INTRODUCTION Chapter 11 describes the hardware aspect of the computer. The entire circuit is divided into functional blocks and investigated one by one in depth. This chapter is particularly useful for those service personnel who need to know the function of each component, the structure and organisation of the system buses, the general signal flow and timing waveforms of the various signals. Besides, it also contains valuable information on the function and electrical characteristic of the signals on the various expansion connectors on the computer which is required by the peripheral hardware designers.
The appendices at the end of this manual provides supplementary information to the reader. These include schematics, PCB and component layouts, parts lists, gate-array pin assignments and data sheets for some of the major components used in the computer. 1-2