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SRS Labs SR510 manual 2

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Contents
Page Page TABLE OF CONTENTS Condensed Information SAFETY Guide to Operation Front Panel Calibration and Repair Appendix A: Noise Sources and Cures Appendix B: RS232 Appendix C: GPIB Appendix D: Program Examples LINE VOLTAGE SELECTION LINE FUSE LINE CORD OPERATE WITH COVERS IN PLACE Page General Signal Channel Reference Channel Demodulator Outputs & Interfaces Front Panel Summary Abridged Command List Configuration Switches Signal Inputs Signal Filters Sensitivity Dynamic Reserve Status Diplay Select Output Expand Offset Time Constant Noise Reference and Trigger Level Phase Controls Power Local and Remote Defaults AC Power GPIB Connector RS232 Connector Signal Monitor Output Preamp Connector AMP CAL VCO INPUT VCO RANGE FREQUENCY CAL VCO Communicating with the SR510 Command Syntax Front Panel Status LED's RS232 Echo and No Echo Operation Try-Outwith an ASCII Terminal SR510 Command List A {n} auto offset B {n} bandpass J {n1,n2,n3,n4} end-of-record K n key press L m {,n} output R {n} input trigger S {n} T m {,n} Status Byte Errors Reset Trouble-ShootingInterface Problems Common Hardware Problems include: Common Software Problems include: The SR510 with the RS232 Interface Data Communications Equipment (DCE) The SR510 with the GPIB Interface GPIB Capabilities Serial Polls and Service Requests GPIB with RS232 Echo Mode The SR510 with BOTH Interfaces The Lock-inTechnique A Measurement Example Understanding the Specifications Shielding and Ground Loops Page Page SR510 Block Diagram The Signal Channel Reference Channel Phase Sensitive Detector DC Amplifier and System Gain A Microprocessor Based Design Introduction Signal Amplifier Current Amplifier Bandpass Filter Reference Oscillator Demodulator and Low Pass Amplifier Analog Output and Control Expand Front Panel Microprocessor Control RS232 Interface GPIB Interface Power Supplies Internal Oscillator Multiplier Adjustments Replacing the Front-EndTransistors Non-EssentialNoise Sources Capacitive Coupling Inductive Coupling Page CASE 1 - The Simplest Configuration CASE 2 - RS232 with Control Lines Baud Rate Stop Bits Parity Final Tip Voltage Levels Bus Description Appendix D: Program Examples Program Example 1: IBM PC, Basic, via RS232 Program Example 2: IBM PC, Microsoft Fortran v3.3, via RS232 Page Program Example 3: IBM PC, Microsoft C v3.0, via RS232 Page Program Example 4: IBM PC,Microsoft Basic, via GPIB Page Program Example 5: HP85 via GPIB Documentation Main Assembly PCB Parts List Page Page Page Page Page Page Page Page Page Page Page Page Page Internal Oscillator PCB Parts List Miscellaneous Parts List Front Panel Parts List