J17 MLB 051-9884 820-3478-A Schematic
This page has the schematic for J17 MLB 051-9884 820-3478-A, a laptop motherboard from Apple. Printed board number: 820-3478. 2 more files in the library share this board number — they're listed below.
Download via Telegram- Brand
- Apple
- Device
- Laptops
- Board number
- 820-3478
- Contents
- Schematic
- File size
- 3.1 MB
- Posted
- Available via
- Telegram @schematicslaptop
- Original file name
J17_MLB_051-9884_ 820-3478-A PDF .rar
Same board number 2
All files for 820-3478- A1419 820-3478-A BIOS 8MB BIOSApple820-3478BIOS
- J17PVT 820-3478-AApple820-3478Boardview
Other Apple laptops
All Apple filesBoardviewSchematicMacbook Pro M1 A2338 820-02020Apple · 820-02020BoardviewSchematic820-00923-A 820-00923Apple · 820-00923BIOS820-01700-A Orginal BIOSApple · 820-01700BoardviewMacBook Pro A2141 820-01700-AApple · 820-01700BIOSBIOS 820-2143-A Tested OKApple · 820-2143Schematic820-4924 A A1502Apple · 820-4924Boardview820-4924-AApple · 820-4924Schematic820-00928 MLB BAFFIN2Apple · 820-00928
Questions about this file
Which board number is this J17 MLB 051-9884 820-3478-A file for?
It's for board 820-3478. 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 #6919 in the public Telegram channel @schematicslaptop, where the file can be downloaded with a free Telegram account.