This part is a kind of semiconductor called VSX-323-K.

Function of this product has AV Receiver Quick Start Guide.

Manufacturers : Pioneer

Image and pinout :

Some of the text within the PDF file :

VSX-828 -K / -S VSX-528 -K / -S VSX-423 -K / -S VSX-323-K AV Receiver Amplificateur AV AV Receiver Sintoamplificatore AV AV Receiver Receptor AV AV-ресивер Quick Start Guide Guide rapide Kurzanleitung Guida di avvio rapido Snelstartgids Guía de inicio rápido Краткое руководство пользователя Thank you for buying this Pioneer product. This Quick Start Guide includes instructions for basic connections and operations to allow simple use of the receiver. For detailed descriptions of the receiver, see the “Operating Instructions” provided on the included CD-ROM ( ). Merci pour l’achat de ce produit Pioneer. Ce guide rapide contient les instructions relatives aux raccordements et opérations de base permettant une utilisation simple de ce récepteur [ ... ]

VSX-323-K PDF Datasheet Download