25
TROUBLESHOOTING TIPS
Problem
Solution
Power LED not ON
With a Volt Ohm Meter (VOM) check:
•
+12 Volt power terminal (should read +12 to +16VDC
•
Remote turn-on terminal (should read +12 to +16VDC)
•
Ground Terminal
Power LED lights BLUE, no output
•
Check RCA connections
•
Test speaker outputs with known good speaker
•
Substitute known good Source Unit
•
Check for signal on the RCA cable with VOM in AC position
•
Make sure the SLAVE/MASTER switch is set to the MASTER
position
Red Status Protection LED is ON, no
output and
1. Amp is VERY HOT
2. Amp shuts down ONLY when the
vehicle is running
3. Amp has no output
•
Thermal protection is engaged. Check for proper impedance
at speaker terminals. Also check for adequate air flow around
the amplifier.
•
Voltage protection engaged. Voltage to the amp is not within
the 10-16 VDC operating range. Have the battery/charging
system inspected.
•
Possible short circuit. Check speaker wiring. Must complete-
ly turn off amplifier and restart to resume play.
Alternator noise (varies with RPM)
•
Check for damaged RCA cable.
•
Check routing of RCA cable
•
Check Source Unit for good ground
•
Check amp gain setting, turn down if set too high
Poor Bass Response
•
Check speaker polarity, reverse the connection of one speaker
only.
NOTE: If the Status L.E.D. is activated and glows RED with no speakers connected to the amplifier,
and all the power connections are correct, this would indicate an internal problem with the amplifier.
Contact PowerBass USA or your local dealer.