Manuals / Radio Shack / Home Audio / Stereo Amplifier

Radio Shack 85 owner manual Contents

Models: 85

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CONTENTS

12-1977.fm Page 4 Tuesday, July 13, 1999 10:07 AM

CONTENTS
Preparation	5
Choosing a Mounting Location	5
Before You Begin the Installation	5
Connecting Ground and Primary/Switched Power	6
Connecting to Your Autosound System	8
Low Level Input Connections	8
High-level Input Connections	11
Connecting the Speakers	14
Preparing the Speaker Wires	14
Connecting Four Speakers	15
Connecting Two Speakers (Unbridged Connection)	16
Connecting Two Speakers (Bridged Connection)	17
Connecting Two Unbridged Speakers
and One Unbridged Subwoofer	18
Connecting Two Unbridged Speakers
and One Bridged Subwoofer	19
Testing the Connections	20
Mounting the Amplifier	21
Operation	23
Turning On the Amplifier	23
Setting the Level Control	23
Using the Frequency Crossover	24
X-Over Freq On/off Switch	24
X-Over Freq Control	24
Maintenance	25
Replacing the Fuses	26
Replacing the Tube-Type Fuse	26
Replacing a Blade-Type Fuse	26
Specifications	27

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Radio Shack 85 owner manual Contents

Contents

85× 4 High Power 4-Channel Trunk Mount Amplifier 12-1977.fmPage 1 Tuesday, July 13, 1999 10 07 AMFEATURES Input Level Controls - let you adjustAutomatic 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 CONNECTING GROUND AND PRIMARY/SWITCHED POWER Cautions2.Securely connect the supplied dark blue/white wire’s spade connector end to the amplifier’s REM remote power terminal CONNECTING TO YOUR AUTOSOUND SYSTEM Low Level Input Connectionsrear-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 CONNECTING THE SPEAKERS Preparing the Speaker WiresConnecting 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 SETTING THE LEVEL CONTROL OPERATIONTURNING ON THE AMPLIFIER CautionsX-OVERFREQ On/Off Switch USING THE FREQUENCY CROSSOVERX-OVERFREQ Control MAINTENANCE REPLACING THE FUSES Replacing the Tube-TypeFuseReplacing a Blade-TypeFuse CautionsSPECIFICATIONS Fort Worth, Texas RADIO SHACK A Division of Tandy CorporationWe Service What We Sell