Abbingdon Music Research CD-77 manuale d’uso

CD-77 Reference Class Comp act Disk Processor Owner ’ s Manual[...]

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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 may cause undesired operation. FCC W ARNING: Changes[...]

4 This products complies with the EMC Directive (89/336/EEC) and the Low V oltage 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 internat ional standards and regulations): o EN55022 (CISPR 22) - Electrom[...]

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, stand, tripod, bracket or table as the component[...]

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 has been spilled into the component; C. The componen[...]

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 situated on a bed, sofa, rug or similar surface tha[...]

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. T o prevent fire or shock hazard, do not place vessels filled with liquids, such as vases, on the component. T ouch-Sensitive Buttons On the front fasc[...]

9 Content s W ARNINGS 5 Section 1 - Unp acking and Setup 11 1a . Unp acking 1 2 1b. Setup 13 Section 2 - Component Overview 15 2 a. S tart-Up 19 Section 3 - Advanced Features 29 3a . OptiSample® 2 9 3 b . DAC Input 3 1 3 c . IR Link 31 3 d. Crowbar ‘Muting’ Circuit 3 1 3 e. OptiMains® Protection for Excessive Under/Over-V oltages 3 2[...]

10 Section 4 - T echnical Features 33 Appendix - T roubleshooting & Maint anence 34 T roubleshooting 3 4 Maintenance 35 Specifications 37[...]

11 Figure 1.1 - Front Panel of the CD-77 Section 1 - Unp acking 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 . , . . For service contact your Authorised Dealer or [...]

12 Thank you for purchasing this AMR reference class component. W e hope you derive as much pleasure from using this component as we have enjoyed making it for you. 1a. Unp acking This section refers to the unpacking of the CD-77 and its subsequent setup. Upon unpacking, please find: i. CD-77 Refer ence Class Compact Disk Pr ocessor . ii. Aluminium[...]

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 260V ～ AC IN CLASS 1 LASER PRODUCT No User Servicea[...]

14 i. Unpack the CD-77 and remove the pr otective foam insert inside the CD well. ii. Remove the pr otective sheet fr om the acrylic fr ont panel. iii. Ensur e the CD-77 is located on a level and solid surface capable of supporting at least 50 kgs. i v . Using the spirit level located inside the CD well, check the CD-77 is on a level platform v. Co[...]

15 Figure 2.1 - CD-77 Front Fascia Section 2 - Component Overview F1. ST ANDBY button: to place the CD-77 in active or standby mode. F2. REV/REVERSE button: to select the pr evious track/fast r everse. F3. PLA Y/P AUSE button: to initiate playback/pause once a compact disk has been corr ectly loaded. F4. FWD/NEXT button: to select the following tra[...]

16 Figure 2.2 - CD-77 Rear Panel R1. RCA Outputs: for the connection RCA inter connects. R2. XLR Outputs: for the connection of XLR inter connects. R3. USB Input*: for the connection of a USB signal input. R4. INFRA-RED Link*: for the connection of a wir eline r emote control. R5. POWER Switch: to switch on mains electricity to the CD-77. R1 1. IEC[...]

17 Figure 2.3 - RC-77 Remote Control RC-77: battery installation T o 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 battery compartment. Replace the battery compar[...]

18 RC1. Numeric Pad: to enter track selections. RC2. REPEA T button: to select a r epeat mode. RC3. A-B button: to select an excerpt fr om a track for r epeat. RC4. DAC button: with a USB connection made, to bypass the transport and enter DAC mode. RC5. ST ANDBY button: to place the CD-77 in active or standby mode. RC6. REV/REVERSE button: to fast [...]

19 2. St art-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. T o switch the mains power OFF , press again and release. Always W AIT at least 20 seconds before switching on again. This is to enable the OptiMains ® circuit to shutdown properly . The display will light up to indicat[...]

20 2. Standby After start-up, pressing the ST ANDBY button (F1) on either the front fascia or the RC-77 (RC5), the CD-77 will switch to ST ANDBY mode. Standby By pressing this button again, the CD-77 will commence warm-up to prepare for operation. Under ST ANDBY mode, power to CD-77’ s digital circuit is kept active in order to provide the optimu[...]

21 Upon closing the door , play will automatically commence from T rack 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 PLA Y/P AUSE button (RC8) on the RC-77 remote control. NOTE: The CD-77 has been designed to play all types of compact discs includ[...]

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 forward until the button is released. 8. REV/Reve[...]

23 10. Repeat (RC-77 only) If the REPEA T button (RC2) is pressed once: Repeat One will be displayed and the current track will be repeated. If the REPEA T 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-77 will revert to T rack 1. 1 1. A-B (RC-77 only[...]

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 been identified and repeat will commence. T[...]

25 v. Go to ‘Contr ol Panel’ > ‘System’ > ‘Har dwar e’ > ‘Device Manager ’. In ‘Device Manager ’ wait until the personal computer in ‘Har dwar e’ has r ecognised the CD-77 as a ‘USB Audio Device’. This is found under the ‘Sound, video and game contr ollers’ category . v i. Go to ‘Control Panel’ > ‘S[...]

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 button (RC13) once: Intro Scan 10s will be disp[...]

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 keypad (RC1). Program No: 02 will then be display[...]

28 18. Shuffle (RC-77 only) Press the SHUFFLE button (RC15) and the playback of music tracks will be randomly selected.[...]

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) on the RC-77. The sampling options are: 1[...]

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 4x is similar to that of Oversampling 2x; except [...]

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, the DAC section of the compact disk processor wil[...]

32 3e. OptiMains ® Protection for Excessive Under/Over-V oltages 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 ® ). W ith almost every country throughout the world[...]

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. OptiSignal® conditioning circuit has optimised every si[...]

34 Appendix - T roubleshooting & Maint anence 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 disc • clean the CD disc er[...]

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 from the disc and convert it into an electronic sign[...]

36 iii. CD-R & CD-RW Audio Discs The CD-77 can play CD-R & CD-R W audio discs that have been recorded on a computer or CD-recorder . The quality of CD-R & CD-R W audio discs varies widely which may affect playability . iv . Handling Compact Disks Always handle Compact Discs with care. The playback of a disc will not be impaired by small[...]

37 Figure S.1 - Specifications T a ble Transport Disk Drive: T oploading 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 • Upsampling 192kHz Digital Audio In[...]

38 Output voltage (Digital Full Scale) : > 2V Output Impedance: < 150 Ohm Frequency Response: 20Hz to 20 kHz +0.0, -0.5dB Signal-to-noise ratio ‘A ’ W eighted: > 100 dB T otal Harmonic Dist. + Noise (THD+N): < 0.3% Dynamic range: > 90 dB Channel separation: > 90 dB Power consumption: Standby: 45 W Power on: 9 0W Rated voltage:[...]

39 Abbingdon Music Research is a subsidiary of the Abbingdon Global Group 22 Notting Hill Gate; London; W11 3JE; United Kingdom; T el: +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) W eight: CD-77: 62 lbs/28 kg Shipped: 107 lbs/49 kg Unless[...]