ASUS X553MA laptop schematic, a PDF of around 1.17 MB; the RG suffix in the name is not explained and may mark a board revision or variant.

Compal LA-D071P schematic in PDF format, about 4.1 MB. The name lists no laptop brand, model or revision.

PDF reference listing Ricoh component marking codes, the short codes printed on small SMD packages.

Apple iPhone 4S schematic in PDF format, 1.34 MB in size. The name states only the phone model, without a board number or revision.

Schematic PDF for the Lenovo IdeaPad 300-15ISK laptop, board NM-A481 at revision 0.3. NM-prefixed numbers belong to LCFC, Lenovo's own design house.

PDF schematic of the HP Compaq Presario CQ40 on Compal motherboard LA-4101P, 1.64 MB in size.

Small 113 KB PDF for an Acer device, labelled with the Compal LS-5673P number, with the label repeated in the name.

Schematic for a Samsung Galaxy Core Plus, labelled gt 18580, a 5.99 MB PDF. The model code likely corresponds to the GT-I8580 Galaxy Core Advance or a similar unit, but…

Schematic for the Samsung Galaxy A3 Duos, the dual-SIM version of the A3, in a 3.16 MB PDF. The name gives no model suffix or board revision.

Shared schematic for the Nokia 6170 and 7270 phones, packed into a single 1.64 MB PDF, suggesting the two models use closely related circuitry.

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…

Lenovo laptop schematic for the NM-A281 mainboard, an LCFC design, supplied as an 878 KB PDF whose name carries no revision.

Circuit diagram for the Lenovo ThinkPad Edge E420, a 1.22 MB PDF with no board number or revision stated in the name.

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

PDF schematic for the Lenovo Y470, with the name giving the model only and no board number, ODM or revision.

Schematic PDF named LA46-Dis, with no brand, model or full board number stated, so the exact target is unclear.

IBM schematic PDF named only YUKON, which looks like an internal project code name; the name does not state the ThinkPad model or revision.

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

Schematic drawing set for the IBM ThinkPad T40 in PDF format, 1.08 MB. Beyond the model, the name provides no board number, revision or configuration details.

Schematic for the IBM ThinkPad A31, a 1.00 MB PDF whose name gives only the model. No board number or revision is mentioned, so compare the PCB markings with the…

Circuit diagram for the Z94 board, revision 1.1, as a 902 KB PDF. No brand or full board number appears in the name, so the cover page should be consulted to confirm the…

Laptop schematic for the Toshiba Satellite A215, provided as a small 557 KB PDF. The name gives no ODM, board number or revision, so check the title block inside against…

Mainboard schematic tagged HK5 with the note mb-pvt-0202a, indicating a production validation test build and an internal date or version code; no brand or board number…

Schematic for Compal function board LS-4498P, part of the KAL90 project, revision 1.0, in a 24 KB PDF.

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…

Short PDF document of 124 KB titled DMI process, catalogued as a schematic but more likely a procedure guide. No laptop brand or model is named.

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…

Samsung GT-I9300 Galaxy S III service manual, revision 1.0, 9.31 MB PDF. Manuals of this type generally cover specifications, disassembly, block diagrams, schematics…

Schematic PDF for the HP TX1000 notebook. The file name gives only the model, with no board number, ODM project code or revision, so confirm the motherboard markings…

PDF schematic labelled only CQ32, which most likely refers to the HP Compaq Presario CQ32 notebook, though the name gives no board number, ODM or revision.

Repair guide for the G750JH gaming notebook, RG in the name, in a 999 KB PDF. Such guides typically show the mainboard with highlighted parts, expected voltages at test…

Schematic PDF for the ASUS PU551JA laptop motherboard, revision 2.0, about 5 MB. The diagrams show power rails, the charger and PWM controllers, embedded controller…

Reference PDF for the 74LVC00A quad 2-input NAND gate, a larger 517 KB edition that likely includes several package options and detailed timing tables.

PDF for the 74AC00, a quad 2-input NAND gate in the advanced CMOS family, 302 KB, catalogued as a schematic; the name drops the digit before input, but the part number…

PDF for the KIA324P, a KEC quad operational amplifier compatible with the widely used LM324, in a DIP package as the P suffix suggests.

Reference for the FGH40N60SFD IGBT, with the name stating 40 A and 600 V, supplied as a 463 KB PDF.

PDF covering the BUW84 and BUW85 transistors in a single 101 KB document, filed as a schematic.

Datasheet-style PDF covering the BD233, BD235 and BD237 family of medium-power transistors, filed here under schematics.

PDF data for the BC328 PNP transistor, the name listing minus 30 V and minus 800 mA ratings, filed under schematics at 53.5 KB.

The 3N258 is the subject of this 42.2 KB PDF, indexed as a schematic but in practice a component reference.