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Part No . 070-4416-00 Product G roup 26 494/494P SPECTRUM ANALYZER OPTIONS INCLUDED VOLUME WARNING THE FOLLOWING SERVICING INSTRUC- TIONS ARE FOR USE BY QUALIFIED PERSONNEL ONLY . TO AVOID PERSONAL INJURY, DO NOT PERFORM ANY SERVIC- ING OTHER THAN THAT CONTAINED IN OPERATING INSTRUCTIONS UNLESS YOU ARE QUALIFIED TO DO SO . REFER TO OPERATORS SAFETY SUMMARY AND SERVICE SAFETY SUMMARY PRIOR TO PERFORMING ANY SERVICE. Please Check for CHANGE INFORMATION at the Rear of This Manual 49414941P Service Vol . 1 TABLE OF CONTENTS Service instructions are contained in two volumes as follows: VOLUME 1 Page Page LIST OF ILLUSTRATIONS . . . . . . . . . . . . . . . . . . . . vi Section 3 INSTALLATION AND REPACKAGING LIST OF TABLES . . . . . . . . . . . . . . . . . . . . . . . . . . . ix Introduction . . . . . . . . . . . . . . . . . . . . 3-1 SERVICING SAFETY SUMMARY . . . . . . . . . . . . . . . x Unpacking and Initial Inspection . . . . 3-1 Power Source and Power Section 1 GENERAL INFORMATION Requirements . . . . . . . . . . . . . . . . . . 3-2 Introduction . . . . . . . . . . . . . . . . . . . . 1-1 Repackaging for Shipment . . . . . . . . 3-3 History . . . . . . . . . . . . . . . . . . . . . . . . 1-1 Storage . . . . . . . . . . . . . . . . . . . . . . . 3-4 Level of Competences . . . . . . . . . . . . 1-1 Standards and Conventions Used . . 1-1 Section 4 PERFORMANCE CHECK Conformance to Industry Standards . 1-1 Introduction . . . . . . . . . . . . . . . . . . . . 4-1 Product Description . . . . . . . . . . . . . . 1-2 Incoming Inspection . . . . . . . . . . . . . 4-1 Product Service . . . . . . . . . . . . . . . . . 1-2 Verification of Tolerance Values . . . . 4-1 Instrument Construction . . . . . . . . . . 1-2 History Information . . . . . . . . . . . . . . 4-1 Elapsed Time Meter . . . . . . . . . . . . . 1-3