Apple 27" Thunderbolt A1407 820-2997 Display Logic Board Schematic
J59
J59
-
Hi there. I am currently trying to figure out if I am undergoing the sunk cost fallacy.
I’ve bought a very cheap MacBook Pro 14 A2442 off eBay. I did some checking and the symptoms were pointing towards a NAND failure.
After some consideration I got an original logic board from Apple as an replacement. However after installing I have no backlight.
I can see the Apple logo if I point a flashlight at it but the MacBook seems to be going to recovery mode.
anybody have an idea of what’s up here? Is the board dead on arrival or is my screen... -
Hi there,
I'm looking for anyone who might have information on Apple's embedded Apple Watch charging daughterboard, ID 820-02601. This is currently used by Anker in their Apple Watch charging products, but likely by other Apple partner brands as well.
You can see the board referenced in ChargerLab's teardown of the Anker Y1811 3-in-1 MagSafe cube - they discuss the "Apple Watch wireless charging circuit" about 2/3rds down the page. It's not pictured, but the board ID reads 820-02601-A, which sure sounds like Apple.
This daughterboard uses an interesting...04-21-2025, 11:41 PM -
Hi all! So happy to have found this community.
I'm looking for a schematic or a board view of the logic board used by the "Late 2005" Apple Power Mac G5 Quad-core or Dual-core.
Apple uses identifiers 820-1628, 820-1628-A, and 661-3726 for this part.
Since the schematics seem very hard to find, I'm specifically interested in Apple's "U4 (Kodiak)" implementation of the IBM CPC945 northbridge, and particularly how Apple wired the memory controller pins.
There's tons of misinformation about this chip online, and I'd be...01-21-2022, 07:07 PM -
Hi friends, working on a MacBook Air A2179 logic board 820-01958-A logic board. It's just stuck on 5V .19amp on one USB-port & then when I use to the other port it's also stuck on 5V .19amp but on this port it resets after few secs & start over with the same said voltage. I assumed that one of the CD3217B12s is defective, & replaced both with known good ICs. The status & result remains the same. I checked for shorts or liquid spill, all clear. On F8400 there is 12v present, but no 5V or 3.3 volts. There are LDO voltages on the both CDs 3.2v & 1.5V. Kindly if someone can help... -
Apple MacBook Pro 13" A1706 Logic Board 820-00923 Schematic & Board View...
Comment