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Agilent 4291B RF Impedance/Material Analyzer SERVICE MANUAL SERIAL NUMBERS This manual applies directly to instruments with serial number prex JP1KE, or rmware revision 01.00. For additional important information about serial numbers, read \ANALYZERS COVERED BY THIS MANUAL" in General Information of this service manual. Agilent Part No. 04291-90111 Printed in JAPAN March 2001 Notice The information contained in this document is subject to change without notice. This document contains proprietary information that is protected by copyright. All rights are reserved. No part of this document may be photocopied, reproduced, or translated to another language without the prior written consent of the Agilent Technologies Company. Agilent Technologies Japan, Ltd. Component Test PGU-Kobe 1-3-2, Murotani, Nishi-ku, Kobe-shi, Hyogo, 651-2241 Japan Copyright 1998, 2000, 2001 Agilent Technologies Japan, Ltd. c Manual Printing History The manual printing date and part number indicate its current edition. The printing date changes when a new edition is printed. (Minor corrections and updates that are incorporated at reprint do not cause the date to change.) The manual part number changes when extensive technical changes are incorporated. January 1998 : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : First Edition May 1998 : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : Second Edition (part number: 04291-90111) June 2000 : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : Third Edition (part number: 04291-90111) March 2001 : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : Fourth Edition (part number: 04291-90111) iii Safety Summary The following general safety precautions must be observed during all phases of operation, service, and repair of this instrument. Failure to comply with these precautions or with specic WARNINGS given elsewhere in this manual violates safety standards of design, manufacture, and intended use of the instrument. The Agilent Technologies Company assumes no liability for the customer's failure to comply with these requirements. Note 4291B comply with INSTALLATION CATEGORY II and POLLUTION DEGREE 2 in IEC1010-1. 4291B are INDOOR USE product. Note LEDs in 4291B are Class 1 in accordance with IEC825-1. CLASS 1 LED PRODUCT Ground The Instrument This is a Safety Class 1 product (provided with a protective earth terminal). An uninterruptible safety earth ground must be provided from the ma