Schematic in PDF form for the Dell Latitude 5520, project SOUTHPEAK15 on the TGL (Tiger Lake) platform, board number 19819-1, delivered in an 8.14 MB RAR.

Schematic for the Lenovo G50 series, covering the 80G4 and G70 models with ACLU1 and ACLU2 board codes, LCFC number NM-A271 at revision 1.0, dated 2013-12-17.

Schematic in PDF form for a Dell laptop board made by Wistron, code name Cedar, board number 13269-1, with FX3MC also given in the name; size 4.62 MB.

Schematic diagram in PDF form for the Lenovo B560 and Z580 notebooks, board number 10203-1, with the name also carrying an LA56 MB tag.

Datasheet covering the 2SC4487 transistor, stored as a 155 KB PDF and filed as a schematic in the index.

PDF datasheet of 96.7 KB for the 2SC4482, an NPN bipolar transistor according to Japanese JIS designation.

Datasheet for the 2SA1737, a PNP bipolar transistor per the JIS 2SA prefix, supplied as a 40.2 KB PDF and catalogued in the schematic section.

The 2N6768 PDF, 145 KB, appears in the schematic index but its title is purely a JEDEC discrete component code. It gives no model, brand or board number.

Schematic for a Compal laptop mainboard carrying project code GH47H and board number LA-K811P, revision 1A, in PDF form inside a RAR archive.

Schematic in PDF form for the Samsung N920C, a Galaxy Note5 handset, at 16.4 MB. The name gives only the model, with no board revision.

Document for the 2SK2493 field-effect transistor in PDF form, 384 KB, listed under schematics in the catalogue.

The 2SC3901 transistor is documented in this 88.3 KB PDF. Following the JIS convention, the 2SC prefix denotes an NPN bipolar device, so the file is most plausibly its…

An 87.4 KB PDF describing the 2SA1839 transistor, indexed with the schematic files. Following JIS numbering, the 2SA designation indicates a PNP bipolar transistor.

PDF reference for the 2SK1332 N-channel transistor, 103 KB, catalogued with schematics though it describes a single semiconductor rather than a circuit board.

Part code 2SC3422 is the only clue in this 176 KB PDF filed as a schematic. The 2SC series in the Japanese JIS system covers NPN bipolar transistors, making a component…

The 2SB1344 transistor is the subject of this 38.9 KB PDF, which the index lists under schematics.

Compact 42.7 KB PDF covering the 2SB1183 transistor. The JIS-style 2SB prefix identifies a PNP device designed mainly for low-frequency circuits, commonly found in power…

The 2SA1435 is the subject of this 29.8 KB PDF, and the file name gives nothing beyond the part number.

PDF datasheet, 178 KB, for the 2SA1804 transistor. In Japanese JIS numbering a 2SA part is a PNP bipolar transistor, and this document should provide its voltage…

The code 80EBU04 on this 147 KB PDF matches International Rectifier style naming for a rectifier diode, so although it sits in the schematic category, a component…

Component placement drawing for the Apex AX 20 amplifier board, a 61 KB PDF. It shows where each resistor, capacitor, transistor and connector sits on the PCB, which…

Tone control circuit intended for a 2.1 channel audio system, in a 159 KB PDF. It shows the bass and treble adjustment network that sits between the source or preamp and…

Schematic for MSI motherboard MS-16811 at revision 0B, provided as a PDF inside an 826 KB RAR archive.

Service schematic for the Samsung Galaxy A50, model SM-A505F, supplied as a 7.32 MB PDF.

PDF schematic for the HP EliteBook 6930p UMA version, with integrated graphics only, on Wistron board 07208-2 with PCB number 48.4V901.021.

Schematic in PDF form for the Faroe DIS X32 MB MV motherboard, board numbers 18742-1 and 18741-1, with 0GG02 also listed in the name.

Lenovo ThinkPad X1 circuit schematic in PDF form for motherboard NM-B141, with the project code YD1KL-3 and document version 3.08 noted in the name.

PDF schematic for the ASUS K53U notebook, based on Compal motherboard LA-7322P at revision 1.0, roughly 1.47 MB in size.

Datasheet PDF of 45.2 KB for the 2SK3280, categorised here as a schematic. The 2SK prefix indicates an N-channel field-effect transistor according to JEITA naming.

Reference PDF, 110 KB, for the 2SJ383 transistor, catalogued under schematics but by name a datasheet.

At 383 KB, this PDF documents the 2SJ360, indexed as a schematic but by name a transistor datasheet.

PDF of 245 KB titled 2SJ200, which by Japanese JIS convention is a P-channel field-effect transistor; the contents are probably the datasheet rather than a circuit…

PDF of 56.2 KB named 2SD1391, a JIS designation for an NPN low-frequency bipolar transistor, and presumably its datasheet although indexed under schematics.

Reference sheet for the 2SC4539, an NPN bipolar transistor by its JIS-style 2SC designation, stored as a 158 KB PDF that any standard PDF reader opens.

Reference sheet for transistor 2SC4474, supplied as a 109 KB PDF and listed among schematics.

The 2SA1621 is covered by this 194 KB PDF, listed among schematics but really describing one discrete semiconductor.

PDF documentation, 195 KB, for the 2SB907. Japanese JIS numbering assigns the 2SB prefix to PNP transistors meant for low-frequency applications.

Schematic-category PDF, 155 KB, carrying the code 301CNQ and no other identifying details such as model, maker or board revision.

Schematic in PDF named only Shiba, a project code name with no brand, board number or revision in the file name.

MSI MS-7392 circuit schematic, revision 1.1, provided as a PDF inside RAR. The diagrams cover the power supply sections, chipset, memory and peripheral interfaces, so…