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Hifonics TDA200R - TDA250R Manual

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TROUBLESHOOTING
If you are having problems after installation follow the Troubleshooting procedures below.
Procedure 1:
Check Amplier for proper connections.
Verify that POWER LED lights up green. If this is the case, skip to Step 3, if not continue.
1. Check in-line fuse on battery positive cable. Replace if necessary.
2. Check fuse(s) on amplier. Replace if necessary.
3. Verify that Ground connection is connected to clean metal on the vehicle’s chassis. Repair/replace if necessary.
4. Verify there is 9 to 16 Volts present at the positive battery and remote turn-on cable. Verify quality connections for both cables at
amplier, stereo, and battery/fuse holder. Repair/replace if necessary.
5. Check that the AUTO TURN ON switch is in the ON position and the HI LEVEL INPUT is connected correctly, if you don’t use
the RCA inputs AUDIO INPUT.
Procedure 2:
PROTECT LED lights up red.
1. If the PROTECT LED lights up, this is a sign of driving the device at very high power levels without adequate airow around the
device. Shut off the system and allow device to cool down. 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 device.
Procedure 3:
Check Amplier for audio output.
1. Verify good RCA input connections at stereo and amplier. Check entire length of cables for kinks, splices, etc.
Test RCA inputs for AC volts with stereo on. Repair/replace if necessary.
Procedure 4:
Check Amplier for a popping noise while turning on.
1. Disconnect input signal to amplier and turn amplier on and off.
2. If the noise is eliminated, connect the remote lead of amplier to source unit with a delay turn-on module.
Procedure 5:
Check Amplier if you experience excess Engine Noise.
1. Route all signal carrying wires (RCA, speaker cables) away from power and ground wires.
OR
2. Bypass any and all electrical components between the head unit and the amplier(s). Connect stereo
directly to input of amplier. 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.
… 12 …


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