Technical PDF on boosting power supplies, 2.24 MB, filed among schematics. The name points to step-up (boost) converter topology rather than a particular TV or board…

Schematic for the Samsung SM-J530F handset, delivered as a 4.73 MB PDF without a revision stated in the file name.

Apple iPhone SE PCB and schematic document, a compact 554 KB PDF. The name suggests it combines circuit drawings with board layout information, though no board number or…

Marking-code guide in PDF for Micro Commercial Components (MCC), a maker of diodes, transistors, MOSFETs and other discrete semiconductors.

Schematic diagrams for the Nokia 1220 handset, packed in a 564 KB PDF; no revision is given in the name.

Schematic for the Toshiba Satellite A300 laptop, a 1.00 MB PDF whose name does not state the ODM, board number or revision.

Laptop schematics for the Toshiba Satellite A30, built on Compal's LA-2051 motherboard, provided as a 979 KB PDF.

Troubleshooting section of the service documentation for the Samsung GT-S7580 Galaxy Trend Plus, supplied as a 3.08 MB PDF; TSHOO is Samsung shorthand for…

Laptop schematic identified only by the number 4520, with no brand, board number or revision stated in the name, so the exact model cannot be confirmed from the title…

Schematic diagram for the Samsung NP-R423 laptop, supplied as a PDF of about 1.1 MB. Apart from the model, the name carries no board code name or revision, so confirm…

Repair guide for the ASUS K43L notebook, delivered as a 554 KB PDF with photos, catalogued here under schematics.

PDF document of 577 KB for the AD620, filed in the schematic category although a part-number name like this normally indicates a component datasheet.

Filed as a schematic, the 28.3 KB PDF 3LN02SP is named after what appears to be a discrete component code, here from the LN series with an SP suffix.

Datasheet-style PDF of 414 KB for the 2SK2916, catalogued here as a schematic. The name gives nothing but the part number; 2SK designates an N-channel field-effect…

PDF of 137 KB for the 2SK2793, with a 1-5 suffix in the name whose meaning is not explained; it may indicate a page range or document version.

Listed under schematics, this 94.5 KB PDF carries only the designation 2SJ276. Under the JIS system the 2SJ prefix belongs to P-channel FETs, so the file is almost…

Bearing only the part code 2SJ264, this 101 KB PDF relates to a P-channel FET, as the JIS 2SJ prefix designates that transistor type.

Compact 63.0 KB PDF for the 2SC5585, a JIS-numbered transistor, indexed with schematics. The name provides the part number alone, without maker or revision.

Short 125 KB PDF on the 2SC5086FT, the FT-suffixed variant of the 2SC5086 NPN transistor; the name does not say what the suffix means, though such suffixes usually mark…

Named after the 2SC1383, this 51.4 KB PDF is listed as a schematic, yet the JIS prefix 2SC denotes an NPN bipolar transistor, so expect a part datasheet.

Datasheet for the 2sb1566 PNP bipolar transistor in a 37.5 KB PDF. The 2SB label, per the JIS convention, means a PNP device for low-frequency circuits; the file name…

Filed as a schematic, the 51.8 KB PDF for the 2SA1534 carries an _E suffix in its name whose meaning is not stated; the content is most likely the datasheet for this JIS…

The 2SA1518 is the subject of this 30.2 KB PDF, which the index files as a schematic although the name suggests a component data sheet.

PDF of 41.0 KB for the 2SB873, with an _E suffix whose meaning the name does not explain.

A 39.8 KB PDF filed under schematics that covers the 2SB835 transistor, with an _E suffix in the name whose meaning is not stated and may simply denote an edition or…

An 86 KB PDF covering the 2SA1896, a PNP bipolar transistor under the Japanese JIS 2SA designation.

The 2SA1869 is covered by this 174 KB PDF, a PNP bipolar transistor in the Japanese JIS 2SA series.

Small 81.5 KB PDF named after the 2SA1724 part number and filed under schematics. Nothing else in the name identifies a product or circuit board.

Component PDF of 133 KB for the 2SA1705, filed as a schematic but named after the part only, with no device or board information.

A 272 KB PDF for part number 2N5555, with a rev0x tag in the name that seems to mark a document revision, though its exact meaning is not stated.

Part number 1T409 is the only information in the name of this 49.5 KB PDF, which is catalogued as a schematic.

Filed among schematics, this 61.3 KB PDF actually documents a single part, the JEDEC-registered 1N485B diode.

PDF datasheet for the 1N4933G, a variant of the 1N4933 fast recovery rectifier, 169 KB in size and larger than the other versions in the set.

Small 34.5 KB PDF filed as a schematic and named 78P7200-IH. The name gives no laptop model or board number; it looks like an integrated circuit part number with a…

A small PDF of 48.8 KB indexed under schematics, whose name points to a 44-lead PLCC package, most likely a package outline or socket drawing rather than a full circuit…

Named 20MT40KB, this 127 KB PDF is classed as a schematic, though the name does not identify any device, board number or revision.

PDF schematic for the Apple A1181 MacBook, logic board 820-2279 at revision A. Apple's 820-xxxx numbering identifies the specific logic board, so the number printed on…

Small PDF, 376 KB, whose Spanish title means converters, with no device, brand or model in the name.

Spanish reference on SMD coils or inductors, a 273 KB PDF covering surface-mount types found on modern boards. The name gives no device.

Portuguese-language handout on basic electronics, filed under schematics although the name points to a study booklet rather than a circuit diagram of a specific device.