Meridian America Meridian 518 manual Cleaning, Maintenance & Service

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Support information	42

FCC WARNING: This equipment generates and can radiate radio fre- quency energy and if not installed and used correctly in accordance with our instructions may cause interference to radio communications or radio and television reception. It has been type-tested and complies with the limits set out in Subpart J, Part 15 of FCC rules for a Class B computing device. These limits are intended to provide reasonable protection against such interference in home installations.

If this equipment does cause or suffer from interference to/from radio or television reception then the following measures should be tried:

1.Reorient the receiving aerial (or antenna) or route the antenna cable of the receiver as far as possible from the 518 and its cabling.

2.Ensure that the receiver uses well-screened antenna cable.

3.Relocate the receiver with respect to the 518.

4.Connect the receiver and this product to different AC outlets.

5.If the problem persists contact your dealer.

EEC This product has been designed to comply with the limits set out in

EN55013 and EN55020C.

REMEMBER to switch all units off before changing any connections.

Cleaning

When cleaning the 518 bear in mind that the front of the unit is plastic, and the display panel and top surface are glass.

Disconnect the power cord before cleaning the unit.

Note Do not use abrasive cleaners on any part of the 518.

Maintenance & Service

The Meridian 500 Series of hi-fi components have been carefully de- signed to give years of untroubled service, and there are no user-service- able parts inside the case, nor do the units require any form of mainte- nance.

In the unlikely event that your 518 fails to function correctly, it should be returned, in its original packing, to your Meridian dealer. In case of diffi- culty within the UK or USA please contact our sales and service offices shown on page 4.

Outside the UK: contact the importing agent for the territory. A list of

Meridian agents abroad is available from the above address.

No responsibility can be accepted for the 518 whilst in transit to the fac- tory or an agent and customers are, therefore, advised to insure the unit.

518 User Guide

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Contents 1992, 1993 Contents Simple rules for using Appendix 4 -Resolution EnhancementAppendix 2 Hints on Mastering Designed & manufactured in the UK by Sales and service in the UKSales and service in the USA AcknowledgementsAbout the 500 Series IntroductionAbout this manual Conventions used in this manualUnpacking Installing yourGeneral precautions ConnectionsPlanning setup Whats inside a 518?Overview as Preamp Type What about analogue sources? What else do I need to know?Overview as Resolution Enhancement Processor Type CD or LaserDisc playback improvementMeridian DSP speaker improvement Meridian Surround improvement Overview as Mastering Processor Type Overview as Multimedia Processor TypeCustomising features ∙ Normal ∙ Standby ∙ Type ∙ ConfigBasic operation Switching onStarting off with StandbySelecting a source Adjusting the volumeOperating 518 as a Control Unit Type OutShape a DitherFlat Shape BDisplay Advanced operation using the Remote Control Muting the sound Operating 518 as Resolution Enhancer TypeVolume control Menu KeysWith the Remote Control Operation summaryMemory Config control settings Restoring default settingsConfig an overview Customising 518, an overviewConfig sources and inputs How to customiseCustomising, general procedure How to change to Type or ConfigMaking changes to an existing setup Customising using TypeHow to change back to Normal Setting Type ControllerConfig Customising using ConfigHow to use Config Selecting TypesSetting the product address for Selecting the controller modeSetting the system address for Setting the Standby mode forSetting the Volume mode for Setting the Blank display option forSetting the Emphasis option for Setting the Volume displaySetting up sources Choosing source logosVol. dB Changing the input for a source Choosing the Comms type for a source productChoosing the address of a source product Digital input connections ConnectionsDigital audio connections Digital output connectionTo connect to other Meridian 500 Series equipment Connecting to Meridian Digital speakersCommunications connections ConPart Mastering ProcessorMeridian 500 Comms warning DescriptionAs a Mastering or Multimedia Processor Type D1 +2Emph +2 ShpB +2Making Recordings Transfer to editor Transfer to the final carrierNoise shaper characteristics Shaper Advantage 44.1kHz 48kHz Normal Pre-emphasisDigital Audio and Quantisation Operating BackgroundTransparency in digital systems DitherNoise Shaping with dither Dynamic RangePre and De-emphasis No change in sample size Simple rules for usingStep-down in sample word size Step up in dynamic rangeSpecification Additional technical informationHelp Cleaning Maintenance & ServicePart Appendix 1 Noise Shapes NoiseAbove noise spectrum for Shape B at 44.1kHz 0Hz 5kHz 10kHz 15kHz 20kHz Appendix 2 Hints on Mastering with noise-shaping Vulnerability of the signalAudible results of digital errors and editing Requirements for D/A conversionAppendix 2 Hints on Mastering Appendix 3 RS232 Handset FunctionsGoTo Functions Appendix 4 -Resolution Enhancement Jitter and de-jitteringDynamic-range FrequencyDynamic-range optimisation with Gain Dynamic-range optimisation with Pre-emphasisShowing CD pre- and de-emphasis curves Dynamic-range optimisation with Noise-shaped Dither DAC enhancement by using high-frequency dither DAC or channel enhancement by word-length matchingContents IndexIndex User Guide User Guide