Schematic PDF with an uninformative name, IO, which suggests an input/output or daughter board but states no device, brand or board number.

Boardview for the iPhone 5C, delivered as a 266 KB file in .bvr format. The name states only the model, without board number or revision.

PDF schematic, about 4.5 MB, for the AOC T2965M television, a model identified by its code in the file name.

Document on building a transmission line loudspeaker enclosure, a 498 KB PDF filed among schematics.

Merged PDF of application circuits for the STK41XX series, the Sanyo thick-film hybrid power amplifier modules used in many audio systems and mini components.

Simple preamplifier schematic built around the NE5532 dual low-noise op-amp, a 405 KB PDF; the extra tag in the name only marks the source site.

Lexicon MX200 documentation in PDF format, about 1.22 MB, indexed as a schematic for this dual reverb and effects processor.

ZIP archive of about 18 MB containing the Shazam application for PC, version 12.6.0. It is general software rather than a schematic, boardview or firmware file, and has…

Schematic in PDF for the GA-H77N-WIFI, labelled revision 1.01, a Gigabyte Mini-ITX board, archived as 640 KB RAR.

Schematic PDF for a Philips 32PFL3xxx television on the TP.VST59S.P89 chassis, 3.33 MB, with T3 in the name indicating a variant.

Schematic for the Gigabyte GA-B250M-DS3H desktop motherboard, revision 1.0, as a PDF packed in a ZIP archive.

Datasheet in PDF format, about 3.49 MB, whose numeric file name gives no hint of the component, manufacturer or part number it covers.

Intel 815E material at revision R1.05, archived as RAR with a size of 568 KB. The 815E pairs the Solano graphics memory controller hub with ICH2 for Pentium III and…

Circuit schematic and service manual for the Lenovo A520 smartphone, compressed as a 695 KB RAR file.

Circuit schematic for the Alcatel One Touch OT-806D mobile phone, compressed in a small RAR archive of about 206 KB.

Archive named RC4559, 343 KB, with no brand listed. RC4559 is the part number of a dual operational amplifier, so the contents are most likely the datasheet for that IC…

Boardview for the ASUS ROG MAXIMUS VI GENE micro-ATX motherboard, revision 1.02E, provided as a 172 KB ZIP.

Schematic for the Fujitsu Siemens Esprimo V6535 notebook, provided as a 1.06 MB PDF. The name carries only the model, without a board number or revision, so match the…

PCChips M863G motherboard documentation at version 7.1, compressed into a 455 KB RAR archive.

Service manual for the Xiaomi Redmi Note 3, model code 3Z, a 9.52 MB PDF. Phone service manuals usually cover disassembly steps, exploded views, spare part lists…

Samsung SM-C7000 schematic in PDF format, 4.95 MB, with repair-team tags in the name. The circuit sheets should show the PMIC, charging path, display and touch…

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.

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

Circuit diagram for the Samsung GT-S7500, provided as a 4.66 MB PDF, with no board revision stated.

Samsung GT-S5150 phone schematic, a 5.85 MB PDF with no revision indicated in its name.

Shared schematics for the Nokia 6670 and Nokia 7610, combined in a single 1.46 MB-class PDF of 1.45 MB.

Additional Nokia E60 schematic file marked as number 2, 1.28 MB in PDF form, complementing the larger E60 diagram set.

Schematic drawings for the Nokia 5500 phone in a 1.31 MB PDF. The name lists only the model, with no board code or revision stated.

Nokia 5700 handset schematic in PDF form, roughly 953 KB. Apart from the model the file name carries no revision or board code, so confirm the PCB matches before relying…

Nokia 3300 service schematics, a 2.05 MB PDF covering the handset circuitry. The file name identifies only the model, with no revision or board number, so verify against…

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…

A 281 KB PDF datasheet for the TL071, the low-noise JFET-input operational amplifier common in audio preamplifiers, mixers and measurement circuits.

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

PDF for the KA4558, a dual operational amplifier in the KA series, equivalent in function to the familiar 4558 dual op amp, size 121 KB.

Component data for the 2SB1527 in PDF form, roughly 73 KB, catalogued as a schematic though the bare part number suggests a datasheet.

PDF datasheet-style file for the 2SB1290 transistor, only 38.7 KB, so likely a brief sheet of a few pages. The name carries no other details such as package or maker.

Reference PDF for the 2SA1127 transistor, 41 KB, filed in the schematic category, with an _E suffix in the name whose meaning is not stated.

Schematic for the Apple iPhone 7 Intel version, meaning the variant with an Intel baseband modem, in a 1.27 MB PDF.

Audio section of the Samsung SM-A20S schematic covering microphone, loudspeaker and earpiece circuits, a 4.63 MB PDF.