Question about Kenwood Car Audio & Video

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I have just fitted a Kenwood head unit KDC-4551U in a Renault Megane but I can't dim the panel leds. Do you know which wire in the back of the HU is for dimming? Kind regards, Rob

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  • rob1860 Mar 30, 2011

    Thanks for that, but I have already followed that procedure - it only dims the fluorescent display not the LEDs and they remain too bright for night-time driving. Do you think there may be a fault with the HU? Should the LEDs dim as well?



    Kind regards, Rob

  • rob1860 Mar 30, 2011

    Thanks mate, that was the conclusion I was reaching and I do appreciate your having confirmed it for me. Many thanks for your help.

    Kind regards,

    Rob

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If you are talking about dimming the LED panel on the Kenwood unit itself, thee is no wire in the back for the control of the dimmer. This is controlled by pressing the Volume knob until you get into FUNCTION Mode, and then turning the knob until you see SETTINGS on the display, then pressing the knob to enter that mode. You would then turn the knob again until you see the word DISPLAY, then DIMMER SET. Turning it ON will dim the display and turning it OFF will cancel the dimming.

In case you do not have access to the instruction manual you can download it from the following website:

http://www.kenwood.eu/products/car/receivers/usb_receivers/KDC-4551UB/

Just below the word DOWNLOAD will be the link for the manual. Right click it and choose Save As.

The file is in the pdf format. If you don't already have the Adobe Free Reader you can download it from this website:

http://get.adobe.com/reader/

Just click on the orange box that has the word DOWNLOAD in it. If you save the file to your Desktop all you have to do is double-click the icon that it creates and the reader will install itself. You can then double-click the file for your manual and it will automatically load the reader and display itself in the reader.

Posted on Mar 30, 2011

  • bvanjoff Mar 30, 2011

    Just double checked on that and the dimmer only works on the FL display and not the LED's. Not really sure unfortunately what you can do about their brightness. You would have to find a complete schematic, and then figure out where on the display circuit you would have to cut in and wire in your own dimmer circuit. Needless to say any kind of customization along those lines would immediately void your warranty.

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