2INDEX1. IMPORTANT REMARK .................................................................................... 32. IMPORTANT SAFETY INSTRUCTIONS .............................................................. 33. IMPORTANT NOTE ......................................................................................... 54. INTRODUCTION ............................................................................................. 54.1 Main features.................................................................................................. 55. INSTALLATION ............................................................................................... 65.1 Placement, mounting, cooling ........................................................................ 65.2 Mains connection ............................................................................................ 65.3 Input signal connections ................................................................................. 65.4 Power saving mode ......................................................................................... 75.5 Limiter circuit .................................................................................................. 75.6 Output connections ......................................................................................... 76. OPERATION AND USAGE ................................................................................ 76.1 Start up ........................................................................................................... 76.2 Input attenuators ............................................................................................ 86.3 Indicators ........................................................................................................ 87. CLEANING...................................................................................................... 88. FUNCTION DIAGRAM ..................................................................................... 99. FUNCTION LIST .............................................................................................. 910. TECHNICAL CHARACTERISTICS...................................................................... 1011. BLOCK DIAGRAM ......................................................................................... 11