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Radio Shack 85 owner manual Floating Ground Connection Common Ground

Models: 85

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Page 13

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

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

If your autosound system has only two speaker outputs and you are going to use four speakers:

Floating

Ground

Connection

Common

Ground

Connection

13

Image 13

Radio Shack 85 owner manual Floating Ground Connection Common Ground, fmPage 13 Tuesday, July 13, 1999 10 07 AM

Contents

12-1977.fmPage 1 Tuesday, July 13, 1999 10 07 AM 85× 4 High Power 4-Channel Trunk Mount AmplifierInput Level Controls - let you adjust FEATURESAutomatic Power Switching - auto 14k Gold-Plated Noise-IsolatedMute Turn On Circuit - eliminates Power Indicator - lights when power is onShort Circuit Protection - distorts CONTENTS PREPARATION BEFORE YOU BEGIN THE INSTALLATIONCHOOSING A MOUNTING LOCATION Cautions CONNECTING GROUND AND PRIMARY/SWITCHED POWER2.Securely connect the supplied dark blue/white wire’s spade connector end to the amplifier’s REM remote power terminal Low Level Input Connections CONNECTING TO YOUR AUTOSOUND SYSTEMrear-leftto CH3 and rear-rightto CH4 front-leftto CH1 and front-rightto CH2, or12-1977.fmPage 9 Tuesday, July 13, 1999 10 07 AM Note For the best results, use shielded phono plug-to-phonoplug Y- adapter audio cables, such as Cat. No. 42-2368not supplied High-LevelInput Connections Connection Floating Ground Connection Common Ground12-1977.fmPage 12 Tuesday, July 13, 1999 10 07 AM Connection Floating Ground Connection Common Ground12-1977.fmPage 13 Tuesday, July 13, 1999 10 07 AM Preparing the Speaker Wires CONNECTING THE SPEAKERSConnecting Four Speakers Connecting Two Speakers Unbridged Connection Connecting Two Speakers Bridged Connection 1.Connect the two speakers to the CH1 and CH2 terminals front speakers or to the CH3 and CH4 terminals rear speakers 1.Connect the two speakers to the CH1 and CH2 terminals front speakers or to the CH3 and CH4 terminals rear speakers TESTING THE CONNECTIONS MOUNTING THE AMPLIFIER 6.Reconnect the wiring OPERATION SETTING THE LEVEL CONTROLTURNING ON THE AMPLIFIER CautionsX-OVERFREQ On/Off Switch USING THE FREQUENCY CROSSOVERX-OVERFREQ Control MAINTENANCE Replacing the Tube-TypeFuse REPLACING THE FUSESReplacing a Blade-TypeFuse CautionsSPECIFICATIONS Fort Worth, Texas RADIO SHACK A Division of Tandy CorporationWe Service What We Sell