Volvo S40 Operation Manual page 208

2000 Volvo S & V 40
"Dolby" and the double D symbol
Dolby noise reduction manufactured under license from Dolby Laboratories Licensing Corporation.
pg. 157 Audio systems, general information
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.
AM - reasons for distortion
AM reception is sensitive to electrical disturbances such as power lines, lighting, etc.
Radio antennas (S40)
NOTE: Always lower the antenna when using an automatic car wash or entering a garage.
The antenna should be cleaned at least every 15,000 miles (24,000 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.
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are the trademarks of Dolby Laboratories Licensing Corporation.