The IC receives a small startup voltage from the high-voltage DC line through high-value resistors.
Measure voltage across the large main capacitor. It should read around regions). If , check the fuse, line filter, and bridge rectifier. 17ips72 schematic work
This chopped DC signal enters the primary winding of the main switching transformer. The IC receives a small startup voltage from
The LED driver converts the secondary DC voltage up to the higher potential needed to drive serial strings of LEDs. check the fuse
Due to aggressive cost-engineering and thermal challenges inside thin TV chassis, the 17IPS72 suffers from repeating failure points.
To perform any substantial repair, you need two files: