Magellan RoadMate 700 GPS

Try going into settings and see if there is anything under sound settings. Otherwise it may have been caused due to a malfunction.

switches needs servicing,wd 40 can solve that for you,if problem not solved replace switch board and sensor board.

Uninstall the browser (if its not IE) and then reinstall.

have you tried to unplug the set briefly and then plug it back in?

Its a Beko-----check for feature in Menu to turn speakers off and if speakers are NOT switched off you have a audio circuit problem.

I would also put my ear right to the speaker and see if hear ANYTHING.

This really sounds like a wiring problem. I would start from scratch, seeing as how it will be difficult to find the issue you describe. Also, if you can, solder your connections to the radio. If you used crimp butts they may not have been tight enough and vibrated loose with use of the boat. Hope this helps

As odd as this may sound, it sounds like a problem in your keyboard. Make sure the volume button(s) or mute button is not partially depressed and stuck, and hasn't had anything spilled in/on it. If it's not that, you've probably got bigger issues that are going to take some qualified repair work, like parts swaps.

Check in the TV's AUDIO menu for anything related to turning on/off speakers. Also, unplug RCA's that you may have hooked up to the Audio OUT ports. Some video inputs may not have a sound input associated. The only one I can think of would be VGA, but even that would be rare.

Did you ever get this problem fixed? Ours just started doing the same thing. It worked fine the night before, but today it's doing what yours is doing. The remote stopped working for the TV. The remote still works for the cable box, but volume and anything related to TV function not. The screen flashes when we try to adjust volume or anything else, but resets to previous volume. TV not responding to any commands either on the front panel or remote.
Any ideas? Thanks, Patti

HIT MENU, GO TO AUDIO (SPEAKER PIC) SCROLL DOWN TO "2ND PAGE" AND SELECT SPEAKERS ON. AND YOU MAY NEED TO ALSO SELECT SBS ON