jbovitz@ub.d.umn.edu (Jeffrey Bovitz) (12/07/90)
No, the Subject line is not an exaggeration. I have a Sanyo C777 boombox. The problem I have with it is quite annyoying. Whenever the power is on, I get reception from a radio station. The noise is very small, but when I tune in a real station, and listen to it softly, the "ghost station" is as loud as the real one. The same thing happens with the AUX input and Tape. My antenna is a simple telescoping rod antenna. Has anyone ever heard of this problem before and how to correct it? I could take it into a service center, but I don't want to pay $24/hr to have them look at it and install a little diode or something. This is getting quite annoying. Any help would be great. Don't send to the address above. You can Email me at moonunit@meteor.wisc.edu, or post it, if you'd like. Thanx a bunch! Chris Bovitz
mcovingt@athena.cs.uga.edu ( Michael A. Covington) (12/07/90)
You say your boom box audio contains sound from a nearby radio station all the time, regardless of whether it's tuned to a station or playing a tape or whatever? I'll bet it's a very nearby AM station. First step would be to get some 0.005-uF capacitors (not critical value) and put one across each speaker and one across the volume control. I'm thinking that something -- probably the speaker wires -- is acting as an antenna and the AM radio signal is getting demodulated in the audio section. ... Put a capacitor across the power supply input, too, if you're using an external DC power supply.