Nokia 3390 schematic file, 911 KB, saved as PDF with an uppercase extension. Only the model appears in the name, with no board revision or version.

Component datasheet for the 2SD1851 transistor, supplied as a 93.4 KB PDF and classed as a schematic in the index.

A 152 KB PDF for the 2SD1816 transistor, listed in the schematic section. The name provides the part number only.

Small 24.4 KB PDF bearing the part number 2SK2342 and nothing else. The 2SK prefix is the JIS code for an N-channel FET, which suggests a short component datasheet…

The 2SD863 transistor datasheet, a 96 KB PDF with no maker named in the file title. JIS numbering identifies 2SD devices as NPN transistors aimed at low-frequency…

A 59.6 KB PDF for the 2SC829, an NPN transistor under JIS numbering; the _E suffix in the name is not explained and may indicate a language edition or document revision.

Datasheet-style PDF, 201 KB, for the 2SB908 transistor. Japanese JIS numbering uses 2SB for PNP transistors intended for low-frequency service, which commonly means…

Compact 43.8 KB PDF covering the 2SB766 bipolar transistor, with an _E suffix in the name whose meaning is not stated.

Datasheet for the 2N2484 in PDF format, 49.8 KB, indexed alongside schematics. The 2N2484 is an NPN silicon transistor known for low-noise, high-gain operation at small…

Circuit schematic for MSI motherboard MS-7B23, labelled version 12, as a PDF inside a RAR archive of around 3.3 MB.

PDF bundle of Bose schematics, 1.53 MB in size, whose name lists no particular model, so the covered products must be confirmed by opening it.

Schematic diagram and service manual for the Lenovo A820 smartphone, in a 643 KB RAR archive. No mainboard number or revision appears in the name.

Jetway 630TCF motherboard schematic in PDF format, roughly 498 KB, with no revision number in the name.

PDF schematic for the Lenovo K4 Note smartphone, model A7010a48, about 1.5 MB in size. Phone schematics show the PMIC, charging circuit, display and camera connectors…

Generic troubleshooting PDF of 1.39 MB whose name gives no brand, model or board, so the device it covers must be checked inside the document.

Circuit schematic for the Xiaomi Mi 5 smartphone in a 1.09 MB PDF. The name provides no board revision or version details.

PDF schematic for the Samsung SM-G930F, sized at 3.71 MB. No board revision or additional variant information appears in the name.

PDF for the Samsung J5 Prime, 5.35 MB, with the brand name written in Persian in the file name.

Service schematic for the Nokia N79 slider phone, supplied as a 6.39 MB PDF document. The pages are useful for following power distribution from the battery and power…

Nokia 6650 circuit diagrams in a 474 KB PDF document, for one of the early 3G WCDMA handsets.

The 2SD1879 is documented in this 94.5 KB PDF, indexed as a schematic yet most likely a manufacturer datasheet for the part.

Here the only information in the name is 2SJ525, a Japanese-standard part code where 2SJ marks a P-channel field-effect transistor.

Datasheet for the 2SD814 NPN transistor, a 42 KB PDF whose _E suffix probably indicates an English edition.

PDF datasheet for the 2SB1288, 41.4 KB, with an E suffix in the name that most likely marks an English-language edition.

The 2SB1221 transistor gives its name to this 50.0 KB PDF, which carries an _E suffix and is filed under schematics, but is most likely the component datasheet.

PDF datasheet for the 2N5457 N-channel JFET, 111 KB, filed under schematics. The RE suffix in the name is not explained and may mark a reissued or alternate vendor copy…

Studiomaster M1000 schematic, supplied as a 576 KB PDF. Studiomaster builds professional audio gear such as mixers and amplifiers, and a diagram like this is used to…

PDF schematic whose name is only the code CDX-G1152U. That code matches the style of a Sony car audio head unit model, but the name gives no further revision or board…

LG K430DSF smartphone schematic set, compressed as a ZIP archive of 8.00 MB. The DSF suffix usually marks a dual-SIM variant.

Troubleshooting guide in PDF for the Samsung SM-A105FN, the Galaxy A10 model code, contained in a 1.29 MB RAR archive.

Schematic file named kvxa21m83, a 9.44 MB PDF with no brand stated. The code resembles a CRT television model number, but check the cover sheet to confirm the maker…

Troubleshooting guide in PDF for the Samsung G900H, a Galaxy S5 variant, with Tshoo being Samsung's abbreviation for troubleshooting.

Schematic set for the Samsung i9505, the Galaxy S4 LTE model, in a sizeable 29.0 MB ZIP.

Schematic archive for the BlackBerry 9981, the Porsche Design handset, sized 2.66 MB in RAR format. Nothing beyond the model number is given in the name.

Schematic diagram together with a service manual for the Lenovo A1000 phone, stored as a 657 KB RAR file. No board number or revision is given.

Service schematics for the Samsung SM-A217F, the Galaxy A21s, in a 9.69 MB RAR. Samsung service diagrams of this kind usually show the circuit sheets for power…

Apple iPhone 7 Plus logic board schematic in a 2.99 MB PDF. It is a key reference for tracing voltage rails, inspecting the audio codec, baseband and charging sections…

Logic block diagram for the Xiaomi Redmi 3A, with a Chinese title, supplied as a 738 KB PDF.

Schematic for the Compal LS-6098P sub-board, revision 1.0, archived in a RAR of roughly 40 KB.

Schematic for the Nokia N95, 2.63 MB PDF. The name gives no RM code or board revision, and the N95 came in several variants, so check the phone's type label against the…