– 20 –
– 21 –
6. TrouBLe sHooTINg
If the unit does not turn on, and/or the power indicator LED is nOt illuminated,
do this:
1. Check and make sure that B+ and GND are not reversed
2. Check that all power wires are properly connected and voltage is in the ballpark
(11-16volts)
3. Check that the fuse is intact.
If you experience high audible distortion or low output volume:
1. Check that the input and the output levels are set correctly. Input should match the source and
the output should match the sensitivity of the amplifier.
2. Check the crossover settings: make sure they are correct; for high quality systems, set the
crossover half an octave above the desired point and for low quality systems, set it one octave
or more above.
If you experience whining or engine noises:
1. Verify that the GND connection is secure; the conductor (wire) is not too thin and unnecessarily
long.
2. Check that the B+ wire is not too thin and unnecessarily long.
3. Change the power source; try taking power from a different point.
ZBP-1PRO Manual D+E.indd 20
21.08.2007 9:40:34 Uhr
