The PSU produces voltage but fails to stabilize, indicating a breakdown in the backlight boost converter.
For full circuit values, you can download the Vestel 17IPS72 Service Manual from Elektrotanya or view the 17IPS72-R4 PDF on Scribd. 17ips72 R4 PDF - Scribd 17ips72 schematic
High-value resistors (1–5 MΩ) in the startup path may go open-circuit. The PSU produces voltage but fails to stabilize,
The 17IPS72 schematic consists of several key components, including: 17ips72 schematic