MacBook Pro A1708 Not turning on, no current draw at 5V repair

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Revision as of 09:01, 27 October 2023 by ASRepairs (talk | contribs) (Created page with "{{stub}} {{Repair Guide |Device= |Affects parts= |Needs equipment= |Type= |Difficulty= }} ==Problem description== <nowiki>#</nowiki>incomplete thumb|Example image (Figure 1) -- No image yet. Help expand this page by uploading it! ==Symptoms== *MacBook not turning on *Drawing 0.00A at 5V (No current draw) ==Solution== PP3V3_G3H is most likely shorted to ground with a 0–1 Ω short, most likely due to bad capacitor. When PP3V3_G3H is direc...")
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MacBook Pro A1708 Not turning on, no current draw at 5V repair
Device
Affects part(s)
Needs equipment
Difficulty
Type


Problem description

#incomplete

Example image (Figure 1) -- No image yet. Help expand this page by uploading it!

Symptoms

  • MacBook not turning on
  • Drawing 0.00A at 5V (No current draw)

Solution

PP3V3_G3H is most likely shorted to ground with a 0–1 Ω short, most likely due to bad capacitor. When PP3V3_G3H is directly shorted to ground, it won't produce heat—the PP3V3_G3H power IC is smart enough, usually, when it detects a straight 0 Ω short, to just turn off.

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