Wistron DJ1 schematic for a Calpella-platform board in UMA form, revision X01, a 798 KB PDF.

Apple iPhone 4S schematic in PDF form, about 650 KB. A circuit diagram like this helps trace power rails, check connections between the processor, PMIC, charging…

Datasheet PDF, 312 KB, for the LM324 quad op amp, listed in the schematic category without a manufacturer in the name.

Another reference for the IRF540 power MOSFET, provided as a 117 KB PDF and indexed as a schematic despite being named a datasheet.

Reference for the BU2508AX, provided as an 81.1 KB PDF catalogued as a schematic, which is most likely the component datasheet.

The 2SD2179 transistor is the subject of this 43.9 KB PDF, carrying an _E suffix in its name.

A 136 KB PDF for the 2SK2887, with a 1-5 suffix in the name that most likely refers to page range or a document section, though this is not certain.

Component documentation for the 2SK1475, a JIS-style part number whose 2SK prefix identifies an N-channel FET.

The 2SC3153 is the subject of this 98.0 KB PDF, catalogued as a schematic though the name points to a discrete-part data sheet.

Although catalogued as a schematic, this 51.4 KB PDF is named for the 2SC1317, which the JIS 2SC prefix identifies as an NPN bipolar transistor, so a component datasheet…

Part document for the 2SA1735 transistor, stored as a 151 KB PDF and catalogued under schematics.

Datasheet in PDF, about 91 KB, for the 93C66 serial EEPROM, the 4 Kbit member of the widely used 93-series Microwire family; the _3 suffix in the name likely marks a…

A short 147 KB PDF labelled only 93AA76, catalogued as a schematic but most likely an older datasheet for that Microwire serial EEPROM part.

The name 31DQ05 suggests a discrete diode part number, so this 75.9 KB PDF, although catalogued as a schematic, is probably a single-part datasheet.

Small 27.9 KB PDF listed as a schematic and named 27LV256-20IL, a part code for a low-voltage 256 Kbit EPROM.

Short PDF of about 104 KB on the 24LC08 serial EEPROM, an 8 Kbit memory with a two-wire I2C interface.

Part documentation in PDF form, 124 KB, for the 24LC04 4 Kbit two-wire serial EEPROM. Nothing in the name indicates a suffix, package or revision.

Reference PDF of 310 KB labelled with the 24C32 part number, which corresponds to a 32 Kbit (4 KB) I2C serial EEPROM.

A 75.1 KB PDF titled after the 24C16 part, with a _3 suffix that likely marks a third copy or revision of the same reference sheet.

A 333 KB PDF datasheet for the 24AA16 and 24LC16B, 16 Kbit serial EEPROMs using the I2C bus.

A PDF datasheet for the 24AA04 and 24LC04B, 4 Kbit I2C serial EEPROMs commonly used to hold small configuration or calibration data.

Short PDF of 17.5 KB titled 23SC4428, catalogued under schematics. The name gives only a part number, and its 4428 suffix resembles that of a known smart-card memory…

A 122 KB PDF named 23c512, filed as a schematic though the name indicates a component document for a part numbered 23C512.

Schematic for Compal motherboard LA-G871P, supplied as a PDF inside a 651 KB RAR archive. The name does not give the laptop brand, model or revision.

PDF reference on the CPU power sequence for Intel Broadwell-ULT processors, 1.66 MB. It is catalogued as a schematic but likely shows the order of rails, enables and…

Circuit schematic for the IBM ThinkPad R32, provided as a 1.18 MB PDF. The name mentions no board number or revision, so check the motherboard silkscreen against the…

IBM ThinkPad R31 schematic in PDF, a compact file of about 1022 KB. Only the model appears in the name, with no board number or revision, so verify against the labels on…

Inventec schematic for the 15SBGV2 / 15SBGV2D mainboard, part number 6050A2548101, built on the Intel Shark Bay platform with a PGA processor socket and labelled PV…

Schematic PDF for an Apple Mac mini logic board 820-3227, project code J50I. Apple identifies its boards with 820-xxxx numbers, and that number is the key to finding the…

Compressed schematic set for a Samsung device identified only by the model code T970, a code that probably belongs to a Galaxy Tab family.

Spanish notes on basic electronics, a 591 KB PDF. The name mentions no device, board or brand, so it serves as study material on fundamentals such as electrical…

SIM card circuit page from the Samsung SM-A30S (Galaxy A30s) schematic set, saved as a 4.29 MB PDF.

Network and RF section schematic for the Samsung SM-A23, a 2.78 MB PDF from a series of per-function sheets.

LCD circuit schematic for the Samsung SM-A22 5G, delivered as a 5.26 MB PDF. The sheet documents the display connector, MIPI data lanes, panel power rails and control…

Front camera schematic for the Samsung SM-A21s, PDF, 3.82 MB. It shows the selfie camera connector together with its power rails and data connections to the main board.

Schematic in PDF format named only with the number 17823, with no brand or model stated.

PDF titled BOT, catalogued as a schematic and 232 KB in size; the name gives no model, brand or board number.

Circuit diagram in PDF for a board identified as SN3 with the code name SHINAI-3, a 1.16 MB file.

Quanta ZL6 mainboard schematic in a 873 KB PDF, with no revision marked in the name; the same size as a separate rev 2A copy suggests it may be the same document, though…

Quanta CT6 schematic, a 986 KB PDF that opens in any PDF reader. Only the Quanta project code is given; the name states no revision or retail model.