When the face plate is open the volume turns up no matter which way you turn the volume knob, the problem is the same for adjusting any of the settings using the same knob. When closed it works perfectly, also the remote only works when closed but not open. Any help would be great thanks.
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Could be a worn electronic ribbon between the unit and face. They wear from constantly moving and the wires inside break and short out. This happens a lot of movable face stereos. Older head units do not really have a reset aside from unplugging them and plugging them back in. You might be able to find a small hole behind the face containing a reset if there is one, just insert a small pin into the hole to press the reset if so.
THE FACEPLATE HAS LIKE SOME PINS WHERE IT MAKES CONTACT THE FACE PLATE WITH THE STEREO BODY WITH A COTTON AND SOME ALCOHOL CLEAN THE CONECTOR THE ONES THAT ARE IN THE STEREO BODY AND THE FACE PLATE BUT WHEN YOU MAKE IT MAKE SURE THE CAR OR FACE ITS TURN OFF
Press and hold the volume knob until it changes to a menu setup, by pressing the knob again once it should cycle to another option, keep pressing the knob until you get to DEMO. when you get to DEMO turn the knob as if you were turning the volume up or down and it should say DEMO OFF. there are many useful options in this menu, like sub control for low pass filtering, display options, turning the beep noise off/on, loud off/on, clock settings, and a few more
The capacitors in these plates tend to burn out quickly for being so hot and lack of air cooling circulation. You can test all connection pins on the deck and faceplate with an ohmmeter in ohm setting to see which pins is not sending 25-30 ohms or 5 volts of power
parts.com but you can fix it with jbweld. just remove the plastic with metal piece that is stuck to the volume button ON the faceplate and place it back in the center of the volume button knob. mix both pastes together and apply it aroun the plastic center of the knob. Ps don't add inside the hole where it attaches to the face plate. just follow the directions behind the jbweld pack.
The face plate is easy to take apart, just remove the face plate off the head unit and take the hex screws out and put a piece of tape over the bulb on the system board. Then put it back together again.
You've either got a short from faulty manufacturing or possibly from moisture entering your unit. Or the wiring may be faulty, if you know how take the unit out and examine the wiring; make sure the wires are all taped with electrical tape and that no bare wires exposed or touching. If everything looks ok then you might as well just exercise the warranty. They come with a 1 year warranty from Dual.
NO SUGGESTION TO YOU, BUT MINE JUST STARTED DOING THE SAME THING TODAY. IT STILL WORKS CORRECTLY WITH THE REMOTE, FOR NOW! I CALLED DUAL. THEY OFFER AN EXCHANGE FOR OUT OF WARRANTY UNITS, BUT THE EXCHANGE COSTS MORE THAN I PAID FOR THE ORIGINAL. I REALLY LIKE THE FEATURES OF THIS UNIT, IT'S UNFORTUNATE ABOUT THE NON-REPAIRABLE VOLUME CONTROL