Dashboard illumination (PWM or voltage?)

Discussion in 'General Motoring' started by Alex \(YMG\), Jun 4, 2005.

  1. Alex \(YMG\)

    Alex \(YMG\) Guest

    Hi,

    Could anyone tell me if Volvo Trucks use PWM instead of voltage regulation
    to control the dimming of the dashboard illumination?

    My reason for asking is that I have a radio unit (Volvo VR200) fitted to my
    240. Supplying varying voltage to the 'illumination terminal' of the radio
    results in odd behaviour which leads me to believe the radio may use PWM
    dimming?

    Thanks

    Alex
     
    Alex \(YMG\), Jun 4, 2005
    #1
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