For the 17ips72, the eDP (Embedded DisplayPort) section includes:
A missing backlight often traces to a blown fuse (F1 on page 34) or a failed backlight driver (e.g., MP3388).
Popular repair forums and repositories include: 17ips72 schematic
⚠️ Warning: Do not download executables claiming to be “schematic viewers.” Stick to PDF files and known boardview formats (.brd, .fz, .cad).
When troubleshooting "no power" or "no boot," use this order: For the 17ips72 , the eDP (Embedded DisplayPort)
For component-level repair, you must use the .CAD or .BRD boardview file paired with the schematic. Common formats:
Boardview allows you to locate test points, resistors, and capacitors without tracing blindly. A missing backlight often traces to a blown
The 17ips72 schematic is a compact, component-dense design that balances analog front-end signal conditioning with a tightly integrated digital control section. It reads like a mixed-signal board intended for precision measurement or sensor interfacing: low-noise analog inputs, careful power-rail partitioning, and a microcontroller-driven acquisition/control domain.
The 17IPS72 is the motherboard model number for the Lenovo Legion Y720-17IKB gaming laptop. This board is based on the Intel Kaby Lake (7th Gen) platform, paired with NVIDIA Pascal-series graphics (typically GTX 1060 or 1050 Ti).
Key Specifications:
| Symptom | Likely Cause | Schematic Pages to Check | |---------|--------------|--------------------------| | No power, no LED | DC-in mosfet failure (PQ1/PQ2) | Page 60 (Charger) | | Power cycles every 2 seconds | +1.35V_DDR missing or shorted | Page 22 (Memory power) | | Turns on, no display | GPU power sequencing failure | Page 28-30 (NVVDD, FBVDDQ) | | USB-C not working | TPS65982 firmware corrupted | Page 38 (Thunderbolt) | | Keyboard backlight stuck on | IT8226G I/O fault | Page 53 (KBC) | | Fans always 100% | EC missing temperature sensor data | Page 66 (Fan tach) |