Five LM-2.100, User Manual

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T R O U B L E S H O O T I N G
If you are having any trouble after installation, please, follow the Troubleshooting steps/points as
below.
STEP 1 :
Check the amplifier for proper connections.
Ensure that PWR/ PRT LED lights up green. If this is the case, skip to point 3, if not continue.
1. Check in-line fuse on battery positive cable. Replace if necessary.
2. Check fuse(s) on amplifier. Replace if necessary.
3. Verify that Ground connection is connected to clean metal on the car's chassis. Repair/replace if
necessary.
4. Ensure there is 12 to 14 Volts present at the positive terminal and remote turn-on cable. Verify quality
connections for both cables at amplifier, car stereo, and battery/fuse holder. Repair/replace if
necessary.
STEP 2 :
PWR/PRT LED lights up red.
1. If the PROTECT lights up red, this is a sign of a possible short in the speaker connections. Check for
proper speaker connections and use an ohm meter to check for possible shorts in the speaker wiring.
Too low speaker impedance may also cause PROTECTION to light. This can also be a sign of driving
the amplifier at very high power GAINs without adequate airflow around the amplifier. Shutoff the
system and allow amplifier to cool down. Check that the car charging system is maintaining proper
voltage. If the previous items do not solve the trouble, a fault may be in the amplifier. In this case you
should contact your seller.
STEP 3 :
Check the amplifier for audio output.
1. Check good RCA input connections at car stereo and amplifier. Check entire length of cables for
kinks, splices, etc.
Test RCA inputs for AC volts with car stereo on. Repair/replace if necessary.
STEP 4 :
Check the amplifier for a popping noise while turning on.
1. Disconnect input signal to amplifier and turn amplifier on and off.
2. If the noise is eliminated, connect the remote lead of amplifier to source unit with a delay turn-on
module.
STEP 5 :
Check the amplifier if you experience excess Engine Noise.
1. Route all signal carrying wires (RCA, Speaker cables) away from power and ground wires.
2. Bypass any and all electrical components between the car head unit and the amplifier(s). Connect
the car stereo directly to input of amplifier. If noise stopped the unit being bypassed is the cause of
the noise.
3. Remove existing ground wires for all electrical components. Reroute wires to different locations.
Ensure that grounding location is clean, shiny metal free of paint, rust etc.
4. Add secondary ground cable from negative battery terminal to the chassis metal or engine block
of vehicle.
5. Request assistance of a mechanic to test alternator and battery load. Check good working order
of vehicle electrical system including distributor, spark plugs, voltage regulator, spark plug wires etc.
Please contact with your seller if the amplifier still does not work even after the above
troubleshooting list had been checked.
For warranty adjustment / repairs, the original invoice has to be presented!
Opening or disassembling the amplifier void warranty!
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