User manual CAMBRIDGE AUDIO AZUR 840E

[. . . ] Pre-Amplifier User's manual 2 azur 840E Your music + our passion ENGLISH Important safety instructions For your own safety please read the following important safety instructions carefully before attempting to connect this unit to the mains power supply. They will also enable you to get the best performance and prolong the life of the unit: 1. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat. Do not defeat the safety purpose of the polarized or grounding-type plug. [. . . ] The 840E is designed to work at its highest performance when a balanced interconnect is used. The diagrams below shows the 840E pre-amplifier connected to an Azur 840C CD player in unbalanced (Figure 1) and balanced (Figure 2) configurations. The 840E can also be connected to non Cambridge Audio sources with balanced outputs. Balanced connections in an audio system are designed to reject electrical noise, from power wiring etc, and also the effects of noise currents flowing through ground connections. The basic principle of balanced interconnection is to get the signal you want by subtraction, using a three-wire connection. One signal wire (the hot or in-phase) carries the normal signal, while other (the cold or phase-inverted) carries an inverted version. The balanced input senses the difference between the two lines to give the wanted signal. Any noise voltages that appear identically on both lines (these are called common-mode signals) are cancelled by the subtraction. Make sure the Balanced/Unbalanced switch for Inputs 1 and 2 are set to the connection type you wish to use. Figure 1: Unbalanced input Figure 2: Balanced input 840E Multi-Room Keypad 1 IR1 IR3 840E Input 2 Balanced Audio Input 1 Balanced Audio GND Multi-Room Keypad 1 IR1 IR3 Input 2 Balanced Audio Input 1 Balanced Audio GND Power Designed in London, England Trigger In Out/Thru IR Emitter In Control Bus RS232C In Out International Patent Pending LeisureTech Electronics Pty Ltd Power Designed in London, England Trigger In Out/Thru IR Emitter In Control Bus In Out International Patent Pending LeisureTech Electronics Pty Ltd azur 840E Pre-Amplifier On Off PSU In On Off RS232C azur 840E Pre-Amplifier Power Rating: 230V AC ~ 50Hz Max Power Consumption: 36W PSU In Power Rating: 230V AC ~ 50Hz Max Power Consumption: 36W www. cambridge-audio. com CAUTION Risk of electric shock. Do not open. www. cambridge-audio. com Keypad 2 Flat / 200Hz L. P. AVIS Risque de choc electrique. Netzstecker ziehen. IR2 Input 7 Input 7 Loop IR4 Input 5 Input 5 Input 6 Input 6 Right Input 4 Input 4 Left Input 3 Input 3 Right Input 2 Input 2 (Unbalanced) Left Input 1 Balanced CAUTION Risk of electric shock. Netzstecker ziehen. Keypad 2 Flat / 200Hz L. P. IR2 Input 7 Input 7 IR4 Input 5 Input 5 Input 6 Input 6 Right Input 4 Input 4 Left Input 3 Input 3 Right Input 2 Input 2 (Unbalanced) Left Input 1 Balanced Input 1 Balanced Power AC Manufactured in an ISO9001 approved facility GND Unbalanced Power AC Manufactured in an ISO9001 approved facility Pre Out Right Left Sub Out Rec Out 2 Rec Out 1 Rec In Input 1 (Unbalanced) Input 2 GND Pre Out Right Left Sub Out Rec Out 2 Rec Out 1 Rec In Input 1 (Unbalanced) This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: 1) This device may not cause harmful interference; 2) This device must accept any interference, including interference that may cause undesired operation. This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: 1) This device may not cause harmful interference; 2) This device must accept any interference, including interference that may cause undesired operation. Phono/RCA 3098092 Conforms to ANSI/UL STD 60065 7th Edition 2003 Rev 2006/03/20 Certified to CAN/CSA STD C22. 2 No. 60065-03 GND XLR 3098092 Conforms to ANSI/UL STD 60065 7th Edition 2003 Rev 2006/03/20 Certified to CAN/CSA STD C22. 2 No. 60065-03 GND 840C 840C Power syncing (On/Standby control) When going in/out of Standby mode the Azur 840E pre-amplifier can (if desired) automatically control the 840W when connected via the Control Bus sockets (the Control Bus sockets are colour-coded orange on the rear panels of compatible Azur models). For this feature to work the units must be connected together by RCA/phono leads. Connect the Control Bus Out from the 840E to the Control Bus In on the 840W. Continue the chain to other Azur models if it is required to sync more units (refer to the 840E's own manual for more information as this requires some setup). Note: The 840E features a Trigger Out which can alternatively be used to control the 840W's Standby/On status if desired. Again, the procedure is simply to connect the two units together (using a 3. 5mm to 3. 5mm mono mini-jack lead in this case). Control Bus is the recommended method when using an 840E and other Cambridge Audio equipment with Control Bus In/Out. [. . . ] 60065-03 GND The 840E is Incognito Ready Type II, which means the keypads can operate independently of the amplifier in terms of volume/bass/treble etc, be independently turned on and off, and can also listen to a different source from that which is currently selected on the amplifier. A-BUS is a standard that allows compatibility between different manufacturers equipment, so A-BUS compatible keypads from other manufacturers can also be used. If used with our own Incognito KP10 keypads, there are some extra features such as the ability to change source on the 840E from the keypad (EU model shown here): Order of selection: 1. Input 6 (Tape) 14 R R R R L L L L Rec In Rec Out 1 Rec Out 2 Balanced Pre Out Pre Out Unbalanced Input 1 Balanced Unbalanced Input 2 Mode Volume Fig. [. . . ]