Onkyo ED-901 User Manual
ED-901
Dolby surr ound AC-3 Decoder
Instruction Manual
DOLBY SURROUND AC-3 DECODER
POWER
ON
OFF
INPUT SELECTOR
INPUT 1 (VDP) INPUT 2 (DVD)
PROGRAM STATUS
R
AC-3
LS RSCL
mSEC.
ON ON −10dB C S
DELAY TIME CINEMA Re-EQ MIDNIGHT THEATER CENTER SURROUND
OUTPUT CH. MODE
LEF LEVEL
ED-901
CONTENTS
Features................................................ 2
Important Safeguards........................... 3
Precautions .......................................... 4
Introduction ......................................... 5
Speaker Placement............................... 6
Control Positions and Names .............. 7
Connections ......................................... 8
Operations............................................ 9
Block Diagram................................... 13
Troubleshooting Guide ...................... 14
Specifications .................................... 15
Thank you for your purchase of the
ONKYO ED-901 Dolby Surround AC-3 Decorder.
Please read this manual thoroughly before making connections
and plugging in the AC power cord.
Following the instructions in this manual will enable you to
obtain optimum performance and maximum listening enjoyment from your new ED-901.
Please retain this manual for future reference.
Features
AC-3 Decorder with Lucas Film Cinema ReEQ
LFE (Low Frequency Effects) Level Control
(0dB or -10dB)
Midnight Theater for late night listening at
low volume
2-Input (VDP/DVD)
FOR CANADIAN MODEL:
(POUR LE MODELE CANADIEN)
• For models having a power cord with a polarized plug
CAUTION :TO PREVENT ELECTRIC SHOCK, MATCH
WIDE BLADE OF PLUG TOWIDE SLOT, FULLY INSERT.
• THIS DIGITAL APPARATUS DOES NOT EXCEED THE
CLASS B LIMITS FOR RADIO NOISE EMISSION FROM
DIGITAL APPARATUS SET OUT IN THE
RADIOINTERFERENCE REGULATIONS OF THE
CANADIAN DEPARTMENT OF COMMUNICATIONS.
• Sur les modèles dont la fiche est polarisée.
ATTENTION: POUR ÉVITER LES CHOCS ÉLECTRI-
QUES, INTRODUIRE LA LAME LA PLUS LARGE DE LA
FICHE DANS LA BORNE CORRESPONDANTE DE LA
PRISE ET POUSSER JUSQ’AU FOND.
• L'INTERFERENCE, RADIO ELECTRIQUE GENEREE
PAR CET APPAREIL NUMERIQUE DE TYPE B NE
DEPASSE PAS LES LIMITES ENONCEES DANS LE
REGLEMENT SUL LES PERTURBATIONS RADIO
ELECTRIQUES, SECTION APPAREIL NUMERIQUE, DU
MINISTERE DES COMMUNICATIONS.
ATTENTION FOR BRITISH MODEL
• Replacement and mounting of an AC plug on the power
supply cord of this unit should be performed only by qualified
service personnel.
• IMPORTANT: The wires in the mains lead are coloured in
accordance with the following code:
Blue: Neutral
Brown: Live
As the colours of the wires in the mains lead of this apparatus
may not correspond with the coloured markings identifying the
terminals in your plug, proceed as follows:
The wire which is coloured blue must be connected to the
terminal which is marked with the letter N or coloured black.
The wire which is coloured brown must be connected to the
terminal which is marked with the letter L or coloured red.
Declaration of Conformity
We,
ONKYO EUROPE
ELECTRONICS GMBH
INDUSTRIESTRASSE 18/20
82110 GERMERING,
GERMANY
declare in own responsibility, that the ONKYO product described
in this instruction manual is in compliance with the corresponding
technical standards such as EN55013, EN55020, EN60555-2, -3
and EN60065
GERMERING,GERMANY
H. YAMAZOE
ONKYO EUROPE ELECTRONICS GMBH
FOR U.S.A. MODEL:
FCC INFORMATION FOR USER
CAUTION:
Changes or modifications not 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 can radiate
radio frequency energy 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 the
equipment 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 receiver.
• Connect the equipment into an outlet on a circuit different
from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician
for help.
• The lightning flash with arrowhead symbol, within
an equilateral triangle, is intended to alert the user to
the presence of uninsulated “dangerous voltage”
within the product’s enclosure that may be of
sufficient magnitude to constitute a risk of electric
shock to persons.
• The exclamation point within an equilateral triangle
is intended to alert the user to the presence of
important operating and maintenance (servicing)
instructions in the literature accompanying the
appliance.
WARNING
“TO REDUCE THE RISK OF FIRE OR ELECTRIC
SHOCK, DO NOT EXPOSE THIS APPLIANCE TO RAIN
OR MOISTURE.”
CAUTION
“TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT
REMOVE COVER (OR BACK). NO USER-SERVICEABLE
PARTS INSIDE. REFER SERVICING TO QUALIFIED
SERVICE PERSONNEL.”
