JL Audio XD200/2 owner manual Appendix D Troubleshooting, My amplifier doesn’t turn on

Page 14

APPENDIX D: TROUBLESHOOTING

“How do I properly set the input sensitivity on my amplifier?”

Please refer to Appendix A (page 12) to set the input sensitivity for maximum, low-distortion output.

“My amplifier doesn’t turn on.”

Check the fuse, not just visually, but with a continuity meter. It is possible for a fuse to have poor internal connections that cannot be found by visual inspection. It is best to take the fuse out of the holder for testing. If no problem is found with the fuse, inspect the fuse-holder.

Check the integrity of the connections made to each of the “+12VDC”, “Ground”, and “Remote” terminals. Ensure that no wire insulation is pinched by the terminal set screw and that each connection is tight.

Check to make sure there is +12V at the “Remote” connection of the amplifier. In some cases, the turn-on lead from the source unit is insufficient to turn on multiple devices and the use of a relay is required. To test for this problem, jump the “+12VDC” wire to the “Remote” terminal to see if the amplifier turns on.

“I get a repetitive ticking or popping sound coming out of the speaker(s).”

Check the speaker wires for a possible short, either between the positive and negative leads or between either speaker lead and the vehicle’s chassis ground. If a short is present, you will experience distorted and/or attenuated output. The “Status LED” will turn Amber (yellow) in this situation. It may be helpful to disconnect the speaker wires from the amplifier and use a different set of wires connected to a test speaker.

Check the nominal load impedance to verify that each channel of the amplifier is driving a load equal to or greater than 2 ohms in stereo mode (4 ohms bridged).

“My amplifier’s output fluctuates when I tap on it or hit a bump.”

Check the connections to the amplifier. Make sure that the insulation for all wires has been stripped back far enough to allow a good contact area inside the terminal block.

Check the input connectors to ensure that they all are making good contact with the input jacks on the amplifier.

14 JL Audio - XD200/2 Owner’s Manual

Image 14
Contents 200W 2-Channel Amplifier Serial Number Installation ApplicationsProtect Your Hearing Cooling Efficiency Considerations Planning Your InstallationSafety Considerations A fan. In normal applications, fan-cooling is not necessaryProduct Description Securely mount the amplifierPower Connections Fuse RequirementsInput Voltage Range TURN-ON LeadInput Section Input Sensitivity Control To achieve the desired system balanceFilter Controls Most speakers are not designed to reproduceRemote Level Control Optional PreoutsSpeaker Outputs Or a summed mono center channelJL Audio Technical Support Problem and turn the volume upServicing Your JL Audio Amplifier Necessary Equipment Nine-Step ProcedureAppendix a Turn the Input Sens. control all the way downAppendix B  Appendix CAppendix D Troubleshooting My amplifier doesn’t turn onMy amplifier turns on, but there is no output INSTALLATION NOTES Page Page Page JL Audio, Inc Limited Warranty Amplifiers USAIf you need service on your JL Audio product International Warranties