POWER SUPPLIES - Power Supply NAIM - Free user manual and instructions

USER MANUAL POWER SUPPLIES NAIM

owners manuaL P OWER SU P P L I ES EN G L I S H D EU T S C H F RAN Ç A I S I T A L I AN 0 Cont ent s Page Section In order to comply with current European safety regulations it is essential that the Naim loudspeaker connectors supplied with amplifiers and loudspeakers are used.

General Installation Do not under any circumstances allow anyone to modify your Naim equipment without first checking with the factory, your retailer, or your distributor. Unauthorised modifications will invalidate your guarantee.

CD555PS, Supercap and XPS

Power Supply Specifications

Declarations of Conformity SAFETY INSTRUCTIONS Equipment must not be exposed to dripping or splashing and no objects filled with liquid, such as vases, should be placed on the equipment. For your own safety do not under any circumstances open Naim equipment without first disconnecting it from the mains.

Warning: an apparatus with CLASS I construction shall

be connected to a mains socket outlet with a protective earthing connection. Where the mains plug or an appliance coupler is used as the disconnect device, the disconnect device shall remain readily operable. To disconnect the equipment from the mains remove the mains plug from the mains outlet. The following label is attached to all mains powered equipment: warning This apparatus must be earthed note This equipment has been tested and found to comply with the relevant EMC and Safety Standards, and, where applicable, also complies with the limits for a class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and the receiver. onnect the equipment into an outlet on a circuit different from that to which the receiver is connected. onsult your Naim retailer or an experienced radio/TV technician for help. Connections I ntrod u c tio n Naim Audio products are conceived with performance as the top priority. Careful installation will help ensure that their full potential is achieved. This manual covers all power supplies. It begins with some general installation notes and statutory safety warnings. Product specific information begins in Section 4. 1 Con n ect ions It is important for both safety and performance that the standard cables supplied are not modified.

1. 1 Interconne c t C able s

If options are available with your equipment and installation, DIN interconnect sockets should be used in the mains lead may not correspond with the coloured markings identifying the terminals in the plug proceed as follows: The wire coloured GREEN-AND-YELLOW must be connected to the terminal in the plug marked by the letter E or by the safety earth symbol or coloured GREEN or GREEN and YELLOW. preference to RCA Phono sockets. One end of each Naim The wire coloured BLUE must be connected to the terminal interconnect cable is marked with a band to establish in the plug marked with the letter N or coloured BLACK. its correct orientation. The band denotes the end that The wire coloured BROWN must be connected to the connects to the signal source. terminal in the plug marked with the letter L or coloured Interconnect plugs and sockets should be kept clean RED. and free from corrosion. The easiest way to clean them is to switch off the equipment, pull the plugs out of their 2 . 2 E q u i p m en t Fu s es sockets, and push them back in again. Contact cleaners Mains powered Naim Audio equipment is fitted with a and “enhancers” should not be used as the film they mains fuse on the rear panel adjacent to the mains input deposit may degrade the sound. socket. Replace it if necessary only with the spare fuse

1. 2 Loudspea ke r C able s

Loudspeaker cables are vitally important. They should each be at least 3.5 metres long and of equal length. The recommended maximum is normally 20 metres although longer cables may be viable with some Naim amplifiers. Some Naim amplifiers are designed only to work with Naim loudspeaker cable and using alternatives may degrade the performance or even damage the amplifier. Other Naim amplifiers can be used with any high quality loudspeaker cable although we recommend that Naim loudspeaker cable is used. Naim loudspeaker cable is directional and should be oriented so that the printed arrow points towards the speakers. The Naim loudspeaker connectors supplied are designed to comply with European safety legislation and must be used. supplied or with an identical fuse. Repeated failure of the fuse points to a fault that should be investigated by your retailer or Naim itself.

2.3 Non-rewirable Mains Plugs

If a non-rewirable plug is cut from a mains lead (for whatever purpose) the plug MUST be disposed of in a way to render it totally useless. Considerable shock hazard exists if the cut-off plug is inserted into a mains outlet. 2 . 4 M a i n s C i r cu i t s a n d C a b l es A hi-fi system usually shares a mains circuit with other household equipment some of which can cause distortion of the mains waveform. This distortion can in turn lead to mechanical hum from mains transformers. Some Naim transformers are large in size, making them relatively sensitive to such distortion, and it may be necessary Contact your local retailer or distributor for further advice to take account of transformer hum when siting your on loudspeaker cables and connectors. equipment. 2 Main s P owe r Where fused plugs are used 13 amp fuses should be fitted. Fuses of a lower rating will fail after a period Transformer hum is not transmitted through the speakers and has no effect on the performance of the system; however, a separate mains circuit may reduce it. Such a circuit (ideally with a 30 or 45 Amp rating) will also of use. Do not wire voltage dependent resistors or generally improve system performance. Advice on the noise suppressors into mains plugs. They degrade the installation of a separate mains circuit should be sought mains supply and the sound. from a qualified electrician.

2. 1 Mains P lu g W iring

In some territories a mains plug may need to be fitted to the supplied mains lead. As the colours of the wires in Do not substitute alternative mains leads and plugs to those supplied. They are selected to offer the best possible performance.

