IBM Bulletin 233 64 2 Memory Maintenance Removal and Replacement Procedures Jul58 free download

File name Bulletin_233_64_2_Memory_Maintenance_Removal_and_Replacement_Procedures_Jul58.pdf

Bulletin No. 233 64 Memory Maintenance 64 2 MEMORY MAINTENANCE REMOVAL AND REPLACEMENT PROCEDURES July, 1958 MILITARY PRODUCTS DIVISION INTERNATIONAL BUSINESS MACHINES CORPORATION KINGSTON, NEW YORK IBM r-1 KINGSTON The work reported in this document was performed under a ~ government contract. Information contained herein is of a TECHNICAL proprietary nature. ALL INFORMATION CONTAINED PUBLICATIONS HEREIN SHALL BE KEPT IN CONFIDENCE. No informa- tion shall be divulged to persons other than IBM employees authorized by the nature of their duties to receive such in- formation or individuals or organizations who are author- ized in writing by the Department of Engineering or its ap- pOintee to receive such information. GOVERNMENT RE- LEASE MUST BE OBTAINED THROUGH THE CONTRACT ADMINISTRATION DEPARTMENT BEFORE THlS INFOR- MATION MAY BE USED FOR COMMERCIAL APPLICA.. TIONS. . UNCLASSIFIED FOREWORD The information contained herein supersedes the. related text on removal and replacement procedures in the Preliminary Maintenance Data Book on Core Memory, and in T.O. 31P2-2FSQ7-142 dated April 1, 1957. Sup- plementary information on memory array assembly and part details is available in Volume In of T.O. 31P.2-2FSQ7-4, Illustrated Parts Breakdown (first revision) pages 322- 359. This bulletin is intended to be self-contained with regard to removal and replacement pro- cedures only. In those instances where re- placement of a critical unit necessitates electrical adjustment, reference is made in the text to the applicable Instruction Bulletin. UNCLASSIFIED UNCLASSIFIED TABLE OF CONTENTS Heading Page 1.. Memory Array Cover Removal