Sony CDX-7520 User's Manual
Contents
1. Note on a 12 cm disc If you leave the disc putting into the slot after pressing the 4 button the disc will be inserted automatically in fifteen Seconds to protect the disc If you press the e i button within the fifteen seconds the disc will be inserted and the disc play start from the beginning of the disc Keeping the button pressed The time counter displays when you have passed the end of the disc To return to a normal display press pee oF button 11 Enjoying the Variety of CD Playing Modes Playing the First Portions of Selections Kf you press the INTRO button during the dd play the first ten seconds of al ections ee E OE wa he need ih nir If you find a desired selection press the button to cancel the mode The play continues Playing Repeatedly Repeat Play You can repeat a single selection To cancel Press the button again Playing in Random Order shutfie Play You can play the selections in random order To cancel Press the button again 12 Memorizing the Stations Automatically Memory Function You can memorize a total of 24 stations 6 stations on each band FM1 FM2 FM3 or AM one on each preset button In what order are stations memorized The unit scans the band from the lowest frequency to the Press to select a desired band highest frequency twice At the A first cycle the unit scans only The tuner turns on at the same tim2. Troubleshooting guide 20 Features DIN sized mobile CD player and FM AM tuner CD section Provided with 8 times over sampling digital filter for dynamic sound reproduction Quick recovery mechanism against sound skipping When strong vibration causes sound skipping the player quickly relocate the point where the play was interrupted A Sinch 8 cm CD can be played without an adaptor Tuner section Automatic memory function stores a total of 24 stations 18 FM and 6 AM stations in memory Easy and quick tuning with preset buttons while driving Others Fader control for adjusting the volume of the from and rear speakers in 4 speaker system Line outputs and auxiliary inputs for connecting an optional power amplifier equalizer and a cassette player Two color variation amber or green for illumination Precautions Before operating the unit for the first time or after replacing the battery press the reset button page 6 with a ball point pen etc then start operating the unit If your car was parked in direct sunlight and there was a considerable rise in temperature inside the car allow the unit to cool off before operating If no power is being supplied to the unit check the connections first If everything is in order check the fuse If no sound comes from the speakers of a 2 speaker system set the fader control to the c
3. CD system offers a wide dynamic range the peaks of the high level inputs are recorded with high fidelity and the noise level is very low Do not turn up the volume while listening to a portion with no audio signals or very low level inputs If you do the speakers may be damaged when a peak level portion is played 10 To stop the disc play Press OFF To restart playing from the same point press D gt n Press p gt B The display when you press tho t m Track number To restart the play from the same point press p gt ti Press 5 Even if you set the ignition key to the off d Position you can remove the disc by pressing 4 amp Locating a Particular Selection Locating a selection in sequence Automatic Music Sensor You can locate the beginning of a desired selection during play Press repeatedly to locale previous selections or selections ahead Locating a Particular Point in a Selection Locating a point in sequence Manual Search You can locate a particular point in a selection during play by monitoring the high speed sound To go ahead at high ope eee as Locating the Beginning of the Disc Press t You can quickly locate the beginning of the disc being played Note on a 3 Inch 8 cm CD You can play a 3 inch 8 cm CD without an adaptor if you press the FM or AM button during the d sc play The disc play will stop auto matically and the radio sound will be heard
4. your eyes on the road and use the automatic tuning or the memory preset tuning Specifications CD player section System Compact disc digital audio system Frequency response 10 20 000 Hz 3 dB SignaHo noise ratio 90 dB Wow and flutter Below measurable limit Laser Diode Properties Material GaAlAs Wavelength 780 nm Emission Duration Continuous Laser out put Power Less than 446 W This output is the value measured at a distance of 200 mm from the objective fens surface on the Optical Pick up Block FM AM external antenna connector General Power requirements 12 V DC car battery negative Current drain 800 mA CD playback 2 A during disc loading or eject Operating temperature 10 C to 50 C 15 F to 120 F Dimensions Approx 180 x 50 x 146 mm whid Tax 2x 5 in Weight Approx 1 7 kg 3 12 02 Tone controls Bass 10 dB 100 Hz Treble 10 dB 10 kHz Supplied accessories Mounting hardware 1 set Optional accessories Mounting kit Cleaning cloth XP CD1 AM 530 1 710 kHz 107 MHz 12 dBf 1 1 M75 ohms Design and specifications subject to change without notice 18 Fuse Replacement f the fuse blows check the power connection ind replace the fuse If the fuse blows again fter replacement there may be internal nalfunction In this case consult your nearest sony dealer Narning Jse the specified ampere fuse only Jse o
