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  5. Owner's Manual

Abbingdon Music Research CD-77 Owner's Manual

Other manuals for CD-77: Owner's Manual, Owner's Manual
Manual is about: Reference Class Compact Disk Processor

Summary of CD-77

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    Cd-77 reference class compact disk processor owner’s manual.

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    2.

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    3 fcc declaration of conformity - united states only this device complies with part 15 of the fcc rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that ma...

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    4 this products complies with the emc directive (89/336/eec) and the low voltage directive (73/23/eec) issued by the commission of the european community. Compliance with these directives implies conformity to the following european norms (in parentheses are the equivalent international standards an...

  • Page 5: Warnings

    5 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 over 35 kilograms. Do not place this component on an unstable cart...

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    6 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 qualified amr service personnel when: a. The power cable or the power input socket has been damaged; b. Objects have fallen, or liquid ha...

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    7 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 si...

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    8 horizontal position only. 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 compo...

  • Page 9: Contents

    9 contents warnings 5 section 1 - unpacking and setup 11 1a. Unpacking 12 1b. Setup 13 section 2 - component overview 15 2a. Start-up 19 section 3 - advanced features 29 3a. Optisample® 29 3b. Dac input 31 3c. Ir link 31 3d. Crowbar ‘muting’ circuit 31 3e. Optimains® protection for excessive under/o...

  • Page 10: Specifications

    10 section 4 - technical features 33 appendix - troubleshooting & maintanence 34 troubleshooting 34 maintenance 35 specifications 37.

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    11 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 r l usb input ir link power on off 90v 135v 190v 260v ～ ac in class 1 laser product no user serviceable components inside. , . . ...

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    12 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 referenc...

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    13 1b. Setup the following diagram graphically illustrates the standard connection of the cd-77 in a two-channel system. Figure 1.3 - cd-77 system setup (cd-77 + am-77 + ls-77) system connec- tion using xlr connectors analog outputs analog outputs r l usb input ir link power on off 90v 135v 190v 260...

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    14 i. Unpack the cd-77 and remove the protective foam insert inside the cd well. Ii. Remove the protective sheet from the acrylic front panel. Iii. Ensure the cd-77 is located on a level and solid surface capable of supporting at least 50 kgs. Iv. Using the spirit level located inside the cd well, c...

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    15 figure 2.1 - cd-77 front fascia section 2 - component overview f1. Standby button: to place the cd-77 in active or standby mode. F2. Rev/reverse button: to select the previous track/fast reverse. F3. Play/pause button: to initiate playback/pause once a compact disk has been correctly loaded. F4. ...

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    16 figure 2.2 - cd-77 rear panel r1. Rca outputs: for the connection rca interconnects. R2. Xlr outputs: for the connection of xlr interconnects. R3. Usb input*: for the connection of a usb signal input. R4. Infra-red link*: for the connection of a wireline remote control. R5. Power switch: to switc...

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    17 figure 2.3 - rc-77 remote control rc-77: battery installation to install the 2 x aaa batteries, using a philips screwdriver, remove the four screws at the four corners of the rear bat- tery compartment. Install the 2 x aaa batteries in the correct direction accord- ing to the baseplate inside the...

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    18 rc1. Numeric pad: to enter track selections. Rc2. Repeat button: to select a repeat mode. Rc3. A-b button: to select an excerpt from a track for repeat. Rc4. Dac button: with a usb connection made, to bypass the transport and enter dac mode. Rc5. Standby button: to place the cd-77 in active or st...

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    19 2. Start-up 1. Power on/off press the ‘power’ switch (r5) at the rear of the cd-77 to switch mains power on to the cd-77. To switch the mains power off, press again and release. Always wait at least 20 seconds before switching on again. This is to enable the optimains® circuit to shutdown properl...

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    20 2. Standby after start-up, pressing the standby button (f1) on either the front fascia or the rc-77 (rc5), the cd-77 will switch to standby mode. Standby by pressing this button again, the cd-77 will commence warm-up to prepare for operation. Under standby mode, power to cd-77’s digital circuit i...

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    21 upon closing the door, play will automatically commence from track 1. This autoplay feature can be enabled/ disabled by simultaneously pressing the stop button (f5) on the front fascia of the cd-77 and pressing the play/pause button (rc8) on the rc-77 remote control. Note: the cd-77 has been desi...

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    22 6. Stop at any time, pressing the stop button (f3) once on either the front fascia or the rc-77 (rc7) will halt playback. 7. Fwd/next at any time, pressing fwd (f4) once on either the front fascia or the rc-77, the next track will be selected. By holding down fwd (f4) or (rc9), playback will fast...

