Filed under schematics at 212 KB, the PDF named 20ETF-S gives no device, board or revision details.

Small 65.7 KB PDF for the Apple iPad 2 that, judging by the name, contains layout information rather than full circuit diagrams.

Apple iPhone 7 Plus schematic in PDF format, roughly 1.76 MB. The file name gives no logic board number or revision, so verify against the board before trusting sheet…

Full schematic set for the Apple iPad mini 2 logic board in a compact 879 KB PDF. Technicians rely on it to trace power rails, follow signal paths between the SoC, PMU…

Schematic in PDF for the LS-G202P board used in the Lenovo IdeaPad 130-15AST, marked R10 with a 180308 date stamp.

PDF titled troubleshooting, 1.56 MB, with no device, brand or model named in the file name, so its scope can only be known by opening it.

Troubleshooting guide in PDF for the Samsung Galaxy SM-A520F smartphone, chapter 7 of the service manual set, 1.93 MB.

Troubleshooting chapter 7 in PDF from the service documentation for the Samsung Galaxy SM-A510FD, the dual-SIM variant, 1.25 MB.

Schematic for the Apple iPad Air 2 main logic board, a 10.6 MB PDF that originated from a Vietnamese repair site.

Schematic for the Apple iPad Air, in a PDF of about 1 MB; the file name does not give a logic board number, revision or cellular variant.

Schematic in a compact 464 KB PDF, named PA-1650-56LC, a code that appears to be a power adapter model number; the file name gives no brand or further details.

PDF schematic of a power supply based on the SG6741 PWM controller, with the code 610 and LTA809FA in the name, the latter likely a LiteOn controller marking used in…

PDF schematic of a LiteOn PA-1360-2 adapter, with no output rating given in this file name; a companion document lists it as 12 V 3 A, 36 W.

Schematic for the LiteOn PA-1121-04 adapter; the trailing nev is unclear and may mark a newer version.

NXP document with the identifier UM10391, provided as a PDF of about 1 MB and indexed here under schematics.

Power adapter schematic in PDF format, labelled only app177, which may be an application note or design reference number.

LiteOn PA-1900-05 notebook power adapter schematic in PDF format. LiteOn manufactures OEM chargers for many laptop brands, and the PA-1900 family is generally a 90 W…

PDF guide on replacing an SG6741 PWM controller with an SG6841 in a Lenovo IP adapter, likely IdeaPad, though the name abbreviates it.

Diode-value reference set covering the Apple iPhone 11 Pro and 11 Pro Max, delivered as a 1.43 MB ZIP archive.

Toshiba PA-1750-09 adapter schematic, built around the LTA601N controller, noted as equivalent to the TEA1751T; the Russian phrase means on the chip.

PDF schematic, 1.15 MB, labelled PS-5161-1D1S, a code that looks like a power-supply unit model number.

Apple iPad 2 schematic in PDF format, roughly 637 KB, with no board number or revision stated in the file name.

PDF schematic of a power supply adapter, identified in the name only by the code tsm103_394, which likely refers to a controller or design number.

Schematic in PDF form for a Dell power adapter, with no model or wattage given in the file name. At 228 KB it likely covers one charger design.

NXP user manual UM10403 schematic of a 90 W reference adapter design using the TEA1752T and TEA1791T.

Schematic of the ASUS adapter model SADP-65KB B with a 19 V 3.42 A output, a 65 W notebook charger.

Circuit diagram of the Toshiba PA-1750-09 power adapter, built around an LTA601N controller, noted in the name as a TEA1751T equivalent; the Russian phrase means on the…

PDF schematic of the ASUS ADP-90SB BB power adapter, rated 19 V at 4.74 A, which gives about 90 W.

LiteOn schematic for Dell adapters PA-1900-28D and PA-1900-27D of the PA-3E series, revision B, with a 19.5 V 4.62 A output, which is 90 W.