Schematic whose name only gives S22, MB and VB, so the brand, model and revision cannot be determined from it. The 1.14 MB PDF should contain motherboard circuit pages.

Schematic diagram for a device identified only as Z60s, packed in a 770 KB zip; the name states no brand.

PDF schematic for the Quanta motherboard DA0QUAMB6E0 at revision E, in a 1.80 MB zip. It is useful for tracing power rails and the power-up sequence, checking the…

PDF schematic for the Quanta 0P9 motherboard DA0P9MB16D0, a version with SO-DIMM memory slots, in a 1.78 MB rar.

Toshiba Portege R830 schematic in a sizeable 19.9 MB PDF. The file name carries no board number or revision, so open it and compare the project and board markings with…

Lenovo ThinkPad T440p document, labelled SOVP with V101, EC009 and 0815, which likely refer to a version, an EC reference and a date code, though the name does not…

Lenovo schematic for the LCFC project JINN DOOKU, revision 0.1, marked SDV (an early design-validation stage), in a RAR of about 1.7 MB. The name gives no board number.

Schematic in PDF for the Acer Aspire A315-31 laptop, Quanta board DA0Z8PMB8D0 revision D.

Portuguese-language PDF guide whose title translates to How to Test Electronic Components, 620 KB in size.

Troubleshooting chapter from the common Samsung SM-M307F service manual, a 2.02 MB PDF for the Galaxy M30s.

Datasheet-style PDF for the AO4601, filed here as a schematic, 686 KB. The part number matches an Alpha and Omega Semiconductor dual MOSFET in an SO-8 package combining…

Schematic set for the Quanta JW6 and JW7 motherboard designs, with an rb tag in the name whose meaning is not stated.

Small 91.1 KB PDF named sn608098, filed as a schematic. The name does not reveal the device; it may be a Texas Instruments component number, though that cannot be…

Desktop motherboard schematic PDF of 1.46 MB for the 8I865GME-775-RH, version 2.0. The name indicates an Intel 865G-based board for socket LGA775.

PDF schematic labelled only 1002, in an unlocked version with document protection removed so pages can be printed and searched.

HP Envy 17 schematics based on the Quanta SP8 design at revision 3A, provided as a 1.28 MB PDF.

Service schematic for the Samsung Galaxy J7 Core, model SM-J701F, in a 593 KB PDF. Phone schematics like this let a technician follow power rails from the PMIC, trace…

Schematic for the Samsung Galaxy A8, covering model codes SM-A800I and SM-A800F, in a 581 KB PDF.

Base Wistron JV50 schematic set in revision RSB, archived as a 1.55 MB RAR. The name gives no laptop brand and no variant suffix, which separates it from the TR, TR8 and…

Top-side board drawing for the Xiaomi Mi 4 LTE phone, a compact 42.9 KB PDF indicated by the board_up label.

Samsung SM-G850F schematic, a large 14.7 MB PDF. The size suggests detailed circuit sheets and possibly layout pages showing where components sit on the board.

A 648 KB PDF schematic covering the Acer Aspire 5332, 5732, 5732Z and 7715 family. The file name gives no motherboard number or revision, so check the title block inside…

Samsung C3322 schematic, a 937 KB PDF for this dual-SIM feature phone. The name states no board revision.

Schematic diagrams for the Nokia 6220 handset in a 1.58 MB PDF. Neither board code nor revision appears in the name, so verify the PCB label against the document before…

Nokia N90 schematics in a 1.35 MB PDF, separate from the other numbered N90 parts in the collection.

Nokia N91 music phone schematics in a 2.27 MB PDF. The name does not state a board code or revision, so confirm the PCB markings against the document before relying on…

Schematic diagrams for the Nokia 7600, the unusually shaped 3G handset, supplied as a 1.67 MB PDF.

ThinkPad T60 schematic in a 1.63 MB PDF, with GM in the name most likely pointing to the 945GM chipset build with integrated graphics; no revision is stated.

Troubleshooting chapter for the Samsung GT-S7580 and GT-S7582 phones, section 7 of the service manual, in a 3.08 MB PDF.

PDF schematic section for the SM6150 processor, also tagged SM61, about 1.26 MB, with no device model specified.

Component documentation for the 2SD2257 transistor, in PDF form at 180 KB. Although the index lists it as a schematic, the file name points to a single discrete part…

Covers the 2SD2218 NPN transistor in a 122 KB PDF filed under the schematic category. Only the transistor type appears in the name.

Covering the 2SD2645, this 29.3 KB PDF sits in the schematic index although the name suggests a component datasheet.

Datasheet-type PDF, 30.8 KB, for the 2SD2627LS, catalogued as a schematic. The LS suffix is part of the type designation and likely refers to a specific variant or…

Single-part PDF of 47.0 KB for the 2SD2583, listed as a schematic but most probably a datasheet.

Datasheet-style document for the 2SD2581 transistor, saved as a 43.7 KB PDF and filed in the schematic category.

Compact 42.8 KB PDF for the 2SD2537, listed as a schematic though the name points to a single-component datasheet.

This PDF of about 124 KB covers the 2SD2114 transistor with a KS suffix; the suffix is not explained by the name and may denote a gain class or package variant.

The 2SD1683 is the subject of this 146 KB PDF, which is catalogued as a schematic although the name is a transistor part number.

Transistor documentation for the 2SD1667, 136 KB in PDF format. Nothing beyond the part number appears in the name.