If you are repairing one, you can find detailed technical diagrams and service manuals on enthusiast and professional databases: Elektrotanya
Inspect the optocouplers and TL431 shunt regulator responsible for voltage feedback. 💡 Sound but No Picture 17ips72 schematic
Test the filter capacitors on the secondary side. Vestel boards are known for using capacitors pushed to their exact voltage limits, leading to premature bulging and failure. If you are repairing one, you can find
The 17ips72 boardview often lists components as: If you are repairing one
Bad capacitors are frequent, even on newer boards, leading to low voltage or flickering.