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  • Lenovo 320-15IKB - nie włącza się

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Lenovo 320-15IKB - nie włącza się

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#1 Lenovo 320-15IKB - nie włącza się

by krzysztof000 • 11 July 2024, 17:09
Witam,

Laptop Lenovo 320-15IKB, nie włącza się.
Model płyty głównej NM-B452.
Zauważyłem, że ktoś kombinował na płycie bo brakuje jednego mosfeta na PQ312 czyli AON7408L_DFN8-5

Załączam zdjęcie:

Image

Czy ktoś może pomóc i napisać jak naprawić te pady (pocynować) bo wszystko widzę na polu jest zlane ze sobą? Jak to doprowadzić do porządku?

Re: Lenovo 320-15IKB - nie włącza się

by Google Adsense [BOT] • 11 July 2024, 17:09

#2 Re: Lenovo 320-15IKB - nie włącza się

by matic • 16 July 2024, 16:18
krzysztof000 wrote:Czy ktoś może pomóc i napisać jak naprawić te pady (pocynować) bo wszystko widzę na polu jest zlane ze sobą?
Hello!
There is nothing wrong with the pads on the board, only a small piece of solder mask is removed. You can leave it as it is, so you just need to solder the transistor PQ312 as indicated in the following picture.
Image
The pins 1, 2, 3 must be connected together and pins 5, 6, 7, 8 as well.

Also measure the resistance to ground on any pin of resistor PR301.

Re: Lenovo 320-15IKB - nie włącza się

by Google Adsense [BOT] • 16 July 2024, 16:18
 This topic is marked as ARCHIVAL. Please only reply if your message contains the solution (Terms and Conditions p. 12.1).
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