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Old 01-24-2021, 08:58 AM   #1
wmhar
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Default Boardview Dell Inspiron 15r-5521 LA-9104P

Hey, new to this forum and totally no skills, so this is a learning experience for me.
I have this laptop, disassembled due to no power whatsoever, pulled motherboard and found a chip burned off the board. I have found schematics that point to the item but would like a visual of the board and cannot find one.

The board is LA-9104P, what part is not covered up by a sticker. The missing component appears to be labeled PL601 and the burn is pretty severe, maybe the board is too damaged. Cannot get a good pic to post.

The part is TAI-TECH HCB1608KF-121T30

I have nothing to lose so I thought about repairing myself as a learning point.
Can anyone assist with a boardview to confirm. I am sure more info is needed but I an stretching getting this far.

Thanks for any help, and I realize there are many steps before and after, but I just started with the damage.
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Old 01-24-2021, 04:29 PM   #2
lg_cat
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Default Re: Boardview Dell Inspiron 15r-5521

Look this
PL601 - HCB1608KF-121T30_0603
Attached Images
File Type: png PL601.png (82.0 KB, 157 views)
File Type: png PL601 - HCB1608KF-121T30_0603.png (29.6 KB, 66 views)
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Old 01-24-2021, 04:37 PM   #3
lg_cat
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Default Re: Boardview Dell Inspiron 15r-5521

see
Attached Images
File Type: png PL601 - HCB1608KF.png (50.3 KB, 73 views)
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Old 01-25-2021, 01:04 PM   #4
wmhar
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Default Re: Boardview Dell Inspiron 15r-5521

I am not convinced the PL601 is the correct label, even though that is right beside the damage. I saw a picture of a board for sell and the component looked more round than this part.

I am including the best pic I could get, but does anyone have a visual pic of a board showing the missing component?


Thanks.
Attached Images
File Type: jpg 63305652495__5178C4A9-8FCA-4106-B743-15983D8524D7.jpg (766.7 KB, 77 views)
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Old 01-25-2021, 08:01 PM   #5
anshad
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Default Re: Boardview Dell Inspiron 15r-5521

The component which burned is indeed a coil (SMD type). I am attaching a photo of the board also. In my personal experience, a coil never burn out itself. Usually it's caused by a short circuit on the output side which causes excessive current flow through the coil and as a result the coil burns out. You can either use a SMD coil from a scrap board or simply use a jumper connection to bypass it. However you should clear the short circuit first, if there any. Measure the output side resistance or diode mode value in reference to GND and you will know whether it is the case
Attached Images
File Type: jpg DELL Inspiron 3521 LA-9104P UMA.jpg (932.0 KB, 81 views)
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Old 01-27-2021, 06:00 AM   #6
wmhar
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Default Re: Boardview Dell Inspiron 15r-5521

I was also thinking something else caused it. I will be working on the other diagnostic steps, hopefully I can make progress.

Thanks all for your replies and assistance !
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Old 04-08-2021, 08:52 AM   #7
James Mi
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Default Re: Boardview Dell Inspiron 15r-5521

Quote:
Originally Posted by lg_cat View Post
Look this
PL601 - HCB1608KF-121T30_0603
friend can you help me by saying where did you get the boardview of that board please?
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Old 04-08-2021, 10:41 PM   #8
mcplslg123
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Default Re: Boardview Dell Inspiron 15r-5521

Here it is
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File Type: rar Dell 3521- LA-9104P Boardview.rar (245.8 KB, 907 views)
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Old 04-09-2021, 01:30 PM   #9
James Mi
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Default Re: Boardview Dell Inspiron 15r-5521

Thanks Friend!
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Old 04-10-2021, 01:45 AM   #10
SMDFlea
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Default Re: Boardview Dell Inspiron 15r-5521

Quote:
Originally Posted by mcplslg123 View Post
Here it is
Thank you
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Old 10-17-2021, 01:12 PM   #11
tranhaist82
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Default Re: Boardview Dell Inspiron 15r-5521

Quote:
Originally Posted by mcplslg123 View Post
Here it is
thanks pro
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Old 11-17-2021, 11:17 PM   #12
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Default Re: Boardview Dell Inspiron 15r-5521

Quote:
Originally Posted by mcplslg123 View Post
Here it is
good
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Old 12-06-2021, 11:21 PM   #13
gmacz
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Default Re: Boardview Dell Inspiron 15r-5521

Thank you very much.
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Old 03-26-2022, 02:33 AM   #14
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Default Re: Boardview Dell Inspiron 15r-5521

Quote:
Originally Posted by mcplslg123 View Post
Here it is
Thanks..
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Old 03-30-2022, 08:10 AM   #15
Nokyi
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Default Re: Boardview Dell Inspiron 15r-5521

Thanks a million
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Old 03-31-2022, 10:12 PM   #16
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Default Re: Boardview Dell Inspiron 15r-5521 LA-9104P

Thank you,,,,,
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