Bogen CAM8PRO Installation And Use Manual
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- Installation and use manual (32 pages) ,
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Summary of Contents for Bogen CAM8PRO
- Page 1 CAM8PRO Mixer Installation and Use Manual © 2011 Bogen Communications, Inc. All rights reserved. 54-2034-01D 1207...
- Page 2 Have all internal servicing performed by a qualified technician. The warranty will become void if Important Safety Information repairs are made by other than the Bogen Service Always follow these basic safety precautions when Department or an authorized service agency.
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Page 3: Table Of Contents
Contents INTRODUCTION ..............................4 Safety Instructions ............................5 QUICK START ................................6 PANEL DESCRIPTIONS............................7-9 Front Panel ..............................7 Rear Panel..............................8 Helpful Hints ..............................9 INSTALLATION ..............................10-11 OPERATION ..............................12-18 Troubleshooting Gain Structure ........................13 Recommended Input Wiring Methods ......................14 Fine Tuning ..............................15 Compressor/Limiter ............................16 Special Features Activation ........................17 Jumper Options ............................18 TROUBLESHOOTING TIPS ..........................19 GLOSSARY ................................20 TECHNICAL INFORMATION ..........................21-22... -
Page 4: Introduction
This manual covers installation of the CAM8PRO. It was manufactured to ensure the highest quality audio signal production and control, while still incorporating simple-to-use features. This manual is designed to familiarize you with the features of your new Bogen CAM8PRO mixer and to guide you through its installation and operation. -
Page 5: Safety Instructions
Safety Instructions Bogenʼs CAM8PRO mixer is electrical equipment, so take all the precautions usually taken when installing and using electrical equipment (see inside front cover). To protect both the users and the equipment, pay particular attention to: • Grounding - Make sure both the mixer and the devices connected to it are properly grounded. -
Page 6: Quick Start
Quick Start Unpack and Connect (See page 10 for more details). A. Check mixer for shipping damage. Rack Mounting: To mount the CAM8PRO to a 19” rack, lift the unit up to the front of the rack and secure it to the front of the rack with the necessary screws (not included with this unit). -
Page 7: Panel Descriptions
Front Panel Descriptions CAM8PRO Threshold Ratio -6 -3 0 +3 Limit Headphone Power MAIN 11 12 CAM8PRO Front Panel 1. Main/Auxiliary Bus Selector (one per channel) A 4-position switch which selects destination of channel input. Input can be routed to: a) the main bus (M-up, A-down); b) the auxiliary bus (M-down, A-up-shown at right);... -
Page 8: Rear Panel
Rear Panel Descriptions 17VCT Trim Trim Trim Trim Trim Trim Trim Trim AUX OUT MAIN AUX IN Ground Line Line Line Line Line Line Line Line -50dB - - - - + + + + + + + + - - - - + + + + - - - - + + + +... -
Page 9: Helpful Hints
Protect the mixer from electrical damage by disconnecting it from the power source whenever it will be unused for a week or longer. The Bogen mixer is easy to install and adjust. The only tools needed are: 1. Slotted screwdriver 2. -
Page 10: Installation
Installation Note: Take the mixer out of the box and inspect for shipping damage. If there is obvious physical damage to the outside of the mixer, contact the supplier of the mixer before you begin installation. Rack Mounting: To mount the CAM8PRO to a 19” rack, lift the unit up to the front of the rack and secure it to the front of the rack with the necessary screws (not included with this unit). - Page 11 C. Connect Output: Make a connection between Main Bus Output Terminals (3) and an input jack of an amplifier. Press Main Output Microphone/Line Switch (2) to appropri- ate position: “in” for line-level output (0 dBμ) or “out” for mic-level (-50 dBμ) output. AUX OUT MAIN -50dB...
