Rep: 23
2
My Lenovo y50-70 Laptop is not turning on. I tried replacing the battery and the charger. Upon closer inspection of the motherboard. I found this:
It looks like a fried capacitor or something.
Is this possible to fix without replacing the motherboard?
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Rep: 449,8k
11
367
1,4k
I think that the make and model number of your motherboard is Compal LA-B111p. This information should be printed on the motherboard somewhere.
If this is correct then the faulty component (designated PL701 on the board) is an inductor, part number HCB2012KF-121T50_0805.
The HCB2012KF-121T50 is the part number and the 0805 is the smd package size of the component
If you search online using the part number only, you will find suppliers but most only supply in multiples of 50 units or more.
Just to verify that it is the designated PL701component, here's an image from the schematic.
Use an Ohmmeter to check for continuity from PU701 pin 8 to one side of PL 701, as can be seen on the schematic (arrowed)
If it isn't then, as a lot of the components around PU701 aren't designated, you may have to find out which component it is by using the schematic
Try checking for continuity from each of the pins on PU701 and see which pin connects to the pad where the burnt out component was (is?)
(click on image)
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What tools do I need to make this repair?
You will need tweezers or needle nose pliers and a soldering iron, to remove the faulty component from the board, a solder sucker or solder wick to remove any excess old solder from the pads on the board, and then use tweezers or needle nose pliers to hold the new component in position whilst you solder it on using fresh solder
Hello @jayeff and @gregoryvenezia,
did you order the component "HCB2012KF-121T50_0805" and happen to have any left? I'm interested in buying some from you.
Thanks for your reply
@sk1087 I ordered the component from DigiKey and they are processing my order now. I’ll let you know when I receive it. It’s going to take 6-8 days to get here after they ship it. I order 25 so, you could buy one off me and I’d be able to send it in a standard letter envelope which would be cheaper shipping. But if you want more of them there are about 6,000 in stock on DigiKey.
@gregoryvenezia Thank you! I need only one piece, but I would also take two pieces if possible. Which country do you ship from?
Rep: 229
4
Yes sure, find the board numbers and look for the schematic then you will see the capacitor numbers.
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