Re: Apple Mac Mini A1347 Late 2014 completely dead no power
The 5V from S4 is ok now. But now i dont have the VCORE voltage. Now suspecting U7400 and/or Q7500+Q7511, Q7520+Q7521, U7510 / U7520
hawkinf
New Member
Last Activity: 04-14-2025, 06:50 AM
Joined: 08-02-2022
Location: Sao Jose dos Campos
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Re: Apple Mac Mini A1347 Late 2014 completely dead no power
I got a TPS51980 spare (U7201), but the problem persists, I think the problem maybe in the control signal in the pin4 of U7201 (P5VS4), i got the 5V, and then goes to 0V, in an infinite loop.Leave a comment:
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Re: New Members - please post your introductions here
Hi!
Excuse me for my english. I am from Brazil, and i am eletronic engineer. I have a local repair shop here.
I am in the marketing for over than 25 years. My skills are more focused in software reverse engineer, data recovery and IT.
I use win10 as i need for researching, but i prefer linux.
My hobbies are the old computers and videogames. I have DE-10nano w/128MB (FPGA).Leave a comment:
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Re: Apple Mac Mini A1347 Late 2014 completely dead no power
Hi! i have a problem with 820-5509-A, it only have 3V on U7201, but i dont have the 5V. So... seems that the LDO Voltage i only have the 3V and not the 5V, have any ideas? U7201 defect?Leave a comment:
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