Shure SR105 service manual

Contents SR105 Power Amplifier Specifications Iii Page Table of Contents Page SR105 Power Amplifier DescriptionSR105 Power Amplifier Front Panel Operating Instructions General Operating InstructionsThermal Overload Power RequirementsMounting and Ventilation 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 MeterSpecial Operating Instructions Basic Operating HintsAdding SR105A Amplifiers in a 70-VOLT System Cascaded Bridging Connections Adding Headphone Jack to Speaker ConnectionsCoil Service Instructions Printed Circuit Board Removal Small Signal and Predriver Transistors Driver TransistorsDiode Bridge Rectifier Output TransistorsDiodes Checking Transistors and DiodesGRN RED YEL BLK WHTCOM Service Illustrations GNDJI J2 Page TB2 RKC37TB1 XF1RKC53 IRC CEC-TORKC9 Main Circuit Board Parts Location Diagram AC Voltage Measurements TroubleshootingGeneral DC Voltage MeasurementsPage SR105 Power Amplifier Circuit Diagram Page Architects Andengineers Specifications Condensed Operating InstructionsConstant Voltage 70-VOLT Speaker Output