User manual ALPINE MRV-1507

[. . . ] Return it to your authorized Alpine dealer or the nearest Alpine Service Center for repairing. The wiring and installation of this unit requires special technical skill and experience. To ensure safety, always contact the dealer where you purchased this product to have the work done. Use of other than designated parts may damage this unit internally or may not securely install the unit in place. [. . . ] Make sure there are no objects behind the surface that may become damaged during drilling. Position the MRV-1507/MRV-F307/MRV-T707/MRVT407 over the screw holes, and secure with four selftapping screws. NOTE: To securely connect the ground lead, use an already installed screw on the metal part of the vehicle (marked (5)). Be sure this is a good ground by checking continuity to the battery (­) terminal. Before making connections, be sure to turn the power off to all audio components. Connect the yellow battery lead from the amp directly to the positive (+) terminal of the vehicle's battery. Locate the unit and route the leads at least 10 cm away from the car harness. ⷠKeep the battery power leads as far away from other leads as possible. ⷠConnect the ground lead securely to a bare metal spot (remove the coating if necessary) of the car chassis. ⷠIf you add an optional noise suppressor, connect it as far away from the unit as possible. Your Alpine dealer carries various Alpine noise suppressors, contact them for further information. The head unit's power antenna lead is logic level output (+) 5V, negative trigger (grounding type), or cannot sustain (+) 12V when connected to other equipment in addition to the vehicle's power antenna. If any of the above conditions exist, the remote turn-on lead of your MRV-1507/MRV-F307/MRV-T707/MRVT407 must be connected to a switched power source (ignition) in the vehicle. Using this connection method, the MRV-1507/MRV-F307/MRVT707/MRV-T407 will turn on and stay on as long as the ignition switch is on. If this is objectionable, a SPST (Single Pole, Single Throw) switch, in addition to the 3A fuse mentioned above, may be installed in-line on the MRV-1507/MRVF307/MRV-T707/MRV-T407 turn-on lead. This switch will then be used to turn on (and off) the MRV-1507/ MRV-F307/MRV-T707/MRV-T407. Therefore, the switch should be mounted so that is accessible by the driver. 1 Blue/White 2 Power Antenna 3 Remote Turn-On Lead 4 To other Alpine components' Remote Turn-On Leads 5 SPST Switch (optional) 6 Fuse (3A) 7 As close as possible to the vehicle's ignition tap 8 Ignition Source A) Set to the "LP" position when the amplifier is used to drive a subwoofer. the frequencies above the crossover point will be attenuated at 12 dB/octave. B) Set to the "HP" position when the amplifier is used to drive a tweeter/midrange system. the frequencies below the crossover point will be attenuated at 12 dB/octave. C) Set to the "OFF" position when the amplifier will be used for driving full-range speakers. [. . . ] This eliminates the need for "Y"-adaptors when using a head unit with a single pair of pre-amp output. B) Set this switch to "3/4" to have the inputs of CH-3/4 accept independent input sig3/4 1+3/2+4 nals. An example of this application would be the use of a head unit with dual preamp outputs. C) Setting this switch to "1 + 3/ 2 + 4" will sum the CH-1 and CH-3 input and send it 3/4 1+3/2+4 to CH-3 while the CH-2 and CH-4 inputs are summed and sent to CH-4. [. . . ]