This post explains for the semiconductor AN15525.
The Part Number is AN15525. The Package is TO-220-7 Pin Type.
The function of this semiconductor is Vertical Amp CRT Based TV Receiver.
Manufacturer: Panasonic, Matsushita
The IC is a monolithic integrated circuit in HeptawattTM package. It is a high efficiency power booster for direct driving of vertical windings of TV yokes. It is intended for use in color and black & white television as well as in monitors and displays.
LA78040, LA78141, UTP78040, LA78041(Sanyo), STV9302(max35v), STV9325, TDA9302(philips), AN5525, AN15526A, la78045 Pinout
1. Power Amplifier
2. Flyback Generator
3. Thermal Protection