A1 CD PRO A1 SERIES TOP LOADING COMPACT DISC PLAYER INSTRUCTIONS FOR USE Thank you for purchasing the Musical Fidelity A1 CD PRO This model uses a professional quality top-loading CD transport, ultra low jitter 24 Bit DAC technology and further jitter reduction techniques to achieve both an excellent technical specification and unparalleled CD sound quality. The A1 is a perfect answer to CD requirements in a beautifully engineered package, complementing the A1 series components.
A1 PRO CD CONTENTS PAGE 3,4 Safety information - Laser product labelling Laser type Radio-frequency interference 5 General advice - Installation precautions User information 6 Item disposal information - EU disposal information 7 Installation - Introduction Installation Audio connection Notes on using compact discs Cleaning 8,9 Facilities and connections - Illustrations - front and rear panels 10 Remote control - Operation and illustration 11,12 CD basic operation - Loading, pla
A1 PRO CD SAFETY INFORMATION CLASS 1 LASER PRODUCT The A1 is a CD player which has been designed and manufactured according to FDA regulations "title 21, CFR, chapter 1, sub-chapter J, based on the Radiation Control for Health and Safety Act of 1968", and is classified as a Class 1 laser product. There is no hazardous radiation during normal use because invisible radiation emitted inside this product is completely confined within the protective housing.
A1 PRO CD SAFETY INFORMATION LASER INFORMATION: Optical pick-up : Manufacturer : Sharp Pick-up type : GH6C005B Wavelength : 780nm RADIO - FREQUENCY INTERFERENCE (RFI) This equipment uses and can radiate radio frequency energy, and if not installed and operated in accordance with the instructions, may cause interference to radio communications.
A1 PRO CD GENERAL ADVICE INSTALLATION PRECAUTIONS and USER INFORMATION Your new A1 is designed and built to provide trouble-free performance, but as with all electronic devices it is necessary to observe a few precautions: Heed all warnings shown on the back of the product. Only connect the A1 to a mains outlet having the same voltage as marked at the back of the unit. Always ensure that when disconnecting and reconnecting your audio equipment the mains supply is switched off.
A1 PRO CD DISPOSAL The crossed out wheeled bin label that appears on the back panel of the product indicates that the product must not be disposed of as normal household waste. To prevent possible harm to the environment please separate the product from other waste to ensure that it can be recycled in an environmentally safe manner. Please contact your local government office or your retailer for available collection facilities.
A1 PRO CD INTRODUCTION Congratulations on the purchase of your new A1 CD player. The A1 CD has extremely low jitter, vanishingly low distortion, exemplary linearity and ultra low noise. Its case design complements the A1 series components which include an integrated amplifier all in the same convenient size. Great attention has been paid to internal layout, isolating each circuit section to prevent possible interaction.
A1 PRO CD FACILITIES AND CONNECTION FRONT PANEL 1 2 3 4 1. DISPLAY 2. POWER on/off switch 3. PLAY button 4. PAUSE button 5 6 7 8 5. STOP button 6. PREVIOUS button 7. NEXT button 8. IR lens REAR PANEL 9 10 11 9. DIGITAL OPTICAL output 10. DIGITAL COAXIAL output Issue 4: 6th May 2008 12 11. LEFT AND RIGHT audio outputs 12.
A1 PRO CD REMOTE CONTROL The universal remote control shown below enables functions from this and related units to be operated from a convenient distance. Equivalent buttons on the remote control have the same functions as those on the front panel of the unit. Other functions are only available by remote control. As the handset uses an invisible infra-red light beam, the front edge must be pointed directly towards the receiver window at the front of the player, without visual obstruction between them.
A1 PRO CD CD BASIC OPERATION LOADING AND PLAYING COMPACT DISCS NO DISC To load a disc, manually lift the lid up from the front lip, to allow access to the mechanism. If mains power to the unit is switched on with a disc already loaded, it will automatically search for the disc. TRACK SELECTION (Remote control) Simply press the PLAY button to start a CD playing from the first track.
A1 PRO CD CD BASIC OPERATION PAUSE Pressing the PLAY/PAUSE button on the front or top panel whilst a disc is playing pauses playback of the disc. PAUSE appears in the display windows instead of PLAY. The disc will continue spinning, but the track does not advance and the CD's output is muted. PAUSE 1 0:03 Pressing PLAY/PAUSE again resumes playback from the same place. PAUSE (Remote control) On the remote control, PLAY and PAUSE buttons have separate functions at each end of the same button.
A1 PRO CD CD SPECIAL FEATURES REPEAT PLAYBACK The REPEAT button on the remote control allows the repeated playback of either one track or all tracks on the disc. By pressing the REPEAT button once, only the current track is repeated, and the display shows PLAY 1 repeat track 0:12 If the REPEAT button is pressed a second time, “repeat disc” is displayed instead, and the entire disc is then played repeatedly. PLAY 1 repeat disk 0:24 Pressing REPEAT a third time cancels repeat mode.
A1 PRO CD CD SPECIAL FEATURES Press PROGRAM again on the remote control - the next program step is selected, (program 2) and the track number revert to 0 ready for a new entry. STOP 74 program 2 track 0 Continue entering track numbers in the same way up to a maximum of 25. If more than 25 tracks are attempted the memory will not accept any extra ones, and the display reverts to “program 1”.
A1 PRO CD CD PROBLEMS? Basic problem-solving with a CD player is similar to troubleshooting other electrical or electronic equipment.
A1 PRO CD DAC: MANUAL REVISION Output impedance DAC circuit Total correlated jitter Linearity Output digital 0dB level Frequency response Channel separation Signal / noise ratio Total harmonic distortion 50 Ohms 24 bit Delta-Sigma (Bit stream) dual differential 8X over sampling < 135 pS < 0.1dB down to -96dB 2.
A1 PRO CD RELEASE MANUAL REVISION DATE CHANGES Issue 1 28th January 2008 1st release Issue 2 11th March 2008 Remote control page updated Issue 3 30th April 2008 Magnetic puck added Issue 4 6th May 2008 Specification page updated Issue 4: 6th May 2008 Page 16 of 16
