Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Equipment defective

The instructions are well written and easily understood. Unfortunately the unit does not work at all. The menu on the Dav500 does not recognize the Sony WAHTSD1 Wireless transmitter when it is plugged into the recepticle in the back.This is particularly upsetting after spending $3,000 for the Bravia 46 inch LCD HDTV and $400 for the DAV500 home entertainment unit.