SERVICE MANUAL
LBB 3310/00, 3330/00 and 3331/00 page: 2 Date of issue:
4822 861 11006 July 1998
10.3 Measuring instructions for the Delegate and Chairman unit (LBB3330/00, LBB3331/00)........................ 28
10.3.1 Supply current.............................................................................................................................................. 28
10.3.2 Internal Supply Voltages. ............................................................................................................................ 28
10.3.3 Unit presence ............................................................................................................................................... 28
10.3.4 Unit type ...................................................................................................................................................... 28
10.3.5 Microphone switch and Light-ring.............................................................................................................. 29
10.3.6 Internal signals for Delegate and Chairman units. ...................................................................................... 29
10.3.7 Internal signals only for Delegate Units...................................................................................................... 29
10.3.8 Priority switch (only for Chairman units) ................................................................................................... 31
10.4 Measuring spots with signal description......................................................................................................... 32
11. SPARE PARTS ....................................................................................................................................33
11.1 General ............................................................................................................................................................... 33
11.1.1 Ordering spare parts/ Service publications.................................................................................................. 33
11.2 Spare parts list................................................................................................................................................... 33
12. ILLUSTRATIONS.................................................................................................................................37
12.1 Block diagram CPSU......................................................................................................................................... 38
12.2 Exploded view CPSU......................................................................................................................................... 39
12.3 Lay-out CPSU .................................................................................................................................................... 40
12.4 Circuit diagram CPSU...................................................................................................................................... 41
12.5 Measuring points CPSU.................................................................................................................................... 43
12.6 Block diagram delegate unit............................................................................................................................. 44
12.7 Block diagram chairman unit........................................................................................................................... 45
12.8 Exploded view delegate/ chairman unit........................................................................................................... 46
12.9 Lay-out delegate unit......................................................................................................................................... 47
12.10 Circuit diagram delegate unit ........................................................................................................................ 49
12.11 Lay-out chairman unit .................................................................................................................................... 48
12.12 Circuit diagram chairman unit...................................................................................................................... 50
12.13 Measuring points delegate and chairman unit ............................................................................................. 51
12.14 Circuit diagram Light-ring............................................................................................................................. 52
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