• HP LaserJet Pro MFP m26nw uszkodzony zasilacz

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HP LaserJet Pro MFP m26nw 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.
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#1 HP LaserJet Pro MFP m26nw uszkodzony zasilacz

by dam234 • 11 February 2021, 20:26
Witam.

Drukarka: HP LaserJet Pro MFP m26nw
Oznaczenie zasilacza: RM2-9569

Podczas normalnej pracy drukarka nagle się wyłączyła i była martwa. Brak reakcji na włącznik itp. Po rozebraniu i obmierzeniu zasilacza okazało się ze padł główny tranzystor na stronie pierwotnej oznaczony 2SK3564. Po wymianie tranzystora płyta nadal nie żyje. Brak napięcie na transformatorze na stronie pierwotnej jak i wtórnej. Powinno być chyba 24V. Na płycie nie widać wizualnie więcej uszkodzeń.

Czy ktoś ma jakiś pomysł ?
Ewentualnie jakaś dokumentacja serwisowa ?

Re: HP LaserJet Pro MFP m26nw uszkodzony zasilacz

by Google Adsense [BOT] • 11 February 2021, 20:26

#2 Re: HP LaserJet Pro MFP m26nw uszkodzony zasilacz

by matic • 11 February 2021, 21:18
Hello!

Please, post a clear pictures of highlighted area of the board (picture below) from top and bottom side of the board.
Image

#3 Re: HP LaserJet Pro MFP m26nw uszkodzony zasilacz

by dam234 • 18 March 2021, 17:00
Temat rozwiązany.
Usterką okazały się zimne luty na płycie za transoptorami
Dziękuje za pomoc

Re: HP LaserJet Pro MFP m26nw uszkodzony zasilacz

by Google Adsense [BOT] • 18 March 2021, 17:00
 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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