Boss Audio Systems Ripper RIP-496 User Manual page 13

Troubleshooting
Before removing your amplifier, refer to the list below and follow the
suggested procedures. Always test the speakers and their wires first.
No Output Confirm that all terminal strip connections are secure and tight.
Check both in-line and built-in fuses. Both the "+I 2v" and the "~EM0TE"terminals must
have +12v referenced to chassis ground.
Confirm that the audio signal source (car radio, equalizer, etc.) is connected and is
supplying output signal. To check if the amplifier is supplying signal, unplug the RCA
cables from the signal source (but leave them plugged into the amp). Briefly tap the
center pin of each of the disconnected RCA plugs with your finger. This should produce
a noise (feedback)in your speakers.
Only one Confirm that all speaker strip connections are secure and tight.
channel
works
Check the "BALANC~ control on the head unit (or other source) to verify that
it
is set to
its midpoint.
If you are using the Low Level RCA input, reverse the input plugs at the amplifier (switch
the R with the L). If the channel which is silent switches to the other side, the problem is
either in the head unit/ other source or the connecting cables.
Weak output
Readjust the Input Level Control to better suit the input signal.
Noise in the
If the noise is a"whine" whose pitch follows the engine speed, confirm that the amplifier
Audio and any other signal sources (head unit, etc.) are properly grounded.
If the noise is a "clicking" or "popping" noise whose rate follows the engine speed, this
usually means that the vehicle is equipped with resistor spark plugs and wires, or that
the ignition is in need of service.
Check the routing of the speaker and input wires to make sure they are not adjacent to
wires which interconnect lights and other accessories.
If the above steps fail to improve or clear noise interference, the system should be checked
by a professional mobile audio installer.