5. SONY 3 752 147 21 1 FM AM Compact Disc Player aise CDX 7520 Operating Instructions Page 2 Before operating the unit please read this manual thoroughly and retain it for future reference Mode d emploi page 23 Avant la mise en service de cet appareil pri re de lire attentivement ce mode d emploi que l on conservera pour toute r f rence ult rieure D ae SEEK TE CD le es For installation and connection see the supplied installation connections manual En ce qui concerne l installation et les connexions se reporter au manuel d installationvconnexions fourni 1990 by Sony Corporation c For the Customers in the United States Owner s Record The model and serial numbers are loceted at the bottom ol the unit Record the serial number in the space provided below Refer to these numbers whenever you call upon your Sony dealer regarding this product Model No CDX 7520 Serial No CAUTION The use of optical instruments with this product will increase eye hazard INFORMATION This equipmert generates and uses radio frequency energy and if not installed and used property that is in strict accordance with the manufacturer s instructions may cause interference to radio and television reception It has been type tested and found to comply with the limits for a Class B computing device in accordance with the specifications in Subpart J of Part 15 of FCC Rules which are designe
6. c disc will be ejected automatically insert the disc correctly A CD ROM disc is inserted Remove the disc The temperature is too high and the protection circuit has Wait until the unit cools 20
7. d to provide reasonable protection against such interference in a residential installation However there is no guarantee that interference will not occur in a particular installation If this equipment does cause interference to radio or television reception which can be determined by tuming the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures Reorient the receiving antenna Relocate the equipment with respect to the receiver Move the equipment away from the receiver Plug the equipment into a different outlet so that equipment and receiver are on different branch circuits If necessary the user should consult the dealer or an experienced radio television technician for additional suggestions The user may find the following booklet prepared by the Federal Communications Commission helpful How to identify and Resolve Radio TV Interference Problems This booklet is available from the US Government Printing Office Washington DC 20402 Stock No 004 000 00345 4 Table of Contents Features naana aaan aaraa anaa 3 Precautions 0000 0 000000 0000 04 4 Location of controls 2020000000000 6 Memorizing stations automatically 13 Memorizing only desired stations manually 14 Tuning in automatically 0 00000 15 Tuning in manually 17 Specifications 00000 000022 18 Fuse replacement L Loana 19
8. e the stations with considerably strong signals At the next cycle the minimum level of the signal strength that can be tuned will be lowered Frequency range of the FMt FM2 and FM3 bands is Press for more than two seconds same The unit starts scanning the selected band and memorizes the tuned stations on the preset buttons 1 to 6 automatically Surveying What is Being Broadcasted on the Preset Stations Each memorized station will be scanned for five seconds in order When the broadcast of the memorized station is too weak it Press lightly cannot be received 12 Hece DUO gt s Memorizing Only Desired Stations Manually Use this method to memorize Stations not memorized by the automatic memroy function important Press to select a desired band Each preset button has only one memory for a band The The tuner turns on at the same time previously memorized station will be erased when you enter a new station of the same band on the same preset o number button Press to tune in a desired station page 15 or 17 Ea Sea Press for more than two seconds Ex To memorize on the preset button 1 The number of the pressed preset button will be displayed and the station will be memorized Receiving the Preset Station 1 Select a desired band 2 Press a desired preset button lightly 14 SCL Tuning in Automatically d Press to select a desired band l
9. enter position As the laser beam used in this compact disc player is harmful to the eyes do not attempt to disassemble the cabinet Refer servicing to qualified personnel only Notes on moisture condensation On a rainy day or in a very damp area moisture may condense on the lenses inside the unit Should this occur the unit will not operate In this case remove the disc and wait for about an hour until the moisture evaporates If you have any question or problem conceming your unit that is not covered in this manual please consult your nearest Sony dealer Notes on discs Handle the disc by its edge and to keep the disc clean do not touch the surface This way Do not stick paper or tape Not this way Do not expose the disc to direct sunlight or heat sources such as hot air ducts or leave it in a car parked in direct sunlight where there can be a considerable rise in the temperature Cleaning discs Before playing clean the disc with an optional cleaning cloth Wipe the disc in the direction of the arrows Do not use solvents such as benzine thinner commercially available cleaners or antistatic spray intended for analog discs Location of Controls reter to the pages indicated in 1 OFF power off button 2 Reset button 3 Display window 4 SELECT volume balance bass treble fader select button 5 Disc insertion slot 6 amp eject button ILL illu
