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- Page 1 CXM Mixer Installation & User Guide Cloud Electronics Limited 140 Staniforth Road, Sheffield, S9 3HF England Tel +44 (0)114 244 7051 Fax +44 (0)114 242 5462 e-mail info@cloud.co.uk web site http://www.cloud.co.uk...
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Page 2: Table Of Contents
CXM Technical MANUAL CXM MODULAR MIXER Technical manual Contents Section Page General ......................3 1.01 General Description ..................3 1.02 Main Frame ..................... 3 1.03 Power Supply ....................3-4 CS1 Stereo Music Module ..............5 2.01 CS1 Stereo Music Module ................5 2.02... -
Page 3: Technical Manual
Some of the data herein could be mis-interpreted by the end user with serious or even disastrous consequences. For these reasons, this manual should not be left with the CXM mixer after installation, unless the end user can prove his or her electronic qualification. A 'User's Guide' is provided for operator instruction. -
Page 4: General
General Description 1.01 The Cloud CXM mixer is primarily designed for 'live' discotheque use, yet it is equipped with such flexible facilities that it may successfully be used in a wide range of applications such as broadcast and production studios. -
Page 5: Power Supply Installation
CXM Technical MANUAL The PSU 1040 can be modified to operate from a supply of 110 - 120V by removing the internal link marked '240V' and fitting two adjacent links marked '110 - 120V'. The 220 - 240V fuse rating of T500mA should be changed to T1A for 110 - 120V operation. -
Page 6: Cs1 Stereo Music Module
CXM Technical MANUAL CS1 Stereo Music Module 2.01 This module contains RIAA equalised phono and line level amplifiers, sub-sonic filter, equaliser, auxiliary sends, channel fader, crossfade assign, mono switch, PFL select logic and remote start switch. Inputs are by way of gold plated RCA phono sockets. -
Page 7: Stereo/Mono
CXM Technical MANUAL 2.08 Stereo/mono A mono switch is included and this simply links the two stereo signals, the adjacent LED illuminates when the signals are linked. 2.09 Crossfade Assignment Two crossfade assign switches are provided; with both switch A and switch B in the off position, stereo signals are routed to bypass the crossfade circuitry. -
Page 8: Pcb Jumpers
CXM Technical MANUAL 2.16 PCB Jumpers The locations of the PCB configuration jumpers can be seen on the diagram to the left. The list below explains each jumper, its approximate position and default settings. J1 Left Phono Input Select, located on overhead PCB, factory set to RIAA equalisation. -
Page 9: Cm1 Microphone Module
CXM Technical MANUAL CM1 Microphone module 3.01 The CM1 module contains a low noise balanced microphone amplifier with line level switching, a 100Hz high pass filter, 3 band equalisation, line level insert, 2 auxiliary sends, Pan control, PFL select, Peak LED, channel fader and mute switch. -
Page 10: Equalisation
CXM Technical MANUAL 3.08 The equaliser circuitry can be switched in or out of the signal path by simply configuring a PCB jumper. This operates independently of the 100Hz high pass filter. 3.09 Auxiliary Sends 2 auxiliary sends are provided and can be individually configured to operate in the pre-fade or post-fade mode by simply reversing a PCB jumper (see detail). -
Page 11: Pcb Jumpers
CXM Technical MANUAL 3.16 PCB Jumpers The locations of the PCB configuration jumpers can be seen on the diagram to the left. The list below explains each jumper, its approximate position and default settings. Equalisation jumper, located next to the insert jack socket, factory set in the active position. -
Page 12: M2 Master Module
CXM Technical MANUAL M2 Master Module... -
Page 13: X-Filter
CXM Technical MANUAL 4.01 X-Filter When used in conjunction with the crossfade the X-Filter facility on the M2 allows the user to mix selected bands of frequencies from one crossfade busbar together with selected frequencies from the other busbar. The three X-Filter buttons on the left-hand side can be used to remove any combination of top, mid and low frequencies from the signal on the A busbar. -
Page 14: Output 2
CXM Technical MANUAL required, with a 6dB loss in gain (see 6.02 Unbalanced Mode). The CXM M2 is designed to interface with equipment requiring OdBu (775mV) signal level and has both gain and headroom margins to successfully match a wide range of ancillary equipment. -
Page 15: Pfl Output
Music Signals via a Fire alarm control panel in an alarm condition. The CXM M2 provides a facility to mute the music signals. The option to mute mic signals in addition to the music signals is set by means of J2 (see diagram). The mute is activated by a fully floating pair of contacts in the Fire alarm control panel which close during an alarm condition. -
Page 16: Sound To Light Output
CXM Technical MANUAL 4.18 Sound to Light Output This fully floating, transformer coupled output facility can be used to trigger sound to light controllers. The signal is derived from the main output and is rated at +10dBu (2.45V) with a minimum load of 600Ω. Connection is by way of a 2 pole 1/4" jack socket. -
Page 17: M2 Rear Panel Connections
CXM Technical MANUAL M2 Master Module Rear Panel Connections... -
Page 18: Cz1 Zone Module
CXM Technical MANUAL CZ1 Zone Module 5.01 The CZ1 Module extends the output facilities of the M1 or M2 Master module by providing an extra 3 output zones with independent control of microphone and music levels. 5.02 Zone 1 Two faders are provided to independently control the output level of the microphone and music signals. -
Page 19: Cz1 Zone Module
CXM Technical MANUAL CZ1 Zone Module... -
Page 20: General
If a CZ1 zone module is fitted to the CXM mixer, it is possible to use the auxiliary outputs on Zone 2 or Zone 3 for recording purposes. Possibly the best option would be to use Zone 2 in the pre-fade mode. -
Page 21: Service And Configuration
MANUAL Service and Configuration Access to the inside of the CXM mixer will not normally be required. If any servicing should become necessary or the factory jumpers need re-configuring, then this should only be carried out by qualified service personnel. -
Page 22: Warning
CXM Technical MANUAL This product conforms to the following European Standards EN 50081-1:1992 EN 50082-1:1992 EN 60065:1994 Safety Considerations THIS UNIT MUST BE EARTHED. ENSURE THAT THE MAINS POWER SUPPLY PROVIDES AN EFFECTIVE EARTH CONNECTION USING A THREE WIRE TERMINATION.
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