Bosch CCS800 - Page 5

CCS800 | Service manual | Table of contents en | 3
Bosch Security Systems | 2005-01| 3922 880 21112
7.3.3 Phantom supply of the external symmetrical microphone input .................................. 23
7.3.4 Supply current measurement. ........................................................................................... 23
7.3.5 Audio contribution to loudspeaker measurement........................................................... 24
7.3.6 Audio contribution to audio distribution measurement ................................................. 25
7.3.7 External microphone input to line out measurement..................................................... 26
7.3.8 Telephone-out, Line-out and Insertion-out measurement.............................................. 27
7.3.9 LINE-IN to REC-OUT Circuit measurement................................................................. 28
7.3.10 Recorder-in to Line-out measurement ........................................................................... 29
7.3.11 TELEPHONE-IN to LINE-OUT Circuit measurement .............................................. 30
7.3.12 Control line test with mode switch (A)........................................................................... 31
7.3.13 Control line test with mode switch (B)........................................................................... 32
7.3.14 System volume control test.............................................................................................. 33
7.3.15 AUDIO CONTROL IN to LINE-OUT via AFS circuit of CPSU measurement ..... 34
7.3.16 Functional AFS test of the LBB 3310/10 ....................................................................... 35
7.4 Measuring spots CPSU board with signal description................................................................. 36
7.5 Measuring instructions for the Delegate and Chairman unit...................................................... 37
7.5.1 Supply current .................................................................................................................... 37
7.5.2 Internal supply voltages..................................................................................................... 37
7.5.3 Unit presence...................................................................................................................... 37
7.5.4 Unit type.............................................................................................................................. 37
7.5.5 Microphone switch and light-ring..................................................................................... 37
7.5.6 Internal signals for Delegate and Chairman units........................................................... 37
7.5.7 Internal signals only for Delegate Units........................................................................... 38
7.5.8 Chairman Only mode........................................................................................................ 39
7.6 Measuring spots Delegate and Chairman board with signal description .................................. 40
8 New microphone assembly on an old delegate-/ chairman unit................................................................. 41
8.1 Description....................................................................................................................................... 41
8.2 Implementation ............................................................................................................................... 41
8.3 Electrical modifications................................................................................................................... 41
8.3.1 Service microphone assemblies identification................................................................. 41
8.4 Field changes of components on the main board ........................................................................ 42
8.4.1 Delegate- and chairman unit component values............................................................. 42
8.4.2 Diagram and board layout of HW 01-02......................................................................... 42
9 Replacement of the microphone capsule....................................................................................................... 43
9.1 Preparation....................................................................................................................................... 43
9.2 Disassembly ..................................................................................................................................... 43
9.3 Re-assembly..................................................................................................................................... 43
10 Trunk cable interconnections.......................................................................................................................... 44
10.1 Pin numbers delegate- and chairman extension trunk cable...................................................... 44
10.2 LBB 3316/00 – CCS800 extension cable and connectors........................................................... 45
11 Mounting instruction new CPSU board in old LBB 3310/00...................................................................... 46
11.1 Needed tools and parts ................................................................................................................... 46
11.2 Drilling instructions......................................................................................................................... 46
12 Spare parts......................................................................................................................................................... 47
12.1.1 Ordering spare parts ........................................................................................................ 47
12.2 CPSU spare parts list....................................................................................................................... 47
12.2.1 LBB 3310/x0 CPSU – Mechanical spare parts ............................................................. 47
12.2.2 LBB 3310/00 CPSU – Printed board assemblies.......................................................... 47
12.2.3 LBB 3310/10 CPSU – Printed board assemblies.......................................................... 47
12.2.4 LBB 3310/x0 CPSU – Printed board spare parts.......................................................... 48
12.3 Delegate- and chairman unit spare parts list................................................................................. 48
12.3.1 LBB 3330/x0 Delegate unit – Mechanical spare parts
LBB 3331/x0 Chairman unit – Mechanical spare parts ............................................... 48
12.3.2 LBB 3330/x0 Delegate unit – Service assemblies
LBB 3331/x0 Chairman unit – Service assemblies....................................................... 49
12.3.3 LBB 3330/x0 Delegate unit – Printed boards spare parts
LBB 3331/x0 Chairman unit– Printed boards spare parts ........................................... 49
12.4 Microphone head spare parts......................................................................................................... 49