slightly tap it going from base to up. This will open up the case instead of prying it open with a screwdriver. Do that on all sides then it would come off.

Next there is a metal sheet protector, remove them. On the bottom part it’s soldered to an IC. So heat it with a soldering iron and remember that extended IC as you will iron it back later. Now the strain relief is kinda messy, I had to cut it with a cutter to open it up then cut the wire. Next I unsoldered the portions of the wire connected on the board. Total there were three wires. First is the outer wire, white wire and the blue wire inside. So cut the wire and trim it the wires. Solder it on the same location as you did when you removed the old one.  Tape the remaining expose wires then  put back the strain relief.  Put back the sheet casing, iron the IC to the bottom part like earlier. Close the box and tie it with a zip a couple of cable ties to hold in place.

And there you have it, I managed to salvage the power adapter of my wife’s HP netbook.

PS. Pics are kinda blurry as I only took them with my phone’s cam. HTC Hero phone camera sucks at natural and low light! 🙁

Fixing power problems with your LG Flatron Monitor (LG1753S)

A couple of days ago during the weekend, I booted up my trusted pc lo and behold I heard the Windows startup sound but my LG monitor (LG1753S) screen is blank. I had this monitor for about 3 or 4 years now without any glitch. Used to leave it open for 72 hours sometimes. And this time it had failed to start up. So after checking the power is properly plugged, I shut down my pc again. Turned off the EPS and turn back on, the monitor power lit up(hooray?) but after a few seconds, its gone again.

So its final my LG screen is dead. After a couple of googling on my alternate internet device(HTC Hero), I found out it’s easy to fix. Thanks to this website for the amazing archive of fixing LCDs. http://www.ccl-la.com/blog/index.php/lg-l226wtq-bf-monitor-repair/. Just several capacitors failing me, being the jack of all trade that I am I decided I’ll fix it myself. I went to my trusted electronics shop and purchased some capacitors according to the article, but found out it wasn’t the right one. LOL. I opened up the monitor and upon inspection, the capacitor ratings are 4 1000uf 25v, 1 470uf 25v and 1 680uf 25v high temp. So back to the electronics shop. So after removing the old capacitors and soldering the new ones. The Monitor is good and alive again. Cost around $3 only for the whole thing.

Sorry for no pictures as the pictures got corrupted.

So a little bit of guts and the need to save on service fee, just DIY(Do-It-Yourself), make sure you have the right tools and check the ratings of the capacitors before purchasing.

    • Phillips Screwdriver
    • Soldering Iron
    • 1000uf 25v
    • 470uf 25v
    • 680uf 25v

[amazon_link asins=’B00009V431,B071S5Z1R2,B00E6PAQA4,B06W9JHR69,B00HKSL7AW’ template=’CopyOf-ProductGrid’ store=’lopau07-20′ marketplace=’US’ link_id=’5019665c-25da-11e8-9f24-672a8afef1e7′]

Goodluck!

Capturing from a miniDV to a PC

Well this is sort of a short review and a tutorial on how to capture from a minDV Sony handycam to your PC.

But before that here are some background. I still have this Sony DCR-HC48 camcorder that I bought couple of years ago back when HD camcorder were still pretty expensive about $800-$1500. With the Sony DCR HC series you can transfer video only with a i.LINK cable to firewire. The USB cable is only used to transfer still images. Firewire offers the best quality video transfer unlike USB methods for capturing from still tapes.

To get started on a PC you need to an i.LINK cable, a good capture card and a good capture software, I suggest you go for the PCI-Express capture cards and not the PCI version as it would soon be obsolete, plus PCI-E is more faster.

The one I bought is a Belkin 3-Port firewire PCI-E. So just open up your pc and install it on the PCI-E slot. It’s plug and play so no required drivers when you start your PC.

Belkin 3 Port Firewire PCI-E Card

Belkin 3 Port Firewire PCI-E Card


Belkin 3 Port Firewire PCI-E Card

Belkin 3 Port Firewire PCI-E Card


Installation

Installation


i.LINK Cable

i.LINK Cable

For the capture software I used the software that came with the Sony DCR, I found that it offers better depth than Windows Movie Maker. I didn’t try it yet on commercially sold video editors which has built in capture features.

Below is a sample video captured then I re-saved the file using Windows Media Player to reduce filesize but with a bit of quality loss. (btw the one with fairy costume is my daughter)

Overall that is how to get started. The firewire PCI-E is amazingly fast and produced no drop frames. Windows Media Player capture quality is kinda poor so go look into other capture software.

On a different note I used to use an MacBook Pro before for capturing videos. Another reason why I love a Mac which by review comes with almost the complete ports which includes the i.LINK firewire port plus comes with a free powerful software iMovie for capturing and editing movies.

Enabling a New Installed SATA Drive

Just got a new SATA drive, if you have your primary drive as an IDE and install a new SATA drive, it won’t show up instantly when you go to My Computer. That is because the drive is not formatted yet. To fix this you need to format the drive and assign a label. Here are the simple steps.

After the device has been detected and reported ready for use.
Go to Start > Control Panel > Administrative Tools > Computer Management

comp-management

Next select Disk Management under Storage. Your new sata drive should be detected. Right click on the drive and choose Format, follow the wizard steps and give the drive a label.

That’s it. Once done your new drive should show in the My Computer and ready to use.

Reset Administrator Password for Vista or XP

Over consecutive weeks I have couple of friend and a cousin who cannot use their laptops because they forgot or dont know the password for the administrator to login.
Read the rest of this entry »