安捷伦HP_54121A_20GHz_Four_Channel_Test_Set_Service_Manual维修手册含电器原理图

Notice:Hewlett-Packard's former Test and Measure-ment business became part of Agilent Technologies in1999 and then Keysight Technologies in August 2014.HEWLETTThis document is provided as a courtesy but is no longerPACKARDkept current and thus will contain historical referencesto Agilent,HP or Hewlett-Packard.For more informa-tion,go to www.keysight.com.KEYSIGHTSERVICE MANUALTECHNOLOGIESHP54121AFour Channel Test SetSERIAL NUMBERSThis manual applies directly to instrumentsprefixed with serial number:2926AWith changes described within,this manual alsoapplies to instruments with serial prefixes:2714A2802A2845AFor Additional Information about serial numbers seeINSTRUMENTS COVERED BY THIS MANUALin Section 1.COPYRIGHT HEWLETT-PACKARD COMPANY/COLORADO DIVISION 19891900 GARDEN OF THE GODS ROAD,COLORADO SPRINGS,COLORADO U.S.A.ALL RIGHTS RESERVEDManual Part No.54121-90905Microfiche Part No.54121-90805Printed in U.S.A.:July 1989