Service schematic in PDF form for the Samsung E1282T, a basic feature phone, at 589 KB. The name gives only the model, so no board revision is stated.

Circuit schematics for the Nokia E62 smartphone, packaged as a 1.72 MB PDF. Nothing beyond the model is stated in the name, so revision and completeness should be…

Second schematic document for the Nokia N90, delivered as a 2.48 MB PDF; the number 2 in the name points to a further part or another edition of the N90 diagrams.

Nokia N71 schematic diagrams in PDF form, 2.01 MB. The N71 is a clamshell, so besides the main board power and baseband sections the drawings are handy for following…

Service schematic for the Nokia 6120 mobile phone, supplied as a 788 KB PDF. The name gives no board revision or issue number, so compare the diagram against the PCB…

Revision 0.4 circuit diagram for the LCFC NM-A281 motherboard used in Lenovo notebooks, a 1.58 MB PDF readable in any standard viewer.

Compact 654 KB schematic for the U450 notebook, Compal board number LA-5581P; the name states no revision or date.

PDF schematic titled Tin Yat 80A, which appears to be a project or platform code name rather than a retail model; the name gives no brand, board number or revision.

Lenovo B490 laptop schematic, 1.95 MB PDF. The name contains a long string beginning with LA that appears to be a Compal-style board code fused with other digits, but it…

Another schematic set for the Dell Latitude E6410, slightly smaller at about 1.10 MB in PDF.

Dell Latitude E5440 mainboard schematic, supplied as a PDF of roughly 3.17 MB. The name mentions a version without giving it, so the revision and board number must be…

K40IN schematic referencing G71G with version 1.0, in a 1.19 MB PDF; G71G appears to be the board or project code and 1.0 its revision, though the name does not spell…

Small 180 KB PDF schematic whose name carries the Quanta-style PCB code DAGD1ABB8B0, referring to the GD1 project, with what appears to be a CB sub-board and a 0711 date…

Circuit diagram of the Sony MBX-153 mainboard for the VAIO VGN-TX56C notebook, in PDF format of about 1.40 MB.

Compal LA-1044 motherboard schematic, revision 2.0, a compact 918 KB PDF that opens in any standard reader.

Circuit diagram for the Sony VAIO VPCEG36EG laptop, board MBX-250, using Sony's own MBX board numbering.

Main board design schematic for the Xiaomi E7, marked V3 and dated 170809 (likely August 9, 2017) in the name and labelled as the final version.

Toshiba schematic labelled only as M18, provided as a PDF of around 1.56 MB. The name gives no board number, revision or ODM, so open the title block to identify the…

Schematic PDF for the ASUS GX502LXS motherboard, revision 2.1, a fairly large 14.8 MB document.

Schematic PDF identified only by the codes H0225-3, 48.4KH17.031 and LDB1; the name does not state a laptop brand or model.

Reference PDF, 181 KB, for the KA2923, an IC from the KA prefix series; the name contains only the part number and does not state its function, so that must be read from…

Part documentation for the 2SD2615, filed under schematics but by its name a component datasheet rather than a board drawing.

A 43.6 KB PDF for the 3N247, filed among schematics but named after a discrete component, so it is most likely a datasheet.

Listed as a schematic, this PDF of 28.2 KB is named 3LP01M and carries nothing beyond that part-style code with an M suffix.

A compact 44.5 KB PDF labelled 2SJ520 and catalogued as a schematic. Because 2SJ is the JIS prefix for P-channel FETs, the document is best treated as a short datasheet…

Only the part number 2SJ275 appears in the name of this 97.0 KB PDF. That code follows Japanese JIS numbering, where 2SJ indicates a P-channel field-effect transistor…

PDF reference, around 129 KB, covering two power ICs identified by marking codes: Qq for the SY8386BRHC and 3a for the SY8388C3RHC.

Indexed as a schematic, this 79.2 KB PDF is named 2SC4400 and should be the reference datasheet for that NPN bipolar transistor.

The 2SC4121 part number is the whole name of this 89.5 KB PDF; although typed as a schematic, it should be the datasheet for that NPN bipolar transistor, as the Japanese…

A PDF document for the 2SC4884, filed under schematics but by its name a component datasheet rather than a board diagram.

The 2SC5777 is covered by this small 29.9 KB PDF, catalogued as a schematic but most likely a single-part datasheet.

PDF, 52.3 KB, documenting the 2SA1177, a PNP bipolar transistor in the JIS 2SA numbering scheme.

A 54.5 KB PDF filed as a schematic and identified only by the short code 51HQ, with no brand, model or revision stated.

Indexed as a schematic, 36mt is a 53.9 KB PDF whose name is only a short code that resembles a component series designation rather than a laptop board number.

Filed under schematics, 35clq045 is a 47.8 KB PDF whose name reads like a discrete part number; it does not state any device, manufacturer or revision.

PDF filed as a schematic, named 28LV65, a code in the family of low-voltage parallel EEPROM memories.

PDF reference, 274 KB, for the 24C164, a cascadable 16 Kbit two-wire serial EEPROM. The file sits in the schematic category but is essentially part documentation with…

Schematic document for the IBM ThinkPad X31 ultraportable, saved as a 1.08 MB PDF. The name offers no board number or revision, so compare the drawing's title block and…

PDF schematic for the IBM ThinkPad A30, roughly 986 KB in size. No board number or revision is given in the name, so confirm that the drawing matches the planar in your…

Schematic in PDF form labelled CADIZ-CP, which appears to be a board or project code name; no brand, model or revision is stated in the name.