Service schematics covering the Nokia 1112 and its 1112i variant, packed into one 645 KB PDF.

Nokia 3210 schematics in a 981 KB PDF, with no board revision mentioned in the name. This classic handset is still repaired by collectors and technicians, and the sheets…

Circuit diagram for the Nokia 6150 phone, stored as a 431 KB PDF. No revision or board issue is stated in the name, so check the drawing against the actual PCB layout.

Nokia 2300 schematic diagram, a PDF of 317 KB with no revision or board version mentioned in its name.

Schematic for the Lenovo Z360 laptop built on the LL7A board, covering the discrete graphics version at revision 1A, in PDF form.

Compal schematic for the Lenovo XR150, board LA-2201 with project code DCL55 at revision 3.0, in PDF format.

IBM ThinkPad T41 schematic, a 1.09 MB PDF with no board number or revision mentioned in its name.

PDF schematic labelled UL20A, a 1.32 MB circuit diagram for the notebook mainboard carrying that model designation; the name gives no board number, revision or brand.

ASUS F5Z laptop schematic, an 863 KB PDF identifying the model but not the board revision or number.

Schematic for the ASUS Eee PC T91, with R12G in the file name most likely indicating a board revision, though that is not stated explicitly; the PDF is 597 KB.

Small schematic covering the touchpad board for the Sony MS70 project, associated with the MBX-160 mainboard, at revision 0.20.

Schematic for the ASUS K42JR laptop, revision 2.0, as a 2.69 MB PDF. No motherboard code is given, so confirm the revision printed on the PCB matches 2.0 before relying…

Schematic diagram for the Apple iPhone 4S, supplied as a 1.34 MB PDF. It is useful for following signal paths and supply lines, locating the circuits behind faults such…

Complete datasheet in PDF form, 1.23 MB, for the tiny26, which corresponds to the Atmel AVR ATtiny26 8-bit microcontroller. No revision is given in the name.

Large 10.5 MB PDF datasheet identified only by document number 6175, with no part name in the file title.

Boardview content exported to PDF for the ASUS ROG Zephyrus G14, model GA401IH, catalogued as a schematic-type document.

A 32.6 KB PDF covering the 2SK2325, a Japanese-registered semiconductor whose 2SK prefix means N-channel field-effect transistor.

Catalogued among schematics, the 43.5 KB PDF called 2SJ499's neighbour 2SJ485 refers to a semiconductor part; under the JIS scheme the 2SJ prefix designates a P-channel…

Despite sitting in the schematic category, this 99.9 KB PDF is named after the 2SC4164 and should therefore contain transistor specifications rather than a circuit…

Single-part reference for the 2SC4864 in a 118 KB PDF, catalogued as a schematic. Apart from the part number, the name gives no information.

Component documentation for the 2SC3183 transistor, supplied as a 106 KB PDF and listed under schematics.

A 190 KB PDF holding the data document for the 2SB1640 transistor, indexed under schematics.

The 2SA1592 is covered by this 156 KB PDF, filed as a schematic although the name refers to a single semiconductor.

Part number 1N6392 names this 43.5 KB PDF, a component datasheet for a JEDEC 1N-series device filed in the schematic category.

Reference sheet for the 1N4004 general purpose rectifier diode, a 68.9 KB PDF in the schematic section. No manufacturer appears in the name.

Larger 697 KB PDF relating to the 1N4001 rectifier, filed in the schematic category. The double plus in the name gives no clear information, so it may be an extended…

A 119 KB PDF tagged as a schematic and named 27256b, the b suffix suggesting a revised variant of a 27256 part.

Tiny 14.4 KB PDF titled 25C020, filed under schematics with no brand, board or device named.

Cover page of a service document, only 44.5 KB in PDF form; the name gives no brand or model information.

Spanish cell phone repair course material that appears to come from a training institute abbreviated INED in the name.

Schematic PDF with an uninformative single-letter name, B, so neither the device, the brand nor the board number can be determined from the name.

Troubleshooting chapter, 2.39 MB PDF, with no device or brand named in the title, so the covered model must be confirmed by opening it; it likely belongs to a split…

PDF with diode mode measurements for the A30, presumably the Samsung Galaxy A30, though the name does not name the brand.

A 119 KB datasheet in PDF format bearing only the document code SDZS012, one of a numbered series of similar files.

Datasheet in PDF form, 588 KB, carrying only the code SDLS193 as its name. The SDLS prefix matches the literature numbering Texas Instruments uses for its classic TTL…

PDF datasheet carrying the Texas Instruments literature code SDLS116, from the numbering block TI uses for its classic bipolar TTL logic families.

PDF with the Texas Instruments literature number SDLS113, a code from the range TI applies to its older 54/74 TTL logic datasheets.

Generic file named index2, a very small 20.9 KB PDF catalogued as a schematic. The name reveals nothing about the device, brand or board, so open it and identify the…

PDF schematic whose name refers to Z470, a 989 socket or pin designation and PCH, the Intel Platform Controller Hub.

MSI MS-7508 motherboard schematic, likely revision 1.0 judging by the trailing 10 in the name.