Manuals / Meridian Audio / Home Audio / Home Theater System

Meridian Audio 565 manual Sound not clear, Centre not working

Models: 565

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Sound not clear

❍If speech sounds muffled in a system with a centre speaker, check that sound is coming from the centre as there may be a connection problem. In a digital or Meridian feed to the centre you may have set it up to be right instead of left so that it is playing a subwoofer signal.

❍If speech sounds muffled in a system with no centre speaker, you may have selected a layout that expects one. See Specifying the speaker layout, page 22.

Centre not working

There may be a connection problem.

❍In a digital or Meridian feed to the centre, you may have set it up to be right instead of left, and therefore it may be playing a subwoofer signal.

There is a hiss when starting DTS LaserDiscs

The DTS audio stream is indistinguishable from a PCM audio stream; the 565 takes 30 msec to identify the encoding, during which a hiss is heard.

❍With non-video DTS sources you can add a 30 msec delay to avoid this. However, with video sources the delay would cause a noticeable sync problem, so the hiss is unavoidable.

Troubleshooting

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Meridian Audio 565 manual Sound not clear, Centre not working, There is a hiss when starting DTS LaserDiscs

Contents

Meridian 565 Digital Surround Processor Manufactured in the UK by PrefaceContents Troubleshooting Setting up sourcesCalibrating the system Introduction IntroductionThree-channel surround system Layout G or L, No Surrounds Planning a systemIntroduction Introduction Surround system with full-range speakers Layout L Using the 565 with Meridian DSP LoudspeakersUsing a Digital Control Unit Using an analogue preamplifierUsing a LaserDisc player Planning sourcesSetting up the digital surround processor Unpacking Setting up the digital surround processorTo position the digital surround processor Radio interferenceSetting Connecting the digital surround processorRear panel Video connectionsAudio outputs Audio inputsRS232 connection Communications connectionsSetting up the digital surround Connecting videoOn-screen display To connect to Meridian DSP Loudspeakers eg DSP5000 Connecting speakersTo connect to Meridian Active Loudspeakers Subwoofer To use the digital surround processor as a preamplifier Connecting sourcesTo connect to a 519 Demodulator To connect to a 562 or 562V Digital Control Unit Surr Analogue Tape OUT A4 in Audio Inputs Digital Optical To connect to other Meridian 500 Series equipment Connecting to other Meridian equipmentConfiguring the digital surround processor To select a standard setting Choosing standard settingsProcessor Standard settings Configuring the digital surround processor How to use the table of speaker layoutsSpecifying the speaker layout Small main speakers Speaker layouts To define the shape of the speaker layout To set the speaker layoutDigital surround Configuring the digital surround processor To select a 5.1 LFE subwoofer To set other configuration optionsTo time-align the system Setting up the speaker outputsTo change the settings for a speaker To set up a speaker outputTo select the output type DigitalTo set the output delay To specify the output precision To set up speaker protection for 5.1 sourcesDigital surround processor To specify the type of subwoofer Calibrating the system Calibrating the systemUsing a Sound Pressure Level meter Using the calibration procedureTo exit from the calibration procedure To start the calibration procedureTo move between the calibration tests Levels Calibration testsMain Centre Phase Front-Rear Surround Sides Subwoofers LRS Other subwoofersWhat next? ADC CheckSystem To select a different test signal Test signalsTo test for room vibrations Setting up sources Setting up sourcesDTS THX Mpeg THX Standard source settingsTo change an option To configure a sourceOption Initial value Alternative values Explanation MPEG, Mpeg THX To use a source key to change DSP preset Examples of configuring the sourcesTo change a source label To set up a system with two Meridian CD players Setting up sources Troubleshooting TroubleshootingStandby point not lit General operating problemsRemote not working Communications not working with other Meridian productsHum on analogue input Audio problemsPoor sound quality There is radio interferenceCrackling on optical inputs Audible hiss at high volume settingsSound not clear There is a hiss when starting DTS LaserDiscsCentre not working TV does not work using Poor picture quality Video problemsIndex IndexLayouts Optical Types