Raspberry Pi PWR LED illuminates, but doesn't turn on or faint buzzing when connected to power Repair: Difference between revisions

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==Solution==
==Solution==
See [[Raspberry Pi MXL7704]]
See [[Raspberry Pi MXL7704]]
===Diagnostic Steps===
===Repair Steps===

Revision as of 20:53, 13 January 2024

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Raspberry Pi PWR LED illuminates, but doesn't turn on or faint buzzing when connected to power Repair
Device Raspberry Pi
Affects part(s)
Needs equipment
Difficulty
Type


Problem description

PWR LED illuminates but doesn't turn on or faint buzzing when connected to power supply. Missing voltages at a GPIO pin.

  • Pi 3 (A+ and B+)
  • Pi 4 (all)
Example image (Figure 1) -- No image yet. Help expand this page by uploading it!

Symptoms

  • The red PWR LED illuminates, but the system doesn't turn on.
  • There is a faint buzzing sound when power is supplied to the PCB.
  • 5V present at GPIO 2, but no 3.3V on GPIO 1.

Solution

See Raspberry Pi MXL7704

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