Optimus 120-1971B manual Connecting the Amplifier

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Place the amplifier on the desired mounting location, then follow these steps to connect power to the amplifier, see illustration in Faxback Doc #18004.

1.Connect one end of the supplied black (ground) wire to a nearby part of the vehicle's metal frame (chassis ground).

NOTE: Many modern vehicle parts are made of plastic or other materials that do not conduct electricity. You must connect the black (ground) wire to a metal part that is not insulated from the vehicle's frame by one of these non-conducting parts.

2.Connect the other end of the wire to the amplifier's GND terminal.

3.Connect one end of the supplied red (power) wire directly to your vehicle's +12 volt battery power source.

4.Connect the other end of the wire to the amplifier's +12V terminal.

5.Connect one end of the supplied blue with white stripe (remote) wire's male quick disconnect plug to your autosound system's switched power output lead.

6.Connect the other end of the wire to the amplifier's REM terminal. This connection turns the amplifier on/off when you turn your autosound system on/off.

CONNECTING THE AMPLIFIER

You can connect your autosound system to the amplifier's low- or high-level input terminals.

If your autosound system has phono-type outputs, connect them to the amplifier's low level input terminals for a cleaner, less noisy signal. If your autosound system has only speaker outputs, connect them to the amplifier's high-level input terminals.

Low-Level Inputs

Your amplifier has gold-plated low-level input terminals to match radios and equalizers with phono-type line-level outputs.

Using plug-to-plug phono cables (such as Radio Shack cat. No.

42-2356, not supplied), connect the autosound system's left and right, low-level output phono jacks to the amplifier's corresponding left and right LOW INPUT phono terminals, see illustration in Faxback Doc. #18004.

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Contents Page Connecting Power Choosing a Mounting LocationIncluded with the Amplifier Connecting the Amplifier Testing the Amplifier Connecting the OutputsPage Page Setting the Input Level Control Turning on the AmplifierListening Safely Page Replacing a Fuse Ground Wire Color Wire Specs Label Remark WHT/BLKFront L 2P Cord GRY/BLK Front R BlackORG/WHT Dimmer Strip Solder PINK/WHT Phone Mute White REDIgnition Trans Strip Solder Yellow +12 V OutputIgnition Trans Strip Solder Gray Front R+ Green Rear L+ Violet Rear R+ REDGRAY/BLK RearWH/BLK BR/BLKCS 10/10/95 LN-03/04