L-Acoustics LA48A, Руководство пользователя

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L-ACOUSTICS LA48a Manual V1.0 27/01/2003 2
8.7 The “AC” LED............................................................................................................................. 20
8.8 DC Protection ............................................................................................................................. 20
9. MAINTENANCE............................................................................................................................... 21
9.1 Troubleshooting .......................................................................................................................... 21
10. WARRANTY.................................................................................................................................... 22
11. Technical Assistance and Service..................................................................................................... 22
LIST OF FIGURES
Figure 1: LA48a Front Panel.................................................................................................................... 6
Figure 2: LA48a Rear Panel ..................................................................................................................... 7
Figure 3: LA48a Rear Panel MLS Switches .............................................................................................. 8
Figure 4: XLR Input Connector Wiring ................................................................................................. 14
Figure 5: Balanced XLR Wiring.............................................................................................................. 14
Figure 6: ¼” TRS Plug ........................................................................................................................... 14
Figure 7: LA48a Rear Panel Detail......................................................................................................... 14
Figure 8: Unbalanced Line Connection ................................................................................................. 15
Figure 9: Balanced Line with Unbalanced Equipment ........................................................................... 15
Figure 10: Loudspeaker Connection Details ......................................................................................... 15
Figure 11: Reverse Polarity Operation for Channel B........................................................................... 16
Figure 12: Bridged Mono Cabling.......................................................................................................... 17
Figure 13: LA48a Front Panel Detail ..................................................................................................... 18
LIST OF TABLES
Table 1: Output Power Ratings and MLS Switch Settings for the LA48a................................................ 8
Table 2: MLS Switch Setting Applications................................................................................................ 9
Table 3: LA48a Current Draw @ 4 ohms............................................................................................. 12
Table 4: LA48a Maximum Output Power versus Mains Input Power .................................................. 12
Table 5: LA48a Output Power and Input Sensitivity versus MLS Switch Setting (32 dB gain).............. 13
Table 6: Maximum Recommended Length for Damping Factor > 20 ................................................. 16