RAR file of 2.08 MB labelled 3CESL-RH-13, likely revision 13 of the same 3CESL RH series, with no device or brand named.

Another 2.43 MB copy named 3CESV-RH-01, matching an entry with the same name and size, so it is probably a duplicate.

RAR package of 1.50 MB coded 4MPSV-20, apparently a later version, possibly 2.0, of the same series as the 4mpsv-11 file.

Schematic PDF with a short name showing only JV50, a MV tag, -1 and 0109, which is likely a project code with a revision and date, though the brand and model are not…

Small RAR archive of 618 KB labelled only as Dell D505, which points to the Latitude D505 notebook.

RAR archive of 1.23 MB for the Dell Latitude D630, labelled as the second of two files; no board number, revision or content type is stated in the name.

Archive of 4.03 MB for the Skittles 10 motherboard, board number 6050A2730001 revision A01.

Schematic in PDF form, 2.03 MB, for a subwoofer identified in the name as e150p. No manufacturer or board revision is stated, so confirm the model label on the enclosure…

Power supply schematic for Samsung part BN44-00508B, supplied as a 553 KB PDF, revision B. BN44 numbering covers Samsung TV power boards.

A 5.40 MB PDF schematic for the Samsung BN44-00496A power board. BN44 marks Samsung TV power supply units, and the board sticker should show the same number and revision…

Power supply schematic for the Samsung BN44-00472A board, a small 92.5 KB PDF. BN44 numbers designate Samsung TV power units.

Archive bearing only the Dell Latitude D820 model name, with no board number, graphics variant or revision stated.

Topstar S42G schematic in PDF form, 1.22 MB. The file name carries no revision, so compare the title block revision with the code printed on your motherboard.

PDF schematic for the Lenovo C510m, an 856 KB document; the name carries only the model, with no board number, revision or chipset details.

BIOS image for the Lenovo IdeaPad Z500 built on Compal motherboard LA-9061P; the name gives no revision or version.

BIOS image archive for Quanta motherboard DAX1BMB1AF0, revision F; the name does not state the laptop brand or model.

Russian-language PDF on the marking of electronic components, as the transliterated title Markirovka elementov REA indicates, filed under schematics but really a general…

ZIP archive of about 2.31 MB holding BIOS firmware for Quanta mainboard DA0U93MB6D0. No laptop brand or model is given in the name, so identification rests on the board…

Compact 632 KB PDF datasheet from Microchip covering the PIC16C64x and PIC16C66x microcontroller families, which include analog comparator features.

Datasheet covering the Microchip PIC18Fxx20 microcontroller family, a 7.04 MB PDF document.

Summary datasheet for the ATmega325, ATmega3250, ATmega645 and ATmega6450 AVR microcontrollers, a 231 KB PDF.

SM4450 processor schematic in PDF form, 1.28 MB; the name gives no phone model, board number or revision.

Firmware archive named only V301, which may be a version number; no brand, model or board is given, so the purpose has to be worked out from the contents.

Datasheet for the HCF4017, the CMOS decade counter and divider with ten decoded outputs, provided as a 380 KB PDF.

Compact 37.6 KB PDF for the 2SD1834 transistor, an NPN bipolar part in the 2SD series, most likely a short datasheet rather than a circuit schematic.

Covers the 2SD2195, a part whose JIS-style 2SD prefix identifies it as an NPN bipolar transistor rated for low-frequency work.

Datasheet-type PDF of 308 KB for the 2SD2553, filed under schematics. The Japanese JIS designation 2SD identifies an NPN bipolar transistor intended for low-frequency…

PDF reference of 26.7 KB for the part 5HN01S. Catalogued with schematics, it concerns one discrete semiconductor, the S ending probably identifying a package variant.

Reference sheet for the 2SD2116 NPN transistor, supplied as a 74 KB PDF. Its name follows the Japanese JIS 2SD convention and carries nothing beyond the part number.

PDF reference sheet for the 2SD1682 transistor, 150 KB, stored in the schematic category.

The 2SD1622 PDF, 138 KB in size, sits among schematics, but a file named only by a semiconductor part number is very likely the device datasheet.

The 2SD1409A file is a 212 KB PDF listed among schematics; a name made only of a part number strongly suggests a datasheet, and the A suffix denotes a variant of the…

Part documentation for the 2SD1876 in PDF form, 89.6 KB, categorised under schematics. Only the part number is given in the name.

Part sheet for the 2SK2698, delivered as a 413 KB PDF. Following JIS naming, 2SK parts are N-channel FETs, and the file size points to a complete datasheet with graphs…

Part 2SK2399 is the subject of this 423 KB PDF, catalogued as a schematic but in all likelihood a datasheet, since under Japanese JIS numbering 2SK stands for an…

A 134 KB PDF identified solely as 2SK2219, placed in the schematic category but most likely a transistor datasheet.

Very small at 23.3 KB, this PDF bears the lowercase part number 2sk2211 and is filed as a schematic, though it is most likely a brief datasheet or summary page.

Part number 2SK2199 names this 104 KB PDF, which is grouped under schematics but is most likely a datasheet for an N-channel field-effect transistor.

Identified only as 2SK2169, this 88.2 KB PDF sits in the schematic category but is most likely a component datasheet.

PDF of 101 KB for the 2SK1849 transistor, listed with schematics. In JIS numbering the 2SK prefix identifies an N-channel FET, so this should be the device datasheet…