• iPhone 6S zalany - brak reakcji

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iPhone 6S zalany - brak reakcji

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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.
  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.
 This topic is marked as ARCHIVAL. Please only reply if your message contains the solution (Terms and Conditions p. 12.1).

#1 iPhone 6S zalany - brak reakcji

by macsurf • 5 September 2019, 11:07
Witam

Dostałem zalanego iPhona 6S ( oznaczenie kodowe: 820-5507-A). Po podłączeniu zasilania - żadnych reakcji.
Dokonałem kilka pomiarów (DM - tryb diody):

Power Consumption: 0 - 0.06A
PP_BAT_VCC: ~0.50 - 3.78
PP_VCC_MAIN: 4.26V
PP_0V9_LDO3: zwarcie - wykrywane tylko wtedy kiedy jest zasilanie zewnętrzne
PP_CPU: 0.90V | DM 576 | 21.8 Om
PP_GPU: zwarcie | DM 13 | 11.4 - 12.4 Om
PP_1V8: 1.79V
PP_0V9: 0.9V
TRISTAR_DP1_CONN_P: DM ~390
TRISTAR_DP1_CONN_N: DM 370-400
TRISTAR_DP2_CONN_P: DM 500-693
TRISTAR_DP2_CONN_N: DM 503-690

Wygląda jakby to był układ U_PMU_RF bo on generuje napięcie 0.9V chyba, że Tristar w tym wypadku ma coś do powiedzenia zważywszy na skaczące napięcie na złączu baterii?

Re: iPhone 6S zalany - brak reakcji

by Google Adsense [BOT] • 5 September 2019, 11:07

#2 Re: iPhone 6S zalany - brak reakcji

by Slaw • 9 September 2019, 23:41
Jeśli po włączeniu płyta wisi na 0.06A to możlowe, że masz problem z magistralami i2c. Prawdopodobnie jest bałagan pod którymś z układów, który się po nich komunikuje, Poszukaj na schemacie hasła i2c to znajdziesz wszystkie układy, które jej używają.

Re: iPhone 6S zalany - brak reakcji

by Google Adsense [BOT] • 9 September 2019, 23:41
 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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