Abbingdon Music Research CD-77 Manuel utilisateur
Abbingdon Music Research
CD-77 Reference Class
Compact Disk Processor
Owner’s Manual
2
‘All the Music Recreated’
3
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 this component.
This component weighs 39 kilograms. Do not place this component on an unstable cart, stand, tripod, bracket or
table as the component may fall causing serious injury to a child or adult and serious damage to the unit. An
appliance and cart combination should be moved with care. Quick stops, excessive force and uneven surfaces
may cause the component and cart combination to overturn.
Any mounting of the device on a wall or ceiling should follow the manufacturer’s instructions and should use a
mounting accessory recommended by the manufacturer.
Read and follow all the safety and operating instructions before connecting or using this component.
All warnings on the component and in its operating instructions should be adhered to.
Retain this Owner’s Manual for future reference.
Do not use this unit near water; for example, near a bath tub, washbowl, kitchen sink, laundry tub, in a wet
basement or near a swimming pool.
Unplug the component from the wall outlet before cleaning. Never use benzine, thinner or other solvents for
cleaning; use only a soft damp cloth.
WARNINGS
4
Care should be taken so that objects do not fall, and liquids are not spilled into the enclosure through any
openings.
This component should be serviced only by qualifiedAMR service personnel when:
A. The power cable or the power input socket has been damaged;
B. Objects have fallen, or liquid has been spilled into the component;
C. The component has been exposed to rain or liquids of any kind;
D. The component does not appear to operate normally or exhibits a marked change in performance;
E. The component has been dropped or the enclosure has been damaged.
DO NOT ATTEMPT SERVICING OF THIS UNIT-YOURSELF. REFER SERVICING
TO QUALIFIED AMR SERVICE PERSONNEL
Upon completion of any servicing or repairs, request the service point’s assurance that only AMR Authorised
Replacement Parts with the same characteristics as the original parts have been used, and that the routine
safety checks have been performed to guarantee that the component is in a safe operating condition.
REPLACEMENT WITH UNAUTHORIZED PARTS MAY RESULT IN FIRE,
ELECTRIC SHOCK OR OTHER HAZARDS
5
On placement
Just like a thermionic electron valve amplifier, with a compliment of 6 valves, the CD-77 will become warm
during operation. This is normal. Given this, it is imperative that the installation of the CD-77 DOES NOT
interfere with its proper ventilation.
For example, it should not be situated on a bed, sofa, rug or similar surface that may block the top or bottom
ventilation openings; or placed in a built-in installation, such as a bookcase or cabinet, that may impede the flow
of air through its top and bottom ventilation openings.
Do not place the component in a location near heat sources, or in a place subject to direct sunlight, excessive
dust, or mechanical shock. Do not place the component in an inclined position. It is designed to be operated in a
Precautions
This equipment has been tested and found to comply with the limits set out in the EMC Directive using a
connection cable shorter than 3 metres.
On power sources
The mains power cable should be routed so that it is not likely to be walked on or pinched, especially near the
plug or back panel receptacle. The component should not be disconnected from theAC power source as long as
it is connected to the wall outlet, even if the component itself has been turned off.
If this component is not going to be used for a long time, be sure to disconnect the component from the wall
outlet. To disconnect the AC power cable, grasp the plug itself; never pull the cable.
6
horizontal position only. Do not place heavy objects on the component. Do not place heavy objects on the
component.
Keep the component and compact discs away from equipment with strong magnets, such as microwave ovens
or large loudspeakers.
To prevent fire or shock hazard, do not place vessels filled with liquids, such as vases, on the component.
Touch-Sensitive Buttons
On the front fascia of this AMR component are touch-sensitive buttons. Due to the wide variance of climes
around the world, instances may arise where to activate a button:
- the touching finger may be required to be in contact with both the button and the front fascia to register;
- the touching finger may have to touch the chassis to discharge any static electricity prior to button selection.
Running-In
AMR estimates that the CD-77 may take between 300-500 operating hours for all of the internal components to
be fully-broken in. Please anticipate the sonic performance of the CD-77 to settle only after it has been used for
this approximate length of time.
Stand-By
Please note that the solid state section needs to find its equilibrium and due to the (unavoidable) use of electro-
lytic capacitors (and an effect called soakage) around 24-48 hours of ‘standby’ (or operation) are required to
stabilise performance. Therefore, ‘standby’ does not shut down the solid-state sections, only the valves.
7
Contents
WARNINGS 3
Section 1 - Unpacking and Setup 9
1a. Unpacking 10
1b. Setup 11
Section 2 - Component Overview 13
2a. Start-Up 17
Section 3 - Advanced Features 27
3a. OptiSample® 27
3b. DAC Input 29
3c. IR Link 29
3d. Crowbar ‘Muting’ Circuit 29
3e. OptiMains® Protection for Excessive Under/Over-Voltages 30
8
Section 4 - Technical Features 31
Appendix - Troubleshooting & Maintanence 32
Maintenance 33
Specifications 35
9
Figure 1.1 - Front Panel of the CD-77
Section 1 - Unpacking and Setup
Figure 1.2 - Rear Panel of the CD-77
COMPACT DISK PROCESSOR CD 77
-
Analog
Outputs
Analog
Outputs
RL
USB Input
IR Link
Power
On Off
90V 135V
190V
260V
～
AC IN
CLASS 1
LASER PRODUCT
No User Serviceable Components Inside.
,
.
.
For service contact your Authorised
Dealer or Distributor Any modifications to
this equipment will void all warranties
CAUTION ATTENTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
RISQUE DE CHOC ELECTRIQUE
NE PAS OUVRIR
!
SERIAL NO.
Designed and Engineered in Great Britain
Compact Disk Processor CD 77
-
10
Thank you for purchasing this AMR reference class component.
We hope you derive as much pleasure from using this component as we have enjoyed making it for you.
1a. Unpacking
This section refers to the unpacking of the CD-77 and its subsequent setup.
Upon unpacking, please find:
i. CD-77 Reference Class Compact Disk Processor
ii. Aluminium CD puck
iii. RC-77 Remote Commander (with 2 x AAA batteries)
iv. PC-77 OptiLink® Reference mains power cable
v. IC-77 OptiLink® Reference interconnect cable (RCA-type)
vi. CD-77 Owner’s Manual
vii. Quick-Start Card
viii. AMR Warranty Card
ix. Aluminium Professional Flightcase
Please ensure that all items are present. Should an item be missing, please contact yourAMR distributor/dealer.
Please that check
all contents are
present
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2
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