FMR User Manual 1.7
Contents
1. Fader Control Virtual O0 AM FM switching Original AM FM switching Power cycling Aux Input selection Tune to left side of dial Aux Input selection Signal sensing VOX Aux input selection Power cycling Aux input selection External switch American channels Worldwide channels Japanese channels O LED Not Installed LED AM Green FM Yellow BT Orange AUX Red ERR Red O0 LED AM Red FM Orange BT Yellow AUX Green ERR Green Power 12V negative ground fused 12 5A max Power 12V positive ground fused 8A max Power 6V negative ground fused 12 5A max Power 6V positive ground fused 8A max Original Power lead Red wire in cable harness Original Dial lamp lead Orange Dial lamp wire in cable harness Dial lamp comes on with radio 6 Specifications FM Receiver Frequency Range Channel Spacing Sensitivity De emphasis SNR Image Rejection Audio Separation Audio Response AM Receiver Frequency Range Channel Spacing Sensitivity SNR Image Rejection Audio Output Speaker Impedance Output Power Auxiliary Input Input Level Input Impedance Withstand Voltage Auxiliary Outputs Output Level Frequency Response 87 5 108MHz Worldwide except Japan 76 0 90 OMHz Japan 200kHz America s 100kHz all other regions 5 0dBuV 26dB SNR 75uS Ameri2. Virtual Balance Quickly twist the tone control back and forth twice to the left The tone control temporarily becomes the balance control A tone will alternate between the left and right channels to verify you have entered the virtual balance control You may adjust the alance for as long as you wish When finished the FMR 1 waits a few seconds and then signifies that the setting was accepted by playing a tone This setting is retained until it the next time it 1s changed Virtual Fader Quickly twist the tone control back and forth twice to the right The tone control temporarily becomes the fader control A tone will alternate between the front and rear channels to verify you have entered the virtual fader control You may adjust the fader for as long as you wish When finished the FMR 1 waits a few seconds and then signifies that the setting was accepted by playing a tone This setting is retained until the next time it is changed Loudness Contouring This is a method of adjusting or contouring the audio spectrum to match that of the human ear This should normally be enabled as it will make the audio sound more natural at all volume levels To enable Loudness Contouring quickly twist the tone control back and forth three times to the left To disable Loudness Contouring and provide a flat frequency response quickly twist the tone control back and forth three times to the right The FMR 1 signifies that the setting was accepted by pl
3. indicating which speaker followed by a short pause then another set of flashes indicating the specific problem If multiple faults are found each of these patterns will be followed by a long pause and the next fault will be displayed First Group of Flashes 1 Left Front Speaker 2 Right Front Speaker 3 Left Rear Speaker 4 Right Rear Speaker Second Group of Flashes 1 Short to Ground 2 Short to Battery 3 Line shorted together 4 Internal Error Overheating If the FMR 1 ever overheats in operation the front panel LED if installed will blink slowly No damage will occur to the radio and it may start to lower the output power to bring the temperature back down This should never occur in normal operation Options If your radio was equipped with the BT 1 Bluetooth adapter the FMR 1 will automatically mute the radio and switch to the Bluetooth input when audio is streaming or a call is received If your radio was equipped with a USB 1 adapter the FMR 1 will automatically mute the radio and switch to the USB input whenever a USB FLASH drive is inserted Please refer to the appropriate User Manual for complete information Configuration Tone Control Original Tone Control External control Tone Control Using tone switch and volume control Balance Control Original Balance Control External control Balance Control Virtual Fader Control Original Fader Control External control O
4. Aurora Design FMR 1 User Installation and Operation Manual Congratulations on your new FMR 1 converted radio With the FMR 1 installed in your radio you will experience unrivaled performance features and reliability all while retaining the radios original appearance Installation Before starting installation you should remove one of the battery cables Your radio came with a short 12 pin wiring harness This harness will be used to connect the radio to your vehicle The pinout is as follows Color Signal Color Signal Red Ignition Black Ground Blue Switched Bat Out Orange Dial Lamp White Left Front White Black Left Front Grey Right Front Grey Black Right Front Green Left Rear Green Black Left Rear Violet Right Rear Violet Black Right Rear The Red wire should be connected to an Ignition switched circuit that is fused as shown in the Configuration section of this manual It should not be connected to a continuous battery circuit The Black wire can be attached to a convenient point on the dashboard The Orange wire should connect to the original dash lamp circuit The Blue wire is a switched power output that can be used for power antennas external amplifiers etc Do not connect the Blue wire to battery The remaining wires are for the speakers To achieve such high power levels the FMR 1 uses a bridged amplifier design where neither speaker lead is ground Both wires actively drive the speaker so speakers with on
