Cloud Electronics CXA200 - Manual (Page 8)

CX-A200 I NSTALLATION AND OPERATION MANUAL 7
12 Field Servicing
The CX-A200 is ruggedly built and uses proven reliable circuitry. It requires no more than
the occasional removal of any dust that may have built up inside the unit as a result of the
forced cooling. In the unlikely event of failure, the power amplifier module (4 channels)
complete with power supply components and input circuitry can be replaced without
special tools and is available as a tested replacement assembly complete with heatsink.
Proceed as follows to replace the power module:
Disconnect all the leads and connectors from the rear of the unit.
Ensure that the mains supply lead has been disconnected.
Remove the CX-A200 from the equipment rack.
Remove the top panel.
Remove the 10 way ribbon cable and the four spade terminal which connect the
transformer. Disconnect the red and black fan supply wires.
Remove the VCA modules (if fitted) complete with the mounting spacers.
Remove the eight fixing screws from the input connectors and the two fixing screws from
the output connectors. Now remove the PCB fixing screws and carefully remove the PCB
Now fit the replacement unit by proceeding in reverse order.
No setting up is required and the unit should operate normally.
13 General Specifications
Inputs Balanced via 3 pin XLR type connectors
Outputs Binding Posts for flexible cables up to 2.5mm²
Protection VI limiting, DC offset, Thermal and Switch-on Delay
Status Indicators LED indicators on each channel for Signal, Peak &Protect
Cooling Force cooled using three speed DC fan
Dimensions 482.6mm x 88.0mm (2U) x 300.0mm deep (+ connectors)
Weight 6kg net
14 Technical Specifications
Rated output 50 watts/4 ohm load 35 watts/8 ohm load
Bridged Output 100 watts/8 ohm load
Frequency Response ±1dB 10Hz to 50kHz
THD <0.05% 20Hz/20kHz 8 1dB below rated output
VCA Module THD <0.03% 20Hz/20kHz
Input Sensitivity 0dBu (775mV)
Input Impedance 10k balanced / 5k unbalanced
Noise >90dB below rated output
Slew Rate 10V/µS (power amplifier)
Power Input 230V ±5% (115V ±5% available)
Fuse rating 230V - T3.15A 115V - T6.3A
Fuse type 20mm x 5mm class 3T 250V