MacBook Pro A1502 2015-2016 Not turning on (170 mA current draw) repair

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Revision as of 13:19, 8 November 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== *Not turning on *Only drawing 170 mA from the magsafe charge port ==Solution== All main rails present except for VCore. Thermal camera showed U8080 getting hot due to short to ground on the output (P...")
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MacBook Pro A1502 2015-2016 Not turning on (170 mA current draw) 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

  • Not turning on
  • Only drawing 170 mA from the magsafe charge port

Solution

All main rails present except for VCore. Thermal camera showed U8080 getting hot due to short to ground on the output (PP5V_S0_FET). C7740 (1uF 10V) was shorted on the PP5V_S0_BKLT line. Component was corroded due to an insect dying and decomposing on top of that cap. Board was mint otherwise.

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