Shure service manual SR105 Power Amplifier Front Panel

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FIGURE 1. SR105 POWER AMPLIFIER FRONT PANEL

FIGURE 2. SR105 POWER AMPLIFIER REAR PANEL

(SR105A MODEL SHOWN)

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Contents SR105 Power Amplifier Specifications Iii Page Table of Contents Page SR105 Power Amplifier DescriptionSR105 Power Amplifier Front Panel Operating Instructions General Operating InstructionsPower Requirements Mounting and VentilationThermal Overload Input ConnectionsSR105 Power Amplifier Block Diagram Output Connections Direct Output only Recommended Wire Gauge VS. AMPLIFIER-TO-SPEAKER Distance AMPLIFIER-TO-SPEAKER Distance MetersVolt Output Output Voltage MeterAdding SR105A Amplifiers in a 70-VOLT System Cascaded Special Operating InstructionsBasic Operating Hints Coil Bridging ConnectionsAdding Headphone Jack to Speaker Connections Service Instructions Printed Circuit Board Removal Small Signal and Predriver Transistors Driver TransistorsOutput Transistors DiodesDiode Bridge Rectifier Checking Transistors and DiodesCOM GRN RED YEL BLKWHT Service Illustrations GNDJI J2 Page RKC37 TB1TB2 XF1RKC9 RKC53IRC CEC-TO Main Circuit Board Parts Location Diagram Troubleshooting GeneralAC Voltage Measurements DC Voltage MeasurementsPage SR105 Power Amplifier Circuit Diagram Page Constant Voltage 70-VOLT Speaker Output Architects Andengineers SpecificationsCondensed Operating Instructions