About Jason Boyer Expertise I don`t hold any official certifications, but have worked extensively with late 1970`s and
early 1980`s Volvo 240 series, and personally own a 1980 240. Its gone from a hobby to
obsession during the past few years, and I enjoy talking about almost every aspect of the
early 240 series. I`ve developed relationships with many Volvo mechanics, and tour
salvage yards regularly for parts and good information!
Experience I've performed many exaustive mechanical operations on my car personally, including a
brake system overhaul, a complete drivetrain changeout, various misc mechanical and
electrical tasks, and almost complete replacement of everything cosmetic.
Expert: Jason Boyer Date: 3/9/2005 Subject: radio settings lost when car turned off
Question The radio works fine and allows setting of stations. However, sometimes upon starting the car, the stations selected are lost. All channels default to same station. resetting them results in stations being saved until another time when lost. It appears as if power to radio is lost when car turned off.
Is there a particular power supply or circuit that may be suspect?
Any suggestions would be appreciated.
john
Answer There is a 12 volt constant line running to the back of the radio to keep the memory when the car is turned off. My guess is that you've developed a problem with that line, either a loose connection, or a ground problem between the radio and the fuse box. I would also check your battery. If when you start the car, the voltage drops well below 12, then the radio will lose its memory even if that line is good. Older batteries or starter motors that are going bad will produce greater voltage fluxuations. Good luck!