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
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Important Safeguards
1. Read Instructions — All the safety and operating instructions
should be read before the appliance is operated.
2. Retain Instructions — The safety and operating instructions
should be retained for future reference.
3. Heed Warnings — All warnings on the appliance and in the
operating instructions should be adhered to.
4. Follow Instructions — All operating and use instructions should
be followed.
5. Water and Moisture — The appliance should not be used near
water — for example, near a bathtub, washbowl, kitchen sink,
laundry tub, in a wet basement; or near a swimming pool, and the
like.
6. Carts and Stands — The appliance should be used only with a
cart or stand that is recommended by the manufacturer.
6A. An appliance and cart combination should be moved with care. Quick
stops, excessive force, and uneven surface may cause the appliance
and cart combination to overturn.
7. Wall or Ceiling Mounting — The appliance should be mounted
to a wall or ceiling only as recommended by the manufacturer.
8. Ventilation — The appliance should be situated so that its
location or position does not interfere with its proper ventilation.
For example, the appliance should not be situated on a bed, sofa,
rug, or similar surface that may block the ventilation openings; or if
placed in a built-in installation, such as a book case or cabinet that
may impede the flow of air through the ventilation openings, there
should be free space of at least 20 cm (8 in.) and open up behind the
appliance.
9. Heat — The appliance should be situated away from heat sources
such as radiators, heat registers, stoves, or 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 there is still trouble, the user
should seek the services of a qualified electrician. Under no
circumstances should the user attempt to defeat the polarization of the
plug.
12. Power-Cord Protection — Power-supply cords should be routed
so that they are not likely to be walked on or pinched by items placed
upon or against them, convenience receptacles, and the point where
they exit from the appliance.
13. Cleaning — The appliance should be cleaned only as recom-
mended by the manufacturer.
14. Nonuse Periods — The power cord of the appliance should be
unplugged from the outlet when left unused for a long period of time.
15. Object and Liquid Entry — Care should be taken so that objects
do not fall and liquids are not spilled into the enclosure through
openings.
16. Damage Requiring Service — The appliance should be serviced
by qualified service personnel when:
A. The power-supply cord or the plug has been damaged; or
B. Objects have fallen, or liquid has been spilled into the appliance;
or
C. The appliance has been exposed to rain; or
D. The appliance does not appear to operate normally or exhibits a
marked change in performance; or
E. The appliance has been dropped, or the enclosure damaged.
17. Servicing — The user should not attempt to service the appliance
beyond that described in the operating instructions. All other
servicing should be referred to qualified service personnel.
PORTABLE CART WARNING
S3125A
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Precautions
1. Warranty card
The serial number is written on the rear panel of the unit.
Write the serial number and model number on your warranty
card and keep it in a safe place.
2. Recording Copyright
Recording of copyrighted material for other than personal use
is illegal without permission of the copyright holder.
3. AC fuse
The fuse is located inside the chassis and is not user service-
able. If power does not come on, contact your ONKYO
service center.
4. Care
From time 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
lettering.
5. Power
WARNING
BEFORE PLUGGING IN THE UNIT FOR THE
FIRST TIME, READ THE FOLLOWING SECTION
CAREFULLY.
• Some models are designed for use only with the power supply
voltage of the region where they are sold.
European model: AC 230 V, 50 Hz
U.S.A. and Canadian models: AC 120 V, 60 Hz
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Introduction
Onkyo’s ED-901 Dolby Surround AC-3 Decoder brings your home the excitement of Dolby Surround AC-3 sound effects from your
LaserDiscs, etc. that employ the latest Dolby AC-3 technology. The ED-901 consists of an AC-3RF demodulator, an AC-3 decoder, and
a Cinema Re-EQ circuit.
An ideal AC-3 home theater system may include either an Onkyo TX-SV919THX or TX-SV828THX surround receiver. These receivers
can be connected to the ED-901 through the DB-25 connector.
What is Dolby Surround AC-3?
· Dolby Surround AC-3 is a new-generation digital audio format for multi-channel surround audio. With this digital audio format, you
can create a five full-range channel system called a “3/2” channel surround system (left, center, right, and two surround channels),
which is a developed version of the conventional “3/1” channel surround 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 Surround AC-3 can reproduce sound of wide and dynamic range, changing your room into a
home theater.
· Currently, LaserDisc is the only medium that employs the Dolby Surround AC-3 technology. In the near future, however, Dolby
Surround AC-3 will be implemented in such media as DVD (Digital Video Disc), CATV (Cable Television), DBS (Direct Broadcasting), and HDTV (High Definition Television).
Dolby Surronud AC-3
Manufactured under license from Dolby Laboratories Licensing Corporation. “Dolby”, “AC-3”, and the double-D symbol are trademarks
of Dolby Laboratories Licensing Corporation.
Copyright 1992 Dolby Laboratories, Inc. All rights reserved.
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