Brought me the same in repair, after the water, has found documents and remembered that here, too, was asked, I decided to download.
Good luck in the repair
I'm new here and finding it difficult to find what I need.
I have a HP Pavilion G6 laptop, the screen ribbon cable broke and I replaced it with a new one, as I turned it on I realized that the screen works but the backlight doesn't work.
After searching the net I found Badcaps.net and saw a thread mentioning the same problem, Apparently it's the fuse that's faulty on the motherboard, I then tried to locate it on the board to test but that was not very successful and while the board was on one of the other components sparked and now the board seems completely dead.
I need to Identify the components and find out if it is possible to replace and get my laptop up and running. May I ask assistance over here?
See pics below, I have marked out what I think was busted. I don't know much about technical names of the components, Please help me out.
Those are capacitors, if they are not shorted they are usually fine.
What's the motherboard model number?
Can you post high resolution pictures of both sides of the board?
I think those did short cause there was a spark there.
I'm having trouble attaching more photos, so I added it to google photos... I hope that's ok and I hope the resolution is good enough. Please see link below.
Quanta R33 motherboard, schematics and boardview attached. OpenBoardView can be used to open the boardview.
C22 and C6 look bad, not sure about C11.
You should remove at least C22 and C6, and check if +VIN_BLIGHT is shorted to ground. They will need to be replaced later, but for now for testing they can be left off.
Also L5 and L63 just above (this last one is not present on the schematics or boardview, and on your board they are resistors so you may have a different revision) may be bad. Check the resistance across them, should be 0.
YOU ARE A GENIUS!!! Thank you so much for the help... I removed C22 and C6. Tested it and then replaced them with the same components from another board that was blown. After that, I bridged L5.
And now my PC is like a monster again. I am super grateful for your help. So thorough, quick and speedy.
Great to see that you found the issue. But I would recommend you to replace L5 rather than bridging it. It somewhat acts as a fuse in this circuit so replacing it will help with preventing the damage to go furhter up the line if ever something goes wrong again.
You can replace it with another 0ohm resistor of the same size or a fuse (something like 3A 32V).
I will be doing that. I must say... This was the first time ever that I have soldered something so small. I think I have found a new addiction. I'm looking for more things to fix, people are so easy to throwing things out instead of just thinking a bit further and just try fixing the problem. Thanks again.
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