MacBook Pro A1990 "Braindead" repair and MacBook Pro A1990 Not turning on, drawing 0.11A at 20V repair: Difference between pages
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(Created page with "{{stub}} {{Repair Guide |Device= |Affects parts= |Needs equipment= |Type= |Difficulty= }} ==Problem description== A1990 MacBook not turning on and only drawing 0.11A at 20V thumb|Example image (Figure 1) -- No image yet. Help expand this page by uploading it! ==Symptoms== *MacBook not turning on *current draw of 0.11A at 20V as shown by USB-C meter ==Solution== PP2V5_NAND_SSD0 can be shorted (in this case, PPBUS_G3H luckily didn't go to S...") |
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{{Repair Guide | {{Repair Guide | ||
|Device= | |Device= | ||
|Affects parts= | |Affects parts= | ||
|Needs equipment= | |Needs equipment= | ||
|Type= | |Type= | ||
|Difficulty= | |Difficulty= | ||
}} | }} | ||
==Problem description== | ==Problem description== | ||
A1990 MacBook not turning on and only drawing 0.11A at 20V | |||
[[File:Placeholder image.jpg|thumb|Example image (Figure 1) -- No image yet. Help expand this page by uploading it!]] | [[File:Placeholder image.jpg|thumb|Example image (Figure 1) -- No image yet. Help expand this page by uploading it!]] | ||
==Symptoms== | ==Symptoms== | ||
*MacBook | *MacBook not turning on | ||
*current draw of 0.11A at 20V as shown by USB-C meter | |||
==Solution== | ==Solution== | ||
PP2V5_NAND_SSD0 can be shorted (in this case, PPBUS_G3H luckily didn't go to SSD) | |||
I replaced SSD buck converter but the short was still there, found a shorted cap on the other side of the board C9088 which relieved the short on PP2V5_NAND_SSD0 | |||
Revision as of 16:29, 11 October 2023
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MacBook Pro A1990 Not turning on, drawing 0.11A at 20V repair | |
---|---|
Device | |
Affects part(s) | |
Needs equipment | |
Difficulty | |
Type |
Problem description
A1990 MacBook not turning on and only drawing 0.11A at 20V
Symptoms
- MacBook not turning on
- current draw of 0.11A at 20V as shown by USB-C meter
Solution
PP2V5_NAND_SSD0 can be shorted (in this case, PPBUS_G3H luckily didn't go to SSD)
I replaced SSD buck converter but the short was still there, found a shorted cap on the other side of the board C9088 which relieved the short on PP2V5_NAND_SSD0