| Radio navigation system “DX-R4” (Blaupunkt) |
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| When faced with complaints, it is absolutely necessary to know the functions and the operation of the radio navigation system. |
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| For perfect operation of the navigation system, the turn angle sensor in the unit has to be adjusted according to the installation position of the unit in the vehicle. Therefore, always note the part number when exchanging unit. Incorrect installation could lead to a malfunction in the navigation system. |
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| When the battery is reconnected, check operation of electrical equipment (radio, clock, convenience electronics and so on) according to the workshop manual or the Operating Manual. |
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| The use of magnetic-base aerials may lead to permanent magnetisation of the vehicle roof, resulting in a malfunction in the compass module. If confronted with complaints about inaccurate or incorrect directional indication of the compass module, ask the customer if a magnetic-base aerial has been used before carrying out any repair work. |
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| If tyres are changed the radio navigation system must be adapted again. Adapting radio navigation system after changing tyres → Chapter |
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