pg. 1:39 Cassette deck

Cassette slot

The cassette is inserted with the roll of tape to the right-hand side. When the cassette is inserted, the radio is automatically disengaged. Push the cassette gently into place. The cassette will start to play automatically. The arrows show the tape direction. When one side of the tape has been played the unit will automatically play the other side (auto-reverse). If the unit is switched off while playing a cassette, the cassette will remain in position. The drive rolls will be disconnected in order to avoid tape tangle (pinch-off).

Reversing the tape

Depress both buttons to play the other side of the tape.
The arrows in the display indicate the direction of the tape.

Fast winding

Press either of these buttons (see arrows for direction) for fast winding. Depress fully to lock the button. Press opposite button to stop fast winding.

pg. 1:40 Cassette deck (cont.)

Chrome/metal tape selector

Depress the "CR"selector before playing a chrome or metal tape. "CR" will be displayed. This function should not be engaged for standard tapes.

DOLBY selector

This set has a DOLBY B noise reduction system. Depress the DOLBY selector when playing a DOLBY pre-recorded tape. DOLBY will be displayed. This function should not be engaged for non-DOLBY tapes.

Cassette eject

If the button is pressed the tape will stop and the cassette will be ejected. The radio will be automatically engaged.

pg. 1:41 General information


Sending signals

The FM waves do not follow the earth's surface nor do they bounce off the atmosphere. for this reason their range is limited.

The AM waves follow the earth's surface and reflect against the atmosphere, giving them a wide range.


Weak reception (fading)

Because of the limited range of the FM senders and the fact that these waves are very reflective, this problem usually occurs with FM reception. If the sender is blocked by buildings or mountains, static can result.


Static

The reason why FM but not AM is audible is covered parking areas, under bridges, etc., is that FM signals reflect against solid objects such as buildings. Because these waves are very reflective, static can result. This static is the result of the reflected signal and the direct signal reaching your antenna at slightly different times causing a cancellation of all signals. This problem occurs largely in built-up areas.

pg. 1:42 Cross modulation, FM - reasons for distortion, AM - reasons for distortion

Cross modulation

If you listen to a weak station in the vicinity of a stronger one, both stations may be received simultaneously.


FM - reasons for distortion

FM is affected by the electrical systems of nearby vehicles, especially those without suppression. The distortion increases if the station is weak or poorly set.
The FM reception is not as sensitive to electrical disturbances as AM.


AM - reasons for distortion

AM reception is sensitive to electrical disturbances such as power lines, lighting, etc.

pg. 1:43 Radio

FM stereo reception

Stereo reception places very high demands on the signal quality which means the type of distortions previously mentioned become even more obvious. The signal strength needs to be stronger for good stereo reception and this limits the effective range of the sender.

We hope that this information proves to be useful and provides you with a better understanding of the problems related to car radio reception.
Reception conditions are not always optimum and this is, of course, beyond our control. However, we have endeavored to make the Volvo Audio System of a quality that will enable you to enjoy the best possible reception no matter what the reception conditions may be.

Radio antenna


NOTE: Always lower the antenna (by switching off the radio) when using an automatic car wash or entering a garage. The antenna should be cleaned at least every 10,000 miles (16,000 km) or more frequently if needed. Use WD40 for cleaning.

- Spray the antenna with WD40 and wipe it clean and dry with a rag. Spray it again.
- Lower and raise the antenna. Wipe it clean and dry again.
- Lower and raise the antenna 4-6 times. Make sure it is dry and free from dirt or lubricating oil.

pg. 1:44 Technical specifications

Cleaning of magnetic head


In order to maintain the best possible sound quality and to ensure troublefree operation, Volvo recommends the use of Volvo Cleaning Cassette (available from your Volvo dealer) at regular intervals (10 to 15 hrs).
Cassettes/Compact Discs
Store cassettes/discs in their cases.
Do not touch the tape/disc surface with your fingers.
Cassettes/discs should not be exposed to direct sunlight or extreme temperatures.
Keep cassettes/discs away from oil, grease and other contaminants.
for optimal tape deck performance Volvo does not recommend the use of C-120 tapes.
Take up tape slack using a pen or a pencil before inserting a cassette.
Never play a damaged disc. This may cause CD changer break-down.
CR-814
Tape player
Fully logical, 4-track 2 channel stereo
DOLBY B and DNR
Channel separation 40 dB
Frequency range
Normal tapes 120 uS 40 dB
Chrome/metal tapes 70 uS 40 dB
Signal strength
- DOLBY B 65dB
- DOLBY OFF 55dB
Wow and flutter 0.13 %
Fuse 5 A
Spare fuses are available at your Volvo dealer.
Radio
Output 2 x 6W (10% dist.)
System
PLL system with tuned HF front end and
automatic wide band gain control
Tuning range CR-814 FM 87.9 - 107.9 MHz
AM 530 -1710 kHz
Sensitivity FM 2.0mV
AM 7.0mV
Stereo separation 35dB
CD changer
See separate information
CR-718
Tape player
4-track, 2-channel stereo
DOLBY and CrO2 selector
Tape speed: 4.76 cm/sec.
Pinch-off
Output: 2 x 6 W(10% dist.)
Output impedance: 4 Ohms
System voltage: 12 Volts, negative ground
Fuse: 5 A
System: Superheterodyne system with HF-step.
Electronic suppression device
Frequency range:
CR - 718 FM 87.9 - 107.9 MHz
AM 530 - 1700 kHz
Sensitivity: FM l.5µV
AM 6.5µV


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