ViewSonic VS10791-1W Service Manual page 19

TPA3003D2 (U601): The TPA3003D2 is a audio amplifier IC,3-W efficient, driving
speakers as low as 8 , range of gain from -40dB to 36 dB. The function of
each pin and the inside circuit diagram are as follows:
Circuit Diagram
ViewSonic Corporation
Confidential - Do Not Copy
16
VG720-1