PDF schematic of about 2.6 MB titled only Metro, which is probably a project code name; the name gives no brand, model or board number.

Scanned PDF of the September 2006 issue of AudioXpress, the audio electronics magazine, filed here under schematics.

Book in PDF form, about 7.88 MB, covering valve and transistor audio amplifiers; the tag in the name only reflects where the copy was sourced.

Schematic for a Z62H board in PDF format, about 800 KB. The name gives just the project code, with no brand, laptop model or revision listed, so verify the match against…

Schematic drawings for MSI motherboard MS-7301, archived as RAR at about 2.75 MB. The file name carries just the board number, without revision or chipset information.

Spanish electronics course PDF focused on tablets, about 2.73 MB, filed under schematics though it reads as training material.

PDF schematic for the ThinkPad T42 laptop, about 1.08 MB in size. No board revision or code name appears in the name, so check the system board label before matching…

Circuit diagram for the Lenovo ThinkPad SL410 in PDF format, about 1.32 MB. No board number or revision appears in the name, so verify the motherboard markings before…

Schematic document named V6J, about 2.13 MB in PDF format. The name supplies only this project code, with no brand, board number or revision, so the title block should…

Datasheet for part 5LP01SP in PDF form, about 28.1 KB, indexed as a schematic. The file name states only the part code; the LP letters appear to denote a P-channel…

Family datasheet spanning the 4N29 through 4N33 optocouplers, a 157 KB PDF listed in the schematic category.

PDF specification of about 78 KB for the 2SD1799 NPN transistor, named in the Japanese 2SD series and companion in numbering to the neighbouring 2SD1800 sheet.

PDF sheet of about 42 KB for the 3N259, catalogued under schematics though the file name is simply a JEDEC part number.

Named after part 2SK2218, this 213 KB PDF appears in the schematics section but is most likely the datasheet for an N-channel FET.

Reference PDF for the 2SK2151 N-channel field-effect transistor, about 96 KB and catalogued as a schematic, though a part-number name like this normally means a…

At 316 KB this 2SK2145 document is larger than most in the set, so it may hold extra characteristic curves or several package variants.

Datasheet PDF for the 2SK1771, about 305 KB in size. Under JIS conventions, the 2SK prefix identifies an N-channel FET; the file is listed as a schematic but the name…

The 2SK1747 is the subject of this 184 KB PDF. Japanese JIS designation 2SK means an N-channel field-effect transistor, so the file is probably the manufacturer…

Part datasheet in PDF form for the 2SK1727, about 86 KB. Its 2SK prefix marks an N-channel FET under the Japanese transistor naming system; manufacturer, package and…

PDF sheet for the 2SK1381 transistor, an N-channel FET in the Japanese 2SK series, about 443 KB in size, which suggests full characteristic graphs and mechanical data.

Named after the 2SJ190, this 93.3 KB PDF sits in the schematic category but, given the JIS 2SJ prefix for P-channel field-effect transistors, should contain the…

PDF of about 99 KB for the 2SC4770, filed under schematics though the name points to a transistor datasheet rather than a board diagram.

A 341 KB PDF named for the 2SC5612, filed under schematics while most likely being the full component datasheet. JIS numbering assigns 2SC to NPN bipolar transistors.

Datasheet for the 2SC4921 transistor in a compact 60.9 KB PDF. Under Japanese JIS numbering the 2SC prefix identifies an NPN bipolar transistor, while the name says…

A 96.0 KB PDF for the 2SC3687 transistor, placed in the schematic category of the index. According to the Japanese JIS system, the 2SC prefix means NPN bipolar.

Named simply 2SC3447, this 97.5 KB PDF appears under schematics but is most likely the transistor's datasheet.

A PDF of about 318 KB covering part 2SC3098, likely the datasheet for that device even though it is catalogued as a schematic.

PDF datasheet of about 227 KB covering the 2SA1015, a popular small-signal PNP bipolar transistor in the JIS 2SA family.

Part documentation for the 1SV331 in PDF format, about 71 KB and indexed as a schematic.

Datasheet-style PDF for the 1SV315, indexed as a schematic and about 31 KB. The 1SV designation is a Japanese JIS name for diodes, and Toshiba's 1SV parts are…

A 121 KB PDF carrying the code 95SQ015, catalogued as a schematic though the name resembles a Schottky diode part number, suggesting a datasheet.

At 616 KB, 1B31.pdf is the largest of the 1B-coded files and is listed as a schematic, yet its name says nothing about device, maker or board revision.

This 145 KB PDF, filed under schematics, carries the name 85epf08 and nothing about brand or board.

Filed as a schematic, the 79.0 KB PDF 60lq100 states nothing about a device, board maker or revision.

Catalogued as a schematic, the 39.3 KB file 30WQ05F carries what looks like a rectifier diode part number and is likely a short datasheet.

Datasheet-style PDF for the 10CTQ150, about 135 KB, listed in the index as a schematic.

Reference PDF for the 10BQ060 part, size about 85 KB, filed under schematics. Its name follows the numbering of a small surface-mount Schottky rectifier series, where…

Schematic for the Gigabyte GA-P55-USB3 motherboard, revision 2.0D according to the name, provided as PDF in a RAR archive of about 1.5 MB.

Schematic diagram for the Xiaomi Poco M3 smartphone, mainboard code J19S, packed in a RAR archive of about 3 MB.

Sony KDL-26S3000 LCD TV power section schematic in PDF format, about 221 KB. It shows the supply circuitry so a technician can follow the standby and main rails, measure…