Wistron schematic for the SJV50-TR project, revision -1 with a 1Sec suffix in the name, provided as a 1.21 MB PDF.

RAR archive named simply G730, about 2.96 MB. The name does not state the brand or the files inside, so extract it with WinRAR or 7-Zip and inspect the contents.

Datasheet covering the 74HC164 and 74HCT164, an 8-bit serial-in, parallel-out shift register without output latches.

Samsung C3322 schematic, a 937 KB PDF for this dual-SIM feature phone. The name states no board revision.

Schematic diagrams for the Nokia 7210 colour-screen phone, a 4.56 MB PDF. The name provides only the model, with no board number or revision, so confirm the main board…

Nokia N90 schematics in a 1.35 MB PDF, separate from the other numbered N90 parts in the collection.

Schematic diagrams for the Nokia 7600, the unusually shaped 3G handset, supplied as a 1.67 MB PDF.

Schematic for a Nokia phone listed as model 26110 in a 1.87 MB PDF. The number as written does not match a familiar Nokia model, so it may be a typo for another handset…

Schematic diagram in PDF for the IBM ThinkPad R40, roughly 1.45 MB; the name gives no board number or revision.

Circuit diagram titled UX50, delivered as a 1.45 MB PDF. The name gives no brand, revision or full board number, so read the cover page to confirm which board it covers.

Specification sheet for a green 10 mm LED, provided as a 517 KB PDF. The name gives no manufacturer or part number, so check the document for the exact series, luminous…

Full 5.89 MB PDF datasheet for the Microchip PIC18Fxx39 group of 8-bit flash microcontrollers, a family that includes on-chip motor control features.

Full datasheet for the ATmega406 AVR microcontroller, a 1.68 MB PDF. This chip is designed for smart lithium battery packs, integrating cell balancing, voltage and…

Datasheet for the TMS75176B, a Texas Instruments differential bus transceiver for RS-485 and RS-422 links, a variant of the widely used 75176 family.

Datasheet for the 4N25 phototransistor optocoupler, a classic six-pin DIP isolator used in power supplies, interfaces and control circuits.

Zip package of flash tools for the SR-1515HD receiver, roughly 3.44 MB. It most likely contains the loader utility used to push firmware to the box over a serial or USB…

Schematic in PDF, 1.96 MB, centred on the SM7150 processor according to its name; the phone model and board revision are not stated.

Reference PDF for the CD4094, an eight-stage shift-and-store bus register from the CMOS 4000 series, as the name notes it is a shift register.

Datasheet-style document for the 2SD2581 transistor, saved as a 43.7 KB PDF and filed in the schematic category.

Compact 42.8 KB PDF for the 2SD2537, listed as a schematic though the name points to a single-component datasheet.

Component documentation for the 4N38 optocoupler, filed under schematics though it is in practice a part datasheet in PDF form of about 140 KB.

This PDF of about 124 KB covers the 2SD2114 transistor with a KS suffix; the suffix is not explained by the name and may denote a gain class or package variant.

The 2SD2079 PDF, 219 KB in size, is indexed as a schematic yet corresponds to a single discrete component.

The name offers nothing beyond the 2SD2500 part number, and the 250 KB PDF is almost certainly that transistor's datasheet.

The 2SD1683 is the subject of this 146 KB PDF, which is catalogued as a schematic although the name is a transistor part number.

Part reference for the 2SD1669, supplied as a 107 KB PDF and filed in the schematic section.

Small 33.0 KB PDF for the 3SK144, catalogued as a schematic but named for an individual semiconductor, so it is most likely a datasheet.

Document for the 3SK227 semiconductor, stored as a 30.6 KB PDF and catalogued under schematics.

The 3N248 is covered by this 43.6 KB PDF, indexed under schematics but named only by its JEDEC part number.

The 2SD1511 NPN transistor is the subject of this 56.9 KB PDF, filed under schematics in the index. JIS numbering assigns 2SD to low-frequency NPN bipolar parts.

The 2SK3413LS is documented in this compact 32.2 KB PDF, indexed as a schematic but effectively a component datasheet.

For the 2SK3411 transistor, this 32.0 KB PDF provides the component reference, even though the index files it as a schematic.

Here the 2SK3285 is documented in a 48.6 KB PDF, placed in the index's schematic section.

The name of this 421 KB PDF carries just one token, 2SK2836, a JIS-format number for an N-channel FET.

PDF reference for the 2SK2825, 301 KB in size and listed in the schematic section. The 2SK designation, from the Japanese JIS numbering system, belongs to N-channel…

Part reference for the 2SK2782, delivered as a 419 KB PDF under the schematic label. The 2SK prefix follows Japanese JIS numbering for N-channel field-effect…

The 2SK2718 is documented in a 412 KB PDF that the catalogue files under schematics, though by its name it is a component datasheet.

Reference PDF for the 2SK2714 transistor, 144 KB, filed in the schematic section. JIS naming uses 2SK for N-channel field-effect transistors, so the contents should be a…

Brief 34.7 KB PDF for the 2sk2581 transistor, catalogued as a schematic. JIS naming assigns 2SK to N-channel field-effect transistors, and the name gives no further…

Reference sheet in PDF format for the 2SK2549 field-effect transistor, 373 KB in size. In the JIS numbering used by Japanese semiconductor makers, 2SK denotes an…