17ips72 Schematic |best| -
Technical Write-Up: Lenovo Legion Y720-17IKB (Board: 17IPS72) Schematic
1. Overview
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).
- EMI input, fuse and bridge rectifier feeding a bulk +400V rail.
- PFC/primary switching stage with MOSFET(s) and driver (gate driver like ZXGD3104 or equivalent on some variants).
- Standby/regulator (SMPS or auxiliary winding) supplying MCU +5V_STBY and logic.
- Main switching for +12V/+24V rails (synchronous or discrete MOSFET/regulator stage).
- LED driver sinks (multiple MOSFETs to control LED strings) and PWM_DIM/BL_ON signals from mainboard.
- Protections: over-voltage, over-current, thermal, shorted LED detection, and soft-start circuits.
- Common discrete parts: UF5402 fast recovery diodes, MOSFETs (FDD/FQD series), TL431-type shunt regulator, multiple electrolytic and ceramic caps.
PFC Section: Check the PFC MOSFET and controller if the main filter capacitor is not reaching approximately 400V DC. 17ips72 schematic
Cross-reference this with the schematic you intend to download. A mismatch can lead to wrong voltage readings and bricked boards. EMI input, fuse and bridge rectifier feeding a
In this guide, we have provided a detailed overview of the 17IPS72 schematic diagram, including its components, connections, and signal flow. Understanding the schematic diagram can be helpful for repair technicians, engineers, and enthusiasts who want to learn more about the internal workings of the display. By following this guide, readers should be able to identify the main components, understand the signal flow, and navigate the section-by-section breakdown of the schematic diagram. PFC Section : Check the PFC MOSFET and