Component-style code 3LN02N is all the name of this 28.0 KB PDF provides; it is catalogued as a schematic but mentions no device, brand or motherboard number.

Component document in PDF for the 2SK2555, filed under schematics although the part number points to a discrete semiconductor rather than a board.

Reference PDF of 218 KB for the 2SC4754, indexed as a schematic but named after a single semiconductor part.

A small 51.5 KB PDF carrying the part number 2sc5147, catalogued as a schematic but almost certainly a component datasheet for that NPN transistor.

Reference sheet in PDF form, 29.3 KB, for the part numbered 2SC5689. Although listed as a schematic, a name made of only a JIS transistor code points to a manufacturer…

Here is a 42.1 KB PDF on the 2SC3707 transistor, listed in the schematic category. The trailing E after the part number is not explained in the name and should be read…

Datasheet-style PDF of 101 KB for the 2SA1731, indexed under schematics but named only by part number with no device or board information.

Datasheet-sized PDF, 46 KB, listed as a schematic for the part 2PA1774J, with the trailing 2 most likely a document revision.

Component sheet in PDF format, 47.7 KB, named for 2PC4081, probably revision 4 of the document.

This PDF of 71.0 KB is indexed as a schematic for the 2N6520, a JEDEC 2N-series discrete semiconductor number.

The 1SV266 is the only detail in this file name, and the 59.2 KB PDF is indexed as a schematic.

Covering the 6A05 to 6A10 series, this 198 KB PDF appears to be a datasheet for a family of 6 A rectifier diodes rather than a device schematic.

Filed as a schematic, this 531 KB PDF carries only the bare number 28040 in its name, with no manufacturer, device model or revision stated.

Here is a 570 KB PDF catalogued as a schematic whose name is simply 28010, without any brand or board identifier.

At only 53.7 KB, this PDF named 85hq is listed as a schematic and carries no brand or board information.

Only the code 35sgq060 is given for this 47.7 KB PDF, which is categorised as a schematic.

A 41.4 KB PDF named 35sgq045 and filed under schematics, though the name points to a component part code rather than a motherboard.

A 61.7 KB PDF named 34WC02, filed with schematics. The name resembles a component part number and gives no laptop model, brand or board revision.

Combined PDF covering the 24LC04B and 24LC08B serial EEPROMs, 4 Kbit and 8 Kbit devices sharing the same I2C interface and pinout style.

Catalogued as a schematic, this 314 KB PDF carries only the code 22GQ100 in its name, with no laptop brand, board number or revision stated.

Small 38 KB PDF named for the 10BF10 to 10BF80 range and indexed as a schematic. The name indicates a diode family covering several voltage grades in a single sheet, so…

Lenovo ThinkPad L412 motherboard schematic for board DA0GC9MB8D0, revision D, supplied as a 1.12 MB PDF. The DA0...MB...

Circuit diagram in PDF form for a mainboard coded Z84J, with no manufacturer or model given in the file name.

Schematic document for a Z62HA mainboard, delivered as a 1.15 MB PDF. The name carries no brand, platform or revision information, only the board code with its HA…

PDF schematic for the Sony MBX-163 laptop motherboard, with MS60 in the name, probably the ODM project code tied to this board; the file is 1.04 MB.

PDF schematic for the Lenovo ThinkPad X200 laptop, about 1.23 MB. The name gives no motherboard number or revision, so compare the board code on the opening pages with…

Schematic for the K56CM laptop board, supplied as a RAR containing a PDF. The RG token in the name is not explained and may refer to a specific board variant or build…

Samsung SM-F700F schematic set, delivered as a 2.06 MB ZIP, the model code belonging to the original Galaxy Z Flip. No board revision appears in the name.

Duplicate of the Spanish lesson on CDMA and FSK, numbered 5 and 474 KB in PDF format. It covers code division multiple access and frequency shift keying, two key…

Schematic archive for the J610F, most likely the Samsung Galaxy J6+ model code, though the brand is not stated in the name.

Schematic PDF for the HP EliteBook 840 G3, board 6050A2892401, revision MB-A01, about 1.25 MB.

Rear 5MP ultrawide camera schematic for the Samsung SM-A23, provided as a 2.79 MB PDF. The drawing covers the ultrawide module connector, its data and control lines and…

Samsung SM-A20S schematic section covering the Wi-Fi, Bluetooth and GPS circuitry, supplied as a 4.63 MB PDF.

Samsung SM-A20S schematic section dedicated to the LCD backlight, 4.62 MB PDF. It covers the backlight driver circuit, its boost coil, diode and capacitors, and the…

Samsung SM-A10 charging and data schematic, a 2.25 MB PDF. It covers the USB port, VBUS input protection, the charger circuit and the data lines to the processor.

PDF schematic page for the 2 MP depth rear camera of a handset, part of a sectioned series of roughly 4.77 MB pages; the device model is not named.

Schematic section for the Samsung SM-A02S smartphone covering the handsfree audio circuit, supplied as a 1.79 MB PDF.

Schematic PDF for Dell motherboard LA-7931P, a Compal-designed board identified by the LA-xxxxP code, at 1.29 MB. No revision or laptop model is given in the name.

Schematic in PDF form for a Sony laptop motherboard with the Quanta code DA0HK9MB6D0, revision 1A.

Schematic PDF for the Dell Latitude 5520, SOUTHPEAK15 project on Tiger Lake (TGL), board 19819-1, which follows the Wistron board-numbering scheme.