IBM Bulletin 232 64 2 Memory Maintenance Adjustment Procedures Jul58 free download

File name Bulletin_232_64_2_Memory_Maintenance_Adjustment_Procedures_Jul58.pdf

BULLETIN NO. 232 64 MEMORY MAINTENANCE 2 64 MEMORY MAINTENANCE ADJUSTMENT PROCEDURES July, 1958 MILITARY PRODUCTS DMSION INTERNATIONAL BUSINESS MACHINES CORPORATION KINGSTON, NEW YORK IBM r- KINGSTON I 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 sucll information. GOVERNMENT RE- LEASE MUST BE OBTAINED THROUGH THE CONTRACT ADMINISTRATION DEPARTMENT BEFORE THIS INP'OR- MATION MAY BE USED FOR COMMERCIAL APPLICA- TIONS. FOREWORD The information contained herein supersedes the related text on adjustment procedures in the Pre- liminary Maintenance Data Book on Core Mem- ory,andin T.O. 31P2-2FSQ7-142, dated April 1, 1957. This bulletin is intended to be self-contained with regard to adjustment procedures only. It in- cludes the detailed adjustment procedures nec- essary for properly setting up an oscilloscope, for retuning the memory, and for ensuring that the spare clock conforms to the memory timing of the computer. Where outside references are requ,ired, the read- er is directed, in the text, to the applicable In- struction Bulletin. TABLE or CONTENTS Heading Page 1. Tuning Procedure for X10 Oscilloscope Probe 1 2. Voltage Calibration of Tektronix Oscilloscope, Type 545 1 2.1 Calibration Equipment Requirements 1 2.2 Procedure 1 2.3 Function of Special Graticule (3033583) 4 3. Sweep Calibration of Tektronix Oscilloscope, Type 545 4 4. Core Memory Tuning Procedure 6 4.1 General