Circuit diagram for the MS-7392 motherboard, marked V21, which most likely means version 2.1, provided as a PDF of about 1.23 MB.

Lenovo A668T circuit schematics in a RAR archive of around 619 KB. The name names only the model, leaving board revision and chipset unstated, so check that the drawings…

Laptop schematic in PDF format labelled SP6 and ENVY13, pointing to an HP Envy 13 notebook with SP6 as the board or project code; no brand field or revision is supplied.

A 948 KB PDF guide on disabling the protection circuit of LCD backlight inverters, part three of a series, covering boards built around the OZ9966SN inverter controller.

Circuit schematic for the Xiaomi Mi 5 smartphone, the Chinese file name reading Xiaomi 5 circuit schematic, in an 857 KB PDF.

Circuit schematic for the Apple iPad Air logic board, a PDF of about 2.39 MB. It documents power distribution, the power-up sequence, interface lines and component…

Circuit diagram for the Samsung NP-R50 notebook in PDF format, about 1.52 MB. The name shows only the model and no board number, so confirm the BA41 code printed on the…

Schematic documentation for the Nokia N78, provided as a 679 KB PDF. The drawings help a repair technician trace the battery and charging lines, power management…

Schematic diagram for the Samsung SGH-E700 mobile phone, a compact 294 KB PDF. The small size suggests a limited set of circuit sheets rather than a full service manual.

Schematic in PDF form for the ASUS N56VM, with an RG suffix in the name that likely denotes a board variant but is not explained, about 2.29 MB.

Bottom-side PDF for Wistron-numbered board 15250-1, roughly 263 KB, the counterpart of the top-side sheet.

Schematic in PDF form for the FX505GM laptop board, revision 1.0, labelled as a Pegatron design and packed in a 7.29 MB RAR.

Schematic diagram in PDF form for the MSI MS-7A71 motherboard, revision 1.2, packed inside a 10.5 MB RAR archive.

Schematic PDF for the Sony KDL-46EX717 LED television, 5.89 MB in size; the name does not state which boards or chassis revision are covered.

Schematic PDF for the MSI 990XA-GD55 motherboard, MS-7640 version 11, revision 1.4, packed in a ZIP archive.

Lenovo A789 schematic diagram and service manual, supplied as a 592 KB RAR archive with an uppercase extension.

Xiaomi Mi 4C schematic diagram paired with its service manual in a fairly large 53.8 MB ZIP package.

Schematic for the Dell Latitude E5550, Compal project ZAM80, board LA-A911P revision 1.0, packed in a 2.02 MB RAR.

Schematic PDF for the IBM ThinkPad T61 laptop; the file name gives no board number or revision, so verify the planar variant against the drawing title blocks.

This PDF of about 124 KB covers the 2SD2114 transistor with a KS suffix; the suffix is not explained by the name and may denote a gain class or package variant.

The name offers nothing beyond the 2SD2500 part number, and the 250 KB PDF is almost certainly that transistor's datasheet.

For the 2SK3411 transistor, this 32.0 KB PDF provides the component reference, even though the index files it as a schematic.

The 2SK3291 transistor is the subject of this 34.2 KB PDF, filed as a schematic although it works as a datasheet.

The name of this 421 KB PDF carries just one token, 2SK2836, a JIS-format number for an N-channel FET.

Part reference for the 2SK2782, delivered as a 419 KB PDF under the schematic label. The 2SK prefix follows Japanese JIS numbering for N-channel field-effect…

Reference PDF for the 2SK2714 transistor, 144 KB, filed in the schematic section. JIS naming uses 2SK for N-channel field-effect transistors, so the contents should be a…

PDF reference, 115 KB, for the 2SK1924 N-channel field-effect transistor; the 2SK prefix places it in the Japanese JIS transistor registry.

Reference document for the 2SK1436 transistor, supplied as a 105 KB PDF and listed under schematics.

The 2SJ377 is covered by this 415 KB PDF, a component datasheet filed in the schematic category.

Part documentation for the 2SJ337 in a 98.2 KB PDF. The file name names only this semiconductor, nothing about a device.

A 247 KB PDF titled only with the part number 2SC4667, catalogued here as a schematic. The 2SC prefix is the JIS code for an NPN transistor intended for high-frequency…

Component document for the 2SC5201 part number, catalogued as a schematic but almost certainly a semiconductor datasheet given the name and small 115 KB PDF size.

Reference PDF for the 2SC4224, at 97.3 KB, catalogued as a schematic although the name is just a semiconductor part number.

Named 2SC5569 and weighing 50.3 KB, this PDF sits in the schematic category but refers only to a transistor part number.

The 2SC3916 NPN transistor is the subject of this 30.8 KB PDF. Since the name is only a JIS part number, where 2SC stands for an NPN bipolar device, it is best treated…

Specification PDF, 30.2 KB, for the 2SC3913 transistor. JIS part numbering assigns the 2SC prefix to NPN bipolar devices, so the document is most likely a datasheet…

Listed under schematics, this 93.2 KB PDF documents the 2SC3685, an NPN bipolar transistor by JIS designation.

Specification document for the 2SC3515 transistor, a 225 KB PDF placed in the schematic category.

Data sheet style PDF, 103 KB, for the 2SC3149 NPN bipolar transistor named under the JIS 2SC scheme.

Datasheet PDF of 248 KB for the 2SC3138, an NPN bipolar transistor going by its Japanese JIS 2SC prefix.