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    23 10. Repeat (rc-77 only) if the repeat button (rc2) is pressed once: repeat one will be displayed and the current track will be repeated. If the repeat button (rc2) is pressed again: repeat all will be displayed: once the last track of the compact disc has been played, instead of stopping, the cd-...

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    24 repeat a-b will be displayed with the letter ‘b’ flashing. This means that it has commenced the selection of that passage of music. By pressing the a-b button (rc3) again: repeat a-b will be displayed with the letter ‘b’ no longer flashing. This is to confirm the particular passage of music has b...

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    25 v. Go to ‘control panel’ > ‘system’ > ‘hardware’ > ‘device manager’. In ‘device manager’ wait until the personal computer in ‘hardware’ has recognised the cd-77 as a ‘usb audio device’. This is found under the ‘sound, video and game controllers’ category. Vi. Go to ‘control panel’ > ‘sounds and a...

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    26 15. Time (rc-77 only) normally the display will show the time elapsed since the beginning of the current track but pressing the time button (rc12) on the rc-77, the display will show and cycle through: elapsed track time > track remaining > total remaining 16. Scan (rc-77 only) press the scan but...

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    27 by pressing the scan button again: intro scan 30s will be displayed and the first 30 seconds of every track will be played until all tracks have been played. 17. Program (rc-77 only) press the program button (rc13) and: program no: 01 will be displayed. Thereafter select the track via the numeric...

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    28 18. Shuffle (rc-77 only) press the shuffle button (rc15) and the playback of music tracks will be randomly selected..

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    29 the following section describes and where relevant, provides instructions to access the cd-77’s advanced features. 3a. Optisample® the cd-77 compact disk processor offers 6 user-selectable methods of sampling that can be ‘cycled through’ during playback by pressing the optisample® button (rc10) o...

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    30 a large degree of digital manipulation. The original data from the cd is in effect discarded and re-placed with a re-calculated version. This new version of the music is mainly linearly scaled up using a whole number as scaling factor and resolution/edge enhanced. The sonic result of oversampling...

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    31 an s/pdif link was not offered as this method results in exces- sive sonic degradation 3b. Dac input it is possible to allow playback of a large library of music to an exceptionally high standard through the cd-77’s dac option (see section 2 item 12 for connection details). Under the dac mode, th...

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    32 3e. Optimains® protection for excessive under/over-voltages the cd-77 is fitted with the optimains® system to condition and adjust the incoming mains supply for the best operation under all normal mains conditions (including situations that will cause audible problems without opti- mains®). With ...

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    33 the following section provides a brief explanation of the most salient technical features of the cd-77. The original philips tda1541a digital-to-analogue converter in amr’s testing and auditioning remains to-date, the most musically satisfying chipset for digital-to-analogue conversion. Optisigna...

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    34 appendix - troubleshooting & maintanence figure a.1 troubleshooting guide symptom possible cause solution ‘disc error’ or • dirty or heavily scratched cd disc • clean the cd disc ‘no disc’ is shown • wrong disc type • replace with a proper cd disc disc spinning • dirty or heavily scratched cd dis...

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    35 maintenance i. About the optical pickup the cd-77 uses a solid-state semi-conductor diode laser, mounted on a tracking servo-mechanism to play the disc. The laser illuminates the track of microscopic pits representing the digital data bits, while photo-diodes detect the reflected illumination fro...

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    36 iii. Cd-r & cd-rw audio discs the cd-77 can play cd-r & cd-rw audio discs that have been recorded on a computer or cd-recorder. The quality of cd-r & cd-rw audio discs varies widely which may affect playability. Iv. Handling compact disks always handle compact discs with care. The playback of a d...

  • Page 37: Specifications

    37 figure s.1 - specifications table transport disk drive: toploading proprietary amr transport mechanism operation modes: • direct master i; no digital or analogue filter • direct master ii; no digital filter, anti-sin(x)/(x) analogue filter • oversampling 2x • oversampling 4x • upsampling 96khz • ...

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    38 output voltage (digital full scale) : > 2v output impedance: frequency response: 20hz to 20 khz +0.0, -0.5db signal-to-noise ratio ‘a’ weighted: > 100 db total harmonic dist. + noise (thd+n): dynamic range: > 90 db channel separation: > 90 db power consumption: standby: 45 w power on: 90w rated v...

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    39 abbingdon music research is a subsidiary of the abbingdon global group 22 notting hill gate; london; w11 3je; united kingdom; tel: +44 (0) 870 420 5505; fax: +44 (0) 700 596 1065 dimensions: 17.9in w by 6.2in h by 18.3in d 46cm w by 16cm h by 47cm d 62 cm w by 30cm h by 78cm d (shipped) weight: c...