10. f a higher amperage fuse may cause serious damage 19 Troubleshooting Guide The following checks will assist in the correction of most problems which you may encounter with your unit Before going through the check list below first refer back to the connection and operating procedures CD player section Play does not begin The unit is in the pause mode gt Press p IM Dusty or defective disc The ambient temperature is more than 50 C 120 F A disc is already loaded The disc is inserted with the label surface downwards The built in microprocessor malfunctions Press the reset button The unit is installed at an angle of more than 20 The unit is not installed on the sturdy part of a car Dusty or defective disc Disc cannot be loaded or the disc is automatically ejected The operation buttons do not work The sound skips due to vibration Tuner section Preset tuning is not possible Memorize the correct frequency e The broadcast is weak gt Use manual tuning Automatic tuning is not possible The broadcast is weak Use manual tuning The STEREO indicator flickers Tune in precisely The broadcast is weak gt Press the SENS button to display the MONO indicator About the error code The following codes flicker for about five seconds The disc is dirty or inserted upside down In this case the Clean the dis
11. mination color change button Press io change the color of illumination Two colors green and amber are available MUTE button Press to momentarily mute the sound Press again to restore the same level as before 9 4 buttons LOUD loudness button Press to reinforce bass and treble especially when listening at low volume To disengage the button press it again 11 SENS button 12 M SCAN memory scan button 9 A MEM automatic memory t3 Number During disc play During radio reception 1 4 skipping to the top button INTRO button REPEAT button 9 SHUF shuffle button p During disc play During radio reception MANU lt gt manual search button MANU manual tuning button AMS i ibutton SEEK automatic tuning button CD amp n disc play pause button Q9 AM tuner on band select button D FM tuner on band select button B Preset number buttons Automatic Music Sensor Location of Controls If your car ignition key does not have the accessory position The illumination on the front panel is tactory set to be tumed on even when not playing the unit However this setting may cause the car battery to run down when the unit is used in the car which has no accessory position To avoid this when using the unit in such a car set the selector located on the bottom to OFF then press the reset but
12. t 1 The tuner turns on at the same time Lo Lo 2 Press to start scanning For lower frequencies The scanning automatically stops when a station is tuned in Repeat this step until a desired station is tuned in For higher frequencies 3 Press to adjust the volume Use this method when you do not know the frequency of desired stations 15 Tuning in Automatically When there are too many stations and the The SENS button funcion scanning stops too frequently during When receiving an FM station automatic tuning Press ses so that the LOCAL indicator appears on the side window i Press SENS D e sien ah cA aeons signals can be tuned in When the FM stereo program is too weak and noisy Press sens 0 that the MONO indicator appears on the gjari window The noise m m duced The sound will be monaural instead When an FM stereo program of sufficient signal strength is tuned in LEA SE e D m a i Press SENS again The STEREO indicator appears and the program is automatically received in stereo 16 ing in Manually Tun Press to select a desired band The tuner tums on at the same time Lo Le Press to select a desired station KS EU For lower frequencies For higher frequencies To change the frequency rapidly keep the button pressed Press to adjust the volume ee For your safety while driving Keep
13. ton You can make the illumination tumed off when not playing the unit lal Change the position with a ball point pen or similar objects Adjusting a Sound Controlling the volume balance bass treble fader button normally functions as the volume control Adjust the level within three seconds after selecting the desired control mode with the SELECT button Otherwise the mode goes back to the volume control mode k Control 7 For less bass Each time the SELECT button is pressed the display indication will change as follows For more bass For less treble For more treble To decrease the right speaker volume To decrease the left speaker volume To decrease the rear speaker volume To decrease the front speaker volume For less volume For more volume Kur ee Sieh ay Playing a Disc Notes Do not insert a disc with the labe surface down Doing so may damage the unit Do not try to insert another disc when one has been already inserted Doing so may damage the unit The disc is loaded into the unit and play will start from the beginning of the disc When a disc is already inserted At the end of the disc The track number returns to 1 and play will be repeated from D 7 Wc the beginning of the disc Track number Elapsed of the playing time Selection of the selection Important Since the
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