PDF document named after TAS5614LA, a Texas Instruments Class-D audio power amplifier IC used in audio equipment.

Datasheet PDF, 137 KB, for the 2SD1841, part of the Japanese 2SD range of NPN bipolar transistors, catalogued here under schematics.

PDF of 336 KB covering the 2SC732TM, an NPN bipolar transistor of the Japanese 2SC family; the TM suffix appears in the name but is not explained.

PDF document for the TDA7491P, a 1.45 MB file that is most likely the component datasheet rather than a board schematic, judging by the part-number name.

Schematic document in PDF format, about 1.80 MB, filed under the name TAS6534, which looks like a Texas Instruments part number from the TAS automotive class-D audio…

Schematic of a Class H audio power amplifier, described in Spanish as a Thai design, delivered as a small 718 KB PDF.

Infineon datasheet for the IRS20957SPBF, document version 1.02 in English, as a 457 KB PDF.

Compact 77.2 KB PDF covering the 2SB893 transistor. In JIS numbering the 2SB prefix identifies PNP transistors for low-frequency circuits, such as audio amplifiers and…

Circuit schematic for the classic Nokia 6210 handset, saved as a 779 KB PDF document. For older phones like this, diagrams are especially useful because replacement…

Documentation for the 2SB827 transistor in a 103 KB PDF, indexed among schematics. JIS part codes beginning with 2SB are assigned to PNP devices classed for…

Datasheet for the 2N3055, filed here under schematics as a 39.8 KB PDF. The 2N3055 is a classic NPN silicon power transistor, usually in a TO-3 metal can, found in…

Reference PDF covering the 2SB1530 transistor, filed under schematics but in practice a component datasheet identified only by its JIS part code.

Component datasheet for the 2SD1851 transistor, supplied as a 93.4 KB PDF and classed as a schematic in the index.

Nokia 6500 schematic in PDF format, 420 KB; the name does not specify whether it covers the 6500 classic or the 6500 slide, so check the board against the drawings…

PDF for the complementary TIP3055 NPN and TIP2955 PNP power transistors, 50.1 KB, indexed under schematics.

Small 44.1 KB PDF named after the 2SA1292, a PNP bipolar transistor according to the JIS 2SA designation.

Under the Japanese JIS scheme the 2SB726 is a PNP bipolar transistor, so this 39.6 KB PDF, though catalogued as a schematic, should be its datasheet; the _E suffix…

PDF schematic of roughly 943 KB labelled TAS6514AL, a name that matches the Texas Instruments TAS series of automotive class-D audio amplifier ICs; no product, board…

Simple preamplifier schematic built around the NE5532 dual low-noise op-amp, a 405 KB PDF; the extra tag in the name only marks the source site.

Shared schematics for the Nokia 6670 and Nokia 7610, combined in a single 1.46 MB-class PDF of 1.45 MB.

Nokia 3210 schematics in a 981 KB PDF, with no board revision mentioned in the name. This classic handset is still repaired by collectors and technicians, and the sheets…

Component data for the 2SB1527 in PDF form, roughly 73 KB, catalogued as a schematic though the bare part number suggests a datasheet.

PDF datasheet-style file for the 2SB1290 transistor, only 38.7 KB, so likely a brief sheet of a few pages. The name carries no other details such as package or maker.

Reference sheet for the 2SA1244 transistor in PDF form, 295 KB, listed as a schematic even though the name gives nothing beyond the part number and the file is most…

Nokia Asha 202 class handset schematics, listed as Nokia 202 type RM-834, service document version 1.0, in a 504 KB RAR archive.

Schematic set for the Nokia 5220 handset in a 4.82-class PDF of 4.62 MB. The name gives the model only, with no board version or revision.

First part of a Nokia 5110 schematic set, a 746 KB PDF marked number 1, meant to be used alongside the second part of the same series.

Nokia 5510 schematic diagrams in a 1.28 MB PDF, with no board revision noted in the file name.

Service schematic in PDF form for the Samsung SM-J250F, the Galaxy J2 Pro class handset, at 1.88 MB the larger of two copies circulating under the same model code.