Catalogued as a schematic, this 232 KB PDF carries only the code 40CTQ045, which reads like a discrete semiconductor part number rather than a laptop board number.

PDF of 59.1 KB labelled only 30BF and listed as a schematic, with no model, brand or board number provided.

Alternative 135 KB PDF for the 25C02 code, its name differing from the other 25C02 sheet only by a trailing underscore.

The 24WC257 is a Catalyst Semiconductor I2C serial EEPROM, and this 55.6 KB PDF, though catalogued as a schematic, is almost certainly its datasheet.

A 127 KB PDF filed under schematics and named 20ETF08S. It gives no device model, board number or revision.

The file 16YQ045C is a 52.0 KB PDF filed under schematics, but the name describes a component code and gives no device, board number or revision.

Schematic for the Compal LA-5752P laptop mainboard, an 837 KB PDF. Only the board number is given, with no model, brand or revision.

Schematic set for a board identified as AB540, delivered as a 1.47 MB ZIP archive that, per the name, contains a PDF.

Generic schematic PDF of 953 KB whose name gives no model, brand or board number, so the device it covers can only be identified by opening it and reading the title…

Circuit diagram for the Quanta ZH1 board project, a 852 KB PDF with no revision indicated.

PDF schematic for the Gigabyte GA-H61M-USB3-B3 motherboard, revision 2.0, as shown by the R20 suffix.

Short PDF of 101 KB about Ohm's law, in Portuguese and associated with BettineCell by its name, rather than a schematic of any specific device.

Schematic PDF for a Sony VAIO mainboard identified as M720 with Sony board code MBX-182.

Component location map in English, supplied as a PDF, for the Apple logic board 820-02020 found in the A2338.

Schematic for the Bangho B512XQ laptop, supplied as a PDF inside a 4.26 MB RAR archive.

Peavey transistor cross-reference sheet in a compact 96.6 KB PDF. Peavey amplifiers often use in-house part numbers on semiconductors, and a cross list like this maps…

Schematic in PDF format for a bridged-tied-load subwoofer amplifier labelled 2050, where BTL means two amplifier halves drive the speaker in bridge mode for higher…

Schematic PDF of 50.8 KB with a generic messaging-app style name that gives a date-like code but no model, brand or board detail.

PDF schematic labelled z61ae, around 1.3 MB. The name does not reveal the laptop brand, model or revision, so read the title block to confirm what board it covers and…

Schematic PDF for the HP G42 laptop, Intel version on Quanta board DAAX1JMB8C0, in a compact RAR under 1 MB. Quanta's DA...MB...0 code identifies the AX1J project.

Schematic titled only LF14M, with no brand, board number or revision in the name. This 1.57 MB PDF needs checking against its title block to confirm which device it…

Schematic for the MIO-KB daughterboard of the Lenovo 330S series, a small PDF inside a 218 KB RAR.

Issue 17 of El mundo de la electronica, a Spanish electronics course or magazine series supplied as a 1.31 MB PDF.

Schematic covering the HP G4, G6 and G7 notebooks on the AMD platform, a 900 KB PDF that names no ODM, board number or revision.

Disassembly and reassembly guide in PDF form, 1.11 MB, with no device or brand named in the file name.

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

Logic block diagram for the Xiaomi Redmi 3A, with a Chinese title, supplied as a 738 KB PDF.

Early R0.5 schematic for the Compal LA-1251 motherboard, compressed into a 1.44 MB RAR archive.

Schematic in PDF for motherboard 6050A2514101, revision A02, a number that follows the Inventec numbering pattern often seen on HP notebooks.

Lenovo G560 schematic for Compal board LA-5752P, offered as a 1.64 MB PDF; the size differs from other copies of this board, so it may be a different revision or scan.

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…

Schematic for the F83VF laptop in PDF format, 1004 KB, with no revision stated in the name; it has the same size as another F83VF copy marked r11, so it may be the same…

Quanta FM9B schematic, D3A revision, for a UMA build, meaning integrated graphics with no discrete GPU.

Small 67.8 KB PDF for the 2SD1854, a part number in the Japanese 2SD series of NPN bipolar transistors, so it is really a datasheet rather than a full schematic.

A 41 KB PDF covering the part coded 5HN02SP, listed with schematics but naming only a component. SP is most likely the package designation in the 5HN02 series.

Small 56.9 KB PDF for the 2SD1679, with an extra E suffix in the name that is not explained further.

Reference PDF for the 3N255, sized at 42.2 KB and catalogued among schematics, though nothing beyond the part number is given in the name.

A 318 KB PDF covering the 2SK2882, listed under schematics but almost certainly a datasheet given the bare part number in its name.

Listed as a schematic, this 412 KB PDF carries only the part number 2SK2845 in its name.