• Dell LA-E331P rev 1.0 pobiera 200mA nie startuje

Forum rules:Click here to view the forum rules

  1. Topic title should contain: the device's manufacturer, full model and the brief description of problem.
  2. Topic message should contain: the PCB marking code (required in case of hardware repairs), an extended description of problem, things you have checked/replaced/measured, your conclusions and the question. If you are not able to find the PCB marking code, please read THIS TOPIC. If you still cannot locate the PCB markings, please upload a clean, both-side photos of the mainboard - it is required to remove any films, modules or brackets possibly covering these markings.
  3. Before posting a new topic please read all topics in TRAININGS subforum and make a preliminary diagnostic based on the content of those trainings.
  4. Uploading of any complete schematics, BIOS / firmware files or any other kind of documentation, or linking to 3rd party websites with such files, is STRICTLY PROHIBITED. You can only upload the small portion of documentation or, link to BIOS file on UNVERIFIED BIOS FILES subforum, which simplifies the diagnostics/repair. You are not allowed to upload more then one complete page of instruction/schematic per single topic. The file you upload must not contain any watermarks, "confidential" markings, links or email addresses and cannot be password-protected.
  5. It is only permitted to describe one faulty device per single topic - you should always open a new topic for each subsequent device.
  6. Requesting of the full schematics, BoardView files, BIOS files or any other kind of documentation is NOT ALLOWED in this subforum. If you need to ask for any of these, you should open a new topic in DOCUMENTATION/BIOS REQUEST subforum.

#1 Dell LA-E331P rev 1.0 pobiera 200mA nie startuje


by inventco 5 May 2025, 13:46
Witam. mam płytę główną jak w temacie.
na płycie:
N17P-00-A1
SR32Q
SR30W
KBC; MEC5085-LZY-4

Podobno laptop zgasł nagle (tu nie mam pewności)
nie podnoszą się w ogóle napięcia zasilania cpu czy gpu
3,3V obecne
5V obecne 1.05 jest
laptop po podłączeniu wskakuje na niecałe 200mA po czym spada do 0.
Naciskam PWR i po chwili znów podnosi się do 200mA i spada do 0mA robi tak 2 - 3 razy i znów trzseba nacisnąć pwr....

nie widzę zwarć ani na gpu ani na cpu ani na mostku
pL1301 i pl1300 -12 ohm po schłodzeniu cpu gwałtownie rośnie do 60 ohm)
pc1020 - 1,5 ohm po schłodzeniu rośnie do 6ohm
pl1306 30ohm
pl1200,PL1201 - 4,5ohm
pl1500 - 140ohm
pl600 - 400ohm
pl1501 - 4ohm

Re: Dell LA-E331P rev 1.0 pobiera 200mA nie startuje


by Google Adsense [BOT] 5 May 2025, 13:46

#2 Re: Dell LA-E331P rev 1.0 pobiera 200mA nie startuje


by clops35 5 May 2025, 14:03
Cześć,
zmierz rezystancję do masy na dowolnym pinie PR300.

Co to za cewka PL1210?

#3 Re: Dell LA-E331P rev 1.0 pobiera 200mA nie startuje


by inventco 5 May 2025, 14:29
PR300 kohmy miernik pokazuje okooło 10k
PL1210 pomyłka poprawiłem pl1201

#4 Re: Dell LA-E331P rev 1.0 pobiera 200mA nie startuje


by clops35 5 May 2025, 14:45
Z tego co widzę to tu chyba też jest błąd pewnie chodziło Ci o PL1500
inventco wrote:pl1501 - 4ohm


Czy płyta po podłączeniu zasilacza stale wytwarza 3 i 5V, czy tylko po wciśnięciu włącznika?

Zmierz napięcia po podłączeniu zasilacza na:
n.7 PU400,
n.1, 4, 5 PU203.

Zmierz napięcia po wciśnięciu włącznika na wszystkich cewkach po wciśnięciu włącznika gdy płyta pobiera ~200mA, będzie konieczność kilkukrotnego uruchamiania.

Re: Dell LA-E331P rev 1.0 pobiera 200mA nie startuje


by Google Adsense [BOT] 5 May 2025, 14:45

Who is online

Users browsing this forum: No registered users and 5 guests

_______________________________
All rights reserved. Unauthorised copying of this website's content or any of its part is strictly forbidden.
Any trademarks, brand names, products or services published on this website belong to their legal owners, are copyrighted and used for information purposes only.