I ntrod u c tio n 3 Gen er al Instal l a ti o n Naim equipment is designed to offer the finest In some circumstances, depending on where you live performance possible avoiding compromise and the earthing arrangements in your home, you may wherever practical. This can lead to circumstances experience radio frequency interference. Controls on that may be unfamiliar. The notes that follow contain broadcasting in some territories allow very high levels of advice specifically related to Naim equipment as well as more general warnings about the use of domestic audio products. Please read them carefully.

3. 1 Siting The E quipme nt

In order to reduce the risk of hum audible from the loudspeakers, power supplies and power amplifiers should be located a reasonable distance away from other equipment. The maximum separation distance for connected equipment is that allowed by the standard interconnect lead. radio frequency radiation and both the choice and exact siting of equipment may be critical. Susceptibility to radio frequency interference is related to the wide internal bandwidth necessary for high sound quality. A radio frequency filter kit is available for some Naim equipment but sound quality will be progressively compromised as more elements of the kit are fitted. In situations of extreme radio interference Naim equipment may be unsuitable. 3 . 5 L i g h t n i n g P r eca u t i on s Your Naim hi-fi system can be damaged by lightning and should be turned off and disconnected from the mains when there is risk of a lightning strike. For complete Some Naim equipment is extremely heavy. Check the protection all mains plugs and any aerial cables should be weight of the equipment prior to lifting and if necessary disconnected when not in use. use more than one person so that it can be moved safely. Ensure that your equipment rack or table can easily 3 . 6 P r ob l em s ? support the weight and is stable. Consumer protection varies from country to country. In Some speakers and stands are intended to be used with most territories a retailer must be prepared to take back floor spikes fitted. Care should be taken when siting and any equipment he has sold if it cannot be made to work moving them to avoid personal injury or damage to satisfactorily. A problem may be due to a fault in the cables and surfaces. Floor protectors are available from system or its installation so it is essential to make full use of your local dealer or distributor to protect non carpeted your dealer’s diagnostic skills. Please contact your local floors. distributor, or Naim Audio directly, if any difficulties cannot

be resolved. Some Naim equipment is made in special versions for Source components and power supplies should be different territories and this makes it impracticable to switched on before the power amplifiers. Always switch arrange international guarantees. Please establish the amplifiers off and wait a minute before connecting or local guarantee arrangements with your retailer. Contact disconnecting any leads. Always use the power switch on Naim Audio directly for help and advice if necessary. the product rather than a mains outlet switch. A “thump” may be heard from the loudspeakers as power 3 . 7 S er v i ce a n d U p d a t es amplifiers are switched on. This is normal, will not cause It is essential that repairs and updates are only carried any loudspeaker damage and does not point to any fault out by an authorised Naim retailer or at the factory by or problem. A mild “pop” may also be heard shortly after Naim itself. Many components are custom made, tested equipment is switched off. or matched and appropriate replacements are often

Naim equipment takes a considerable time to run in before it performs at its best. The duration varies, but under some conditions the sound may continue to improve for over a month. Better and more consistent unobtainable from other sources. Direct contact to Naim for service or update information should be made initially through Customer Services: Tel: +44 (0)1722 426600 Email: info@naimaudio.com performance will be achieved if the system is left switched Please quote the product serial number (found on its rear on for long periods. It is worth remembering however that panel) in all correspondence. equipment left connected to the mains can be damaged by lightning.

3 . 4 R a d i o I n t er f er en ce C D 555P S , Sup erc a p and XPS Power Suppl i es 4 Pow er Su pp l y Insta l l a ti o n Power supplies should be installed on an equipment rack intended for the purpose in their final location before connecting cables or switching on. Ensure that power amplifiers are switched off and the preamplifier volume is turned down before power supplies are switched on. The power buttons are located on the front panel. Connection diagrams will be found in the appropriate preamplifier or CD player owners manual. Some power supplies are heavy and care should be taken when lifting or moving them. Make sure that the surface on which they are to be placed can support their weight.

4. 1 CD 5 5 5 P S R e ar

Note: The CD555PS can be used to power the CD555, mains input and fuse CDS3 and CDX2 CD players. In the case of the CDS3 and CDX2 only Output 1 is used, NAC 252 only

Note: The XPS can be used to power the CDS3 and CDX2 mains input and fuse CD players. It can not be used to power the CD555. multiple power output

Hi-Cap, FlatCap XS, NAPSA, and NAPSC Power Supplies 5 P ow er Su pp l y Insta l l a ti o n Power supplies should be installed on an equipment rack intended for the purpose in their final location before connecting cables or switching on. Ensure that power amplifiers are switched off and the preamplifier volume is turned down before power supplies are switched on. Connection diagrams will be found in the appropriate preamplifier, tuner or CD player owners manual. Many power supplies are heavy and care should be taken when lifting or moving them. Make sure that the surface on which they are to be placed can support their weight.

5 . 4 NAP S C R ea r power output mains input and fuse output lead to preamplifier or Headline ch1

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