beetroot4000
Member
Hi all,
I have a disco 2 with the highline radio with CD changer and Harman Kardon amplifier, I've had the vehicle for about 6 months and whilst the radio and all controls, steering wheel and CD changer all work ok, no sound comes out.
I've read through a lot of forums and viewed all the wiring diagrams and have yet to track down the issue, the testing I've done thus far is:
Power to head unit - Good constant 12v
Power to amp from head unit - Good constant 12v
Remote power to amp from head unit- Good 12v when ignition on
3rd row passenger headphone jack- Good
Using a pair of headphone I was able to jump a wire to two of the amp speaker inputs and the music was coming through.
Short of declaring the amplifier is broken, the only thing I have tested and not to sure on is the SLABs input into the amplifier, the wiring diagram and description shows/says there is an input to the amplifier which turns the volume of the speakers up in proportion to road speed.
With the car not running the voltage at the amplifier is showing less than 1v, I don't know if this is to be expected or not.
If anyone has anything else I can try testing, or some information on the SLABS input, would be greatly appreciated.
Cheers
I have a disco 2 with the highline radio with CD changer and Harman Kardon amplifier, I've had the vehicle for about 6 months and whilst the radio and all controls, steering wheel and CD changer all work ok, no sound comes out.
I've read through a lot of forums and viewed all the wiring diagrams and have yet to track down the issue, the testing I've done thus far is:
Power to head unit - Good constant 12v
Power to amp from head unit - Good constant 12v
Remote power to amp from head unit- Good 12v when ignition on
3rd row passenger headphone jack- Good
Using a pair of headphone I was able to jump a wire to two of the amp speaker inputs and the music was coming through.
Short of declaring the amplifier is broken, the only thing I have tested and not to sure on is the SLABs input into the amplifier, the wiring diagram and description shows/says there is an input to the amplifier which turns the volume of the speakers up in proportion to road speed.
With the car not running the voltage at the amplifier is showing less than 1v, I don't know if this is to be expected or not.
If anyone has anything else I can try testing, or some information on the SLABS input, would be greatly appreciated.
Cheers