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Manafacture: Orion Car Audio File size: 820.49 kb File name: Language of manual:

If using an RGC2, adjust the level to the output of the woofer to match the sonic requirements of the system. 12. Enjoy your awesome Orion sound system. © 2009 Directed Electronics. All rights reserved. Adjusting the Sound of the System (Advanced) This method requires using a digital multimeter (DMM) and is more accurate than adjusting by ear. Find the optimum AC voltage output of your amplifier by using Ohm’s law. For example: if you have a 200 watt (rms) mono amplifier that you are going to run at 2 ohms. Multiply the power by the resistance which equals 400, the square root of 400 is 20. According to the calculation, the amplifier needs to read 20 volts AC for optimum power output. E = P x R 200 watts x 2 ohms = 400 E = 20V AC E = AC Voltage that will be measured across speaker outputs. P = Power in Watts, R = Total Resistance of a speaker(s) hooked to one channel. The following steps detail the process. 1. Using Ohm’s law calculate the amplifiers target voltage output (as in the afore shown example). 2. Obtain a test tone CD with 50Hz tone for Subwoofer amplifiers. Make sure the sin-waves has a 0db reference level at 50Hz. 3. Disconnect all the speakers from the system. 4. Turn off all source unit processing, Loudness, EQ’s, Intelli-Q and set all adjustments to flat (Bass/Treble controls). 5. Turn amplifier gain control all the way down. 6. Adjust the source unit volume to about . to insure a non clipped signal out of the unit. 7. Play the 50Hz sine-wave. 8. Set DMM to AC voltage. Connect the black (negative) probe to the (-) speaker output and the red (positive) probe to the (+) speaker output. 9. Start slowly increasing the gain until your target voltage from step one is achieved. If there are multiple amplifiers (more than one of the same sub amplifier). Set all amplifiers to the same output voltage. 10. Now turn source unit down and reconnect speakers. 11. Play music you are familiar with and listen to the system to determine if it’s too loud. If the system is too loud; turn the gain down until a desired output is achieved. Never turn the gain up because clipping and distortion may occur. 12. Your system is now properly tuned to its maximum potential. Enjoy! © 2009 Directed Electronics. All rights reserved. Amplifier Visual Troubleshooting Your new Orion HCCA amplifier has three indicator lights (LED’s) on the top cover of the amplifier as seen in the next figure. These lights are very useful in troubleshooting possible amplifier problems and issues. Power LED: This LED lights up green when the amplifier is turned on. This represents normal operation if the Protection/ESP Status LED is on solid, and the Thermal LED is off. Protection /ESP Status Indicator LED: This LED lights up blue if the amplifier goes into protection. It also will flash when the amplifier is powering up, approximately 4-5 flashes until the turn-on delay has expired (actual number of flashes depends on the length of time selected via the bitwriter). Below is a description of reasons the amplifier could engage the protection circuit. The protection indications will self reset once the condition has been fixed. Advanced troubleshooting can be performed using the ESP Status LED. ....Short: Speaker wires pinched or shorted together or to ground (frame of vehicle). ESP Status LED will also flash two short flashes, followed by a long pause( approximately 8-10 seconds). ....Overcurrent: Check for possible speaker issue(s) or speaker wiring pinched in a door or other metal. Make sure speaker(s) load is not below minimum 1. load. The ESP Status LED will also flash 2 short pulses, followed by a long pause. ....DC Offset: This can happen if the installation inadvertently connects the power wire to the speaker input(s). This can also happen if the amplifier has an internal problem. The amplifier will flash 4 short pulses, followed by a long pause, then repeat. ....Undervoltage: Vehicle charging system is not supplying enough voltage to the amplifier. This can also occur if you use too small a gauge wire or the terminals connecting the amplifier power to the electrical system are dirty or corroded. The ESP status LED also will give one short flash followed by a long pause for under- voltage. This cycle will repeat. ....Overvoltage: Vehicle charging system is supplying too much voltage or over the amplifiers rated DC input. Usually this occurs when there is a problem with the electrical system. Turn off the headunit when jump-starting the car. The ESP Status LED will also flash with one long flash followed by a long pause (approximately 8-10 seconds). ....Thermal: If the amplifier heat sink temperature is too high to continue safe operation, it will also enter protection mode. The ESP/Protection status LED will give 3 short flashes followed by a long pause. This cycle will then repeat. Thermal LED: This LED lights up red if the amplifier overheats. An amplifier enters thermal protection due to conditions that might otherwise result in damage t...

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