The is a widely used integrated power supply (PSU) and LED driver board found in numerous budget-friendly LED TVs from brands like Toshiba, JVC, Hitachi, and Philips. Understanding its schematic is essential for technicians dealing with common "no power" or "no backlight" symptoms. 1. Circuit Overview and Architecture
Lenovo does publicly release schematics, but repair communities share them for board-level repair : 17ips72 schematic work
Pins 23–24 connect to a low-ohm (0.1Ω to 0.5Ω), high-wattage resistor to GND. In , this resistor is a common failure point. Measure its resistance – if open, the IC perceives overcurrent and shuts down. Vestel 17IPS72 The is a widely used integrated