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ED-901

Dolby surr ound  AC-3 Decoder

Instruction Manual

CONTENTS

Connections ......................................... 8
Operations ............................................ 9
Block Diagram ................................... 13
Troubleshooting Guide ...................... 14
Specifications .................................... 15

Features ................................................ 2
Important Safeguards ........................... 3
Precautions .......................................... 4
Introduction ......................................... 5
Speaker Placement ............................... 6
Control Positions and Names .............. 7

POWER

DOLBY  SURROUND  AC-3  DECODER

INPUT SELECTOR

INPUT 1 (VDP)

INPUT 2 (DVD)

ON

DELAY TIME

CINEMA Re-EQ MIDNIGHT THEATER

CENTER

SURROUND

ED-901

LEF LEVEL

ON

ON

10dB

C

S

OUTPUT CH. MODE

OFF

R

PROGRAM  STATUS

mSEC.

AC-3

LS

RS

C

L

Summary of Contents for ED-901

Page 1: ...ations 15 Features 2 Important Safeguards 3 Precautions 4 Introduction 5 Speaker Placement 6 Control Positions and Names 7 POWER DOLBY SURROUND AC 3 DECODER INPUT SELECTOR INPUT 1 VDP INPUT 2 DVD ON DELAY TIME CINEMA Re EQ MIDNIGHT THEATER CENTER SURROUND ED 901 LEF LEVEL ON ON 10dB C S OUTPUT CH MODE OFF R PROGRAM STATUS mSEC AC 3 LS RS C L ...

Page 2: ...expressly approved by the manufacturer for compliance could void the user s authority to operate the equipment NOTE This equipment has been tested and found to comply 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...

Page 3: ... other appliances including amplifiers that produce heat 10 Power Sources The appliance should be connected to a power supply only of the type described in the operating instructions or as marked on the appliance 11 Polarization The polarization of the plug is a safety feature The polarized plug will only fit the outlet one way If the plug does not fit fully into the outlet try reversing it If the...

Page 4: ...to time you should wipe off the front and rear panels and the cabinet with a soft cloth For heavier dirt dampen a soft cloth in a weak solution of mild detergent and water wring it out and wipe away the dirt Following this dry immediately with a clean cloth Do not use rough material thinners alcohol or other chemical solvents or cloths since these may damage the finish or remove the panel letterin...

Page 5: ...round system left center right and only one surround channel Adding to its five full range channels Dolby Surround AC 3 supports an LFE low frequency effect channel which is used solely for low frequency sounds independent of the other channels Dolby Surround AC 3 is sometimes referred to as a 5 1 channel format since this LFE channel is indicated as 0 1 This fully discrete 5 1 channel Dolby Surro...

Page 6: ...mended that you set up a complete THX speaker system To use ED 901 without a complete THX speaker system If no Center speaker or Surround speaker is connected to your system the sound to the unused channel can be properly distributed to other channels To do so turn off the indicator corresponding to the unused channel by pressing the CENTER button or SURROUND button on the front panel see page 10 ...

Page 7: ...TATUS indicators These LEDs indicate which output channels the software uses 6 DELAY TIME button and indicator 11 7 CINEMA Re EQ button and indicator 12 8 MIDNIGHT THEATER button and indicator 12 9 LFE LEVEL button and indicator 12 10 CENTER button and indicator 10 11 SURROUND button and indicator 10 Supplied accessories Audio connection cable 1 Video Digital Coaxial connection cable 2 DB 25 cord ...

Page 8: ...lied to the VIDEO 1 IN terminal of the TX SV828THX Read AC 3 decoder connection in the Optical pre amplifier connections section of the TX SV828THX Manual On the TX SV828THX select External Decoder in the Surround Setup menu See Fig 4 in the Operating Sur round section page 42 of the TX SV828THX Manual INPUT 2 COAXIAL OPTICAL COAXIAL INPUT 1 DVD AC 3 RF VDP OPTICAL MULTI CHANNEL AUDIO OUTPUT OUTPU...

Page 9: ...button on the ED 901 to turn it on 4 Press the INPUT 1 VDP or INPUT 2 DVD input selector button The LED for the selected input source will light 5 Play the AC 3 sound source The PROGRAM STATUS indicator will appear on the display Note Before performing the following procedure make sure that the ED 901 is properly connected to the surround receiver To play Dolby Pro Logic sound sources The ED 901 i...

Page 10: ...ystem the sound to the unused channel can be properly distributed to other channels If Center speaker is not connected Turn off the C indicator by pressing the CENTER button If Surround speakers are not con nected Turn off the S indicator by pressing the SURROUND button Note Setting the Output Channel mode on the ED 901 does not change the Speaker Mode setting of the surround receiver TX SV919THX ...

Page 11: ...an set a delay time within the range of 0 to 15 ms A rule of thumb is that it takes 1 ms for sound to travel one foot For example if the front speakers and the surround speakers are located the same distance from the listening position you should set the delay time as 0 If the front speaker listener distance is one foot longer set the delay time to 1 ms and so on Note If your surround receiver s d...

Page 12: ... the ED 901 compensates this and reproduces optimal sound for the home theater system Using the Midnight Theater Mode Press the MIDNIGHT THEATER button The LED indicator ON immediately above this button will light to indicate that you are in the Midnight Theater mode Use the Midnight Theater mode if you must play a movie at low sound volume at night In the Midnight Theater mode the ED 901 makes th...

Page 13: ... u d i o I n t e r f a c e AC 3 Decoder 20 bit D A 20 bit D A 20 bit D A A n t i a l i a s i n g F i l t e r CINEMA Re EQ DB 25 OUTPUT 10dB LFE SUB WOOFER L R LS RS C S S L R L R VDP DVD VDP DVD VIDEO SELECTOR AUDIO SELECTOR VIDEO OUTPUT S Composite VIDEO AUDIO OUTPUT L R VIDEO VIDEO ...

Page 14: ... Wrong OUTPUT CH MODE selection Remedy Put on the OUTPUT CH MODE indicator for the speaker No Sound from Subwoofer Cause No Subwoofer is selected on the receiver Remedy Select Subwoofer on the receiver Low Frequency Noise Hum Cause Incorrect audio cord connection Remedy Firmly connect audio cords Poor Bass Sound Cause LFE LEVEL setting is 10dB Remedy Put off the LFE LEVEL indicator The Difference ...

Page 15: ...FER 0 2V 470Ω Frequency response Dolby AC 3 5CH out 20 Hz 20 kHz 0 3dB Distortion L C R LS RS 0 05 1kHz SUBWOOFER 0 05 50Hz Signal to noise ratio 98dB Output 2v IHF A Power consumption 25 watts Power supply rating USA and Canadian models AC 120 V 60 Hz European model AC 230 V 50 Hz Dimensions W H D 455 90 320 mm 17 15 16 3 9 16 12 5 8 Weight 4 3 kg 9 5 lbs Specifications and external appearance ar...

Page 16: ...iams Drive Ramsey N J 07446 U S A Tel 201 825 7950 Fax 201 825 8150 E mail onkyo onkyousa com ONKYO EUROPE ELECTRONICS GmbH Industriestrasse 18 20 82110 Germering GERMANY Tel 089 84 93 20 Fax 089 84 93 226 ONKYO FRANCE Immeuble Le Diamant Domaine Technologique de Saclay 4 Rue René Razel 91892 SACLAY FRANCE Tel 1 69 33 14 00 Fax 1 69 41 35 84 http www onkyo co jp HOMEPAGE ...

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