PDF schematic titled simply 4kw, most likely a high-power audio amplifier rated around 4 kilowatts.

Schematic PDF for the LG 32LG30 LCD television, 3.04 MB. The name gives the model only, without chassis or board number.

Schematic PDF for the Samsung SM-E700H, the Galaxy E7 dual-SIM model. At 12.8 MB it likely contains detailed circuit pages for power management, charging, display…

BA1404 reference PDF, 140 KB, for the ROHM FM stereo transmitter IC often used in small hobby and consumer FM transmitter circuits.

Datasheet for the 2SD2131 transistor, provided as a 240 KB PDF in the schematic section.

PDF sheet, 41.6 KB, on the 2SB1319 transistor, indexed as a schematic. The E suffix in the name likely refers to an English edition but is not explained.

Compact 77.2 KB PDF covering the 2SB893 transistor. In JIS numbering the 2SB prefix identifies PNP transistors for low-frequency circuits, such as audio amplifiers and…

Troubleshooting guide in PDF for the Samsung SM-A105FN (Galaxy A10), where Tshoo is read as troubleshooting and 7 likely marks a service manual chapter.

Tone control circuit intended for a 2.1 channel audio system, in a 159 KB PDF. It shows the bass and treble adjustment network that sits between the source or preamp and…

Speaker protection circuit for a 2.1 audio setup, a user-drawn design in a 139 KB PDF. Such boards normally delay relay engagement at power-up to stop thumps and…

Repair archive for the Apple iPhone 7 at 50.1 MB, likely bundling schematics, boardview files and related references, though the name does not list them.

Nokia 6200 schematic diagrams provided as a 946 KB PDF. Only the model name is given, with no board code or revision, so compare the PCB markings against the sheets.

CD4066 reference document, a 174 KB PDF for the CMOS quad bilateral analog switch. Listed as a schematic, though it is most likely the datasheet with pin diagram…

Datasheet PDF, 137 KB, for the 2SD1841, part of the Japanese 2SD range of NPN bipolar transistors, catalogued here under schematics.

English-language datasheet, as the _E suffix suggests, for the 2SD2260 NPN bipolar transistor, supplied as a 45.3 KB PDF in the schematic section.

Part documentation for the 2SD1876 in PDF form, 89.6 KB, categorised under schematics. Only the part number is given in the name.

A 94.8 KB PDF documenting the 2SD895, indexed as a schematic though the name names a single transistor.

The 2SB1457 is covered by this 192 KB PDF, the largest of the group, filed as a schematic but named like a standard component datasheet.

Compact 39.7 KB PDF on the 2SB1370, indexed as a schematic though it documents one discrete device.

Technical Mriganka 2.1 amplifier design using the TDA7379 and TDA7377 power amplifier ICs, a 206 KB PDF.

Service schematic in PDF form for the Samsung SM-E500H, the Galaxy E5 smartphone, 7.24 MB.

Full schematic for the Apple iPhone X in PDF format, 14.3 MB. It covers the logic board circuitry including power management, charging, baseband, NAND, display, camera…

Circuit schematic for the classic Nokia 6210 handset, saved as a 779 KB PDF document. For older phones like this, diagrams are especially useful because replacement…

Schematic for the Nokia 6280 slider phone, provided as a 987 KB PDF file. The pages let a technician follow supply voltages out of the power management chip, check the…

The 2SK657 datasheet, filed as a schematic, is a 35.7 KB PDF; the 2SK prefix identifies an N-channel FET in the Japanese semiconductor numbering scheme.

This 89.0 KB PDF carries no information except the code 2SJ233. JIS numbering assigns 2SJ to P-channel FETs, so the content is most likely that transistor's datasheet…

The 2SD1061 is the subject of this 102 KB PDF, placed in the schematic section though it reads as a part datasheet.

A 44 KB PDF for the 2SB1473, with the _E suffix probably indicating an English version, catalogued as a schematic but by its name a component datasheet.

Compact 41.4 KB PDF for the 2SB987, with an _E suffix not explained by the name, perhaps an edition or language marker.

Datasheet for the 2SK1058 transistor from Hitachi Semiconductor, a small PDF of about 40 KB.

Schematic in PDF form for the Samsung Galaxy A50, model SM-A505F. The name states no board revision.

Archive for the IO daughterboard of the Dell Vostro V3700, from the Wistron Winery DW70 design. The name shows it covers the IO board rather than the main logic board.

Schematic diagram set for the Xiaomi Mi 4C smartphone in a sizeable 45.7 MB PDF, which suggests high-resolution or numerous pages.

Samsung SM-G930F schematic in PDF format, 3.71 MB. Service schematics of this kind map the PMIC outputs, charger circuitry, display connector, camera, audio and radio…

Datasheet for the CD4066B quad bilateral analog switch from the CMOS 4000 series. It describes the four independently controlled switches, on-resistance versus supply…

Circuit diagrams for the Nokia 7610 Symbian camera phone, stored as a 1.31 MB PDF. The name gives only the model, without a board number or revision, so check the main…

Nokia 6230 schematic set in PDF format, 1.34 MB. Only the model is indicated; there is no board number or revision in the name, so check the main board's printed code…

Datasheet for the DAC0800, an 8-bit high-speed current-output digital-to-analog converter originally from National Semiconductor.

The 2SD1724 part number is all the name gives, and the 145 KB PDF is tagged as a schematic, though a file named this way is normally a transistor datasheet.

This datasheet PDF of 179 KB covers the 2SD2480 transistor and contains no further detail in its name.