Service schematic for the Dell Inspiron 3521, built on the Compal VAW00 platform with motherboard LA-9104P.

Schematic document for the Huawei Honor 4x smartphone, provided as a 1.16 MB PDF; the name gives no board number or hardware revision.

Samsung SM-A910F disassembly document in PDF form, 1.51 MB. The name indicates step-by-step teardown instructions rather than circuit diagrams, covering removal of the…

Circuit diagrams for the Nokia N82 camera smartphone, stored as a 2.39 MB PDF. Only the model appears in the name, without board number or revision, so compare the label…

Service schematic for the Nokia N79 slider phone, supplied as a 6.39 MB PDF document. The pages are useful for following power distribution from the battery and power…

Nokia 6030 handset schematics stored as a 942 KB PDF. Beyond the model number the name gives no revision or board identification.

Schematic for an IBM-branded X201i, judging by the file name, supplied as a 1.62 MB PDF with no board number or revision given.

PDF schematic for the IBM ThinkPad R31, around 1022 KB. No board number, revision or hardware variant appears in the name, so identification rests on the model alone.

Schematic for the Sony PCG-GRS175 notebook, provided as a 645 KB PDF; the name carries no board number, ODM code or revision.

Acer Aspire 5220, 5220G, 5520 and 5520G schematic in a 744 KB PDF; the name gives no ODM, board number or revision, so open the title block to identify the mainboard it…

Acer Aspire 4520 series schematic from Quanta, project ZO3, board DA0ZO3MB6E0, revision 1A, in a 993 KB PDF.

Schematic for the Quanta AT5 laptop mainboard at revision R1A, supplied as a 1.22 MB PDF.

Schematic for the HP Evo 620 notebook, delivered as a 1.32 MB PDF. The name provides only the model, with no motherboard number, ODM project or revision, so check the…

Reference sheet for the 2SC2330, which the name marks as an NPN transistor, stored as a 431 KB PDF and filed under schematics.

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

Part data for the 2SD1805, supplied as a 96.5 KB PDF and categorised as a schematic. The name states nothing beyond the type number.

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.

Specification sheet in PDF format, 43.9 KB, for the 2SD2177A, the A-suffixed variant of the 2SD2177, with an additional _E tag in the name.

PDF sheet of 38.4 KB for the 2SD2575, with an _E suffix in the file name. Filed as a schematic, it most likely holds datasheet content, because 2SD is the JIS code for…

Component sheet for 5HP01C, a 26.8 KB PDF without any laptop, brand or board number in its name.

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…

Named after the 2SD2093, this PDF of 146 KB is most likely the component datasheet for that Japanese transistor.

The 2SD1879 is documented in this 94.5 KB PDF, indexed as a schematic yet most likely a manufacturer datasheet for the part.

PDF of about 25.4 KB for the 3SK303 semiconductor, filed in the schematic category. The file name holds only the part number.

Component sheet for the 3SK268 supplied as a 32.8 KB PDF and placed in the schematic category. Beyond the part number, the name gives no further detail.

Datasheet-style PDF of 118 KB for the 2SD1898, recorded in the index as a schematic but named after a single component.

This 91.1 KB PDF covers the 2SD1887 transistor; it sits in the schematic category but the file name matches a JIS component designation, pointing to a datasheet.

Only 28.2 KB, this PDF named 2sk123 is catalogued as a schematic, but the name is a JIS transistor number, so a short datasheet is the likely content.

Documentation for the 2SK2855, a 125 KB PDF catalogued as a schematic, with no details in the name besides the part number.

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…

Here the 2SK1234 N-channel field-effect transistor is described in a 46.1 KB PDF. The 2SK code marks it as an N-channel device under the Japanese JIS scheme, used in…

PDF of 32.5 KB covering the 2SK656, a part from the JIS 2SK range of N-channel field-effect transistors, so it is effectively a component datasheet rather than a device…

Reference sheet for the 2SD1313 transistor, stored as a 206 KB PDF and filed under schematics.

Datasheet-style PDF for the 2SD1302, 46.0 KB, listed in the schematic category. The 2SD prefix follows the Japanese JIS designation for NPN bipolar transistors in…

Datasheet PDF for the 2SD1222, sized 183 KB and placed in the schematic section of the index.

Compact 44.8 KB PDF for the 2SD1051, with an _E suffix in the name whose meaning is not stated, possibly a language or edition marker.

The 2SD968 is covered by this 42.9 KB PDF, whose name includes an _E suffix with no explanation given.

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

Datasheet for the 2SD814 NPN transistor, a 42 KB PDF whose _E suffix probably indicates an English edition.

Datasheet for the 2SD669 NPN transistor in a small 32 KB PDF, maker not stated in the file name.