Quantum QM-TWO El Manual Del Propietario página 12

TROUBLESHOOTING
If you are having problems after installation follow the Troubleshooting procedures below.
Procedure 1:
Check amplifier for proper connections.
1. Check in-line fuse on battery positive cable. Replace if necessary.
2. Verify that Ground connection is connected to clean metal on the vehicle's chassis. Repair/replace if
necessary.
3. Verify there is 9 to 16 Volts present at the positive battery and remote turn-on cable.
4. Verify quality connections for both cables at amplifier, head unit, and battery/fuse holder. Repair/replace if
necessary.
Procedure 2:
Check amplifier for overload and short circuits.
1. Check for proper speaker connections and use an ohm meter to check for possible shorts in the
speaker wiring.
2. T oo low speaker impedance may also overheat and overload. Shut off the system and allow amplifier
to cool down.
3 Check that the vehicle charging system is maintaining proper voltage. If the previous items do not
solve the problem, a fault may be in the amplifier. In this case you should contact your dealer.
Procedure 3:
Check amplifier for audio output.
1. V erify good RCA input connections at head unit and amplifier. Check entire length of cables for kinks,
splices, etc. test RCA inputs for AC volts with head unit on. Repair/replace if necessary.
Procedure 4:
Check amplifier for a popping noise while turning on.
1. D isconnect input signal to amplifier and turn amplifier on and off.
2. I f the noise is eliminated, connect the remote lead of amplifier to source unit with a delay turn-on module.
Procedure 5:
Check amplifier if you experience excess engine noise.
1. Route all signal carrying wires (RCA, speaker cables) away from power and ground wires.
OR
2. B ypass any and all electrical components between the head unit and the amplifier(s). Connect head unit
directly to input of amplifier. If noise goes away the unit being bypassed is the cause of the noise.
OR
3. Remove existing ground wires for all electrical components. Reground wires to different locations.
Verify that grounding location is clean, shiny metal free of paint, rust etc.
OR
4. Add secondary ground cable from negative battery terminal to the chassis metal or engine block of vehicle.
OR
5. Have alternator and battery load tested by your mechanic. Verify good working order of vehicle electrical
system including distributor, spark plugs, spark plug wires, voltage regulator etc.
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