Harman Kardon MAESTROKITCHEN 100 Installation Manual page 48

8 TROUBLE SHOOTING
UK Trouble shooting
Problem
Power icon does not glow
amber when power supply is
connected to the head unit
No sound from one (or both)
speaker(s)
No sound from the
subwoofer
Weak bass and poor stereo
imaging
Weak bass in a system with
two subwoofers
No sound from iPod device or
USB stick
No sound from auxiliary audio
source
Auxiliary audio source plays
through only one door
speaker
Cause
• AC wall outlet is not live
• Power supply is not properly
connected to head unit
Speaker(s) connected
improperly
Subwoofer connected
improperly
Speaker(s) wired incorrectly
Phase cancellation between
subwoofers
• Improper USB cable
connection
• Apple cable is bad
Improper cable connection
Cable used to connect auxiliary
audio component is a mono
cable
48
Installation Manual
Solution
• Plug the power supply into a live AC wall outlet
• Confirm that the power supply is properly
connected to the head unit
Unplug the head unit power supply from the AC
wall outlet and make sure the speaker(s) is properly
connected at the head unit and at the speaker(s)
Unplug the head unit power supply from the AC wall
outlet and make sure that the connections between
the head unit and subwoofer are correct
Unplug the head unit power supply from the AC
wall outlet and reverse the red and plain (+) and (-)
connections of only one speaker at the head unit
speaker connector. Reconnect the head unit power
supply
Unplug the head unit power supply from the AC
wall outlet and reverse the red and plain (+) and
(-) connections of only one subwoofer at its head
unit subwoofer connector. Reconnect the head unit
power supply
• Confirm that the USB cables are properly
connected to the head unit
• Confirm that the input panel has been properly
assembled
• Replace the Apple cable
• Confirm that the Aux cable is
properly connected to the head unit
• Confirm that the input panel has been properly
assembled
Use a stereo 3.5mm cable to connect an auxiliary
audio source to the input panel