Saturday, October 18, 2014

Repair TV LG Plasma Screen no Power

This is a fix for the LG TV Plasma model 3500 and it will work for many other TV models. The screen tooks longer to turn on until it went completely off. I tried the hair drier trick that worked every now and then but it was getting worse anyway and it needed a fix.
When the TV screen does not turn on it is 90% because of a power supply board problem. It may be the capacitors, or not.
I took the cover off and there you can see the supply board on the left hooked to the main board.

When I examined closely the supply board the capacitors were all right, so I turned the board around and repaired all the bad welds, there were seven or eight that looked bad. I really had a hard time with my soldering iron as it took about 5 minutes to heat every spot, I think it may be a faulty one but it did the job anyway and we can enjoy our TV back.
This TV costed about 500 euros 4 years ago and to repair it today it has only costd me a few drops of soldering tin. And patience :) I am glad it works know and I wonder how many things people throw away because they don't know it can be repaired easily.

You can see all the details in my video:

Update on Oct-2016 : I had to go through some welding points again, two years later, as the problem with power on came back, the screen did not turn on. I have got a much better soldering iron this time, and wonder: it is working back again.

Samsung EVO SSD 250gb on MacBook Pro late 2008

The fantastic thing about SSD (Solid State Drive) drives is that there are no mechanical part in it, thay have layers of flash memory inside, so there is no magnetic friction or anythyng as in HDDs. They consume less power making your battery last longer.
And, best of all it can really boost your laptop. This time the upgrade will need an spacer as the Samsung Evo SSD is only about 7mm thick against the 9mm HDD.
The material you need to install the SSD drive
The Phillips 00 Screwdriver and a Torx T6 Screwdriver and the plastic tool to lift up the keyboard gently.
You will have to unscrew all those tiny screws on the four sides around the MacBook and the four long ones you see besides the ram memory slot.
 There are also two more screws inside the battery place.
And here it's time to lift up the upper case with the keyboard in it. Do not force anything, if you see that it doesn't come up easy, check if there still some more screws. Once it comes up you will see the cable ribbon from the keyboard connected to the main board. You will have to unplug it.
There on the left corner is the Hitachi HDD. Unplug the ribbon in the middle of the main board,

To pull up the lever that holds the HDD unscrew the two torx first.
Then pull up the HDD
Transfer the side screws from the HDD to the SSD drive, turn the Samsung SSD upside down, not as you see in the picture.

 There you can see the diference between an SSD and a HDD. The SSD is 2mm thinner.

That's why we need the spacer.
Then connect the SSD drive and mount back everything in reverse order.
That's it!
You can find more details to dissasemble the MacBook Pro in another upgrade I did.