Operating Instructions Car Radio
Contents
1. cancellation effects often happen in cities even when close to the radio station Overloading When driving close to strong AM or FM transmitters the signal may be too strong causing distortion and crosstalk For reducing sensitivity push button to disengage the sensitivity selector switch If necessary lower your antenna telescopic types only leaving out only the lower most section Capture FM capture is similar to overloading When listening to a weak station a strong station close on the dial may cut in without turning the dial In such case lower the antenna telescopic types only Ignition or accessory interference Flutter distortion and background noise can be caused by the igni tion system or accessories in the car Such noise can also be caused by outside sources or other cars nearby Check for interference from your own car by moving away from other sources of interference Care of antenna If your antenna is of the telescopic type clean it periodically with chrome cleaner and lightly lubricate with an oiled cloth A clean antenna is easy to push in without kinking Dirt may also damage the mechanism of a power operated antenna If the power operated antenna fails to go up and down properly the telescopic sections must be cleaned Do not try to force the aerial up or down by hand About cassette tapes All tapes can be used in your cassette player regardless whether chrome dioxide fer2. 48 km depending on station power Aside from the wavelength of the signal signal strength will be affected by the height of the transmitting antenna station power and conditions between radio station and car radio Best reception is when the car antenna can see the station antenna but that is rarely the case Normally the signal picked up by the car antenna has been reflected by many solid objects This makes the transmission path longer or shorter and delays or weakens the signal Fading Signal fading is typical on AM when driving through an underpass The same fading happens if the radio is too far away or the car anten na is not pulled out FM does not fade as much as AM In the same location where AM fades FM may come in strong and clear because the shorter waves are reflected by other metal parts into the shade Flutter fence effect In weak FM reception areas you may hear short pops of hissing back ground noise with otherwise good reception of the radio program This flutter noise is like the sound burst that happens when pas sing poles or posts close to the side of the road Flutter may also cause the stereo light to flicker because the signal has fallen below the minimum level to operate the stereo decoder Multi path cancellation Flutter and distortion is also caused by a mixing of several signals coming from different directions as a result of reflection from various objects Mixing or
3. button to change the tape direction The tape direction is indicated by the tape direction indicators next to the button When the tape reaches its end the tape direction changes auto matically Headphone connection With the headphone connection on the rear shelf the rear passengers can choose between loudspeakers or headphones The changeover switch is on the headphone connection Switch up Loudspeakers on Switch down Headphones on The volume is regulated with the volume control or with the fader control G Suitable headphones can be obtained from your Dealer This equipment is only standard on certain models Radio reception in a car Unlike a radio at home a car radio operates under constantly chan ging conditions Reception may be perfect at one location but poor just a short distance away Even opening and closing a car door can sometimes change reception from perfect to poor Radio waves Radio signals travel as fast as light Depending on their wavelength signals are affected by weather mountains buildings tunnels and other barriers AM radio waves 530 to 1630 kHz travel along the curvature of the earth AM waves have a maximum range of approx 150 miles depen ding on station power FM radio waves 88 to 108 MHz do not follow the curvature of the earth and are not reflected by the upper atmosphere as are lower fre quency radio waves FM waves have a maximum range of approx 30 miles or
4. Operating Instructions Car Radio Rothenburg US Stereo CR 0D 1 1 Power switch volume control Power switch Turn knob clockwise until a click is heard to switch the unit on Turn knob counter clockwise until a click is heard to turn the unit off Volume control Rotate knob to adjust radio and tape player volume 2 Bass Fader control Bass control Turn tab clockwise to increase bass and turn counter clockwise to decrease bass Fader control Pull knob out to adjust sound balance of front and rear speak ers 6 3 Treble Balance control Treble control Turn knob clockwise to increase treble turn counter clockwise to decrease treble Balance control While pulling knob out turn clockwise or counter clockwise to adjust the sound balance of right to left speakers for desired ste reo effect 4 Seek tuning buttons To seek stations automatically push knob Pushing left knob the frequency will count down pushing right knob the frequency will count up The seek operation will stop at the next listenable station Depress knob again if seek operation is to continue 5 Scan tuning button For automatic station selection push the SCAN button The unit will begin to search up band from the currently displayed fre quency It will stop for five seconds on each listenable station and than continue Push the SCAN button again to discontinue the automatic search when a desired broadcast has been located No