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Page 12: Operation
Operation The primary goal when establishing the gain settings of the mixers is to have each channel operating at the maximum gain without clipping, while leaving adequate headroom on the volume control knob. The channel Input Gain/Trim Control (1) on the rear panel of the mixers directly controls the microphone pre-amplifier gain available at each channel. -
Page 13: Troubleshooting Gain Structure
Troubleshooting Gain Structure If the procedure followed to this point does not give satisfactory results, follow the appro- priate adjustment sequence below: If channel clipping occurs If the signal is clipping or producing audible distortion, the gain is too high. Reduce the Input Gain/Trim Control (rear panel) by turning it counterclockwise until clipping does not occur. -
Page 14: Recommended Input Wiring Methods
Recommended Input Wiring Methods These are the best ways to connect sources to the mixer. The mixer input is always balanced. From the drawings below choose the wiring method for your input device (either balanced or unbalanced). Balanced Source to Balanced Input - Method 1 (Normal) Shown below is the normal wiring method for a balanced source device. -
Page 15: Fine Tuning
Fine Tuning Low Cut Switch To remove excessive bass from an individual channel, press the Low Cut Switch (1) for that channel. This feature helps eliminate low frequency noise (signals of 100 Hz and below, such as background rumble from ventilation systems, etc.) and is used primarily with mic-level input. -
Page 16: Compressor/Limiter
Compressor/Limiter The Compressor/Limiter (1) is a dynamic range controller that can be used to compen- sate for signals that may sound unnatural or cause audible distortion. This is indicated by the LED Bar Graph Output Meter (3) occasionally exceeding +12 VU (red). Note: The Compressor/Limiter only affects the main channel. -
Page 17: Special Features Activation
Special Features Activation The CAM8PRO mixer has several built-in features which are easily activated by making adjustments inside the mixer chassis. Changing the selection of all built-in features requires only the correct placement of internal jumpers or varying the settings of an internal potentiometer. -
Page 18: Jumper Options
Jumper Options Changing Jumper Settings To change a jumper setting, remove the ten screws secured to the top of the mixer. After removing the top of the mixer, locate the jumper to be changed by referring to the drawing on page 17. Jumpers are included from the factory in positions: JP1: 1-3, JP2: 2-4, JP3: 1-3, JP4: 1-3, 2-4.. -
Page 19: Troubleshooting Tips
Troubleshooting Tips NO POWER Check the connections between the mixer and the power supply and the external AC power supply. Examine the 4-pin connector as shown on page 22. Check the wall outlet. NO SOUND • Make sure the MIC/Line switch is in the proper position. (This is the most likely cause.) •... -
Page 20: Glossary
Glossary Auxiliary Input - Accepts only a balanced, line-level input (unlike the 8 channels); the aux- iliary input has no volume control. Compression Ratio - The ratio of the output level above the threshold level to the input level above the threshold. Compression Threshold - The volume level, in dB, which is set as the optimum device operating level, and above which the Compressor/Limiter begins to operate. -
Page 21: Technical Information
Technical Information SPECIFICATIONS Signal-to-Noise ..............Ref +26 dBV @ 54 dB sys gain = 90 dB MIC Pre-amp Equivalent Input Noise ........-129 dB @ 150 ohm, 20 Hz to 20 kHz Maximum Voltage Gain............96 dB Frequency Response ............± 1 dB from 20 Hz to 20 kHz; +0, -3 dB from 10 Hz to 30 kHz Crosstalk (adjacent channels).......... -
Page 22: Block Diagram
Block Diagram Page 22... - Page 23 Notes Page 23...
- Page 24 Warranty; Exclusion of Certain Damages The Bogen CAM8PRO Mixer is warranted to be free from defects in material and workmanship for two (2) years from the date of sale to the original purchaser. Any part of the product covered by this warranty that, with normal installation and use, becomes defective (as confirmed by Bogen upon inspection) during the applicable warranty period, will be repaired or replaced by Bogen, at Bogen’s option, provided the product is shipped...
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