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About Christoffr

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  1. I have tested 3 Ford 6000CD radios at random. They are each taking 0.5A when the radio is in the OFF condition. These radios should only take a few milliamps when switched off. I am a Chartered Electronic Radio Engineer and have discovered that the internal radio micro should be sending a voltage condition to the audio/power control chip to switch the set into Standby but instead, a faulty component between the micro and power control chip is setting the radio to Mute mode. When the radio is turned on it operates normally so users would never know the problem and may think their failing battery is simply old. Replacing the car battery obviously disguises the problem. This problem was discovered on 2004 Focus but these radios are fitted across the range. How many of these radios are doing this. It could be tens of 1000s. I would be interested to get responses. Chris
  2. Thanks for your suggestion but I have operated the radio on a bench power supply and the same problem was displayed.
  3. Has anyone experienced a problem of a 6000cd radio draining the battery when the radio is turned off? My wife's 2004 Focus is drawing half an amp even when the radio is off. I believe that the normal current drain in the off condition should be a few milliamps. In all other respects the radio is working. I discovered that the audio chip incorporates a power switch. the output of this switch feeds the main board chips. I have measured that the output of the power switch/audio IC is feeding high current to the main board when they should clearly be closing down. I bought another used radio and it does the same.