IBM SY24-3581-1 3145 Processing Unit Theory-Maintenance Oct71 free download

File name SY24-3581-1_3145_Processing_Unit_Theory-Maintenance_Oct71.pdf

- - -- - - -- - - -- -- - --- - -- == -' - --. --~- ---- = '; == Maintenance Library - - --- - ==- - ==- -= =-=- =-= == -- - - -- --== - - - -- ----- - - -- == - - Processing Unit Theory - Maintenance SY24-3581-1 PREFACE This manual is for readers who understand the basic concepts of (30 through 33). The contents of each volume is identified on computers and system programming. Introductory information the accompanying red MOM tab. that describes data formats, instruction formats, status switching, Because this manual is split into four parts, the index is in the and program interrupts is in IBM System/360 Principles of front of the manual. The index,which effectively points to Operation, GA22-6821; and IBM System/370 Principles of the places where information exists, follows the chart showing Operation, GA22-7000. the major areas of each chapter. Each chapter contains its own Integrated graphic techniques are used where practical to contents. This makes it unnecessary to refer back to Volume 30 provide standalone diagrams and modular units of information. whenever you are looking for specific information within a The information ranges from basic system concepts, contained particular chapter. in Chapter 1, to the detailed operations of a functional unit or area contained in Chapters 2-13. Each chapter contains a modular This manual references diagrams in the 3145 Processing Unit, segment of information about a major functional area of the Maintenance Diagrams, SY24-3580. system, such as CPU, storage and console. Other related manuals are: This manual also contains information to be used in maintaining IBM System/370 Model 145 Functional Characteristics, or repairing the 3145. It also includes CPU reference data; GA24-3557 channel reference data; maintenance techniques; checks, adjust- IBM System/370 Model 145 Operating Procedures, C38-0015 ments, and removal procedures, power and cooling maintenance IBM System/370 Model 145 Channel Characteristics, procedures; physical