Radio Shack 85 owner manual Fm Page 22 Tuesday, July 13, 1999 1007 AM

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12-1977.fm Page 22 Tuesday, July 13, 1999 10:07 AM

3.Using the mounting holes on the amplifier as a guide, mark the locations for the mounting holes.

4.Drill 9/64-inch holes in the marked locations, being careful not to damage anything behind the mounting surface.

5.Attach the amplifier to the mounting surface using the supplied sheet-metal screws and washers.

6.Reconnect the wiring.

7.Reconnect your vehicle battery’s negative (-) cable.

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Contents 85 × 4 High Power 4-Channel Trunk Mount Amplifier Features Automatic Thermal ProtectionMute Turn On Circuit eliminates Contents Preparation Before YOU Begin the InstallationChoosing a Mounting Location Connecting Ground and PRIMARY/SWITCHED Power Illus please add a dwg that illustrates step Connecting to Your Autosound System Low Level Input ConnectionsFm Page 9 Tuesday, July 13, 1999 1007 AM Fm Page 10 Tuesday, July 13, 1999 1007 AM High-Level Input Connections Floating Ground Connection Common Fm Page 13 Tuesday, July 13, 1999 1007 AM Connecting the Speakers Preparing the Speaker WiresConnecting Four Speakers Connecting Two Speakers Unbridged Connection Connecting Two Speakers Bridged Connection Fm Page 18 Tuesday, July 13, 1999 1007 AM Connecting Two Unbridged Speakers and One Bridged Subwoofer Testing the Connections Mounting the Amplifier Fm Page 22 Tuesday, July 13, 1999 1007 AM Operation Setting the Level ControlTurning on the Amplifier Over Freq On/Off Switch Using the Frequency CrossoverOver Freq Control Maintenance Replacing the Tube-Type Fuse Replacing the FusesReplacing a Blade-Type Fuse Specifications Radio Shack