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.

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…

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.

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

Pinout and soldering reference for the square Lenovo charging connector, the rectangular slim-tip DC jack used on many Lenovo laptops.

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

Small 124 KB PDF schematic covering the audio and USB daughterboard used with Sony mainboard MBX-165, platform code MS90.

Material for the Dell Mini 10 based on Compal mainboard LA-4761P, revision 1.0, dated 13 January 2009, compressed into a 695 KB RAR.

eMMC dump for the Xiaomi Mi Note 3, codename jason, intended for dead-boot repair, in a 144 MB ZIP.

Datasheet PDF for the 2SC3254, 103 KB, filed among schematics. The Japanese JIS designation 2SC marks an NPN transistor, and the name contains nothing beyond the number.

PDF documentation for the 2SC3267, 225 KB, filed in the schematic category. Under the Japanese JIS system 2SC identifies an NPN transistor, and the name offers nothing…

Datasheet-style PDF for the 2SD1827, size 135 KB, filed under the schematic category. The part number follows the Japanese JIS system, where 2SD identifies an NPN…

Compact 42.0 KB PDF for the 2SD1135, catalogued under schematics but evidently a datasheet for that single transistor.

Reference sheet for the 2SC3292, provided as a 33.1 KB PDF and filed with schematics. The 2SC code means an NPN transistor according to the Japanese JIS standard; no…

For the 2SK1609 transistor, this 36.6 KB PDF supplies the component data. Under Japanese JIS/JEITA conventions 2SK identifies an N-channel FET; the name carries no…

Filed as a schematic, this 242 KB PDF is named after the 2SC3303 and almost certainly contains the datasheet for that NPN transistor, the 2SC prefix being the Japanese…

Datasheet for the 2SD1427 NPN bipolar transistor, a compact 66 KB PDF from the Japanese 2SD numbering family.

The 2SK1606 N-channel field-effect transistor is described in this 36.7 KB PDF, the 2SK prefix following Japanese JIS/JEITA registration.

Short 36.2 KB PDF covering the 2SK1605 transistor. The 2SK code identifies an N-channel FET under Japanese part numbering; beyond that the name says nothing about maker…

A 120 KB PDF for the 2SK1578, an N-channel FET according to its Japanese 2SK designation.

PDF, 502 KB, identified by the transistor number 2SC2668 and placed in the schematic category, though it is presumably a datasheet.

Specification sheet, 85.3 KB in PDF form, for the 2SD1958 NPN transistor, indexed in the schematic section.

Reference PDF, 170 KB, for the 2SD1525 transistor, listed under schematics. Japanese JIS designation 2SD identifies an NPN bipolar device meant for low-frequency work.

Specifications for the 2SK1611 in a 36.3 KB PDF document. Japanese 2SK numbering places this part among N-channel FETs, and the name offers no further detail such as…

PDF reference of 286 KB for the 2SJ105, listed in the schematic section. Japanese JIS semiconductor codes beginning with 2SJ denote P-channel FETs, pointing to a…

Covering the 2SC4523, this 90.3 KB PDF is a semiconductor data sheet rather than a board schematic, despite its catalogue category.

Part datasheet for the 2SC4484, a 134 KB PDF. Japanese JIS numbering uses 2SC for NPN bipolar transistors, which identifies the device class here; nothing else is given…

A 238 KB PDF identified solely as 2SC5106, placed among schematics but in all likelihood the datasheet for that part.