What to do if there is no sound from loudspeakers of Bosch Conference System?
If you are experiencing a temporary lack of microphone reaction, and no sound or distorted sound from the unit loudspeakers in your Bosch Conference System, it might be due to trunk-line overload. Try reducing the load on the trunk-lines by decreasing the number of units or shortening the length of the trunk cables.
Why is there no sound via delegate/chairman loudspeakers on my Bosch CCS 900 Ultro Conference System?
If there is no sound via delegate or chairman loudspeakers on your Bosch Conference System, check if the insertion switch at the rear of the CU is in position "1". Also, verify that the volume control for delegate/chairman loudspeakers on the CU is not fully counter-clockwise. Note that units with an active microphone or connected headphones have their loudspeakers switched off.
Why am I getting acoustic feedback with my Bosch CCS 900 Ultro?
Acoustic feedback in the Bosch Conference System can occur if the loudspeaker volume is too high. To resolve this, reduce the gain using the volume control for Delegate/Chairman Unit loudspeakers on the CU. Also, if available, switch on Digital Acoustic Feedback Suppression. Ensure there's enough distance between units to prevent microphone to loudspeaker interference. If you are using open headphones, increase the distance between the headphone and microphone, or disconnect the headphones when not in use.
How to troubleshoot a Bosch Conference System when part of it is not working?
If part of your Bosch Conference System isn't working, it could be due to interrupted trunk-line cabling. Check the trunk-line cabling connections between the units and the CU. You can also use the test function on the CU.
What to do if the hourglass flashes very fast on Bosch CCS 900 Ultro Conference System?
If the hourglass icon on your Bosch Conference System is flashing very fast, it indicates a problem with the SD card. The SD card may be full, so check it and remove files if necessary. Alternatively, use a PC to format the card using FAT or FAT32, as NTFS is incompatible. Also, the SD card might be write-protected; remove it and disable the write protection.
Why does the hourglass flash for a long time after inserting the SD card in my Bosch CCS 900 Ultro Conference System?
If the hourglass on your Bosch Conference System flashes for a long time after inserting the SD card, it could mean the SD card is almost full. Try removing old files and recordings. You might also need to format the SD card. The SD card could also be too slow, so consider using a faster SD card.
What to do if recorded files are missing on SD card from Bosch CCS 900 Ultro?
If recorded files are missing on the SD card of your Bosch Conference System, it's possible the SD card was removed during recording. Always stop recording before removing the SD card. Also, select SD card exchange before removing the SD card.
Why is the user display blank on my Bosch CCS 900 Ultro?
If the user display on your Bosch Conference System is blank, it might be because the USB cable was connected to the CU and PC during CU power up, while the PC was switched off. Make sure the USB cable is not connected during CU power up. Also, ensure the PC is fully operational before connecting the USB cable.
Explains the meaning of warning, caution, and notice symbols used in the manual.
Guides on connecting delegate and chairman units to the control unit using trunk connectors and extension cables.
Explains how to expand the system capacity beyond the standard limit by adding more control units.
Details how to use cable locking clamps to secure extension cables and prevent accidental disconnection.
Instructions for connecting an external microphone to the control unit's microphone input and adjusting sensitivity.
Explains how to connect a wireless microphone to the external microphone input via an attenuator.
Details how to connect a recorder device to the control unit for recording and playback of discussions.
Guides on connecting external audio equipment like PA systems to the line input/output of the control unit.
Instructions for connecting a telephone coupler for remote participant communication and necessary precautions.
Explains how to connect an external equalizer to the control unit for speech quality improvement.
Provides instructions and safety warnings for connecting the control unit to the mains power supply.
Details how to connect the control unit to a PC via USB for data download and includes important cautions.
Describes how to perform a connection test using the test mode on the control unit.
Explains how to activate and deactivate the delegate microphone using its button, depending on the CU mode switch.
Explains the 'Possible-To-Speak' indication via LED and how it relates to microphone activation and system limits.
Describes how chairman microphones are always activated when the button is pressed, independent of other modes.
Details the function of the chairman's priority button, including overruling delegate microphones and chime tone activation.
Explains how to set priority mode options like chime and microphone muting behavior in the chairman unit.
Guides on selecting the maximum number of active delegate microphones in open mode.
Explains open mode where microphones automatically switch off after a period of silence.
Describes override mode where pressing a delegate microphone button overrides the current speaker, allowing only one active delegate mic.
Details chairman only mode where only chairman units can be activated, and delegates cannot switch on their microphones.
Instructions for adjusting the loudspeaker volume for delegate and chairman units to achieve maximum level without feedback.
Explains adjusting loudspeaker volume while using the Digital Acoustic Feedback Suppressor (DAFS) switch.
Guides on using the monitoring volume control for built-in loudspeaker or headphones to adjust discussion volume.
Instructions for adjusting headphone volume using the rotary control and how headphone insertion mutes the loudspeaker.
Introduces the built-in MP3 recorder, its capabilities, and maintenance advice.
Provides an overview of the MP3 recorder's user display and control buttons.
Describes the user display of the MP3 recorder, including soft buttons, date, time, and icons.
Explains the different operating modes for the MP3 recorder (Record, Pre-listen, Playback, Set-up) and their icons.
Details the start-up screen of the MP3 recorder, showing the recorder name, software version, and record screen overview.
Provides a table of icons used for navigating the MP3 recorder's set-up screens and their functions.
Instructions on how to select and delete audio files from the MP3 recorder, including confirmation steps.
Guides on setting the correct date and time for the MP3 recorder, emphasizing the sequence of operations.
Explains how to select the desired bit rate for audio recording from the available options.
Discusses the continuous recording option and potential issues when using many delegate units.
Guides on choosing between recording to an SD card or internal memory for the MP3 recorder.
Lists and explains the icons displayed during recording on the MP3 recorder, such as Record, Pause, Stop, etc.
Step-by-step instructions on how to start, pause, stop, and create new files during an MP3 recording session.
Details the procedure for safely exchanging SD cards during recording to avoid data loss and manage storage.
Explains the icons used for pre-listening and playback functions of the MP3 recorder, including navigation controls.
Guides on how to use the pre-listen and playback modes, including controlling playback and switching between modes.
Lists electrical and electro-acoustical specifications for the system, covering control units and combined units.
Lists electrical and electro-acoustical specifications for the Control Unit (CU), including voltage, current, sample frequency, and bit rates.
Provides electrical and electro-acoustical characteristics for the combined delegate and chairman units.
Details the mechanical specifications for the Control and Power Supply Unit, including mounting, dimensions, and weight.
Lists the mechanical specifications for the Delegate and Chairman Units, including dimensions, height, and weight.
Outlines the environmental conditions for system operation, storage, and transport, including temperature, humidity, and air pressure.
Lists the available equipment and accessories for the CCS 900 Ultro system, such as mounting sets and cables.
Provides detailed pin configurations for various connectors on the CCS 900 Ultro system.
Details the pin assignments for the Trunk Connections (A) on the control unit.
Specifies the pin configuration for the external microphone input (XLR).
Outlines the pin assignments for the CINCH connector.
Details the pin configuration for the mains power connector.
Specifies the pin configuration for the 3.5mm headphone jack plug.
Presents schematic diagrams showing the connector pin connections for LBB 3316/00 cables.
Provides instructions on how to mount the control unit and delegate/chairman units in different ways (rack, table).
Offers detailed information and drawings for creating a bracket to flush mount the control unit into a table.
General| Brand | Bosch |
|---|---|
| Model | CCS 900 Ultro |
| Category | Conference System |
| Language | English |
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