• Monitor Dell U3818DW [płytka zasilacza 4H.3KS02.A00] Uszkodzony zasilacz

It is currently 28 February 2025, 18:48

Monitor Dell U3818DW [płytka zasilacza 4H.3KS02.A00] Uszkodzony zasilacz

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  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.
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#1 Monitor Dell U3818DW [płytka zasilacza 4H.3KS02.A00] Uszkodzony zasilacz

by TipSerw • 3 February 2025, 12:28
Cześć,
Trafił w moje ręce monitor Dell U3818DW. Po otwarciu, okazało się, że uszkodzony jest zasilacz. Kilka rezystorów popalonych, wystrzelony jeden układ, przepalony kondensator. Potrzebuję pomocy w dobraniu odpowiednich elementów oraz w identyfikacji wystrzelonego układu.

Rezystory których nie mogę zidentyfikować, bo są nadpalone:
R627, R628, R629, R631, R641, R632

Uszkodzony kondensator na zwarcie:
C628

Wystrzelony układ:
IC621

Z góry dziękuję i pozdrawiam
Image
Image

Re: Monitor Dell U3818DW [płytka zasilacza 4H.3KS02.A00] Uszkodzony zasilacz

by Google Adsense [BOT] • 3 February 2025, 12:28

#2 Re: Monitor Dell U3818DW [płytka zasilacza 4H.3KS02.A00] Uszkodzony zasilacz

by matic • 3 February 2025, 12:49
TipSerw wrote:Wystrzelony układ:
IC621
Hello!
The missing part of the chip is may still be in one piece and may be lying somewhere inside the device. Try to find it.

#3 Re: Monitor Dell U3818DW [płytka zasilacza 4H.3KS02.A00] Uszkodzony zasilacz

by TipSerw • 3 February 2025, 13:14
Yeah, i tought about that, unfortunately didn't find it :(

Re: Monitor Dell U3818DW [płytka zasilacza 4H.3KS02.A00] Uszkodzony zasilacz

by Google Adsense [BOT] • 3 February 2025, 13:14
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