Documentation for the Apple 820-2299 audio board, a separate small board for the audio circuit, packed into a 140 KB RAR.

Archive for the Apple audio board 820-2136, a 137 KB RAR file covering the daughterboard that handles audio connections.

Handsfree (headset) section of the Samsung SM-A20S schematic, a 2.07 MB PDF. It shows the headphone jack connections, detection line, audio left and right outputs and…

Partial Quanta schematic covering only the audio connector circuitry shared by the ZR1 and ZR2 board projects, a small 79.5 KB PDF.

Large firmware archive for car audio units, around 1.89 GB, with no brand, model or board number given in the name.

Headset or hands-free section of the Samsung Galaxy A30s (SM-A30S) schematic, a 2.31 MB PDF, somewhat smaller than the other pages in the set.

Handsfree and headset audio schematic for the Samsung SM-A23, contained in a 2.78 MB PDF.

Headset jack schematic page for the Samsung SM-A10, provided as a 1.22 MB PDF. It shows the jack detect line, stereo audio outputs, the headset microphone return and the…

Samsung SM-A11 schematic section for the headset (handsfree) jack, provided as a 4.32 MB PDF.

Handsfree and headset audio section of the Samsung Galaxy A12 (SM-A12) schematic, 3.39 MB PDF.

Schematic section in PDF for the handsfree, meaning the headset or wired earphone jack circuit, from an unnamed sectioned set of roughly 4.77 MB pages.

Schematic section for the Samsung SM-A02S smartphone covering the handsfree audio circuit, supplied as a 1.79 MB PDF.

Handsfree circuit page from the Samsung SM-A05 schematic, a 2.85 MB PDF. It deals with the headset jack: detect line, left and right audio outputs, headset microphone…

Schematic file in PDF format, about 5.16 MB, titled BM62-64, which matches the naming of the Microchip BM62 and BM64 Bluetooth audio modules, likely a reference design…

Realtek ALC272 datasheet in PDF form, 1.28 MB. The ALC272 is a High Definition Audio codec found on many laptops, providing headphone, speaker and microphone interfaces.

Audio driver package intended for a Samsung Book laptop, as the Portuguese name, which translates to sound driver, indicates.

PDF schematic whose name is only the code CDX-G1152U. That code matches the style of a Sony car audio head unit model, but the name gives no further revision or board…

Large 106 MB archive with a Persian title meaning all Sierra car players, so it likely gathers firmware or dumps for Sierra brand car audio head units.

PDF schematic for the Samsung SM-G355H, 3.21 MB, with an extra HrM suffix in the name whose meaning is not certain and may denote a particular variant or document…

Small 186 KB PDF schematic for the earphone and charging daughterboard used in E14 and E15 machines. No vendor, generation or board number is given in the name.

LG archive of 9.14 MB with a Persian name meaning several models of car player, pointing to a collection of LG car audio firmware or memory dumps.

Schematic for Compal board LS-8483P at engineering revision R0.1, stored in a 21.8 KB RAR file. The name names no laptop.

Raspberry Pi 3 Model B schematics at version 1.2, supplied as a 74.9 KB PDF. These reduced public schematics typically show power input, regulation, USB, Ethernet, HDMI…

Sony service schematic in PDF form covering two car audio head units, the MEX-M71BT and the MEX-N5200BT, about 6.81 MB in size.