Lenovo laptop schematic for the NM-A281 mainboard, an LCFC design, supplied as an 878 KB PDF whose name carries no revision.

Compal schematic for the Lenovo XR150, board LA-2201 with project code DCL55 at revision 3.0, in PDF format.

IBM ThinkPad T41 schematic, a 1.09 MB PDF with no board number or revision mentioned in its name.

Schematic for the IBM ThinkPad A31, a 1.00 MB PDF whose name gives only the model. No board number or revision is mentioned, so compare the PCB markings with the…

Schematic diagram set for the IBM ThinkPad X61 ultraportable, 1.42 MB in PDF format. The name contains only the model, so the board number and revision are not…

Circuit diagram for the Z94 board, revision 1.1, as a 902 KB PDF. No brand or full board number appears in the name, so the cover page should be consulted to confirm the…

PDF schematic labelled UL20A, a 1.32 MB circuit diagram for the notebook mainboard carrying that model designation; the name gives no board number, revision or brand.

Schematic for the ASUS Eee PC T91, with R12G in the file name most likely indicating a board revision, though that is not stated explicitly; the PDF is 597 KB.

Mainboard schematic tagged HK5 with the note mb-pvt-0202a, indicating a production validation test build and an internal date or version code; no brand or board number…

Schematic PDF for the Lenovo IdeaPad S10-3t netbook, with Caucasus named as the platform or project code. At 815 KB it should cover the main board circuitry.

Schematic for the ASUS K42JR laptop, revision 2.0, as a 2.69 MB PDF. No motherboard code is given, so confirm the revision printed on the PCB matches 2.0 before relying…

Short PDF document of 124 KB titled DMI process, catalogued as a schematic but more likely a procedure guide. No laptop brand or model is named.

Schematic diagram for the Apple iPhone 4S, supplied as a 1.34 MB PDF. It is useful for following signal paths and supply lines, locating the circuits behind faults such…

PDF schematic for the HP EliteBook 8540p and 8540w family as named, built on Compal board LA-4902P, revision 1.0.

Schematic for the Dell Latitude 5401, Compal board LA-H171P with the project code EDC42, a Coffee Lake-H platform with UMA graphics, board revision A00 dated 2019-03-20.

Schematic in PDF for the Gigabyte H410M H V3 desktop motherboard, revision 1.1. The drawings cover the circuits of this board, so a technician can follow CPU and memory…

Schematic PDF for the HP TX1000 notebook. The file name gives only the model, with no board number, ODM project code or revision, so confirm the motherboard markings…

Schematic PDF for the ASUS PU551JA laptop motherboard, revision 2.0, about 5 MB. The diagrams show power rails, the charger and PWM controllers, embedded controller…

Datasheet-style PDF for the BU2508DX, roughly 80 KB, indexed under schematics. This is a well known horizontal deflection transistor for CRT TVs and monitors, and the D…

Catalogued as a schematic, this 27.2 KB PDF carries only the code 3LP01SS, which looks like a component part number with a two-letter SS suffix.

Named 3LN02C, this 41.8 KB PDF is filed among schematics but its name is a component-type code with a C suffix and gives no device or board details.

The name 2SK1446LS marks this 32 KB PDF as covering an LS-suffixed version of the 2SK1446.

Small 31.3 KB PDF covering the 2SC5265LS, filed as a schematic. The 2SC prefix in the JIS system identifies an NPN bipolar transistor, and the LS suffix marks a variant…

At 192 KB this PDF is somewhat larger than its neighbours and covers the 2SC3142 transistor, an NPN bipolar part under JIS 2SC numbering.

PDF of 41.2 KB for the 2SC3130, with an extra E suffix in the name whose meaning is not stated; it may mark an edition, language or variant, so check inside.

Catalogued among schematics, this 54.5 KB PDF is named for the 2SB642, which the JIS 2SB prefix marks as a PNP transistor; the document is therefore expected to be a…

Data sheet sized PDF of 45.9 KB named 2PC4617J, revision 2 judging by the suffix. The J suffix normally separates a package or variant from the base 2PC4617 part, which…

Toshiba-style part number 1SV264 names this 65.3 KB PDF, which the index lists under schematics.

Filed as a schematic, this 65.8 KB PDF takes its name from the 1SV246 part number and carries no other details.

Part number 1SS181 gives this 70.1 KB PDF its name, and the index places it among schematics.

PDF datasheet of 64.7 KB covering Zener diodes from 1N4728A to 1N4754A, a subset of the 1 W axial Zener series.

Named 244NQ035, this 44.5 KB PDF is indexed under schematics but its title is a component part number from a family of power rectifiers, so treat it as a datasheet.

Catalogued as a schematic, the 1SR35-400A document is a 92.2 KB PDF with a discrete component style name and the 400A suffix denoting one grade.

The 80RIA name on this 191 KB PDF refers to a series of power semiconductors rather than a circuit board, and although it is filed as a schematic, a component datasheet…

The 163 KB PDF named 408CNQ060 sits in the schematic category, yet its name identifies no device or board.

Catalogued as a schematic, this 61.8 KB PDF is identified only by the code 70u, with no laptop model, board number or revision stated.

This 57.7 KB PDF, listed as a schematic, is named 64LC10-40, which reads like a range of variants within one component series.

Catalogued as a schematic, 33C704 is a 166 KB PDF whose name is just an alphanumeric code without any model, manufacturer or board revision.

A 176 KB PDF catalogued as a schematic, named 28LV64, a part number from the low-voltage 64 Kbit parallel EEPROM family.

PDF document of 202 KB named 25CTQ, a series-style code with no voltage suffix, so it probably covers a family of related components in datasheet form.