One PDF of 74.3 KB covering two variants, 11DQ03 and 11DQ04, as the combined name indicates.

Schematic PDF, 518 KB, named U56E_RG. U56E is the model or board code, and the RG suffix is not explained in the name, so check the title pages to understand it.

PDF schematic of 790 KB for the Quanta RJ6 motherboard project. The name gives no laptop brand, model or revision, so identify the board by the DA0RJ6-style code usually…

Schematic material for the Sony Ericsson Z320 handset, a PDF compressed into a small 245 KB RAR.

PDF document of 972 KB named only TX4150A, catalogued as a schematic, with no brand, device or board details in the name.

Mirrored PCB artwork for a Zener amplifier board, a 237 KB PDF; espejo is Spanish for mirror.

2.1 amplifier schematic attributed to Amiru, a compact 98.7 KB PDF. The name gives no details about the ICs or power level, so the diagram itself must be read for…

Technical Mriganka 2.1 amplifier design using the TDA7379 and TDA7377 power amplifier ICs, a 206 KB PDF.

Troubleshooting guide in PDF form, 2.28 MB, with no brand or model stated in the name. Sections of this kind in service manuals usually present fault flowcharts for…

Inventec schematic set for the PIXIES RX02 platform with board number 6050A2426501, delivered as PDF files in a 791 KB RAR.

Schematic for the Biostar A78DD-M2T motherboard, packed as a PDF in a 910 KB RAR archive.

PDF schematic of the Gigabyte GA-P85-D3 at revision 1.0, the earliest release of this board, compressed in a 964 KB RAR archive.

Early 0A revision schematic for the MS-7389L2 board, a smaller 698 KB PDF than the later editions.

Schematic in PDF form for Inventec motherboard 6050A2509701, revision A02, packed in a 983 KB RAR.

Schematic in PDF, 889 KB, carrying only the label X61, with no manufacturer, board number or revision given in the name.

PDF repair guide for the ASUS UX31E, catalogued under schematics. Asus repair guides typically contain block diagrams, power sequence notes, troubleshooting flowcharts…

Schematic in PDF format for the Mo-1225 analog oscilloscope, with the file title in Portuguese.

MSI MS-7298 motherboard schematic, compressed into a RAR file of about 989 KB. The name offers no revision, chipset or other variant detail, so check the revision…

Service schematic in PDF form for the Samsung SM-E500H, the Galaxy E5 smartphone, 7.24 MB.

Repair guide for the ASUS E403SA in PDF format, 672 KB, catalogued with schematics. Such guides usually describe the power sequence, main rails and common failure…

Schematic diagrams for the Nokia 770 Internet Tablet, named N770 in the file, provided as a 901 KB PDF.

Schematic archive named only M33, with no brand given, a 940 KB ZIP. The name is too brief to identify the device reliably; it may be a phone model code, but that is not…

PDF document of 132 KB for the HCF4093, the ST version of the 4093 quad two-input NAND gate with Schmitt-trigger inputs.

Reference PDF of 598 KB for the CD4042BE, a CMOS quad clocked D latch in the 4000 series; the E suffix usually indicates the plastic DIP package.

CD4017 document in PDF form, 81.0 KB, for the CMOS decade counter with ten decoded outputs.

Document for the BA7075, a ROHM integrated circuit, provided as a 158 KB PDF and filed as a schematic.

PDF of 536 KB for the Atmel AT93C46, a small serial EEPROM using the Microwire-style three-wire interface.

PDF reference for the 2SD1852, a 2SD-series NPN bipolar transistor, about 96.5 KB and more likely a component datasheet than a circuit diagram.

Reference sheet for the 2SD526 NPN bipolar transistor, provided as a 187 KB PDF and filed in the schematic section. Only the part number is given in the name.

Compact 42.5 KB PDF for the 2SD1824, carrying an E suffix in the name that is not otherwise explained.

Data for the 2SD2184, an NPN low-frequency bipolar transistor according to the Japanese 2SD numbering prefix, supplied as a 43.8 KB PDF.

Part documentation for the 2SD2579, provided as a PDF of 43.3 KB under the schematic heading.

A 43.8 KB PDF for the 2SD2565 transistor, its name ending in _E. Although classified as a schematic, the file is most likely a datasheet, as the JIS prefix 2SD…

Datasheet for the 4N38 optocoupler, marked as revision 2 in the name and supplied as a 294 KB PDF filed among schematics.

Short 44 KB PDF covering the 4N32 and 4N33 optocouplers, two closely related members of the 4N family that use a Darlington phototransistor output for high current…

Revision 5 of a datasheet for the 4N25 optocoupler, a 281 KB PDF. The 4N25 is one of the oldest and most common phototransistor-output isolators, often found in power…

Datasheet for the 2SD2117, filed as a schematic but actually a component specification in PDF form, about 67.5 KB.

At 242 KB, the 2SD2092 PDF is one of the larger files in this series and carries no information beyond the part number.

This 244 KB PDF covers the 2SD2075A; the trailing A marks a variant of the base 2SD2075 type, though the name does not say how it differs.

One of the larger sheets in the set at 271 KB, this PDF is named after the 2SD2498 and serves as a transistor datasheet.