Bottom copper layout for the universal dos vas Matrix board, probably a dual voltage amplifier stage module, tagged langsung print for direct printing.

Compact 38 KB PDF datasheet for the 2SD2142K, an NPN transistor named in the Japanese JIS scheme, where the trailing letter marks a specific package or variant.

This 91.1 KB PDF covers the 2SD1887 transistor; it sits in the schematic category but the file name matches a JIS component designation, pointing to a datasheet.

Named for the 2SK2824 transistor, this 305 KB PDF is indexed as a schematic but is most likely a single-part datasheet.

Specification sheet for the 2SD874 transistor in PDF form, about 44 KB, catalogued with the schematics but actually a component datasheet.

Datasheet for the 2SD814 NPN transistor, a 42 KB PDF whose _E suffix probably indicates an English edition.

Covering the 2SC3811, this 45.7 KB PDF has an _E suffix in its name, which is not explained and may denote an edition or English version.

A 102 KB PDF on the 2SC3752 transistor, an NPN device under the JIS 2SC scheme. The name contains nothing beyond the part number, so no board or model is identified; the…

A 468 KB PDF covering the 2SC3607 transistor, filed in the schematic category but best treated as a manufacturer datasheet.

For the 2SC3597 transistor, a 119 KB PDF filed as a schematic but containing component data.

Part number 2SC2882 names this 137 KB PDF, which the index treats as a schematic. The 2SC prefix in the JIS system indicates an NPN bipolar transistor, making a…

A 59.2 KB PDF describing the 2sb1275 transistor, filed as a schematic though the name points to a single part.

This 30.5 KB PDF is titled with the 2SA1526 part number and indexed as a schematic, though it is most likely the transistor's datasheet.

Troubleshooting guide for the Samsung Galaxy A7 2017, model SM-A720F, as a 1.57 MB PDF; the trailing 7 in the name may denote a chapter or revision but is not explained.

Troubleshooting guide in PDF for the Samsung SM-A105FN, the Galaxy A10 model code, contained in a 1.29 MB RAR archive.

A 178 KB schematic PDF titled only Radio, without any model, brand or board identifier in its name.

Datasheet for the 2SD2258 NPN bipolar transistor, supplied as a 56.8 KB PDF and filed under schematics.

PDF document of 41.0 KB for the 2SD2185 transistor, with an _E suffix in the file name that is not decoded here.

A 161 KB PDF carrying only the part number 2SC4650, a JIS-registered NPN transistor. Nothing in the name links it to a specific device, so treat it as a component…

A compact 93.8 KB PDF carrying only the designation 2SC4476 in its name. Under JIS numbering the 2SC prefix identifies an NPN transistor of the high-frequency class, so…

Datasheet-style PDF of 119 KB for the 2SC4401, listed in the index under schematics although the name points to a single semiconductor part.

For the 2SC5534 transistor, this 44.8 KB PDF sits in the schematic category but, going by the JIS 2SC code for NPN bipolar devices, is the part datasheet.

Datasheet PDF, 81.8 KB, for the 2SC3997 transistor, placed in the schematic listing. JIS numbering uses 2SC for NPN bipolar transistors; nothing else, such as maker or…

Compact 30.5 KB PDF for the 2SC3923, named by part number alone and sorted into schematics.

Datasheet PDF of 172 KB carrying the part number 2SC5358, listed under schematics in the index.

Datasheet covering the 2SB1592 PNP transistor in a compact 38.9 KB PDF; the _E tag likely indicates the English version of the document.

Part reference for the 2SA1291 in PDF form, 40.8 KB. Filed as a schematic, but the name holds nothing other than a component code, and 2SA under the Japanese JIS scheme…

Copper pattern of the Apex Class A shunt board, viewed through the PCB from the component side, according to the Serbo-Croatian title.

Schematic of a 1000 W audio power amplifier rated into 2 ohms, marked R2, RLVA SE1, 2012 revision 1, in a 110 KB PDF.

A 111 KB PDF for the 2SD2281, which under the Japanese JIS system is an NPN transistor from the low-frequency 2SD series.

Part reference for the 2SK2862 in a 411 KB PDF, listed under schematics in this index. The name carries only the transistor number.

Smaller 137 KB PDF tied to the 2SK2606, a JIS-style designation where 2SK indicates an N-channel field-effect transistor.

The part number 2SK2327 is the only information in the name of this 32.8 KB PDF, filed as a schematic.

Datasheet-style PDF of 44.0 KB for the 2SC4391, filed as a schematic; the trailing _E suffix in the name is not explained and could denote an edition or language…

Specification document for the 2SC5549 transistor, a 205 KB PDF in the schematic category.

The 2SA1572 transistor is documented in this 49.4 KB PDF. No board or equipment model appears in the name, so treat it as a component datasheet.

PDF document of 47.8 KB listed as a schematic and named 2PC1815, issue 3 by the trailing number.

Schematic PDF for Lenovo board NM-A481, following the LCFC numbering pattern used by Lenovo's main laptop ODM.

Apple schematic in PDF form for logic board 820-3023, revision A judging by the trailing letter, about 1.29 MB.