User manual SOUNDCRAFT CPS650

[. . . ] Soundcraft shall not be liable for any loss or damage whatsoever arising from the use of information or any error contained in this manual, or through any mis-operation or fault in hardware contained in the product. No part of this manual may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic, electrical, mechanical, optical, chemical, including photocopying and recording, for any purpose without the express written permission of Soundcraft. It is recommended that all maintenance and service on the product should be carried out by Soundcraft or its authorised agents. Soundcraft cannot accept any liability whatsoever for any loss or damage caused by service, maintenance or repair by unauthorised personnel. Harman International Industries Ltd. [. . . ] Retain this manual safely, along with all other relevant documents. For touring/mobile transportation it is advisable to install the CPS250/CPS275 in a flight case to provide mechanical protection. Refer to your Soundcraft dealer for a suitable case. Where the CPS250/CPS275 is enclosed in a touring case, provision must be made for adequate ventilation to the rear of the unit to ensure unrestricted supply of air for the cooling fan. Use only the high-current mains lead supplied, not the more common 5A type supplied with other equipment. Installation 7 PSU Linking (CPS275 Only) The output voltages from the CPS275 are fed via diodes as shown in the adjacent diagram. This allows a standby CPS275 to automatically takeover in the event of a power rail failing. When a spare CPS275 is ordered it comes with a 1metre linking cable. This should be connected between the link connectors as shown in the diagram. (Only one rail shown. ) Link Console Standby CPS275 Link Console (Only one rail shown. ) Main CPS275 To Console Dimensions 8 Installation Technical Specification Technical Specification 9 Technical Specification MAINS INPUT VOLTAGE RANGE: 85/100/115/230 V AC +10%/-15% @ 50/60Hz RATED INPUT POWER (Max): CPS250 - 350 WATTS CPS275 - 450 WATTS MAINS FUSE RATING: Use T3. 15A/250V (slow-blow) for 230V Use T6. 3A/250V (slow-blow) for 85/100/115V OUTPUTS DC. OUTPUT CURRENT CPS250 +17. 5V -17. 5V +5V +48V 4. 00 AMPS 4. 00 AMPS 1. 00 AMPS 0. 30 AMPS CPS275 5. 25 AMPS 5. 25 AMPS 1. 00 AMPS 0. 30 AMPS All voltage and current measurements are to be taken at the console-end of the power supply cable. OPERATING TEMPERATURE RANGE (Ambient): -10 TO +40°C. HUMIDITY: Similar unit tested at 0-90% RH non-condensing +/-5% Relative Humidity at 40 °C for 16 hours. Load switched between 20% and 100% at regular 30 minute intervals. OVERALL DIMENSIONS: HEIGHT: (exc. feet) WIDTH: Chassis Front panel 88. 10mm. packing): 11Kg 10 Technical Specification Technical Description Servicing should only be carried out by a competent service engineer. Diode D22 on the output (CPS275 only) allows supplies to be paralleled for redundancy. Technical Description 15 The +5V Supply. Max current rating 1. 0 Amps. This supply is primarily intended for powering console internal computers; it also powers the cooling fan. The AC input is fused by F4 and fullwave rectified by D9-12, with C36 as the reservoir capacitor. The LM340 regulator has a fixed 5. 0V output. A protection diode is included; D14 protects the regulator from reverse voltage if there is a charged capacitor across the output but the voltage on C36 has collapsed. Diode D23 on the output (CPS275 only) allows supplies to be paralleled for redundancy. 16 Technical Description Servicing SAFETY. These safety notes are directed to those testing and repairing this power supply. Legal requirements mean that we must not encourage untrained personnel to take the lid off. Servicing should only be carried out by a competent service engineer. This supply contains mains voltages on the voltage select PCB, the mains switch, etc, and the usual precautions must be taken. The main reservoir capacitors have a capacity of 20, 000 uF, and are charged to +26V. The danger lies not in the voltage, but in the large currents that will flow if the capacitor terminals are shorted. A small screwdriver will simply disappear in a violent explosion. The main bodily danger is from metal watchstraps, etc. [. . . ] The regulator screws are tapped into a relatively soft aluminium heatsink. DO NOT OVER-TIGHTEN or you will strip the thread in the heatsink. High performance mounting pads must be fitted between the regulators and the heatsink. The regulators must be checked for isolation from the heatsink using a multimeter. [. . . ]