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Laptop motherboard · Apple

Apple A1278 - J30 820-3115-B 051-9058 Schematic

This page has the schematic for Apple A1278 - J30 820-3115-B 051-9058, a laptop motherboard from Apple. Printed board number: 820-3115. 5 more files in the library share this board number — they're listed below.

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Brand
Apple
Device
Laptops
Model
A1278 J30
Board number
820-3115
Contents
Schematic
Available via
Telegram
Original file name
APPLE A1278 - J30 820-3115-B 051-9058 PDF.rar

Same board number 5

All files for 820-3115

More Apple A1278 files 15

Apple A1278 overview

Other Apple laptops

All Apple files
BoardviewSchematicMBP 820-2610Apple · 820-2610BoardviewSchematicMBP 820-2849Apple · 820-2849BoardviewSchematicMBP 820-2850Apple · 820-2850BoardviewSchematicMBP 820-2879Apple · 820-2879BoardviewSchematicLB# 820 2849 '' '' File & Schematic DiagramApple · 820-2849SchematicApple Macbook Pro 13 2020 A2251, 820-01949-AApple · 820-01949BoardviewSchematicMacbook Pro M1 A2338 820-02020Apple · 820-02020BoardviewSchematic820-00923-A 820-00923Apple · 820-00923

Questions about this file

Which board number is this Apple A1278 - J30 820-3115-B 051-9058 file for?
It's for board 820-3115. Compare it with the number printed on your PCB before relying on the file. Where to find it.
How do I use the schematic for diagnosis?
Start with the power-sequence and power-rail pages to find where a no-power or no-image fault begins, then locate the parts with a boardview. No-power troubleshooting plan.
Is the download free?
Yes. The button opens post #7384 in the public Telegram channel @schematicslaptop, where the file can be downloaded with a free Telegram account.

Guides for this file

Laptop won't turn on? A schematic-based troubleshooting plan6 min readHow to find your laptop motherboard number5 min readSchematic vs boardview: which one you need for repair3 min read