This part is a kind of semiconductor called TDA8174AW.

Function of this product has VERTICAL DEFLECTION CIRCUIT.

Manufacturers : ST Microelectronics

Image and pinout :

Some of the text within the PDF file :

TDA8174A TDA8174AW VERTICAL DEFLECTION CIRCUIT . . . . . . . RAMP GENERATOR INDEPENDENT AMPLITUDE ADJUSTEMENT BUFFER STAGE POWER AMPLIFIER FLYBACK GENERATOR THERMAL PROTECTION INTERNAL REFERENCE VOLTAGE DECOUPLING MULTIWATT11 (Plastic Package) ORDER CODE : TDA8174A DESCRIPTION TDA8174Aand TDA8174AWare a monolithic integrated circuits. It is a full performance and very efficient vertical deflection circuit intended for direct drive of a TV picture tube in Color and B & W television as well as in Monitor and Data displays. PIN CONNECTIONS (top view) CLIPWATT11 (Plastic Package) ORDER CODE :TDA8174AW 11 10 9 8 7 6 5 4 3 2 1 FLYBACK GENERATOR VS INVERTING INPUT BUFFER OUTPUT RAMP GENERATOR GROUND VOLTAGE REF DECOUPLING HEIGHT ADJUSTMENT TRIGGER INPUT OUTPUT STAGE V S POWER OUTPUT 8174A- [ ... ]

TDA8174AW PDF Datasheet Download