This part is a kind of semiconductor called 42WP56P.

Function of this product has Plasma Color Television SERVICE MANUAL.

Manufacturers : Toshiba

Image and pinout :

Some of the text within the PDF file :

FILE NO. 030-200507 SERVICE MANUAL Plasma Color Television 42WP56P TOSHIBA CORPORATION, 2005 Published in Japan, Sep. 2005 (YC) TABLE OF CONTENTS SERVICE SAFETY PRECAUTIONS 3 SERVICE MODE .. 5 LOCATION OF CONTROLS ... 10 LAYOUT OF MAJOR BOARDS . [ ... ]

42WP56P PDF Datasheet Download