IBM SY27-2528-6 3274 Model 51C 52C 61C Control Unit Maintenance Concepts Nov84 free download

File name SY27-2528-6_3274_Model_51C_52C_61C_Control_Unit_Maintenance_Concepts_Nov84.pdf

-- - - - - -- ----- -- --- - - - - - - --.- ---.. --- == == ';" == -~- Maintenance Library - - -- -- - - --- -- -- - - - - - ---- --- - ..-. -. -- - --- - - Control Unit -- - - - --- - Models 51 C, 52C, and 61 C Maintenance Concepts SY27 -2528-6 Federal Communications Commission (FCC) Statement Warning: This equipment generates, uses, and can radiate radio frequency energy and if not installed and used in accordance with the instructions manual, may cause interference to radio com- munications. It has been tested and found to comply with the limits for a Class A computing device pursuant to Subpart J of Part 15 of FCC Rules, which are designed to provide reasonable protection against such interference when operated in a commercial environment. Operation of this equipment in a residential area is likely to cause interference in which case the user at his own expense will be required to take whatever measures may be required to correct the interference. IBM Statement This warning is also applicable to all attaching units produced for use in the U.S.A. that have been manufactured after December 31, 1980. A notice of compliance has been affixed within the customer access area of all affected units. Seventh Edition iNovember 19B4i This major revision obsoletes SY27-2528-5. Significant changes having been made throughout, this edition should be reviewed in its entirety. The drawings and specifications contained herein shall not be repro- duced in whole or in part without written permission. IBM has prepared this maintenance manual for the use of IBM customei engineeis in the installation, maintenance, Oi iepaii of the specific machines indicated. IBM makes no representations that it is suitable for any other purpose. Information contained in this manual is subject to change from time to time. Any such change will be reported in subsequent revisions or Technical Newsletters. References in this publication to IBM products, programs, or services do not imply that IBM intends to make these available in all countries in which IBM operates. Any reference to an IBM program product in this publication is not intended to state or imply that only IBM's program product may be used. Any functionally equiva- lent program may be used instead. Publications are not stocked at the address given below. Requests for IBM publications should be made to your IBM representative or to the IBM branch office serving your locality. A form for readers' comments is provided at the back of this publi- cation. If the form has been removed, address comments to IBM Corporation, Department 52Q, Neighborhood Road, Kingston, N. Y. U.S.A. 12401. IBM