Contents
8.4 Common problems . . . . . . . . . . . . . . . . . . . . . . 68 8.4.1 Communications port error . . . . . . . . . . . 68 8.4.2 No audio in zone . . . . . . . . . . . . . . . . . . . . 68 8.4.3 User interface keypads do not
operate correctly . . . . . . . . . . . . . . . . . 69 8.4.4 Bad sound in a zone . . . . . . . . . . . . . . . . . 69 8.4.5 Auto Volume does not calibrate . . . . . . . . 70
8.5 Customer support . . . . . . . . . . . . . . . . . . . . . . . 70 8.5.1 Technical assistance . . . . . . . . . . . . . . . . 70 8.5.2 Reporting software bugs and issues . . . . 70
9.0 Restoring E4 Microcontroller Code . . . . . . . . . . . . . 72
10.0 Technical Specifications . . . . . . . . . . . . . . . . . . . . 74 10.1 Power amplifier . . . . . . . . . . . . . . . . . . . . . . . . 74 10.2 Digital signal processing . . . . . . . . . . . . . . . . . 74 10.3 Front panel indicators and control
connections . . . . . . . . . . . . . . . . . . . . . . . . . . 74 10.4 Rear panel inputs, outputs, and controls . . . . 74 10.5 E4 system serial data commands . . . . . . . . . . 74 10.6 FreeSpace® Installer™ Design File
Compatibility . . . . . . . . . . . . . . . . . . . . . . . . . 76
