A 175 KB PDF catalogued as a schematic and titled 30EPH06, which looks like a discrete semiconductor part number, likely a rectifier, not a board identifier.

Filed as a schematic, this 161 KB PDF titled 27lc010 is almost certainly a component datasheet rather than a board diagram.

NXP document UM10391, a user manual in PDF form catalogued here as a schematic reference.

Spanish-language colour reference on LEDs for TV backlights, edition dated June 2019, 2.01 MB PDF, part 06 of a series.

Part-number PDF for the 2SK1471, 92.5 KB in size and labelled as a schematic in the index.

Part number 2SC3401 is the only information in the name of this 87.3 KB PDF, so no device or board is identified.

Indexed as a schematic, this 40.2 KB PDF is named 2SB1220 with an _E suffix and almost certainly contains the datasheet for that JIS transistor.

This PDF of 178 KB sits in the schematic category and bears the number 2N6436 plus an RE suffix not explained by the name.

Named 1SV262 with a trailing underscore, this 74.5 KB PDF is filed as a schematic. The underscore adds no technical information.

Covering the 1SS394, this 66.2 KB PDF is filed as a schematic but most likely holds a component datasheet, since 1SS denotes Japanese-registered small-signal silicon…

A 69.5 KB PDF titled with the component number 1SS367, with nothing in the name about a device or board.

PDF of 112 KB catalogued as a schematic, named 62v256 with no device, brand or PCB revision stated.

HP DM1 schematic for the DM1-4175nr model, produced by Quanta with board number DAONM9MB6DO.

An 88.8 KB PDF describing the 2SD1806, filed in the schematic index although it is most likely a part datasheet.

A 169 KB PDF for the 2SD1803, placed in the schematic category but evidently a component reference sheet. No manufacturer, revision or variant is named.

Datasheet-type PDF of roughly 41.9 KB for the 5LN02SP, placed in the schematic category.

Small 21 KB PDF covering the 4N39 optocoupler, catalogued as a schematic. The name states only the part number, so the content is most likely a brief datasheet with…

Datasheet-type PDF of 419 KB named after the 2SK2314. The 2SK prefix in the Japanese JIS designation identifies an N-channel field-effect transistor, so this…

Filed as a schematic, this 412 KB document named 2SK2229 most likely contains the datasheet for that Japanese-numbered N-channel FET.

Part datasheet for the 2SK2033, provided as a 296 KB PDF and filed under the schematic category. The 2SK prefix follows the JIS standard for N-channel FETs.

Datasheet-type PDF for the 2SK1737, sized 90.0 KB and categorised as a schematic. The 2SK prefix comes from the Japanese JIS naming scheme for N-channel field-effect…

Reference sheet for the 2SJ345 in PDF format, about 333 KB. The name gives only the part number, with no board or device information.

PDF for the 2SJ306, about 94.4 KB. The name contains just the transistor type, so no device, board or revision can be stated.

UTC datasheet covering the 2SD882L, a variant of the widely used 2SD882 NPN transistor, stored as a small PDF of about 24 KB.

Specification sheet for the 2SD874 transistor in PDF form, about 44 KB, catalogued with the schematics but actually a component datasheet.

At 464 KB, this PDF for the 2SC5264 is the largest of the related transistor files and is likely a full datasheet with characteristic curves.

Datasheet-type PDF of 220 KB for the 2SC5260, carried in the schematic section of the index.

Part number 2SC4223 is all the file name gives, so this 93.9 KB PDF is best treated as a datasheet for that component rather than a circuit schematic.

At 108 KB, this PDF is labelled with the transistor type 2SC4221 and nothing else, so no board, model or revision is identified.

Filed in the schematic section, this 156 KB PDF is named for the 2SC4135, which by JIS convention is an NPN bipolar transistor, so expect a component datasheet inside.

Covering the transistor 2SC4104, this compact 19.1 KB PDF is tagged as a schematic, but the 2SC prefix in Japanese JIS numbering identifies an NPN bipolar device, so…

PDF for the 2SC4061K, 61.7 KB, filed under schematics though the name reads as a component datasheet.

Datasheet-type PDF, 58.1 KB, bearing the part number 2SC4027 and stored under schematics. Under the Japanese JIS scheme the 2SC prefix means an NPN bipolar transistor.

Filed under schematics, this 466 KB PDF is identified by the code 2SC4839 alone. In the Japanese JIS designation system the 2SC prefix belongs to NPN bipolar…

Only the type number 2SC4836 appears in the name of this 110 KB PDF, indexed as a schematic.

Specifications for the 2SC3656 in PDF form, 90.4 KB. Parts beginning with 2SC in the JIS system are NPN bipolar transistors.

Data for the 2SC3122 transistor in a 268 KB PDF, listed under the schematic type. Following JIS numbering, the 2SC prefix marks an NPN bipolar device, and the case often…

Part number 2SC2882 names this 137 KB PDF, which the index treats as a schematic. The 2SC prefix in the JIS system indicates an NPN bipolar transistor, making a…

The 2SB1674 named here is, under JIS conventions, a PNP bipolar transistor; this 52.6 KB PDF, despite its schematic category, is therefore most likely the datasheet.

Datasheet in PDF format for the 2SB1641, around 183 KB. By JIS convention the 2SB prefix identifies a PNP bipolar transistor aimed at low-frequency circuits such as…