820-3299 – Apple A1419
The Apple A1419 is built on the 820-3299 board. The catalog lists 2 files for it: 1 schematic and 1 boardview.
First posted in October 2023 in Schematics & Boardviews Archive and Cyberlan Electronics.
Schematics 1
Boardviews 1
Board facts
| Board number | 820-3299 |
|---|---|
| Numbering | Apple board number |
| First seen | 2023-10-01 |
| Source channels | Schematics & Boardviews Archive, Cyberlan Electronics |
| About the number | Apple logic boards are numbered 820-xxxx or 820-xxxxx; the trailing letter is the revision. |
Apple models for this logic board
| A-number | Model | Years |
|---|---|---|
| A1419 | iMac 27-inch | 2012–2019 |
A-numbers come from the file names; the model names and years are Apple's published identifiers.
Laptops that use 820-3299
What these files are for
A schematic is the circuit diagram of the main board: power rails, power-up sequence, component values and net names. It is the reference for measuring voltages and tracing a fault.
A boardview is the component placement map of the PCB: click a part or a net and the viewer highlights where it is and what it connects to. Used together with the schematic to find test points.
Tools to open these files
| Format | What it is | Open with |
|---|---|---|
| .brd | .brd boardview (Test_Link format) | OpenBoardView, FlexBV or BoardViewer |
| PDF schematic | any PDF reader; Sumatra PDF and Foxit handle large schematics well | |
| .rar | RAR archive | 7-Zip or WinRAR |
Questions
Which laptops use the 820-3299 board?
Files in the catalog link 820-3299 to the Apple A1419.
Is there a boardview for 820-3299?
Yes, 1 boardview file in .brd format.
Where do the download links go?
Each button opens the original public Telegram post the file was shared in. ChambersDesignInc.com only indexes and cross-references those posts.