Datasheet covering the 2N3055, the classic NPN power transistor in a TO-3 metal case, provided as a 171 KB PDF.

Under the Japanese JIS scheme the 2SB726 is a PNP bipolar transistor, so this 39.6 KB PDF, though catalogued as a schematic, should be its datasheet; the _E suffix…

Part documentation for the 2SB1287 in a 63.5 KB PDF; the 1-2 in the name probably marks pages one and two of the sheet. No device or board details are included.

Datasheet PDF for the 2SB1274, 34.4 KB in size and likely a concise sheet. The name offers only the part number.

A 41.5 KB PDF for the 2SB970 transistor, with an _E suffix the file name leaves unexplained.

RAR archive of about 4.8 MB identified only as Apple iPhone 7 material. No board number or file type is spelled out, so inspect the contents first; such archives…

Huawei P30 schematic collection packed in a 1.32 MB zip; the name gives no board number or revision.

Xiaomi Redmi 9C schematic in PDF, about 2.6 MB. The diagrams let a technician follow battery and charging circuits, PMIC outputs, display and backlight lines, and audio…

PDF schematic for the Samsung Galaxy A50, model SM-A505F, in a 6.92 MB RAR archive, the largest of this Galaxy A series set. The name gives no revision.

Gigabyte GA-Z170X-Gaming 3 schematic covering board revision 1.01, in PDF format inside a RAR archive of about 1.23 MB.

Regulated power supply for a preamplifier, drawn in a 601 KB PDF schematic with a source tag in the name.

Schematics for the Nokia X2-00 mobile phone, type RM-618, version 1.0, in a 3.77 MB RAR archive.

PDF schematic of roughly 943 KB labelled TAS6514AL, a name that matches the Texas Instruments TAS series of automotive class-D audio amplifier ICs; no product, board…

Circuit diagrams for the Xiaomi Redmi 7, codename onclite, provided as a 2.58 MB ZIP archive. Though catalogued as firmware, the name marks it as a schematic.

Compact 478 KB RAR archive labelled LS-4905P, revision PR10, with a 1207c date code. The name does not say whether it holds a schematic, boardview or both, or which…

Lenovo S560 mobile phone repair pack holding a schematic diagram and a service manual, compressed into a small 238 KB RAR.

Circuit diagram and service manual for the Lenovo P700I, compressed into a 600 KB RAR archive.

Schematic diagrams for the original Xiaomi Mi 2 phone, compressed into a 1.87 MB ZIP. The name lists no board number or revision and does not mention the later Mi 2S, so…

Troubleshooting guide for the Motorola Moto E5 and Moto E5 Play, a 1.65 MB PDF. Motorola guides of this kind usually give fault-finding flows for no power, charging…

Boardview for the ASUS ThunderFX, revision 1.01D, a compact 16.8 KB RAR archive. The ThunderFX is an ASUS audio add-on device, so the layout covers a small board rather…

Repair documentation package for the iPhone 6 Plus, delivered as a 2.10 MB RAR whose contents the name does not list.

Archive whose name points to service manual material for the Samsung Galaxy S3 variant i535, the Verizon version of the phone.

Schematic of the main logic board for the iPhone 8 Plus, identified in the name by its D21 code, in a 1.91 MB PDF. MLB stands for main logic board.

Circuit schematic for the Xiaomi Mi 5 smartphone, the Chinese file name reading Xiaomi 5 circuit schematic, in an 857 KB PDF.

Motherboard schematic for a G31M-S2C board, with R11 most likely meaning revision 1.1, supplied as a PDF.

PDF schematic for the Samsung Galaxy SM-A720F, 3.58 MB, describing the handset's main board design.

Circuit diagram for the Samsung Galaxy Mega, model GT-I9200, supplied as a 5.99 MB PDF. The name gives no board revision.

Schematic for the Samsung E1085L, a basic feature phone, in an 852 KB PDF file. Only the model appears in the name, without a board revision.

Schematics for the Nokia N8 in a 6.23 MB PDF file. The name lists no hardware revision, so compare the board version on the PCB before trusting component numbering.

Schematic package for the Nokia 6600 smartphone, presented as a 3.25 MB PDF. The diagrams cover the circuitry that a repair technician needs for board-level work: power…

Schematic documentation for the Nokia N78, provided as a 679 KB PDF. The drawings help a repair technician trace the battery and charging lines, power management…

Nokia 5120 schematic diagrams in a 432 KB PDF. Only the model name is provided, with no board number or revision.

Troubleshooting section of the service documentation for the Samsung GT-S7580 Galaxy Trend Plus, supplied as a 3.08 MB PDF; TSHOO is Samsung shorthand for…

Service manual in PDF form for the Samsung GT-C3510 mobile phone, about 4.71 MB. Samsung service manuals of this era usually combine disassembly steps, exploded views…

Component datasheet covering the IRFP240 MOSFET, supplied as a 104 KB PDF readable in any PDF viewer.

Datasheet PDF for the BD234, only 49.2 KB and indexed as a schematic. The BD234 is a medium-power PNP transistor in a plastic package, commonly paired with a…

Manufacturer datasheet for the BD139 transistor, with the name indicating the ST (STMicroelectronics) version, supplied as a 152 KB PDF.

The 2SD1908 transistor is documented in this 85.8 KB PDF, which the index files as a schematic, although a JIS part number like this normally indicates a datasheet.

Compressed RAR package, 57.3 KB, containing the iPhone 5C boardview in BVR format. Unpack it and load the file in a viewer that handles BVR to browse component placement…

Samsung SM-A11 schematic section for the headset (handsfree) jack, provided as a 4.32 MB PDF.