5. otice Printed in Germany 7 84 Frequency Response Capture Ratio Stereo Separation Image Response Ratio IF Response Ratio Tape Player Reproduction System Tape Speed Fast Forward Time Rewind time Frequency Response Wowand Flutter Stereo Separation Signal Noise Ratio 3 dB 30 to 15 000 Hz 1 5 dB 35 dB at 1 000 Hz 45 dB 80 dB 4 Track 2 Program Stereo 1 7 8 sec 4 76 cm sec Less than 100 sec C 60 Less than 100 sec C 60 40 Hz to 12 500 Hz 3dB 0 18 WRMS 45 dB 50 dB Dolby NR OFF 60 dB Dolby NR ON Noise reduction system manufactured under license from Dolby Laborato ries Dolby and the double D symbol are trade marks of Dolby Labora tories 000 5609 02 23
6. rous oxide or ferrochrome Maximum recording time should be 90 min C 90 Protect tapes against direct sunlight and prolonged exposure to temperature below 14 F 10 C and above 122 F 50 C Do not allow the cassette to remain inserted when the tuner and player is turned off All tape contact faces head and capstan should be cleaned periodi cally with soft lint free material and a head cleaner solvent to remove dust and accumulated oxide Do not use a screwdriver or other metallic object near the head faces Specifications Power Supply Power Output Maximum Power Output Tone Action Current Consumption Speaker Impedance Headphone Impedance AM Radio Frequency Range Intermediate Freqency Maximum Sensitivity Selectivity FM Stereo Radio Frequency Range Usable Sensitivity 12V DC 11 V 16 V Test Voltage 14 4 V Negative Ground 6 0 W per channel at 400 Hz 1 total harmonic distortion with 4 Q load 7 5 W per channel at 400 Hz Volume Control Maximum 10 dB at 100 Hz and 10 000 Hz Less than 0 9 A at 0 5 W 4 Q 4Q 8 Qavailable Greater than 8 Q 530 kHz 1605 kHz 456 kHz 14 dB y V at 0 5 W 35dB 87 6 MHz 107 9 MHz 19dB 1984 Volkswagen Aktiengesellschaft May not be reprinted or translated in whole or in part without the written consent of Volkswagenwerk All rights under the copyright laws expressly reserved by Volkswagenwerk Specifications subjects to alteration without n
7. te Scan tuning will count up band only 6 Station selector pushbuttons Five AM and five FM stations can be preset in an electro nic memory circuit Since you can select five stations on the AM band and five stations on the FM band you will be able to preset a total of 10 stations Selecting the desired stations can be done by either scan or seek tuning To preset a station depress one of the station selector push buttons until the station is heared again 7 Band selector switch Push button to change the range of reception AM or FM recep tion will be indicated by the indicator lights 8 Indicator lights CD Stereo mode only FM DX Sensitivety selector switch is depressed FM FMradio reception AM AM radio reception 1 5 Depressed station pushbutton 9 Frequency display 10 Eject button To stop the tape manually push firmly The radio turns on again The cassette will pop out for easy removal Note If the cassette is not manually ejected Auto Reverse will operate and playback continues on the tape The cassette should always be removed from the TAPE SLOT when not in use 11 Cassette slot Insert cassette with exposed side of tape facing to the right and push in firmly until mechanism captures the cassette Note Insertion of the cassette will automatically cut off the radio and tape playbac dio will come back on auto matically when the cassette is ejec
8. ted Radio cannot be operated while cassette is inserted 12 Sensitivety selector switch In DX Out LOC Normal position If there are too many station signals in the area distortion and overload can be eliminated when this switch is not depressed 6 13 Tape selector switch In For metal or CrO tape Out For regular tape 14 Dolby NR Dolby Noise Reduction switch In For playback of tape recorded by the Dolby Noise Reduction System in order to eliminate tape hiss Out For playback of tape not recorded by the Dolby Noise Reduction System Noise reduction system manufactured under license from Dolby Laboratories Dolby and the double D symbol are trade marks of Dolby Laboratories 15 RW Rewind button Press RW button slightly The tape will be rewound as long as button is held Press button fully for continous rewinding Push FF button to stop rewind Otherwise rewinding will continue to beginning of tape and play will start again 16 FF Fast forward button Press FF button slightly The tape will be advanced as long as button is held Press button fully for continous advance Push RW button to stop fast advance Otherwise advance will continue to end of tape and change to the other direction Play will start again Auto Reverse System 17 Program selector button The Auto Reverse System allows changing the direction while playing Press
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