5. aying a tone Tone Switch If your radio has a tone switch rather than a tone control it may have been configured to select between volume and tone functions on the main volume control In one position of the tone switch the volume control will function as normal In the other position of the tone switch it will function as the tone control with full compatibility with the virtual controls as described above When you switch from volume to tone the FMR 1 will hold the volume steady until you return to the volume position of the tone switch Since it is possible the volume control could now be set to a very high volume depending on where it was left after making adjustments to the tone and virtual controls the FMR 1 will beep once to alert you of this condition and the volume control will need to be lowered to at least the previous level before it will start operating normally again Also if the tone switch is set to the tone position when the radio is first turned on the volume will be at a safe preset level so that it will not damage the speakers Tuning Your radio will tune as before including pushbuttons and automatic Signal Seeking operation Pushbuttons can be set for an AM or FM station radio must be in correct band mode for button Signal Seeking radios like the Wonderbar and Town amp Country will operate as before including sensitivity Town Country controls Line Out Optional Line Out jacks may have been added to your radio i
6. ca s 50uS all other regions 60dB typ 60dB typ 40dB typ 30Hz 15kHz 3dB 530 1710 America s 531 1611 all other regions 10kHz America s 9kHz all other regions 30dBuV 26dB SNR 56dB typ 55dB typ 4 32Q 4 X 45W into 4Q 14 4V max EIAJ 4 X 22W into 4Q 144V 1 THD 10dBV nominal level OdBV max without clipping 7 5KQ 24V max OdBV nominal level into 5KQ 10Hz 20kHz 1dB into 5KQ Subject to change without notice Characterized by component manufacturer 7 Dealer Name Date Job Aurora Design LLC 2013 15 Rev 1 7 www tech retro com 8
7. e side already grounded as used in some original applications must not be used The FMR 1 performs best with speakers of 4 ohm impedance a SPL rating of at least 90 and a power rating of at least 30W 50W for full output The FMR 1 can drive 1 2 or 4 speakers as follows For a 1 speaker installation the speaker can be connected to any one of the four outputs The FMR 1 will detect that only one speaker is attached and enable mono mode while disabling the balance and fader controls For a 2 speaker installation the speakers can be attached in one of three ways as follows 1 If the two speakers are attached to either the front left right pair or the rear left right pair the FMR 1 will enable stereo mode and the balance control 2 If one speaker is attached to the left or right front output and the other speakers is attached to the same channel left or right rear output the FMR 1 will enable mono mode and the fader control 3 If one speaker is attached to the left or right front output and the other speakers is attached to the opposite channel right or left 2 rear output the FMR 1 will enable stereo mode and the fader control For a 4 speaker installation all the speaker outputs will be used and the FMR 1 will enable stereo balance and fader controls Note when attaching a speaker output to an external amplifier a 150 ohm watt resistor needs to be connected across the output to tell the FMR 1 an external amplifier is at
8. f requested The five outputs front rear pair and subwoofer can be attached to an outboard amplifier These outputs are post pre amp and are affected by the controls on the radio Troubleshooting Low Power If the voltage to the radio drops to low for normal operation the front panel LED will alternate between green and red and no audio will be heard until this situation is corrected 4 No Sound Make sure the radio is getting power Check all fuses and wiring Make sure speakers are properly connected and in good working order Weak Noisy Reception Make sure the antenna is connected to the radio and in good working order The cable for the antenna can become damaged Check for continuity between the center pin of the connector and the antenna mast Also check for shorts between the center pin and the outer shield The FMR 1 uses sophisticated noise blankers to reduce or eliminate most engine generator noise If engine or generator noise is still present investigate the cause of this noise i e spark plugs and wires generator alternator suppression condensers etc PowerOnDiagnostics Each time the radio is powered on it uses a sophisticated method to check the speaker outputs for problems If found the specific speaker channel is disabled and the error is reported on the front panel LED if installed The LED will flash a pattern similar to that used by the automotive ODB standard The pattern consists of a number of flashes
9. tached to that output All unused wires should be taped up so they can t short out The radio can now be mounted back into the vehicle as original and connected to the new wiring harness Reattach the battery cable Installation is now complete Operation Your converted radio will operate as before but with new performance and features LED If your radio has a front panel status LED installed it will oe the current operating mode as for AM FM Bluetooth Auxiliary an Errors The color of the LED for each mode will be as shown in the Configuration section of this manual Mode Select Mode selection AM FM Aux is accomplished in different ways depending on your radio In the following description power cycling refers to quickly switching the radio off and back on Each time this is done the radio with change to the next mode The radio will always return to the last mode selected when first turned on If your radio has an AM FM band switch it will work as normal otherwise AM FM selection is done by power cycling The Auxiliary Input is selected by either tuning to the low end of the dial automatically when a signal is sensed VOX or power switch cycling Refer to the Configuration portion of this manual for information on how your radio was configured Balance Fader If your radio has balance fader controls they will operate as before If your radio does not have balance fader controls the FMR 1 enables virtual controls
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