Introduction; Computer Block Diagram - HP 9030 Service Manual

Theory of Operation
Chapter
2
Introduction
This chapter describes the theory of operation of the computer. Included are functional descriptions
of each section of the computer. Figure 2-1 is a functional block diagram of the computer, showing
all the functional modules described in this chapter. Figure 2-2 shows how the computer modules
are interconnected. It provides cabling information, connector deSignations, and number of pins
per connector.
PROCESSOR STACK
POWER SUPPLY
MOTHERBOARD
1/0 BACKPLANE"
RAM
~
sca
PRIMARY BD.
~
SC1
lOP lOP BUS
~
SC2
SECONDARY BD.
CPU
SC3
~
SC4
SUPERVISOR BD.
~
SC5
- - SC6
I
1
*AVAILABLE 10 CARDS
SERVICE PANEL SYSTEM CONTROL
Hp·IB
MODULE
GP·IO
PSI
CONTROL STATUS SC7
ASI (RS232)
MUX
LAN
SRM
RJE
RGB Video
Figure 2-1. Computer Block Diagram
2-1